CN103597717B

CN103597717B - There is electric rotating machine and the starter motor of internal combustion engine control signal output function

Info

Publication number: CN103597717B
Application number: CN201280027905.7A
Authority: CN
Inventors: 寺田金千代; 永田孝一
Original assignee: Denso Corp
Current assignee: Denso Corp
Priority date: 2011-06-06
Filing date: 2012-05-31
Publication date: 2016-05-18
Anticipated expiration: 2032-05-31
Also published as: JP2013102667A; CN103597717A; WO2012169156A1; JP5811945B2

Abstract

A kind of rotor (30), it is provided with the magnet (32N, 32S) with opposed polarity along direction of rotation. Stator (40) is provided with multiple tooth portions (41) along direction of rotation, is wound with coil (CU, CV, CW) in described tooth portion (41). Phase sensor (SU, SV, SW) is relative with described magnet (32N, 32S), and the output crank position signal corresponding with the polarity of rotary magnet (32N, 32S). Some formation in described magnet (32N, 32S) are geomagnetic into the polarity different from the polarity of magnet (32N, 32S) or are not geomagnetic into the heteropole part of any polarity (34,34k). Phase sensor (SU, SV, SW) is arranged on together with rotor (30) on the swing-around trajectory of the heteropole part of rotating (34,34k). In the time that heteropole part (34,34k) is detected, phase sensor (SU, SV, SW) output represents the control signal of the absolute rotational position of the output shaft (14) of explosive motor.

Description

There is electric rotating machine and the starter motor of internal combustion engine control signal output function

The cross reference of related application

The Japanese patent application JP2011-126079,2011 that the application submitted to based on June 6th, 2011Japanese patent application JP2011-126081, on June 6th, 2011 of submitting on June 6, in submit toThe Japanese patent application JP that Japanese patent application JP2011-126082, on October 18th, 2011 submit toThe Japanese patent application JP2012-109036 that 2011-228932 and on May 11st, 2012 submit to, onThe disclosure of stating patent application is incorporated herein by reference.

Technical field

The present invention relates to a kind of electric rotating machine for internal combustion engine (for example, starter motor, magnetic power generatorMachine or motor generator), it has the internal combustion engine control letter of output for the igniter of controlling combustion engine etc.Number function.

Background technology

In patent documentation 1, a kind of brushless three-phase starter motor is described. This starter motor has and turnsSon and stator, rotor has the N utmost point magnet and the S utmost point magnet that alternately arrange along direction of rotation, statorThere is the U phase coil, V phase coil and the W phase coil that are wrapped in iron core teeth portion. Stator is provided with as followsDescribed U phase sensor, V phase sensor, W phase sensor and crank rotational position sensor.

It is relative with magnet (right that U phase sensor, V phase sensor and W phase sensor are attached in statorThe position of putting, and output U phase signals, V phase signals and the W phase corresponding with the polarity of rotary magnetSignal (motor control signal) (referring to Figure 16). By based on described motor control signal control to UThe driving of starter motor is controlled in energising (excitation) timing of phase coil, V phase coil and W phase coil.

Crank axle often turns over one and turns, and crank rotational position sensor detects heteropole magnetic portion as described belowPoint, so the internal combustion engine control signal shown in output Figure 16. That is to say, among multiple magnetsThe part of predetermined magnet in, form the heteropole magnetic portion that is magnetized to the polarity different from described magnetPoint. More particularly, the upper end shape of the predetermined S utmost point magnet in the direction perpendicular to direction of rotationBecome to be magnetized to the heteropole magnetic part of the N utmost point. Then, crank rotational position sensor is arranged on to heteropoleOn the swing-around trajectory of magnetic part. Notice, by U phase sensor, V phase sensor and W phase sensingDevice is arranged on the outside of the swing-around trajectory of heteropole magnetic part.

According to crank rotational position sensor, in the alternately detection of N utmost point magnet and S utmost point magnet,Crank axle only turned between a refunding, S utmost point magnet shown by dashed lines in Figure 16 do not detected, but inspectionMeasure heteropole magnetic part (the N utmost point). Therefore, can be by detecting heteropole magnetic part based on crank axlePosition of rotation grasp the absolute rotational position of crank axle. According to the absolute rotational position of grasp like this,The fuel of internal combustion engine sprays and is controlled the duration of ignition.

As mentioned above, except U phase sensor, V phase sensor and W phase sensor, patent literary compositionThe starter motor of offering described in 1 has crank rotational position sensor, and has output for controllingThe function of fuel injection and the internal combustion engine control signal of the duration of ignition.

Prior art document

Patent documentation

Patent documentation 1:JP-A-2009-89588

But, in above-mentioned traditional structure, due to crank rotational position sensor and U phase sensor,V phase sensor and W phase sensor arrange dividually, and the quantity of sensor is large. This increased cost,Structure is complicated or reduced reliability. In addition, and repeat interpulse between sensor outputEvery comparing, from the rotary actuation that starts internal combustion engine to detecting heteropole magnetic part, need crank axle to turn overOne turns. Therefore, from start rotate, crank axle complete one turn before, can not grasp absolute rotationPosition. Therefore, being concerned about starting of controlling fuel injection control and the duration of ignition will be delayed.

Summary of the invention

The first object of the present invention is to provide a kind of rotation with internal combustion engine control signal output functionMotor (rotary machine), wherein the quantity of sensor is reduced. The second object of the present invention is to provideHave an electric rotating machine for internal combustion engine control signal output function, it can promptly grasp internal combustion engineThe absolute rotational position of output shaft. The 3rd object of the present invention is to provide one to have internal combustion engine controlThe starter motor of signal output function, it can suppress the decline of motor output.

According to an aspect of the present invention, the electric rotating machine that has an internal combustion engine control signal output function comprisesThe rotor forming by the magnet of opposed polarity is alternately set along direction of rotation. There is internal combustion engine controlThe electric rotating machine of signal output function also comprises by arrange determining of multiple tooth portion's formation along direction of rotationSon, wherein each tooth portion is wound with coil. There is the electric rotating machine of internal combustion engine control signal output functionComprise phase sensor, this phase sensor is attached to position relative with magnet in stator and exports and revolveTurn the crank position signal corresponding to polarity of magnet. A part for predetermined magnet among multiple magnetsMiddle formation heteropole part, this heteropole part is geomagnetic into the polarity different from described predetermined magnet or notBe geomagnetic into any polarity. Phase sensor is arranged on the rotation rail of the heteropole part of rotating together with rotorOn road. In the time that phase sensor detects heteropole part, the output shaft of phase sensor output expression internal combustion engineThe internal combustion engine control signal of absolute rotational position.

According to a further aspect in the invention, the starter motor that has internal combustion engine control signal output function (risesMoving motor) comprise the rotor that the magnet by opposed polarity is alternately set along direction of rotation forms.The starter motor with internal combustion engine control signal output function also comprises by arranging multiple along direction of rotationThe stator that tooth portion forms, is wherein wound with coil in each tooth portion. There is the output of internal combustion engine control signalThe starter motor of function also comprises phase sensor, and this phase sensor is attached in stator relative with magnetThe motor control signal that position and output are corresponding with the polarity of rotary magnet. By based on detectingMotor control signal control rotarilys actuate and has the output of internal combustion engine control signal the timing of coil electricityThe starter motor of function, thereby the output shaft of rotary actuation internal combustion engine. In whole direction of rotation manyIn a part for predetermined magnet among individual magnet, form heteropole magnetic part, this heteropole magnetic part quiltBe magnetized to the polarity different from described predetermined magnet. Phase sensor is arranged on rotate together with rotor differentOn the swing-around trajectory of utmost point magnetic part. In the time that phase sensor detects heteropole magnetic part, substitute motor controlSignal processed, the output of phase sensor represents the internal combustion engine control signal of the absolute rotational position of output shaft.

According to a further aspect in the invention, there is the starter motor bag of internal combustion engine control signal output functionDraw together the rotor that the magnet by opposed polarity is alternately set along direction of rotation forms. There is internal combustion engine controlThe starter motor of signal output function processed also comprises by arrange determining of multiple tooth portion's formation along direction of rotationSon, wherein each tooth portion is wound with coil. There is the starter motor of internal combustion engine control signal output functionAlso comprise phase sensor, this phase sensor be attached to position relative with magnet in stator and output andThe motor control signal corresponding to polarity of rotary magnet. The motor control signal control detecting by basisSystem rotarilys actuate the starting horse with internal combustion engine control signal output function to the timing of coil electricityReach, thus the output shaft of rotary actuation internal combustion engine. There is the starting of internal combustion engine control signal output functionMotor also comprises by a part for the predetermined magnet among multiple magnets is magnetized to different from this magnetPolarity and the heteropole magnetic part forming by magnetize this magnet in whole direction of rotation. HaveThe starter motor of internal combustion engine control signal output function also comprises be arranged on the heteropole rotating together with rotorRotational position sensor on the swing-around trajectory of magnetic part. Rotational position sensor detects heteropole magneticPart and output represent the internal combustion engine control signal of the absolute rotational position of output shaft. Except rotation positionPut beyond sensor, described phase sensor is arranged on described swing-around trajectory. Therefore, when phase sensorWhile detecting heteropole magnetic part, substitute motor control signal, the output of phase sensor represents the exhausted of output shaftTo the internal combustion engine control signal of position of rotation.

According to a further aspect in the invention, there is the starter motor bag of internal combustion engine control signal output functionDraw together the rotor that the magnet by opposed polarity is alternately set along direction of rotation forms. There is internal combustion engine controlThe starter motor of signal output function processed also comprises by arrange determining of multiple tooth portion's formation along direction of rotationSon, wherein each tooth portion is wound with coil. There is the starter motor of internal combustion engine control signal output functionAlso comprise phase sensor, this phase sensor be attached to position relative with magnet in stator and output andThe motor control signal corresponding to polarity of rotary magnet. By the motor control signal control based on detectingSystem rotarilys actuate the starting horse with internal combustion engine control signal output function to the timing of coil electricityReach, thus the output shaft of rotary actuation internal combustion engine. There is the starting of internal combustion engine control signal output functionMotor also comprises heteropole magnetic part, and this heteropole magnetic part is formed on the determined magnetic among multiple magnetsIn a part for body and be geomagnetic into the polarity different from this magnet. There is internal combustion engine control signal defeatedThe starter motor that goes out function also comprises the rotation rail that is arranged on the heteropole magnetic part rotating together with rotorRotational position sensor on road. Rotational position sensor detects heteropole magnetic part and output representsThe internal combustion engine control signal of the absolute rotational position of output shaft. Described heteropole magnetic part is along direction of rotationBe formed in a part for described predetermined magnet.

Brief description of the drawings

Above-mentioned and other objects, features and advantages of the present invention are from the following detailed description with reference to the accompanying drawingsMiddle becoming apparent, wherein similar portions indicates by similar Reference numeral, wherein:

[Fig. 1] Fig. 1 shows according to the ACG starter (starter motor) of the first embodiment of the present inventionSchematic diagram;

[Fig. 2] Fig. 2 is the ACG starter shown in Fig. 1 and the cutaway view of crank axle;

[Fig. 3] Fig. 3 is the sketch while observing along arrow III in Fig. 2;

[Fig. 4] Fig. 4 (a) is U phase sensor, V phase sensor and the W phase for key diagram 3The sketch of the attachment location of sensor, and Fig. 4 (b) is the sketch of the modification of Fig. 4 (a);

[Fig. 5] Fig. 5 be the timing that shows the variation of the combined information NNUM in the first embodiment (timeOrder) figure;

[Fig. 6] Fig. 6 is presented at locating of the energising control to U, V, W phase coil in the first embodimentThe flow chart of reason program;

[Fig. 7] Fig. 7 is the variation that shows combined information NNUM in the second embodiment of the present inventionTiming diagram;

[Fig. 8] Fig. 8 is the variation that shows combined information NNUM in the third embodiment of the present inventionTiming diagram;

[Fig. 9] Fig. 9 is U phase sensor, the V phase sensor in the explanation fourth embodiment of the present inventionSketch with the attachment location of W phase sensor;

[Figure 10] Figure 10 is the timing diagram that shows the variation of the combined information NNUM in the 4th embodiment;

[Figure 11] Figure 11 is U phase sensor, the V phase sensing in the explanation fifth embodiment of the present inventionThe sketch of the attachment location of device and W phase sensor and the shape of heteropole magnetic part;

[Figure 12] Figure 12 is U phase sensor, the V phase sensing in the explanation seventh embodiment of the present inventionThe sketch of the shape of the attachment location of device and W phase sensor and nonmagnetic portion (space);

[Figure 13] Figure 13 shows magnet in the 7th embodiment and the perspective view of housing.

[Figure 14] Figure 14 (a) is the sketch that shows the magnet short-cut path path with heteropole magnetic part, figure14 (b) are the sketches that shows the magnet short-cut path path with nonmagnetic portion;

[Figure 15] Figure 15 (a) and Figure 15 (b) are the changes that shows the shape of nonmagnetic portion (space)The sketch of type;

[Figure 16] Figure 16 is the variation showing by the internal combustion engine control signal of traditional ACG starter outputTiming diagram;

[Figure 17] Figure 17 is U phase sensor, V phase sensor and the W phase sensor in key diagram 3The sketch of attachment location;

[Figure 18] Figure 18 is the timing diagram that shows the variation of the combined information NNUM in the 8th embodiment;

[Figure 19] Figure 19 is the variation that shows the combined information NNUM in the ninth embodiment of the present inventionTiming diagram;

[Figure 20] Figure 20 is the variation that shows the combined information NNUM in the tenth embodiment of the present inventionTiming diagram;

[Figure 21] Figure 21 is the timing that shows the variation of the combined information NNUM in the 11 embodiment(sequential) figure;

[Figure 22] Figure 22 shows according to (the starting of the ACG starter of the 12nd embodiment of the present inventionMotor) schematic diagram;

[Figure 23] Figure 23 is the sketch while observing along arrow XXIII in Fig. 2;

[Figure 24] Figure 24 is crank rotational position sensor, U phase sensor, the V in explanation Figure 23The sketch of the attachment location of phase sensor and W phase sensor;

[Figure 25] Figure 25 is the timing that shows the variation of the combined information NNUM in the 12 embodimentFigure;

[Figure 26] Figure 26 is the sketch while observing along arrow XXVI in Fig. 2;

[Figure 27] Figure 27 (a) be the crank rotational position sensor of explanation in Figure 26, U phase sensor,The sketch of the attachment location of V phase sensor and W phase sensor, Figure 27 (b) is institute in Figure 27 (a)The sketch of the modification of showing;

[Figure 28] Figure 28 is the timing that shows the variation of the combined information NNUM in the 13 embodimentFigure;

[Figure 29] Figure 29 is the timing that shows the variation of the combined information NNUM in the 14 embodimentFigure; And

[Figure 30] Figure 30 is the flow chart that shows the mistake processing of combined information NNUM.

Detailed description of the invention

Hereinafter, will describe with reference to the accompanying drawings and implement each embodiment of the present invention. Notice, withUnder each embodiment in, mutually the same or equivalent part has identical Reference numeral in the accompanying drawings,And for the part of these same reference numerals, identical explanation will be used.

(the first embodiment)

Be applied to being loaded in sulky vehicle according to the starter motor of the present embodiment (electric rotating machine)On engine (internal combustion engine). Fig. 1 has shown in the air inlet that injects fuel into engine to lightThe injector 10 of air-fuel mixture, in the combustion chamber of engine, emit the igniter of electric spark11, control the electronic control unit (ECU13) and after a while of the operation of injector 10 and igniter 11By the ACG starter 20 (starter motor) of describing.

ACG starter 20 is brushless three-phase alternating current motor, and it plays the work of the starter motor of engineWith, drive and play the effect of alternating current generator by the crank axle 14 (output shaft) of engine.Notice, in the power transfer path between driving wheel and the crank axle 14 of sulky vehicle, arrange as followsDescribed torque-transmitting mechanisms. That is to say, it is the torque-transmitting mechanisms of for example centrifugal clutch,After the motor driving of ACG starter 20 starts, this torque-transmitting mechanisms blocking-up transmission of torque,Be equal to or higher than predetermined value until the rotational speed N E of crank axle 14 becomes, and reach described pre-when rotating speedWhen definite value, implement transmission of torque.

ACG starter 20 have U phase sensor SU that output represents the U phase signals of U phase electrical angle,Output represents that V phase sensor SV and the output of the V phase signals of V phase electrical angle represent W phase electrical angleThe W phase sensor SW of W phase signals. Notice, at these U, V, W phase sensor SUIn SW, about U phase sensor SU (phase sensor), it also has output and represents crank axle 14The merit of crank position signal (the reference position signal of internal combustion engine control signal) of absolute rotational positionEnergy.

U, V, the W of ECU13 based on exporting to SW from described U, V, W phase sensor SUPhase signals (motor control signal) is controlled U phase coil CU, the V phase line to ACG starter 20The energising timing of circle CV and W phase coil CW, drives control to implement motor, thereby edge expectationDirection of rotation rotarilys actuate ACG starter 20.

Solar term sensor 15 detects the opening angle control inspiratory capacity of air throttle. Inspiratory pressure sensor 16Detect the negative pressure in air entry. The crank position of ECU13 based on for example exporting from ACG starter 20Signal, the throttle opening angle of exporting from solar term sensor 15 and export from inspiratory pressure sensor 16The signal controlling injector 10 of negative pressure and the operation of igniter 11.

More specifically, the rotational speed N E of ECU13 based on crank position calculated signals crank axle 14, andNegative pressure PM calculation engine based on being obtained by inspiratory pressure sensor 16 is loaded. In addition ECU base,In target emitted dose, target injecting time and the target ignition time of these NE and PM computing fuel.So, U, V, the W phase of ECU13 based on exporting to SW from U, V, W phase sensor SUThe absolute rotational position of signal and crank position calculated signals crank axle 14, then controls injector 10Operation, with reference to the absolute rotational position that calculates at target injecting time burner oil, and controlThe operation of igniter 11 processed, to implement igniting in the target ignition time.

Next, will utilize Fig. 2 and Fig. 3 to describe the hardware configuration of ACG starter 20. Notice,Fig. 2 is the cutaway view of ACG starter 20 and crank axle 14, and Fig. 3 observes along the III in Fig. 2Time sketch.

ACG starter 20 has the stator 40 of the inner circumferential side that is positioned at rotor 30. Rotor 30 has endThe cylindrical shell 31 of portion sealing and be fixed to permanent magnet (the N utmost point magnetic in the interior perimeter surface of housing 31Body 32N and S utmost point magnet 32S). N utmost point magnet 32N and S utmost point magnet 32S are along direction of rotation alternatelyArrange. In the example of Fig. 3, arrange 12 (12 utmost point) permanent magnets. Housing 31 for example utilizesThe fastener of bolt 33 grades is fixed on crank axle 14, and all the time with identical with crank axle 14Rotating speed (NE) rotation. In this configuration, rotor 30 also plays the effect of the flywheel of engine.

Stator 40 have above-mentioned U phase coil CU, V phase coil CV and W phase coil CW, U,V, W phase sensor SU be to SW and iron core 42, forms and on it, be wound around described line in this iron coreThe tooth portion 41 of circle. Arrange multiple tooth portion 41 along direction of rotation. U phase coil CU, V phase coil CVCW is sequentially wrapped in each in tooth portion 41 with W phase coil. In the example of Fig. 3,Arrange 18 tooth portions 41.

Be attached to U, V on the outer surface of stator 40, W phase sensor SU to SW inN utmost point magnet 32N and the relative position of S utmost point magnet 32S. In this configuration, sensor detects by turningThe N utmost point magnet 32N that the rotation of son 30 causes and the heat treatment of S utmost point magnet 32S. Notice,To SW, adopt hole ICs as U, V, W phase sensor SU. Therefore, even if work as rotor 30 notWhen rotation, can export the detection signal corresponding with the polarity of relative magnet.

U, V, W phase sensor SU are attached to respectively the not coordination in the direction of rotation of rotor to SWPut place. More specifically, U, V, W phase sensor SU to SW be arranged on multiple tooth portion 41 betweenIn different gap 41a among gap 41a. In the example of Fig. 4 (a), U phase sensor SU, VPhase sensor SV and W phase sensor SW are sequentially arranged between described multiple gap 41a adjacentIn gap. Therefore the mechanical angle that, each U, V, W phase sensor SU spend to SW skew 20.

As shown in Fig. 4 (a), at the magnet of the predetermined utmost point as multiple magnet 32S and 32NIn a part (the S utmost point magnet 32S in the example of Fig. 4 (a)) of 32S (A), form following retouchingThe heteropole magnetic part 34 of stating. That is to say, only the dashed area in Fig. 4 (a) is geomagnetic into notBe same as the polarity (the N utmost point) of S utmost point magnet 32S. This heteropole magnetic part 34 is along the rotation of rotorDirection (vertical direction in Fig. 4 (a)) be formed on the end of predetermined magnet 32S (A), andAnd be formed as making the polarity of this predetermined magnet 32S (A) to be present in the both sides of heteropole magnetic part 34.That is to say, the upper end edge direction of rotation of predetermined magnet 32S (A) is divided into three parts, and inCentre part is formed heteropole magnetic part 34.

V phase sensor SV and W phase sensor SW are at rotor axis direction (in Fig. 4 (a)Vertical direction) on be arranged on identical position, and U phase sensor SU is in rotation directionBe arranged on the position that is different from V phase sensor SV and W phase sensor SW. In this configuration, UPhase sensor SU is positioned on the swing-around trajectory 34a of heteropole magnetic part 34, V phase sensor SVSW is positioned at beyond swing-around trajectory 34a with W phase sensor.

In the present embodiment, sensor SU is configured to export one in the time that it detects the N utmost point to SWLow signal (binary number " 0 "), and in the time that it detects the S utmost point, export a high signal (binary number " 1 ").Because the quantity of magnet 32S and 32N is 12 (12 utmost points), U phase signals, V phase signals and WPhase signals is converted into low or high (referring to Fig. 5) in the time of the rotation of every 30 degree of rotor 30. Therefore,360 ° of the respective electrical angles of corresponding U, V, W phase and 60 ° of the anglecs of rotation (mechanical angle) of crank axle 14Corresponding. Notice, in the time heteropole magnetic part 34 being detected, U phase signals is converted into low. In addition,When rotor 30 often turns over 10 while spending, at U, V, W phase sensor SU in any in SWThere is low/High variation.

Notice, as shown in Fig. 4 (a), between N utmost point magnet 32N and S utmost point magnet 32S, existIn the situation of nonpolarity member 32a, when because this member 32a and sensor SU are relative and not to SWPolarity chron can be detected, be the previous setting signal between low signal and high signal at the described signal of suppositionFor example, in the situation of (, low signal), process.

Notice, much less, can adopt wherein N utmost point magnet 32N and S utmost point magnet 32S neighbour each otherConnect to make not exist the rotor 30 of above-mentioned member 32a. In addition, can so arrange, lead to makingCross and a magnet block is magnetized to the N utmost point and S extremely forms wherein multiple N utmost point magnet 32N and S utmost point magneticThe rotor that body 32S is formed by a magnet block. Notice, can for example, by using multiple (, fourIndividual) magnet block or can be by form the rotor of this situation by a magnet block.

Fig. 5 be start from top sequentially to demonstrate degree in crank angle, combined information NNUM, U, V,Binary representation, U, V, W phase signals, ignition signal, the injection signal of W phase signals and startingThe timing diagram of machine stroke. Combined information NNUM refers to represent U phase signals, the V phase signals of output simultaneouslyWith virtual (or imagination) signal of the combination of W phase signals, in the present embodiment, its be by U, V,The decimal system numerical value that the combination of the binary expression formula of W phase signals is calculated.

More specifically, converting decimal numeral numerical value to by 3 bits is described combined informationNNUM, wherein utilizes first, utilization of the binary number representation binary expression formula of U phase signalsThe second of the binary number representation binary expression formula of V phase signals, utilize the binary system of W phase signalsNumber represents the 3rd of binary expression formula. Utilize ECU13 to calculate this numerical value of N NUM. For example,As shown in leftmost hurdle, in the time that U, V, W phase signals are respectively " 1 ", " 0 " and " 1 ", NNUMValue is " 5 ".

Reference character ES in accompanying drawing represents to change low signal into by detecting heteropole magnetic part 34Part. This signal section is corresponding to " internal combustion engine control signal ", and letter except reference character ESNumber other parts corresponding to " motor control signal ". Except wherein there is internal combustion engine control signal ESPart outside, NNUM value with 5 → 1 → 3 → 2 → 6 → 4 sequential loop repeat to change.

As represented by reference character ta in the accompanying drawings, when internal combustion engine control signal ES being detectedTime NNUM value be " 0 ", but, except detection time ES At All Other Times, NNUM valueBe not " 0 ". Therefore,, in the time NNUM value being detected for " 0 ", ECU13 is with reference to degree in crank angle meterCalculate the absolute rotational position of crank axle 14. In the time grasping described absolute rotational position, can specify and (sentenceFixed) rising or the decline timing (, NNUM upgrades timing) of U, V, W phase signals accordinglyAnd the position relationship between the once rotation of 4 two-stroke engines (circulation).

For example, can will occur that NNUM value " 1 " appears in NNUM value " 0 " afterwards for the second timeTime time tb be appointed as engine piston and arrived time of bottom dead centre BDC. Notice, canValue by reference to inspiratory pressure sensor 16 is differentiated (stroke judgement) above-mentioned bottom dead centre BDC'sTime is instroke or compression travel. Utilize this configuration, can upgrade timing based on NNUM and carry outControl, with by fuel injection time or be set as the target with respect to absolute rotational position the duration of ignitionTime.

In addition, the NNUM value of ECU13 based on current time place specifies next NNUM value (to refer toDetermine device), and determine U phase coil CU, V phase coil according to the next NNUM value of specifyingThe energising Control the content of CV and W phase coil CW. For example, in the time that current NNUM value is " 3 ",Can next NNUM value be appointed as to " 2 " based on rotating last time. That is to say, on it, be wound withThe tooth portion 41 of U phase coil CU is in shifting to and N from the position (height) relative with S utmost point magnet 32SThe timing of the position (low) that utmost point magnet 32N is relative. Therefore, in to U phase coil CU energisingThe timing that ON/OFF changes.

Like this, ECU13 is based on the NNUM value " 4 " that represents that U phase signals rises whether having been detectedOr NNUM value " 3 " control that represents decline is switched on to U phase coil CU. Similarly, ECU baseControl V phase coil CV and W phase coil CW energising in NNUM value. Notice, for NNUMValue " 0 ", contrary with coil motor driver CU, CV and CW, to be worth " 1 " in U, V, W phaseCoil CU controls to the upper enforcement energising of CW.

In addition, whether the record detection ACG starter 20 of ECU13 based on NNUM value oppositely turnsMoving. For example, in the time that it rotates forward, NNUM value is by as above 5 → 1 → 3 → 2 → 6 → 4Order change. On the other hand, in the time that it rotates backward, NNUM value is by 4 → 6 → 2 → 3 → 1 → 5Order change.

In order to utilize ACG starter 20 to pilot engine, when engine piston is in compression travelWhen position not long ago of TDC starting, because the required driving torque of ACG starter 20 is because of decrementAnd increase, worry that motor starting characteristic reduces. Therefore, may there is the situation that after implementing, pendulum is controlled,Wherein, before engine start, crank axle 14 is reversed to rotate and be set in has good startabilityPiston position. Like this, be reversed in the situation of driving at ACG starter 20, when NNUM valueBe for example 4 o'clock at this moment, next NNUM value is appointed as to 6, and corresponding with described designated valueThe energising timing to CW to U, V, W phase coil CU is controlled on ground.

Fig. 6 shows to utilize the microcomputer 13a (referring to Fig. 1) of ECU13 to implement as above instituteThe U, the V that state, W phase coil CU are to the flow chart of the handling procedure of the energising control of CW. To be scheduled toCycle (for example, calculates by the CPU of above-mentioned microcomputer 13a or by predetermined crank angle degreeThe cycle going out) repeat to implement described processing. Otherwise, in the time that rotation stops, entering with above-mentioned predetermined periodRow is processed, and is detected and processed by each edge as described below in the time rotating. That is to say,Microcomputer 13a shown in Fig. 1 has output of catching from corresponding sensor SU to SW and defeatedEnter the capturing function of the timing of the variation of signal (U shown in Fig. 5, V, W phase signals) wherein.In brief, it detects rising and the decline timing (edge detection timing) of U, V, W phase signals.So, in the time that each edge detects, implement the processing in Fig. 6.

First, at the step S10 place shown in Fig. 6, respectively from U, V, W phase sensor SU toSW obtains U phase signals, V phase signals and W phase signals. At next step S20, (combined information is rawApparatus for converting) locate, calculate the combined information of the combination that represents these signals based on U, V, W phase signalsNNUM. At next step S30 place, based on NNUM value, calculate next NNUM value. MoreParticularly, the above-mentioned rotation 5 → 1 (0) → 3 → 2 → 6 → 4 based in the time rotating forward, currentWhen NNUM value is for example " 5 ", calculate next NNUM value " 1 ". Notice, currentWhen NNUM value is " 0 ", calculate next NNUM value " 3 ".

At next step S40 place, based on the next NNUM value calculating at step S30 place, realExecute the energising control to CW to U, V, W phase coil CU. By this processing, ACG starter20 implement motor with the direction of rotation of being scheduled to drives.

For example,, about the energising control to U phase coil CU, when next NNUM value is " 2 "Or when " 5 ", its value that means the U phase signals that forms next NNUM value is current from formingThe value of the U phase signals of NNUM value changes. Therefore, when next NNUM value is designated asWhen " 2 " or " 5 ", the energising Control the content of U phase coil CU is closed or become from closing from opening to becomeOpen.

Similarly, about the energising control to V phase coil CV and W phase coil CW, work as the next oneWhen NNUM value is designated as " 3 " or " 4 ", the energising Control the content of V phase coil CV is changedBecome, and in the time that next NNUM value is designated as " 6 " or " 1 ", to W phase coil CWEnergising Control the content be changed.

At next step S50 place, determine whether and occur NNUM value " 0 " and whetherCarry out as described above the detection of the absolute rotational position of crank axle 14. In the time having carried out detection(S50: be), processes and proceeds to next step S60, at this step S60 place, based on what detectAbsolute rotational position and U, V, W phase signals (or NNUM value), control injector 10 and pointThe operation of firearm 11, to make fuel injection time and the duration of ignition as the object time. Notice, whenWhile not carrying out the detection of absolute rotational position (S50: no), inoperation injector 10 and igniter 11,And process and enter into holding state.

In the example of Fig. 5, at time ts1 place, the driving of starting point firearm 11, and in the timeTs2 place, implements igniting. In addition, at time tf1 place, utilize injector 10 to start fuel and spray, andAnd in time tf2 place, end injection. Then, with reference to the song in the time there is internal combustion engine control signal ESHandle angle (absolute rotational position), there is internal combustion engine control signal ES in suction stroke after, withThe 4th rising timing (or timing appears in the 4th NNUM value " 5 ") of U phase signals is as time ts1,And using the 5th fall time (or timing appears in the 5th NNUM value " 1 ") of W phase signals asTime ts2, implements IGNITION CONTROL.

In addition, after having there is internal combustion engine control signal ES in stroke in outburst, with V phase signalsThe 3rd decline timing (or timing appears in the 3rd NNUM value " 4 ") is as time tf1, and with VThe 5th rising timing (or timing appears in the 5th NNUM value " 3 ") of phase signals is as time tf2,Implement fuel injection control.

Notice, as mentioned above, based on the detected value of inspiratory pressure sensor 16, judge bottom dead centreWhether the time of BDC is in instroke or compression travel. In the time not implementing stroke judgement, also existTs1 ' locates drive point firearm 11 and injector 10 to ts2 ' and tf1 ' to tf2 '. In addition, at the example of Fig. 5In, each IGNITION CONTROL time ts1, ts2 and injection control time tf1, tf2 and U, V, W believeNumber rising or decline timing consistent. In the time that itself and these timing is inconsistent, can be from the object timeU, V not long ago, the rising of W phase signals or decline timing are through the time point place after the scheduled timeImplement IGNITION CONTROL or spray and control.

According to the present embodiment described above in detail, obtain following effect.

(1) because U phase sensor SU is arranged on the swing-around trajectory 34a of heteropole magnetic part 34,Can utilize the U phase sensor SU output internal combustion engine control signal ES of output motor control signal, andAnd the required crank axle 14 of the engine control of grasping for example fuel injection control and IGNITION CONTROL definitelyPosition of rotation. Therefore, can remove the sensor special (song for exporting internal combustion engine control signal ESHandle rotational position sensor) and reduce the quantity of sensor.

(2) can not only debate low signal and the horse of other internal combustion engine control signal ES according to the height of U phase signalsReach the low signal of control signal. Particularly, when wherein not obtaining the ACG starter of U phase signals record20 when stop or when the driving of ACG starter 20 starts, and can not specify the low state of U phase signalsWhether caused by internal combustion engine control signal ES. On the other hand, in the present embodiment, due to U phase signals,The combined information NNUM of V phase signals and W phase signals is calculated, and even ought stop ACG starter20 o'clock, based on NNUM value, in the time that NNUM value is " 0 ", appointment U phase signals nowLow state is caused by internal combustion engine control signal ES. Therefore, engine control can promptly be grasped requiredAbsolute rotational position.

Particularly, in the vehicle with idling-stop control system, in the time of engine automatic restart,Because promptly grasp as mentioned above absolute rotational position, can promptly start injector 10 and ignitingThe driving of device 11, and be therefore preferred.

(3) the upper end edge direction of rotation of predetermined magnet 32S (A) is divided into three parts, and inIn the part of centre, form heteropole magnetic part 34. Therefore, be formed on the tradition in whole direction of rotation with itStructure is compared, and can reduce predetermined magnet 32S (A) and heteropole magnetic part 34 on above-below directionBetween the length of magnet short-cut path. Therefore, can utilize ACG starter 20 to suppress motor driving forceReduce and utilize ACG starter 20 to suppress the minimizing of generated energy.

(4) in addition, because being formed on above-mentioned three, heteropole magnetic part 34 divides the middle body of partIn, the edge 32b of predetermined magnet 32S (A) can be used as S utmost point magnet 32S but not heteropole magnet portionDivide 34 edge. Therefore, can detect contiguous predetermined magnet 32S (A) location in abutting connection with magnet 32N(B) edge 32c (C) is transformed into the predetermined magnet 32S (A) with U phase sensor SUConversion timing when edge 32b (referring to Fig. 5). Therefore, can control accurately to U phase coilThe timing of the energising control of CU.

(5) utmost point between heteropole magnetic part 34 and the tooth portion 41 relative with predetermined magnet 32S (A)Property mismatch is inevitable. But, according to the present embodiment, because heteropole magnetic part 34 is formed onAbove-mentioned three divide part middle body in, with the upper end of predetermined magnet 32S (A) in whole rotationSituation about being formed in direction in heteropole magnetic part 34 is compared, and can reduce different in direction of rotationThe length of utmost point magnetic part 34. Therefore,, with respect to predetermined magnet 32S (A), can reduce heteropole magneticProperty part 34 area occupied, and suppress the defeated of the ACG starter 20 that causes according to polarity mismatchGo out to reduce.

(6) in addition, because being formed on above-mentioned three, divides in parts heteropole magnetic part 34, and can be byThe height transformation timing of internal combustion engine control signal ES is set as the height with V phase signals and W phase signalsChange timing identical. Therefore, can avoid the complexity of combined information NNUM.

(7) notice, exist so and worry, due to the internal combustion engine control letter from U phase sensor SUThe output of number ES, the Control the content of the energising control to U phase coil CU and actual electrical angle mismatching,And ACG starter 20 rotates backward. On the other hand, in the present embodiment, because from ACGThe motor of starter 20 drives the transmission of torque while beginning to be blocked, until rotational speed N E become equal orHigher than predetermined value, can solve above-mentioned worry.

Rotor 30 and the crank axle 14 of ACG starter 20 are fixed, to make at pivot each otherRotation integratedly under consistent state, and there is not for example skin between rotor 30 and crank axle 14The Poewr transmission mechanism of band or gear. Therefore, when passing on from one to another from the U being arranged on ACG starter 20When sensor SU output crank position signalling, can avoid being caused by the backlash of gear or the expansion of beltSkew between the rotatable phase of the rotatable phase of crank axle 14 and rotor 30. Therefore, by utilizing UPhase sensor SU calculates the absolute rotational position of crank axle 14, can guarantee enough computational accuracies.

(8) be arranged so that in the time internal combustion engine control signal ES being detected except ES detection time withThe outer NNUM value " 0 " that there will not be At All Other Times. Therefore, due to the NNUM based on current time placeValue detects absolute rotational position, can be in the case of rapid without waiting for the record that accumulates NNUM valueAbsolute rotational position is grasped on ground.

Notice, owing to exporting internal combustion engine control signal ES from U phase sensor SU, in some situationUnder, can not specify next U phase sensor signal from the U phase sensor signal of current time. SoAnd, even, under this situation, can pass through in some cases the NNUM value based on current time placeSpecify next NNUM value to specify next U phase sensor signal. In the basis with this viewpoint structureIn embodiment, because the next NNUM value of specifying according to the NNUM value based on current time placeDetermine the energising Control the content to U phase coil CU, can reduce and wherein can not specify next U phaseThe situation of sensor signal and definite energising Control the content.

(10) rising of the crank position signal shown in Figure 16 or decline cycle are that crank axle 14 turns overThe time of the occupied anglec of rotation (30 °) of magnet 32S, a 32N. On the other hand, due to NNUMUpdate cycle is the combination of corresponding U, V, W phase signals, and it turns over above-mentioned rotation for crank axle 141/3 the rotation time at angle (30 °). That is to say, the NNUM update cycle is than the crank position in Figure 16The cycle of putting signal is short. Therefore, implement with the crank position signal based on shown in Figure 16 the feelings of controllingCondition is compared, and according to the rising based on corresponding U, V, W phase signals or decline timing, (NNUM moreWhen the first month of the lunar year) control the present embodiment of fuel injection time and the duration of ignition, for control basic timeBetween be 1/3 (10 °/30 °), and can control accurately fuel injection time and the duration of ignition.

(the second embodiment)

In above-mentioned the first embodiment, at three U, V, W phase sensor SU in SW, only UPhase sensor SU is arranged on the swing-around trajectory 34a of heteropole magnetic part 34. On the other hand, at thisIn embodiment, U phase sensor SU and V phase sensor SV are arranged on swing-around trajectory 34a. ResultThat identical with the situation of U phase signals, V phase signals comprises internal combustion engine control signal ES (referring to Fig. 7).

Notice, in above-mentioned the first embodiment, in the time that NNUM value is " 0 ", specify from U phaseSensor output internal combustion engine control signal ES. But, in the current embodiment shown in Fig. 7, whenWhen NNUM value is " 0 ", owing to can not determine that internal combustion engine control signal ES is from U phase sensor SUOr V phase sensor SV output, existence can not calculate the worry of absolute rotational position.

Therefore, in the present embodiment, the recorded information of the record based on expression combined information NNUM,Specify the sensor of output internal combustion engine control signal ES, and calculate absolute rotational position. Notice,Recorded information in the present embodiment refers to two continuous NNUM values, but three or more continuouslyNNUM value can be recorded information.

More specifically, in the situation that NNUM value is " 0 ", when previous NNUM value is " 5 "Time, be assigned therein as from the internal combustion engine control signal ES of U phase sensor SU output. When previousWhen NNUM value is " 3 ", be assigned therein as from the internal combustion engine control signal of V phase sensor SV outputES. Notice, in the counter-rotational situation of ACG starter 20, when previous NNUM value isWhen " 3 ", be assigned therein as from the internal combustion engine control signal ES of U phase sensor SU output, andIn the time that previous NNUM is worth as " 6 ", be assigned therein as in V phase sensor SV outputCombustion machine control signal. Then, the appearance of the result based on these appointments and internal combustion engine control signal ES justTime, calculate absolute rotational position.

In addition, determine sensor signal is that the detection of high or low and above-mentioned edge can be combined, inCalculate absolute rotational position. More specifically, when edge detection time of internal combustion engine control signal ES (referring toReference character tu in Fig. 7) and edge detection time of W phase signals (referring to the reference word in Fig. 7Symbol tw) roughly the same and judge that any in described signal changed into when low, by its appointmentFor the internal combustion engine control signal ES from U phase sensor SU output.

Similarly, when edge detection time of internal combustion engine control signal ES is (referring to the reference word in Fig. 7Symbol tv) and the edge detection time (referring to the reference character tc in Fig. 7) of U phase signals roughly the sameAnd judge that any in described signal changed into when low, is assigned therein as from V phase sensorThe internal combustion engine control signal ES of SV place output.

Then, will the energising control to CW to U, V, W phase coil CU be described. On passing throughAfter the method for stating calculates absolute rotational position, suppose by internal combustion engine control signal ES and be converted toThe NNUM value of " 5 → 0 → 3 → 0 → 6 " has been converted into as shown in the bracket of Fig. 7" 5 → 1 → 3 → 2 → 6 ", and to U, V, W phase coil CU to the CW control of switching on,Coil CU, the CV of tooth portion 41 is consistent with polarity phase place with CW, thereby can rotation drive motor.

On the other hand, while stopping before calculating absolute rotational position, in the time that NNUM value is " 0 ",Next NNUM value can not be appointed as to " 3 " or " 6 ". Therefore, in the present embodiment, supposeArbitrary value (for example, " 3 ") in " 3 " or " 6 " is next NNUM value and to phase coilCU is to the CW control of switching on. So, even when ACG starter after the process scheduled time20 do not start to rotate and NNUM value while not changing, suppose that next NNUM value is not that this is anyValue " 3 " but another value " 6 ", and U, V, W phase coil CU are carried out to channel electric controlled to CWSystem.

As described in detail above, according to the present embodiment, can obtain and above-mentioned the first embodimentSimilarly effect, and can obtain following effect. That is to say, in the first embodiment, work as songArbor 14 turns over one while turning, and internal combustion engine control signal ES occurs once, and according to the present embodiment, itsOccur twice. Therefore, because crank axle 14 after starting at ACG starter 20 to drive completes one and turnsThere is internal combustion engine control signal ES before, can reduce for calculating based on internal combustion engine control signal ESThe time that absolute rotational position is required. Therefore, can promptly start injector 10 and igniter 11Driving. In addition, utilize this configuration, because the stage produces the driving torque of utilizing engine in early daysAnd reduce required motor driving torque, can reduce the size of ACG starter 20.

In addition, in the present embodiment, owing to arranging on the swing-around trajectory 34a at heteropole magnetic part 34Multiple sensors, in the time internal combustion engine control signal ES being detected, can not specify from being wherein output asThe sensor of the internal combustion engine control signal of the combination of NNUM value " 0 ". On the other hand, at the present embodimentIn, above-mentioned appointment implemented in the record based on NNUM value. In addition, can be based on determine sensor signalIt is high or low and the above-mentioned appointment of edge detection enforcement. Therefore, can grasp absolute rotational position.

In addition in the present embodiment, drive for the rotation of the calculating not completing absolute rotational position,Energising control (motor drives and controls) in during moving, because conduct is experimental field with next NNUMThe candidate value " 3 " of value and " 6 " are sequentially implemented energising and are controlled, even can be at above-mentioned rotary actuationImplement during this time motor and drive control.

(the 3rd embodiment)

In above-mentioned the second embodiment, at three U, V, W phase sensor SU in SW, U phaseSensor SU and V phase sensor SV are arranged on the swing-around trajectory 34a of heteropole magnetic part 34.On the other hand, in the present embodiment, all three U, V, W phase sensor SU all arrange to SWOn swing-around trajectory 34a. Result is that identical with the situation of U phase signals and V phase signals, W believesNumber comprise internal combustion engine control signal ES (referring to Fig. 8).

So, in the present embodiment shown in Fig. 8, as the situation of above-mentioned the second embodiment, whenWhen NNUM value is " 0 ", U, V, W phase sensing specified in the record based on combined information NNUMDevice SU in SW from wherein exporting the sensor of internal combustion engine control signal ES. In addition, as above-mentionedThe situation of the second embodiment can be that high or low and edge detects and implements based on determine sensor signalState appointment. Then,, based on the result of specifying, calculate absolute rotational position.

More specifically, in the situation that NNUM value is " 0 ", when previous NNUM value is " 5 "Time, be assigned therein as from the internal combustion engine control signal ES of U phase sensor SU output. When previousWhen NNUM value is " 3 ", be assigned therein as the output from V phase sensor SV, and when previouslyNNUM value while being " 6 ", be assigned therein as the output from W phase sensor SW. Notice,In the counter-rotational situation of ACG starter 20, in the time that previous NNUM value is " 3 ", willIt is appointed as the internal combustion engine control signal ES from U phase sensor SU output, and when above-mentioned value be " 6 "Time, be assigned therein as the signal from V phase sensor SV, in addition, in the time that above-mentioned value is " 5 ",Be assigned therein as from the signal of W phase sensor SW output. Then, the result based on these appointments andThe appearance timing of internal combustion engine control signal ES, calculates absolute rotational position.

Next, will the energising control to CW to U, V, W phase coil CU be described. Passing throughAfter said method calculates absolute rotational position, suppose by internal combustion engine control signal ES and change intoThe NNUM value of " 5 → 0 → 3 → 0 → 6 → 0 → 5 → 1 " is the NNUM value relative with tooth portion coil,That is, as shown in the bracket of Fig. 8, change the value of " 5 → 1 → 3 → 2 → 6 → 4 → 5 → 1 " into, andAnd to U, V, W phase coil CU to the CW control of switching on.

On the other hand, while stopping before calculating absolute rotational position, NNUM value is " 0 " thereinSituation under, next NNUM value can not be appointed as to " 3 ", " 6 " or " 5 ". Therefore, at thisIn embodiment, suppose that the arbitrary value (for example, " 3 ") in " 3 ", " 6 " and " 5 " is next NNUMValue, and to U, V, W phase coil CU to the CW control of switching on. Then, when even at warpCross after the scheduled time when ACG starter 20 does not start to rotate and NNUM value does not change, supposeNext NNUM value is not described arbitrary value " 3 " but another value " 6 " or " 5 ". Then, vacationArbitrary value (for example, " 6 ") in fixed " 6 " or " 5 " is next NNUM value, and carries outEnergising is controlled. Result is that ACG starter 20 does not start to turn after even passing through the scheduled timeWhen moving and NNUM value does not change, suppose next NNUM value be not described arbitrary value " 6 " andRemaining value " 5 ", and to U, V, W phase coil CU to the CW control of switching on. NoteArrive, in the time that actual NNUM value becomes from " 0 " value that is different from predicted value, based on described realityNNUM value implement drive.

According to the present embodiment described above in detail, when crank axle 14 turns over one while turning, internal combustion engine controlSignal ES occurs three times. Therefore,, compared with above-mentioned the second embodiment, can further reduce from ACGStarter 20 starts to be driven into and occurs the required time of internal combustion engine control signal ES. Therefore, can subtractFew based on the internal combustion engine control signal calculating required time of absolute rotational position, and can promote to sprayDevice 10 and igniter 11 start rapidly to drive.

(the 4th embodiment)

In above-mentioned the 3rd embodiment, three U, V, W phase sensor SU sequentially arrange to SWIn adjacent segment 41a among the gap 41a of multiple tooth portion 41. On the other hand, at the present embodimentIn, as shown in Figure 9, three U, V, W phase sensor SU are not arranged on adjacent segment to SWIn 41a, but arrange dispersedly. In the example of Fig. 9, these phase sensors arrange dispersedly, withMake angle and V phase sensor SV and W between U phase sensor SU and V phase sensor SVAngle between phase sensor SW is 140 °.

Therefore, in above-mentioned the 3rd embodiment, the every appearance of internal combustion engine control signal ES once, crank axle14 rotate 20 °, and in the present embodiment shown in Figure 10, the every appearance of internal combustion engine control signal ESOnce, crank axle 14 rotates 140 °.

Notice, in the present embodiment shown in Figure 10, as the situation of above-mentioned the 3rd embodiment,In the time that NNUM value is " 0 ", the record based on combined information NNUM specifies U, V, W to pass on from one to anotherSensor SU in SW from wherein exporting a phase sensor of internal combustion engine control signal ES. Then,Based on the result of specifying, calculate absolute rotational position.

Next, will the energising control to CW to U, V, W phase coil CU be described. Passing throughAfter said method calculates absolute rotational position, suppose by internal combustion engine control signal ES and change into" 5 → 0 → 3 ", " 3 → 0 → 6 " and the NNUM value of " 6 → 0 → 5 " change the bracket as Figure 10 intoShown in " 5 → 1 → 3 ", " 3 → 2 → 6 " and " 6 → 4 → 5 ", and implement to U, V, W phaseCoil CU is to the energising control of CW.

On the other hand, before calculating absolute rotational position, in the time that NNUM value is " 0 ", noNext NNUM value can be appointed as to " 3 ", " 6 " or " 5 ". Therefore, in the present embodiment, asWith the situation of above-mentioned the 3rd embodiment, suppose the arbitrary value (for example, " 3 ") in " 3 ", " 6 " or " 5 "For next NNUM value and enforcement energising control. When NNUM value after the process scheduled timeWhen change and ACG starter 20 do not start to rotate, suppose in other value " 6 " and " 5 "Arbitrary value (for example, " 6 ") is next NNUM value, and implements energising and control. Should when utilizingConfiguration is not while starting to rotate, supposes that next NNUM value is not described arbitrary value " 6 " but remainderValue " 5 ", and implement the energising control to CW to U, V, W phase coil CU.

According to the present embodiment described above in detail, because three U, V, W phase sensor SU arriveSW arranges dispersedly, can reduce to occur the time interval of internal combustion engine control signal ES. Therefore, withAbove-mentioned the 3rd embodiment compares, and can further reduce from ACG starter 20 and start to be driven into appearanceThe time that internal combustion engine control signal ES is required. Therefore, can reduce based on internal combustion engine control signal ESCalculate the required time of absolute rotational position, and can promote injector 10 and igniter 11 rapidStart to drive.

Notice, U, V, W phase sensor SU are set to heteropole magnetic to two in SWIn situation on the swing-around trajectory 34a of part 34, can apply " decentralized configuration " according to predetermined embodiment,To reduce for calculating the required time of absolute rotational position.

(the 5th embodiment)

In above-mentioned each embodiment, when heteropole magnetic part 34 is formed on predetermined magnet 32S (A)Upper end time, described upper end edge direction of rotation is divided into three parts, and middle body is formed asHeteropole magnetic part 34. On the other hand, in the present embodiment, saved described upper end has been divided into threePart. As shown in the dashed area in Figure 11, the whole upper end of predetermined magnet 32S (A) formsFor heteropole magnetic part 34.

In addition, in above-mentioned each embodiment, saved for exporting the special of internal combustion engine control signal ES,With sensor (crank rotational position sensor). On the other hand, in the present embodiment, in Figure 11Shown in, in having left crank rotational position sensor SE, U phase sensor SU is arranged onOn the swing-around trajectory 34a of heteropole magnetic part 34. That is to say two sensors, i.e. crank rotationPosition sensor SE and U phase sensor SU, be all arranged on the swing-around trajectory of heteropole magnetic part 34On 34a. Therefore, as shown in Figure 5, from U phase sensor SU output internal combustion engine control signal ES,And export the internal combustion engine control as shown in the top signal Figure 16 from crank rotational position sensor SESignal processed.

Then, except three U, V, W phase sensor SU are to SW, by revolving in conjunction with crankThe signal that turns position sensor SE produces combined information NNUM. Calculate and definitely revolve based on NNUM valueTransposition is put, and implements the energising control to CW to U, V, W phase coil CU.

As mentioned above, according to the present embodiment, with three portions that are wherein divided as shown in Fig. 4 (a)The middle body dividing is formed as the situation of heteropole magnetic part 34 and compares, due to heteropole magnetic part 34In whole direction of rotation, be formed at predetermined magnet 32S (A) upper, can simplify predetermined magnet 32S (A)The magnetization of middle heteropole magnetic part 34.

In addition, compared with the situation of crank rotational position sensor SE is wherein only set, due at heteropoleCrank rotational position sensor SE and U phase sensor are set on the swing-around trajectory 34a of magnetic part 34Two sensors of SU, can reduce to start to be driven into from ACG starter 20 and occur internal combustion engine control letterNumber required time of ES. Therefore, can reduce based on internal combustion engine control signal ES and calculate definitely rotationThe time that position is required, and can promote that injector 10 and igniter 11 start rapidly to drive.

(the 6th embodiment)

Exist the rotation stop position of crank axle 14 in the time of engine stop to be arranged in the predetermined of compression travelThe high likelihood of (for example,, from the about BTDC150 ° of scope to top dead-centre TDC) in scope. ThisBe because, exist in the up-stroke of piston of compression travel piston in the little NE time stopping not long agoSentence the high likelihood that compression load stops. Therefore, conventionally can wait grasp to stop estimating position by maintenancePut.

Notice, crank axle 14 is stopping, under the state that estimating position stops the rotation, working as heteropole thereinMagnetic part 34 in phase sensor (the U phase sensor SU in the example of Fig. 5 and the reality of Fig. 7U phase sensor SU in example or V phase sensor SV) relative position or from described relative positionSlightly delay position time, export internal combustion during not grasping therein the rotary actuation of absolute rotational positionMachine control signal. In this case, probably can not be with suitable energising control Content Implementation motor controlSystem.

Therefore, stop under the state that stops estimating position at it, when heteropole magnetic part 34 in fromWhen the position relative with phase sensor shifts to an earlier date slightly the position, can reduce utilize as above suitableThe impossibility of the motor control of energising Control the content.

On the other hand, under crank axle 14 is stopping state that estimating position stopping the rotation, when phase is setSensor with heteropole magnetic part 34 to make heteropole magnetic part 34 in relative with phase sensorPosition or in the time delaying the position of scheduled volume from the position relative with phase sensor, opens at engineAfter beginning to rotate, export immediately internal combustion engine control signal. Therefore, can be fast based on internal combustion engine control signalCalculate absolute rotational position fastly, and promote to grasp required time of described absolute rotational positionReduce.

(the 7th embodiment)

Replace the heteropole magnetic part 34 shown in Fig. 4 by utilizing nonmagnetic portion (space 34k)The present embodiment shown in Figure 12 and Figure 13 is carried out to modification. That is to say, at predetermined magnet 32S(A), in, cutting is geomagnetic into the part of heteropole magnetic part 34, to form space 34k. NoteArrive, Figure 13 is the magnetic showing in the interior perimeter surface that is arranged on adjacent to each other housing 31 (referring to Fig. 1)The perspective view of body 32N and 32S. As shown in Figure 13, space 34k has revolving through rotor 30Turn the shape that diametric(al) is shaped.

As shown in Figure 12, U phase sensor SU is positioned on the swing-around trajectory 34a of space 34k,And V phase sensor SV and W phase sensor SW are positioned at beyond swing-around trajectory 34a. Therefore,From U, V, W phase signals, internal combustion engine control signal ES and the combined information of respective sensor outputNNUM is identical with the content in Fig. 5.

Notice, form therein in the present embodiment of space 34k, at three sensor SU to SWIn, described three sensor SU can be arranged on swing-around trajectory 34a to two in SW. ExampleAs, the in the situation that of U phase sensor SU and V phase sensor SV, internal combustion engine control signal ES andCombined information NNUM is identical with the content in Fig. 7. In addition, in the present embodiment, can be by allThree U, V, W phase sensor SU are arranged on swing-around trajectory 34a to SW. In this case,Internal combustion engine control signal ES is identical with the content in Fig. 8 with combined information NNUM. In addition, at thisIn embodiment, when three U, V, W phase sensor SU are to SW as shown in Figure 9 when scattering device,Internal combustion engine control signal ES is identical with the content in Figure 10 with combined information NNUM.

As mentioned above, form therein in the present embodiment of space 34k, due to internal combustion engine control signalES is identical with the information in the various embodiments described above with combined information NNUM, obtains and above-mentioned each enforcementExample is effect similarly. In addition, by replacing heteropole magnetic part with nonmagnetic portion (space 34k)34, also obtain the effect that magnet short-cut path amount as described below reduces.

Figure 14 (a) shows according to the sketch of the rotor 30 of the first embodiment and stator 40. Heteropole magneticProperty part 34 is formed in predetermined magnet 32S (A). On the other hand, Figure 14 (b) shows basisThe rotor 30 of the present embodiment and the sketch of stator 40. Space 34k is formed on predetermined magnet 32S (A)In. In described figure (a) and (b) any, from the tooth relative with predetermined magnet 32S (A)Portion 41 occurs being connected in abutting connection with magnet 32N (B) and magnetic line of force J1 (C), and described magnetic forceLine J1 causes motor driving force or electric power. Notice, in housing 31, with S utmost point magnet 32S phaseRight part has the polarity of the N utmost point, and the part relative with N utmost point magnet 32N has the utmost point of the S utmost pointProperty.

But, in the case of the Figure 14 (a) with heteropole magnetic part 34, except this magnetic line of forceBeyond J1, there is being connected to through tooth portion 41 from heteropole magnetic part 34 magnetic force of magnet 32S (A)Line J2, thus magnet short-cut path caused. On the other hand, removed therein Figure 14 of heteropole magnetic part 34(b) in situation, although occurred being connected to magnet 32S (A) from housing 31 through tooth portion 41Magnetic line of force J3, thereby caused magnet short-cut path, the short circuit paths of magnetic line of force J3 is shorter than magnetic line of force J2'sRoad path length. Therefore, reduced magnet short-cut path amount, and can reduce owing to forming heteropole part 34 HesThe motor driving force that 34k causes and the decline of electric power.

(the 8th embodiment)

As shown in Figure 17, predetermined magnet 32S (Figure 17 among multiple magnet 32S and 32NExample in S utmost point magnet 32S) a part in form heteropole magnetic part 34 as described below.That is to say, only the dashed area shown in Figure 17 is geomagnetic into the utmost point different from S utmost point magnet 32SProperty (the N utmost point). Heteropole magnetic part 34 is along the direction (vertical direction in Figure 17) of rotor axisBe formed on the end of predetermined magnet 32S and be formed and make in whole direction of rotation (in Figure 17Horizontal direction) upper existence.

V phase sensor SV and W phase sensor SW are rotor axis direction (erecting in Figure 17Nogata to) on be arranged on identical position, and U phase sensor SU arranges in rotation directionIn the position that is different from V phase sensor SV and W phase sensor SW. In this configuration, U passes on from one to anotherSensor SU is positioned on the swing-around trajectory 34a of heteropole magnetic part 34, and V phase sensor SVBe positioned at the position beyond swing-around trajectory 34a with W phase sensor SW.

In the present embodiment, it is so set, so that proper sensor SU detects N to SWWhen the utmost point, output low signal (binary number " 0 "), and in the time the S utmost point being detected, export high signal (twoSystem number " 1 "). Because the quantity of magnet 32S and 32N is 12 (12 utmost points), corresponding U believesNumber, V phase signals and W phase signals rotor 30 often turn over 30 be converted into while spending low or high (referring toFigure 18). Therefore, 360 ° of electrical angles of corresponding U, V, W phase are corresponding to 60 ° of crank axle 14The anglec of rotation (mechanical angle). Notice, in the time heteropole magnetic part 34 being detected, U phase signals also turnsBecome low. In addition,, when rotor 30 often turns over 10 while spending, U, V, W phase sensor SU are to SWIn any change into low or high.

As shown in Figure 17, between N utmost point magnet 32N and S utmost point magnet 32S, exist and do not have thereinIn the situation of the member 32a of polarity, when at described member 32a with sensor SU to the relative feelings of SWUnder condition, polarity chron can not be detected, be one predetermined in low signal and high signal at the described signal of suppositionFor example, in the situation of (, low signal), implement to process.

Notice, much less, can adopt wherein N utmost point magnet 32N and S utmost point magnet 32S neighbour each otherConnect to make not have between them the rotor 30 of above-mentioned member 32a. In addition, can adopt wherein and lead toCross by a magnet block be magnetized to the N utmost point and the S utmost point by a magnet block form multiple N utmost point magnet 32N andThe rotor of S utmost point magnet 32S. Notice, in the rotor of this situation, can use multiple (for example,Four) magnet block or can use a magnet block.

Figure 18 sequentially demonstrates degree in crank angle, combined information NNUM, U, V, W from topBinary expression formula, U, V, W phase signals, ignition signal, the injection signal of phase signals and startingThe timing diagram of machine stroke. Combined information NNUM refers to represent U phase signals, the V phase signals of output simultaneouslyWith the virtual signal of the combination of W phase signals, and in the present embodiment, it is by U, V, W phaseThe decimal system numerical value that the combination of the binary expression formula of signal is calculated.

Reference character ES in accompanying drawing represents by detecting that heteropole magnetic part 34 changes low signal intoPart. This part signal is corresponding to " internal combustion engine control signal ", and except reference mark ESThe other parts of signal are corresponding to " motor control signal ". Except wherein there is internal combustion engine control signal ESPart outside, NNUM value repeatedly changes by 5 → 1 → 3 → 2 → 6 → 4 order. Notice,When contrary with the present embodiment, while not forming heteropole magnetic part 34, the described part of reference character ES becomesFor the high signal being represented by dotted lines in accompanying drawing.

As represented with reference character ta, tb and tc in the accompanying drawings, when internal combustion engine control being detectedWhen signal ES, NNUM value becomes " 4 " → " 0 " → " 2 ". But, except ES detection timeOutside At All Other Times, NNUM value does not become " 0 ". Therefore, have when detecting with reference character tbClose NNUM value " 0 " time, ECU13 is according to the absolute rotation of degree in crank angle calculating crank axle 14Position. As long as can grasp absolute rotational position, just can specify corresponding U, V, W phase signalsRise or decline timing (, NNUM upgrade timing) and 4 two-stroke engines 1 turn over 1 turn betweenPosition relationship.

For example, can will occur that NNUM value " 1 " appears in NNUM value " 0 " afterwards for the second timeTime time td be appointed as engine piston and arrived time of bottom dead centre BDC. Notice, canValue by reference to inspiratory pressure sensor 16 is differentiated (stroke judgement) above-mentioned bottom dead centre BDC timeIn instroke or expansion stroke. Utilize this configuration, can will fire with reference to absolute rotational positionControl material injecting time and the duration of ignition object time for upgrade timing based on NNUM.

Notice, NNUM value is in the situation of " 4 " therein, when previous NNUM value is " 4 "Time, be assigned therein as the value of the engine control signal as represented by reference character ta. On the other hand,In the time that previous NNUM value is " 6 ", be assigned therein as the motor control being represented by reference character tf1The value of signal. Notice, therein in the counter-rotational situation of ACG starter 20, when previousWhen NNUM value is " 0 ", be assigned therein as the value of engine control signal ES, and be " 5 " when itTime, be assigned therein as the value of motor control signal. Then, the result based on these appointments and engineAbsolute rotational position is calculated in the appearance timing of control signal ES.

In addition, the NNUM value of ECU13 based on current time place specifies next NNUM value (to refer toDetermine device), and determine U phase coil CU, V phase coil based on the next NNUM value of specifyingThe energising Control the content of CV and W phase coil CW. For example, be " 3 " in current NNUM valueTime, can the rotation based on previous next NNUM value be appointed as to " 2 ". That is to say, on itBe wound with the tooth portion 41 of U phase coil CU in moving from the position (height) relative with S utmost point magnet 32STo the timing of the position (low) relative with N utmost point magnet 32N. Therefore, it is in to U phase coilThe timing that the ON/OFF of CU energising changes.

Like this, ECU13 is based on the NNUM value " 4 " that represents that U phase signals rises whether having been detectedOr NNUM value " 3 " control that represents decline is switched on to U phase coil CU. Similarly, ECU baseControl V phase coil CV and W phase coil CW energising in NNUM value. Notice, for NNUMValue " 0 ", contrary with coil motor driver CU, CV and CW, to be worth " 1 " in U, V, W phaseCoil CU controls to the upper enforcement energising of CW. In addition, for the NNUM being represented by reference character taValue " 4 ", supposes that it is " 5 ", and for the NNUM value " 2 " being represented by reference character tc, vacationFixed its be " 3 ", and enforcement energising control to CW to U, V, W phase coil CU.

In addition, whether the record detection ACG starter 20 of ECU13 based on NNUM value oppositely turnsMoving. For example, in the time that it rotates forward, NNUM value is by order 5 → 1 → 3 → 2 → 6 → 4 as aboveChange. On the other hand, in the time that it rotates backward, NNUM value is pressed 4 → 6 → 2 → 3 → 1 → 5 orderChange.

In order to utilize ACG starter 20 to pilot engine, when engine piston is in compression travelDuring from the starting of position not long ago of TDC, because the required driving torque of ACG starter 20 is because of compressionMeasure and increase, worrying that the starting performance of engine is lowered. Therefore, implement in some cases rear pendulumControl,, before engine start, crank axle 14 rotated backward, and be set in have goodThe piston position of startability. Like this, in the situation that ACG starter 20 is reversed driving, work as NNUMValue is for example 4 o'clock at this moment, and next NNUM value is appointed as to 6, and with described designated value oneCause and control the energising timing to CW to U, V, W phase coil CU.

In the present embodiment, in the step S10 of Fig. 6, based in the time rotating forward as5 (4) → 1 (0) → 3 (2) → 2 → 6 → 4 above-mentioned rotation calculates in the time that current NNUM value is " 5 "Previous NNUM value is " 1 ". Notice, in the time that current NNUM value is " 0 ", calculate downA NNUM value is " 3 ". In addition, when previous NNUM value is " 4 " and current NNUMWhen value is " 4 ", next NNUM value is " 1 ". In addition, when previous NNUM value is " 0 "And current NNUM value calculates next NNUM value for " 2 " while being " 2 ".

According to above-described embodiment, can obtain the first embodiment effect (1), (2), (7), (8),And (10) (9).

(the 9th embodiment)

In above-mentioned the first embodiment, at three U, V, W phase sensor SU in SW, only UPhase sensor SU is arranged on the swing-around trajectory 34a of heteropole magnetic part 34. On the other hand, at thisIn embodiment, U phase sensor SU and V phase sensor SV are arranged on swing-around trajectory 34a. ResultThat, as the situation of U phase signals, V phase signals also comprises internal combustion engine control signal ES (referring to Figure 19).

Notice, in above-mentioned the 8th embodiment, in the time that NNUM value is " 0 ", specify from U phaseSensor SU output internal combustion engine control signal ES. But, in the current embodiment shown in Figure 19,In the time that NNUM value is " 0 " (referring to reference character tf, tg and th), owing to can not specifying internal combustion engineControl signal ES is from U phase sensor SU or from V phase sensor SV output, existence can not calculateThe worry of absolute rotational position.

More specifically, in the situation that NNUM value is " 0 ", when above-mentioned NNUM value is " 6 → 4 → 4 "Time, be assigned therein as from the internal combustion engine control signal ES of U phase sensor SU output. Notice,Wherein in the counter-rotational situation of ACG starter 20, when above-mentioned NNUM value is " 5 → 4 → 4 "Time, be assigned therein as from the internal combustion engine control signal ES of V phase sensor SV output. Then, based onThe appearance timing of the result of these appointments and internal combustion engine control signal ES, calculates absolute rotational position.

Next, will the energising control to CW to U, V, W phase coil CU be described. Passing throughAfter said method calculates absolute rotational position, suppose because internal combustion engine control signal ES changes intoThe NNUM value of " 4 → 0 → 0 → 0 → 4 " becomes " 5 → 1 → 3 → 2 → 6 ", and implement to U, V,W phase coil CU is to the energising control of CW. Therefore, the coil CU of magnetic pole phase and tooth portion 41,CV and CW match, and can rotation drive motor.

On the other hand, while stopping before calculating absolute rotational position, when NNUM value is " 0 "Time, NNUM value " 0 " can not be appointed as to the value corresponding to " tf ", " tg " or " th ". Therefore,In the present embodiment, next NNUM value can not be appointed as " 3 ", " 2 " controlled for switching on or" 6 ". Therefore, in the present embodiment, suppose that arbitrary value in " 3 ", " 2 " and " 6 " (for example," 3 ") be next NNUM value, and U, V, W phase coil CU are switched on to CWControl.

Then, when even do not start through ACG starter 20 after the scheduled time rotation andWhen NNUM value does not change, suppose that next NNUM value is not arbitrary value " 3 " but other value " 2 "Or " 6 ". Then, suppose that the arbitrary value (for example, " 2 ") in " 2 " or " 6 " is next NNUMValue, and the control of switching on.

Result is, when even do not start through ACG starter 20 after the scheduled time rotation andWhen NNUM value does not change, suppose that next NNUM value is not arbitrary value " 2 " but remaining value" 6 ", and to U, V, W phase coil CU to the CW control of switching on. Notice, work as realityWhen NNUM value becomes from " 0 " value that is different from predicted value, implement according to described actual NNUM valueDrive.

But, as test, by 3 → 2 → 6 order with all candidate values " 3 ", " 2 " and " 6 "Carry out control period, rotor 30 rotates and travel(l)ing phase slightly in some cases. For example,, at certainIn a little situations, suppose that it is in tf, although it is in fact in tg, and implement energising according to " 3 "Control, result is that it is turned to the phase place of th. In this case, because can not normally implement horseReach driving, then suppose that its next time is in tg, and implement energising according to " 2 " and control. So, willIt turns to tg phase place. In this case, drive owing to can not normally implementing motor, so suppose itNext in th, and implement energising according to " 6 " and control. Therefore, in the time there is phase shift with which,Even, in the time implementing energising control with all candidate values " 3 ", " 2 " and " 6 ", can not normally implement horseReach driving.

In the present embodiment of constructing according to this point, even when pressing all multiple candidate values " 3 ", " 2 "" 6 " are implemented energising and are controlled still can not normally implement motor and drive time, by being different from said sequenceSequentially (for example, 2 → 3 → 6 order) implements energising control. Utilize this configuration, due to as testThe order having provided there is no above-mentioned phase shift is implemented the chance of controlling, and can normally implement motor and drive.Notice, in the time that actual NNUM value becomes from " 0 " value that is different from predicted value, according to described realityBorder NNUM value is implemented to drive.

According to the present embodiment as described in detail above, can obtain with above-mentioned the 8th embodiment similarEffect, and can obtain following effect. That is to say, in above-mentioned the 8th embodiment, at crankAxle 14 turns over internal combustion engine control signal ES between a refunding and occurs once, occurs according to the present embodimentTwice. Therefore, due to start from ACG starter 20 drive with after crank shaft 14 complete one turn beforeThere is internal combustion engine control signal ES, can reduce for calculating definitely based on internal combustion engine control signal ESThe time that position of rotation is required. Therefore, can promptly start driving of injector 10 and igniter 11Moving. In addition, utilize this configuration, due to utilize the driving torque of engine occur in commitment andRequired motor driving torque can be reduced, the size of ACG starter 20 can be reduced.

In addition, in the present embodiment, owing to arranging on the swing-around trajectory 34a at heteropole magnetic part 34Multiple sensors, in the time detecting internal combustion engine control signal ES, can not specify from being wherein output asThe sensor of the combination internal combustion engine control signal ES of NNUM value " 0 ". About this problem, in this realityExecute in example, above-mentioned appointment implemented in the record based on NNUM value. Therefore, can grasp absolute rotation positionPut.

In addition, in the present embodiment, for the rotary actuation phase that does not complete absolute rotational position calculatingBetween energising control (motor drive control), due to the candidate with next NNUM value as testValue " 3 ", " 2 " and " 6 " are sequentially implemented energising and are controlled, can be even during above-mentioned rotary actuationImplement motor and drive control. In addition, although control still not when having implemented energising with all candidate valuesCan normally implement motor driving time, again implement energising by the order that is different from first front sequence and control. CauseThis, CD-ROM drive motor infallibly.

(the tenth embodiment)

In above-mentioned the 9th embodiment, at three U, V, W phase sensor SU among SW, UPhase sensor SU and V phase sensor SV are arranged on the swing-around trajectory 34a of heteropole magnetic part 34.On the other hand, in the present embodiment, all three U, V, W phase sensor SU all arrange to SWOn swing-around trajectory 34a. Result is, as the situation of U phase signals and V phase signals, W phase signalsComprise internal combustion engine control signal ES (referring to Figure 20).

In the present embodiment shown in Figure 20, except wherein there is the part of internal combustion engine control signal ESOutside, NNUM value by 5 → 1 → 3 → 2 → 6 → 4 sequential loop repeat to change. On the other hand,Occur therein NNUM value in the part of internal combustion engine control signal ES by as arrive with reference character tj4 (5) → 0 (1) → 0 (3) → 0 (2) → 0 (6) → 0 (4) → 1 (5) the order that tp represents changes (in bracketWherein there is not the NNUM value of signal ES and be motor drive signal numeral in numeral).

Therefore, while stopping before calculating absolute rotational position, in the time that NNUM value is " 0 ",Can not designated reference character tk, tl, tm, tn or which is corresponding to " 0 ". Therefore, can not supposeNext NNUM value is that " 3 ", " 2 ", " 6 ", " 4 " or " 5 " are to implement energising control.

Therefore, in the present embodiment, as the situation of above-mentioned the second embodiment, suppose that " 3 " arrive " 5 "In arbitrary value (for example, " 3 ") be next NNUM value, and implement to U, V, W phaseCoil CU is to the energising control of CW. Then, sequentially changing described arbitrary value (example as testAs, 3 → 2 → 6 → 4 → 5) situation under implement control, until normally implement motor drive. Then,Although normally do not implement yet motor when having implemented energising control with all candidate values " 3 " to " 5 "When driving, for example, implement energising by the order (, 2 → 3 → 5 → 4 → 6) that is different from said sequence and control.Notice, in the time that actual NNUM value becomes from " 0 " value that is different from predicted value, again based on instituteStating actual NNUM value implements to drive.

Next, the energising control to CW to UWV (U, V, W) phase coil CU will be described.After detecting absolute rotational position by said method, suppose by internal combustion engine control signal ES and changeFor the NNUM value of " 4 → 0 → 0 → 0 → 0 → 0 → 1 " is the NNUM value contrary with tooth portion coil,That is, it becomes " 5 → 1 → 3 → 2 → 6 → 4 → 5 ", and implements U, V, W phase coil CU to arriveThe energising control of CW.

According to the present embodiment described above in detail, when crank axle 14 turns over one while turning, internal combustion engine controlSignal ES occurs three times. Therefore,, compared with above-mentioned the 9th embodiment, can further reduce from ACGStarter 20 starts to be driven into and occurs the required time of internal combustion engine control signal ES. Therefore, can subtractFew based on the internal combustion engine control signal calculating required time of absolute rotational position, and can promote to sprayDevice 10 and igniter 11 start rapidly to drive.

(the 11 embodiment)

In above-mentioned the tenth embodiment, three U, V, W phase sensor SU sequentially arrange to SWIn adjacent segment 41a among the gap 41a of multiple tooth portion 41. On the other hand, at the present embodimentIn, as shown in Figure 9, replace three U, V, W phase sensor SU to SW at adjacent segmentAbove-mentioned configuration in 41a, they arrange dispersedly. In the example of Fig. 9, its scattering device, so thatObtain angle and V phase sensor SV and W phase between U phase sensor SU and V phase sensor SVAngle between sensor SW is 140 °.

Therefore, in above-mentioned the tenth embodiment, the every appearance of internal combustion engine control signal ES once, crank axle14 rotate 20 °, and in the present embodiment shown in Figure 21, the every appearance of internal combustion engine control signal ESOnce, crank axle 14 rotates 140 °.

In the present embodiment shown in Figure 21, except wherein there is the part of internal combustion engine control signal ESOutside, NNUM value by 5 → 1 → 3 → 2 → 6 → 4 sequential loop repeat to change. On the other hand,NNUM in the part of internal combustion engine control signal ES that occurs therein being produced by U phase sensor SUValue by as 4 (5) → 0 (1) → 2 (3) the order variation that represented to tc by reference character ta (in bracketWherein there is not the NNUM value of signal ES in numeral). In addition produced by V phase sensor SV,Part in value change by 1 (3) → 0 (2) → 4 (6) the order being represented to ts by reference character tq,And the value in the part being produced by W phase sensor SW is by being represented to tv by reference character tt2 (6) → 0 (4) → 1 (1) order changes.

Therefore, while stopping before calculating absolute rotational position, in the time that NNUM value is " 0 "," 3 ", " 6 " or " 5 " can not be appointed as to next NNUM value and implement energising control. Therefore,As the situation at above-mentioned the 9th embodiment, arrive any of " 5 " as test sequence change " 3 "In the situation of value, implement to control, until motor is by driven. Then, although when with all timesChoosing value " 3 " to " 5 " has been implemented energising and has been controlled while normally not implementing yet motor driving, again by differentImplementing energising in the order of said sequence controls.

In addition, the in the situation that NNUM value being " 1 " in the time stopping therein, can not be by " 3 ", " 1 "Or " 2 " be appointed as next NNUM value implement energising control. Therefore, as test sequenceGround changes " 3 " and arrive in the situation of arbitrary value of " 5 " and implement control, until motor is by driven.Then, although control normal unreal yet when having implemented energising with all candidate values " 3 " to " 2 "While executing motor driving, again implement energising by the order that is different from first front sequence and control.

Similarly, in the time that NNUM value is " 1 " in the time stopping, can not be by " 6 ", " 2 " or " 4 "Be appointed as next NNUM value and implement energising control. Therefore, in the feelings that sequentially change described valueUnder condition, implement to control, until motor is by driven, and in addition, implement control by different orders.In addition, in the time that NNUM value is " 4 " in the time stopping, " 5 ", " 1 " or " 4 " can not being appointed as,Next NNUM value is implemented energising and is controlled. Therefore, real in the situation that sequentially changing described valueExecute control, until motor is by driven, and in addition, implement to control by different orders.

Next, will the energising control to CW to U, V, W phase coil CU be described. Passing throughAfter said method calculates absolute rotational position, suppose by internal combustion engine control signal ES and change intoThe NNUM value of " 4 → 0 → 2 ", " 1 → 0 → 4 " and " 2 → 0 → 1 " becomes " 5 → 1 → 3 ", " 3 → 2 → 6 "" 6 → 4 → 1 ", and will implement the energising control to CW to U, V, W phase coil CU.

According to the present embodiment described above in detail, due to all three U, V, W phase sensor SUArrange to SW Monodispersed ground, can reduce the time interval between the appearance of internal combustion engine control signal ES.Therefore,, compared with above-mentioned the tenth embodiment, can further reduce from ACG starter 20 and start to driveMove and occur the required time of internal combustion engine control signal ES. Therefore, can reduce based on internal combustion engine controlSignal ES calculates the required time of absolute rotational position, and can promote injector 10 and igniter11 start rapidly to drive.

Notice, U, V, W phase sensor SU are arranged on heteropole to two in SW thereinIn situation on the swing-around trajectory 34a of magnetic part 34, can apply " disperseing according to the present embodimentArrange ", to reduce for calculating the required time of absolute rotational position.

(the 12 embodiment)

Figure 22 has shown the structure of the present embodiment.

As shown in Fig. 2 and 23, stator 40 has U phase coil CU as above, V phase coilCV and W phase coil CW, U, V, W phase sensor SU are to SW, crank rpsDevice SE and iron core 42, iron core 42 places are formed with by the tooth portion 41 of these coil windings. In rotation sideMultiple tooth portion 41 is upwards set, and U phase coil CU, V phase coil CV and W phase coil CWSequentially be wound around corresponding tooth portion 41. In the example of Figure 23, arrange 18 tooth portions 41.

U, V, W phase sensor SU to SW and crank rotational position sensor SE with the N utmost pointMagnet 32N is attached on the outer surface of stator 40 with the relative position of S utmost point magnet 32S. Join at thisIn putting, detect the magnetic being caused according to the rotation of rotor 30 by N utmost point magnet 32N and S utmost point magnet 32SProperty changes. Notice, as U, V, W phase sensor SU to SW and crank rpsDevice SE is the same, adopts hole IC. Therefore,, even in the time that rotor 30 does not rotate, can export with relativeThe detection signal corresponding to polarity of magnet.

U, V, W phase sensor SU are to SW and crank rotational position sensor SE along rotorDirection of rotation is attached at respectively diverse location. More specifically, they are arranged on the gap of multiple tooth portion 41In different gap 41a among 41a. In the example of Figure 24, crank rotational position sensor SE,U phase sensor SU, V phase sensor SV and W phase sensor SW are sequentially arranged on described multipleIn the adjacent segment of gap 41a. Therefore, corresponding U, V, W phase sensor SU to SW andThe mechanical angle of crank rotational position sensor SE skew 20 degree.

As shown in Figure 24, predetermined magnet 32S (Figure 24 among multiple magnet 32S and 32NExample in S utmost point magnet 32S) a part in form heteropole magnetic part 34 as described below.That is to say, only the dashed area shown in Figure 24 is geomagnetic into the utmost point different from S utmost point magnet 32SProperty (the N utmost point). Heteropole magnetic part 34 is along the direction (vertical direction in Figure 24) of rotor axisBe formed on the end of predetermined magnet 32S and be present in whole direction of rotation (the level side in Figure 24To) on.

Crank rotational position sensor SE and U phase sensor SU are arranged on heteropole magnetic part 34On swing-around trajectory 34a. On the other hand, V phase sensor SV and W phase sensor SW are arranged on and revolveBeyond transition road 34a.

In the present embodiment, U, V, W sensor SU are to SW and crank rotational position sensorSE is configured to export low signal (binary number " 0 ") in the time that it detects the N utmost point, and when its detectionDuring to the S utmost point, export high signal (binary number " 1 "). Because the quantity of magnet 32S and 32N is 12(12 utmost point), degree in crank angle signal, U phase signals, V phase signals and W phase signals often turn at rotor 30Cross 30 and be converted into low or high (referring to Figure 25) while spending. Therefore, the phase of corresponding U, V, W phaseAnswer 360 ° of electrical angles corresponding with 60 ° of the anglecs of rotation (mechanical angle) of crank axle 14. Notice, work as detectionDuring to heteropole magnetic part 34, degree in crank angle signal and U phase signals are converted into low. In addition rotor,30 often turn over 10 degree, at U, V, W phase sensor SU to SW and crank rpsIn any in device SE, there is high/low transformation.

Notice, as shown in Figure 24, between N utmost point magnet 32N and S utmost point magnet 32S, existDo not have in the situation of member 32a of polarity, when due to member 32a and U, V, W phase sensor SURelatively polarity chron can not be detected to SW and crank rotational position sensor SE, suppose described letterNumber be the previous setting signal (for example, low signal) in low signal and high signal, and process.

Notice, much less, can adopt wherein N utmost point magnet 32N and S utmost point magnet 32S neighbour each otherNear to make not exist the rotor 30 of above-mentioned member 32a. In addition, can so arrange, lead to makingCross and a magnet block is magnetized to the N utmost point and S extremely forms wherein multiple N utmost point magnet 32N and S utmost point magneticThe rotor that body 32S is formed by a magnet block. Notice, can for example, by using multiple (, fourIndividual) magnet block or can be by form the rotor of this situation by a magnet block.

Figure 25 sequentially shows degree in crank angle, combined information NNUM, degree in crank angle signal from topAnd U, V, the binary expression formula of W phase signals, the crankangle of crank rotational position sensor SEThe timing diagram of degree signal, U, V, W phase signals, ignition signal, injection signal and engine stroke.Combined information NNUM refer to represent output simultaneously degree in crank angle signal, U phase signals, V phase signals andThe virtual signal of the combination of W phase signals, and in the present embodiment, it is by conjunction with degree in crank angleThe decimal system numerical value that the binary expression formula of signal and U, V, W phase signals calculates.

More specifically, the decimal numeral numerical value being converted to by 4 bits is described combined informationNNUM, wherein by first of the binary number representation binary expression formula of degree in crank angle signal, byThe second of the binary number representation binary expression formula of U phase signals, by the binary number of V phase signalsRepresent the 3rd of binary expression formula, by the binary number representation binary expression formula of W phase signalsThe 4th. Utilize ECU13 to calculate this numerical value of N NUM. For example, as shown in leftmost hurdle,In the time that U, V, W phase signals are respectively " 1 ", " 1 ", " 0 " and " 1 ", the value of NNUM is " 11 ".

Reference character ES in accompanying drawing represents to change into by heteropole magnetic part 34 being detected low signalPart. This part signal is corresponding to " internal combustion engine control signal ", and except reference character ESThe other parts of U phase signals corresponding to " motor control signal ". Except wherein there is internal combustion engine controlOutside the part of signal ES, NNUM value repeatedly changes by 11 → 2 → 6 → 4 → 13 → 9 order.Notice, when contrary with the present embodiment, while not forming heteropole magnetic part 34, reference character ES's shouldPart becomes the high signal being represented by dotted lines in accompanying drawing.

As represented with reference character a, b and c in the accompanying drawings, when internal combustion engine control letter being detectedWhen number ES, NNUM value becomes " 12 " → " 8 " → " 10 ". But, except ES detection timeOutside At All Other Times, NNUM value does not become " 8 ". In addition, as in the accompanying drawings with reference character j,K and l represent like that, in the time internal combustion engine control signal ES being detected NNUM value become " 5 " →" 1 " → " 3 ". But, except ES detection time At All Other Times, NNUM value is constantFor " 1 ". In addition, in the time ES being detected, only there are " 12 ", " 10 " relevant with c to reference character aDeng.

Therefore, when detect the NNUM value " 8 " relevant to reference character b, with reference character k, aWhen the NNUM value " 1 " relevant with c, " 12 ", " 10 " etc., ECU13 calculates according to degree in crank angleThe absolute rotational position of crank axle 14. As long as can grasp absolute rotational position, just can specify correspondingThe rising of sensor output signal or decline timing (, NNUM upgrades timing) send out with 4 strokesPosition relationship between 1 of motivation 1 turns. That is to say the NNUM value meter based on current time placeCalculate absolute rotational position.

For example, can will occur that NNUM value " 2 " appears in NNUM value " 8 " afterwards for the second timeTime time g be appointed as engine piston and arrived time of bottom dead centre BDC. Notice, canBy reference to the value of inspiratory pressure sensor 16 differentiate (stroke judgement) above-mentioned bottom dead centre BDC timeBetween whether in instroke or compression travel. Utilize this configuration, can incite somebody to action according to absolute rotational positionControl fuel injection time and the duration of ignition object time for upgrade timing based on NNUM.

Notice, NNUM value is in the situation of " 0 " therein, when previous NNUM value is " 9 "Time, be assigned therein as the value of the engine control signal ES being represented by reference character e. On the other hand,In the time that previous NNUM value is " 2 ", be assigned therein as the engine control being represented by reference character hThe value of signal ES processed. Notice, therein in the counter-rotational situation of ACG starter 20, in the banWhen front NNUM value is " 4 ", be assigned therein as the value of the signal ES relevant to reference character e,And in the time that described value is " 6 ", be assigned therein as the value of the signal ES relevant to reference character h. SoAfter, absolute rotation is calculated in the appearance timing of the result based on these appointments and engine control signal ESPosition. That is to say, the record based on NNUM value calculates absolute rotational position.

In addition, the NNUM value of ECU13 based on current time place specifies next NNUM value (to refer toDetermine device), and next NNUM value based on specified, determine U phase coil CU, VThe energising Control the content of phase coil CV and W phase coil CW. For example,, in current NNUM valueDuring for " 6 ", can the rotation based on previous next NNUM value be appointed as to " 4 ". NamelySay, be wound with the tooth portion 41 of U phase coil CU in the position (height) from relative with S utmost point magnet 32SShift to the timing of the position (low) relative with N utmost point magnet 32N. Therefore, it is in to U phase coilThe timing that the ON/OFF of CU energising changes.

Like this, ECU13 is based on the NNUM value " 9 " that represents that U phase signals rises whether having been detectedOr the NNUM value " 6 " that represents decline is controlled U phase coil CU is switched on. Similarly, ECUControl V phase coil CV and W phase coil CW energising according to NNUM value.

Notice, about the NNUM value " 12 " relevant with c to reference character a, b, " 8 " and " 10 ",In the situation that these values of supposition are " 13 ", " 9 " and " 11 ", implement U, V, W phase coilCU is to the energising control of CW. Therefore, coil CU, CV and the CW of magnetic pole phase and tooth portion 41Correspondence, and can rotation drive motor. Similarly, about relevant with reference character d, e and fNNUM value " 9 ", " 0 " and " 4 ", the situation that is " 11 ", " 2 " and " 6 " in these values of suppositionLower enforcement energising is controlled; About the NNUM value " 2 " relevant with i with reference character g, h, " 0 " and" 9 " are implemented energising and are controlled in the situation that these values of supposition are " 6 ", " 4 " and " 13 "; And,About the NNUM value " 5 " relevant with l with reference character j, k, " 1 " and " 3 ", supposing theseValue is controlled for implementing energising in the situation of " 13 ", " 9 " and " 11 ".

On the other hand, while stopping before calculating absolute rotational position, when NNUM value is for exampleWhen " 0 ", next NNUM value can not be appointed as to " 4 " or " 9 ". Therefore, at the present embodimentIn, suppose that next NNUM value for example, for the arbitrary value (, " 4 ") in " 4 " and " 9 ", andImplement the energising control to CW to U, V, W phase coil CU. Then, when passing through the scheduled timeACG starter 20 does not start to rotate and NNUM value while not changing afterwards, supposes the next oneNNUM value is not above-mentioned arbitrary value " 4 " but another value " 9 ", and to U, V, W phase coilCU is to the CW control of switching on. Notice, when actual NNUM value becomes and is different from advance from " 0 "When the value of evaluation, implement to drive based on described actual NNUM value.

In addition, whether the record detection ACG starter 20 of ECU13 based on NNUM value oppositely turnsMoving. For example, in the time that it rotates forward, NNUM value is by as above 11 → 2 → 6 → 4 → 13 → 9Order change. On the other hand, in the time that it rotates backward, NNUM value is by 9 → 13 → 4 → 6 → 2 → 11Order change.

In order to utilize ACG starter 20 to pilot engine, when engine piston is in compression travelDuring from the starting of position not long ago of TDC, because the required driving torque of ACG starter 20 is because of compressionMeasure and increase, worrying that the starting performance of engine is lowered. Therefore, implement in some cases rear pendulumControl, wherein, before engine start, make crank axle 14 rotate backward and be set in and have wellThe piston position of startability. Like this, in the situation that ACG starter 20 is reversed driving, work as NNUMValue is for example 9 o'clock at this moment, and next NNUM value is appointed as to 13, and with described designated value oneCause and control the energising timing to CW to U, V, W phase coil CU.

Fig. 6 shows to utilize the microcomputer 13a (referring to Figure 22) of ECU13 to as aboveU, V, W phase coil CU implement the flow chart of the processing procedure of energising control to CW. To be scheduled to weekPhase (for example, calculates by the CPU of above-mentioned microcomputer 13a or by predetermined degree in crank angleThe cycle going out) repeat to implement described processing. Otherwise, in the time that rotation stops, entering with above-mentioned predetermined periodRow is processed, and is detected and processed by each edge as described below in the time rotating. That is to say,Microcomputer 13a shown in Figure 22 have the output of catching from corresponding sensor SU to SW andThe transformation timing of signal (U shown in Figure 25, V, W phase signals) wherein of input catch meritEnergy. In brief, it detects rising and the decline timing (edge detection timing) of U, V, W phase signals.Then while detection at each edge, implement the processing in Fig. 6.

First, at the step S10 place shown in Fig. 6, in the present embodiment, from U, V, W phaseSensor SU obtains corresponding degree in crank angle signal, U phase signals, V phase signals and W to SW placePhase signals. Locate at next step S20 (combined information generating apparatus), according to degree in crank angle signal and U,V, W phase signals are calculated the combined information NNUM of the combination that represents described signal. At next step S30Place, calculates next NNUM value based on NNUM value.

More specifically, based on the above-mentioned rotation as 11 → 2 → 6 → 4 → 13 → 9 in the time rotating forward,In the time that current NNUM value is for example " 11 ", calculate next NNUM value for " 2 ". NoteArrive, the value in current NNUM value for utilizing the NNUM value at current time place to specify, that is, and with upperWhile stating " 8 ", " 1 " that reference character b, k, a and c are relevant, " 12 " or " 10 ", calculate nextIndividual NNUM value is " 11 ", " 11 ", " 9 " or " 2 ".

At next step S40 place, based on the next NNUM value calculating at step S30 place, realExecute the energising control to CW to U, V, W phase coil CU. Utilize this processing, ACG starter20 implement motor by predetermined direction of rotation drives.

For example,, about the energising control to U phase coil CU, when next NNUM value is " 11 "Or when " 4 ", the value that forms the U phase signals of next NNUM value refers to from forming current NNUM valueThe variation of value of U phase signals. Therefore, when next NNUM value is designated as " 11 " or " 4 "Time, the energising Control the content of U phase coil CU is closed or become out from closing from opening to become.

Similarly, about the energising control to V phase coil CV and W phase coil CW, work as the next oneWhen NNUM value is designated as " 9 " or " 2 ", the energising Control the content of V phase coil CV is changedBecome, and in the time that next NNUM value is designated as " 13 " or " 2 ", to W phase coil CWEnergising Control the content be changed.

At next step S50 place, whether it determine whether and occur NNUM value " 8 " andThrough having carried out as mentioned above the detection of absolute rotational position of crank axle 14. In the time having carried out detection(S50: be), processes and proceeds to next step S60, at this step S60 place, based on what detectAbsolute rotational position and U, V, W phase signals (or NNUM value), control injector 10 HesThe operation of igniter 11, to make fuel injection time and the duration of ignition as the object time. Notice,In the time not carrying out the detection of absolute rotational position (S50: no), inoperation injector 10 and igniter11, and processing enters holding state.

In the example of Figure 25, at time ts1 place, the driving of starting point firearm 11, and in the timeTs2 place, implements igniting. In addition, at time tf1 place, utilize injector 10 to start fuel and spray, andAnd in time tf2 place, end injection. Then, with reference to occurring that internal combustion engine control signal ES (definitelyPosition of rotation) time degree in crank angle, there is internal combustion engine control signal ES in suction stroke after, withThe 5th rising timing (or timing appears in the 5th NNUM value " 11 ") of U phase signals is as the timeTs1, and with the 6th decline timing (or timing appears in the 6th NNUM value " 2 ") of W phase signalsAs time ts2, implement IGNITION CONTROL.

In addition, after there is internal combustion engine control signal ES in stroke in outburst, with the of V phase signalsThree decline timings (or timing appears in the 3rd NNUM value " 9 ") are as time tf1, and with VThe 5th rising timing (or timing appears in the 5th NNUM value " 6 ") of phase signals is as time tf2,Implement fuel injection control.

Notice, as mentioned above, based on the detected value of inspiratory pressure sensor 16, judge bottom dead centreWhether the time of BDC is in instroke or compression travel. In the time not implementing stroke judgement, at ts1 ' yetLocate drive point firearm 11 and injector 10 to ts2 ' and tf1 ' to tf2 '. In addition, in the example of Figure 25,Each IGNITION CONTROL time ts1, ts2 and injection control time tf1, tf2 and U, V, W phase signalsRising or decline timing are consistent. In the time that itself and described timing are inconsistent, can from the object time notU, V of a specified duration, the rising of W phase signals or decline timing are real through the time point place after the scheduled timeExecute IGNITION CONTROL or spray and control.

(1) in the conventional method shown in Figure 16, when crank axle 14 turns over a control of internal combustion engine while turningSignal ES processed occurs once, and on the other hand, according to the present embodiment, described signal occurs four times. Therefore,From the driving of ACG starter 20 starts, owing to turning over feelings that turn without wait crank axle 14Under condition, there is internal combustion engine control signal ES, can reduce for calculating based on internal combustion engine control signal ESThe time that absolute rotational position is required. Therefore, can promptly start injector 10 and igniter 11Driving. Utilize this configuration, owing to can reducing required motor driving torque, can reduce ACGThe size of starter 20.

(2) in the present embodiment, many owing to arranging on the swing-around trajectory 34a at heteropole magnetic part 34Individual sensor, in the time internal combustion engine control signal ES being detected, can not specify from being wherein output asThe sensor of the combination internal combustion engine control signal of NNUM value " 0 ". On the other hand, in the present embodiment,Above-mentioned appointment implemented in record based on NNUM value. Therefore, can grasp absolute rotational position.

(3) in the present embodiment, about the rotary actuation phase of calculating not completing absolute rotational positionBetween in energising control (motor drive control), due to the time with next NNUM value as testChoosing value " 3 " and " 13 " are sequentially implemented energising and are controlled, can be even real during above-mentioned rotary actuationExecute motor and drive control.

(4) can not be only according to the height of U, V and W phase signals low at internal combustion engine control signal ESBetween signal and the low signal of motor control signal, differentiate. Particularly, when wherein not yet obtaining UThe ACG starter 20 of the record of phase signals drives while beginning or when ACG starter 20 stops,Can not specify the low state of U phase signals whether to be caused by internal combustion engine control signal ES. On the other hand, existIn the present embodiment, because the combined information NNUM of each signal is calculated, even ought stop ACGWhen starter 20, in the time that NNUM value is " 1 ", specify the low of W phase signals based on NNUM valueState is caused by internal combustion engine control signal ES. Therefore, engine control can promptly be grasped requiredAbsolute rotational position.

Particularly, having in the vehicle of idle stop control system, in the time of engine automatic restart,Owing to having grasped rapidly as mentioned above absolute rotational position, preferably can promptly start injector 10 HesThe driving of igniter 11.

(5) notice, owing to believing to the control of SW output internal combustion engine from U, V, W phase sensor SUNumber ES, in some cases, can not specify from the U of current time, V, W phase sensor signalNext U, V, W phase signals. But, even under this situation, in some cases, Ke YitongCross NNUM value based on current time place specify next NNUM value specify next U, V,W phase sensor signal. According in the present embodiment of this point structure, due to according to when currentNext NNUM value that the NNUM value at quarter place is specified is definite to be arrived U, V, W phase coil CUThe energising Control the content of CW, can reduce the feelings that wherein can not specify next U phase sensor signalCondition and definite energising Control the content.

(6) rotor 30 of ACG starter 20 and crank axle 14 are fixed, to make at pivotRotation integratedly under state consistent with each other, and there is not example between rotor 30 and crank axle 14As the Poewr transmission mechanism of belt or gear. Therefore, when from being arranged on the song ACG starter 20When handle rotational position sensor SE output crank angle signal, can avoid backlash or belt by gearThe expansion rotatable phase of crank axle 14 and the rotatable phase of rotor 30 that cause between skew. CauseThis, for the calculating of the absolute rotational position of crank axle 14, can guarantee enough computational accuracies.

(7) it so arranges, and when internal combustion engine control signal ES detected, is examining except ES so that properThere will not be At All Other Times NNUM value " 8 " beyond the survey time. Therefore, when based on current time placeNNUM value calculate when absolute rotational position, can be at the record without waiting for accumulation NNUM valueIn situation, promptly grasp absolute rotational position.

(8), in the conventional method shown in Figure 16, the rising of degree in crank angle signal or decline cycle areCrank axle 14 turns over the time of the anglec of rotation (30 °) being occupied by magnet 32S, a 32N. The opposing partyFace, due to the combination that the NNUM update cycle is each sensor signal, it turns over for crank axle 141/3 rotation time of the above-mentioned anglec of rotation (30 °). That is to say, the NNUM update cycle is compared Figure 16In cycle of degree in crank angle signal short. Therefore, real with the degree in crank angle signal based on shown in Figure 16Execute the situation of control and compare, according to the rising based on corresponding U, V, W phase signals or decline timing(NNUM upgrades timing) controls fuel injection time and the present embodiment of the duration of ignition, for controllingBasic time be 1/3 (10 °/30 °), and can control accurately fuel injection time and ignitingTime.

(9) forbid crank rotational position sensor SE and U, V, W phase as shown in Figure 23,Sensor SU is arranged in adjacent segment 41a to SW, but it is arranged dispersedly. At Figure 23Example in, its scattering device, to make crank rotational position sensor SE and U phase sensor SUBetween angle, U phase sensor SU and V phase sensor SV between angle and V phase sensingAngle between device SV and W phase sensor SW is 80 °. Therefore, with four sensor SU whereinSequentially be arranged on to SW and SE in the adjacent segment 41a among multiple gap 41a of tooth portion 41Situation compare, can reduce the maximum duration spacing value that occurs internal combustion engine control signal ES. Therefore,Can reduce to start to be driven into from ACG starter 20 by above-mentioned scattering device and occur internal combustion engine controlThe time that signal ES is required. Therefore, can reduce according to internal combustion engine control signal ES and calculate and definitely revolveThe required time is put in transposition, and can promote that injector 10 and igniter 11 start rapidly to drive.

(the 13 embodiment)

Figure 22 has shown the structure of the present embodiment.

As shown in Figure 27 (a), the predetermined magnet 32S (A) among multiple magnet 32S and 32NIn the part of (the S utmost point magnet in the example of Figure 27 (a)), form the heteropole magnetic portion being described belowDivide 34. That is to say, only the dashed area in Figure 27 (a) is geomagnetic into and S utmost point magnet 32SDifferent polarity (the N utmost point). This heteropole magnetic part 34 is along direction (Figure 27 (a) of rotor axisIn vertical direction) be formed on the end of predetermined magnet 32S (A), and so form so thatPolarity that must this predetermined magnet 32S (A) is deposited along direction of rotation (horizontal direction in Figure 27 (a))Be the both sides of heteropole magnetic part 34. That is to say, the upper end edge of predetermined magnet 32S (A) revolvesVeer is divided into three parts, and middle body is formed heteropole magnetic part 34.

U phase sensor SU, V phase sensor SV and W phase sensor SW are along rotor axis sideBe arranged on same position to (vertical direction in Figure 27 (a)), and crank rotational position sensorSE is arranged on and is different from U, V, the W phase sensor SU position to SW along rotation direction.In this configuration, crank rotational position sensor SE is positioned at the swing-around trajectory of heteropole magnetic part 3434a is upper, and U, V, W phase sensor SU are positioned at beyond swing-around trajectory 34a to SW.

In the present embodiment, U, V, W phase sensor SU are to SW and crank rpsDevice SE is configured to export low signal (binary number " 0 ") in the time that it detects the N utmost point, and when its inspectionWhile measuring the S utmost point, export high signal (binary number " 1 "). Because the quantity of magnet 32S and 32N is12 (12 utmost points), degree in crank angle signal, U phase signals, V phase signals and W phase signals are every at rotor 30Turn over 30 and be converted into low or high (referring to Figure 28) while spending. Therefore, corresponding U, V, W phase360 ° of respective electrical angles are corresponding with 60 ° of the anglecs of rotation (mechanical angle) of crank axle 14. Notice, work as inspectionWhile measuring heteropole magnetic part 34, degree in crank angle signal is converted into low. In addition, rotor 30 often turns over10 degree, at U, V, W phase sensor SU in SW and crank rotational position sensor SEIn any, there is high/low transformation.

Notice, as shown in Figure 27 (a), between N utmost point magnet 32N and S utmost point magnet 32SExistence does not have in the situation of member 32a of polarity, when due to this member 32a and U, V, W phase sensingDevice SU can not detect polarity chron relatively to SW and crank rotational position sensor SE, supposesDescribed signal is the previous setting signal (for example, low signal) of low signal and high signal, and locatesReason.

Notice, much less, can adopt wherein N utmost point magnet 32N and S utmost point magnet 32S neighbour each otherNear to make not exist the rotor 30 of above-mentioned member 32a. In addition, can so arrange, lead to makingCross a magnet block is magnetized to the N utmost point and wherein multiple N utmost point magnet 32N and S utmost point magnet of S utmost point formationThe rotor that 32S is formed by a magnet block. Notice, the rotor in this situation can be by utilizing multiple (examplesAs, four) magnet formation.

Figure 28 sequentially shows degree in crank angle, combined information NNUM, degree in crank angle signal from topWith the binary expression formula of U, V, W phase signals, the degree in crank angle of crank rotational position sensor SEThe timing diagram of signal, U, V, W phase signals, ignition signal, injection signal and engine stroke.Combined information NNUM refer to represent output simultaneously degree in crank angle signal, U phase signals, V phase signals andThe virtual signal of the combination of W phase signals, and in the present embodiment, it is by conjunction with degree in crank angleThe decimal system numerical value that the binary expression formula of signal and U, V, W phase signals calculates.

More specifically, converting decimal numeral numerical value to by 4 bits is described combined informationNNUM, wherein utilize first of binary number representation binary expression formula of degree in crank angle signal,Utilize the binary number representation binary expression formula of U phase signals second, utilize two of V phase signalsSystem number represents the 3rd of binary expression formula, utilizes the binary number representation binary system of W phase signalsThe 4th of expression formula. Utilize ECU13 to calculate this numerical value of N NUM. For example,, as leftmost hurdleShown in, when degree in crank angle signal and U, V, W phase signals be respectively " 1 ", " 1 ", " 0 " andWhen " 1 ", NNUM value is " 11 ".

Reference character ES in accompanying drawing represents because detecting that heteropole magnetic part 34 changes low signal intoPart. This signal section is corresponding to " internal combustion engine control signal ", and U, V, W phase signals pairYing Yu " motor control signal ". Except wherein there is the part of internal combustion engine control signal ES,NNUM value repeatedly changes by 11 → 2 → 6 → 4 → 13 → 9 order.

As represented by reference character ta in the accompanying drawings, when internal combustion engine control signal ES being detectedTime NNUM value become " 8 ". But, except ES detection time At All Other Times, NNUMValue is not " 8 ". Therefore, ECU13 is with reference to the degree in crank angle meter in the time NNUM value " 8 " being detectedCalculate the absolute rotational position of crank axle 14. As long as can grasp absolute rotational position, just can specify phaseThe rising of the sensor output signal of answering or decline timing (, NNUM upgrades timing) and 4 strokesPosition relationship between one of engine turns.

For example, can will occur that NNUM value " 2 " appears in NNUM value " 8 " afterwards for the third timeTime time tb be appointed as engine piston and arrived time of bottom dead centre BDC. Notice, canBy reference to the value of inspiratory pressure sensor 16 differentiate (stroke judgement) above-mentioned bottom dead centre BDC timeBetween whether in instroke or compression travel. Utilize this configuration, can incite somebody to action with reference to absolute rotational positionControl fuel injection time and the duration of ignition object time for upgrade timing based on NNUM.

In addition, the NNUM value of ECU13 based on current time place specifies next NNUM value (to refer toDetermine method), and determine U phase coil CU, V phase coil based on the next NNUM value of specifyingThe energising Control the content of CV and W phase coil CW. For example, in current NNUM value be " 6 o'clock,Can the rotation based on previous next NNUM value be appointed as to " 4 ". That is to say, be wound with UThe tooth portion 41 of phase coil CU is in shifting to the utmost point with N from the position (height) relative with S utmost point magnet 32SThe timing of the position (low) that magnet 32N is relative. Therefore, it is in to U phase coil CU energisingThe timing that ON/OFF changes.

Like this, ECU13 is based on the NNUM value " 9 " that represents that U phase signals rises whether having been detectedOr NNUM value " 6 " control that represents decline is switched on to U phase coil CU. Similarly, ECU baseControl V phase coil CV and W phase coil CW energising in NNUM value. Notice, for NNUMValue " 8 ", contrary with coil motor driver CU, CV and CW, with " 9 " to U, V, W phase lineCircle CU implements energising control to CW, then coil CU, the CV of the phase place of magnetic pole and tooth portion 41 andCW is consistent, and can rotation drive motor.

In order to utilize ACG starter 20 to pilot engine, when engine piston in compression travel fromWhen position not long ago of TDC starting, because the required driving torque of ACG starter 20 is because of decrementAnd increase, worry that the starting performance of engine reduces. Therefore, after implementing in some cases, pendulum is controlled,Wherein, before engine start, make crank axle 14 rotate backward and be set in and there is good startabilityPiston position. Like this, in the situation that ACG starter 20 is reversed driving, when NNUM valueBe for example 9 o'clock at this moment, next NNUM value is appointed as to 13, and consistent with described designated valueThe energising timing to CW to U, V, W phase coil CU is controlled on ground.

Fig. 6 shows to utilize the microcomputer 13a (referring to Figure 22) of ECU13 to as aboveU, V, W phase coil CU implement the flow chart of the processing procedure of energising control to CW. By predetermined weekPhase (for example, calculates by the CPU of above-mentioned microcomputer 13a or by predetermined degree in crank angleThe cycle going out) repeat to implement described processing. Otherwise, in the time that rotation stops, entering by above-mentioned predetermined periodRow is processed, and is detected and processed by each edge as described below in the time rotating. That is to say,Microcomputer 13a shown in Figure 22 have the output of catching from corresponding sensor SU to SW andThe transformation timing of signal (U shown in Figure 28, V, W phase signals) wherein of input catch meritEnergy. In brief, it detects rising and the decline timing (edge detection timing) of U, V, W phase signals.Then while detection at each edge, implement the processing in Fig. 6.

First, at the step S10 place shown in Fig. 6, in the present embodiment, from U, V, W phaseSensor SU obtains corresponding degree in crank angle signal, U phase signals, V phase signals and W to SW placePhase signals. Locate at next step S20 (combined information generating apparatus), based on degree in crank angle signal andU, V, W phase signals are calculated the combined information NNUM of the combination that represents described signal. At next stepRapid S30 place, according to NNUM value, calculates next NNUM value. More specifically, based on toAbove-mentioned rotation 11 → 2 → 6 → 4 → 13 → 9 (8) when front rotation is for example " 11 " in current NNUM valueTime, calculate next NNUM value for " 2 ". Notice, in the time that current NNUM value is " 8 ",Calculate next NNUM value for " 9 ".

For example,, about the energising control to U phase coil CU, when next NNUM value is " 11 "Or when " 4 ", the value finger-type that forms the U phase signals of next NNUM value becomes current NNUM valueThe variation of the value of U phase signals. Therefore, when next NNUM value is designated as " 11 " or " 4 "Time, the energising Control the content of U phase coil CU is closed or become out from closing from opening to become.

Similarly, about the energising control to V phase coil CV and W phase coil CW, work as the next oneWhen NNUM value is designated as " 9 " or " 2 ", the energising Control the content of V phase coil CV is changedBecome, and in the time that next NNUM value is designated as " 13 "or" 2 ", to W phase coil CWEnergising Control the content be changed.

At next step S50 place, whether it determine whether and occur NNUM value " 8 " andThrough having carried out as mentioned above the detection of absolute rotational position of crank axle 14. In the time having carried out detection(S50: be), handling procedure proceeds to next step S60, at this step S60 place, based on detectionThe absolute rotational position arriving and U, V, W phase signals (or NNUM value), control injector 10 HesThe operation of igniter 11, to make fuel injection time and the duration of ignition as the object time. Notice,In the time not carrying out the detection of absolute rotational position (S50: no), inoperation injector 10 and igniter11, and processing enters holding state.

In the example of Figure 28, at time ts1 place, the driving of starting point firearm 11, and in the timeTs2 place, implements igniting. In addition, at time tf1 place, utilize injector 10 to start fuel and spray, andIn time tf2 place, end injection. Then, with reference to occurring that internal combustion engine control signal ES (definitely revolvesTransposition is put) time degree in crank angle, there is internal combustion engine control signal ES in suction stroke after, with UThe 5th rising timing (or timing appears in the 5th NNUM value " 11 ") of phase signals is as time ts1,And the 6th decline timing (or timing appears in the 6th NNUM value " 2 ") with W phase signals is doneFor time ts2, implement IGNITION CONTROL.

Notice, as mentioned above, based on the detected value of inspiratory pressure sensor 16, judge bottom dead centreWhether the time of BDC is in instroke or compression travel. In the time not implementing stroke judgement, also existTs1 ' locates drive point firearm 11 and injector 10 to ts2 ' and tf1 ' to tf2 '. In addition, at the example of Figure 28In, each IGNITION CONTROL time ts1, ts2 and injection control time tf1, tf2 and U, V, W believeNumber rising or decline timing consistent. In the time that itself and described timing are inconsistent, can be from the object timeU, V not long ago, the rising of W phase signals or decline timing are through the time point after the scheduled timePlace implements IGNITION CONTROL or sprays and control.

According to the present embodiment described above in detail, obtained effect (1) in the first embodiment, (5),(6), (8) and (10) and following effect.

(11) rising of degree in crank angle signal in conventional method or the cycle of decline are that crank axle 14 turnsCross the rotation time of the anglec of rotation (30 °) being occupied by magnet 32S, a 32N. On the other hand, byBe the combination of each sensor signal in the NNUM update cycle, it turns over above-mentioned revolving for crank axle 141/3 rotation time of corner (30 °). That is to say, the NNUM update cycle believes than degree in crank angleNumber traditional cycle short. Therefore, with the conventional situation phase of implementing to control according to described degree in crank angle signalRatio, according to the rising based on corresponding U, V, W phase signals or decline timing, (NNUM is the first month of the lunar year moreTime) control fuel injection time and the present embodiment of the duration of ignition, for the basic time of controlling be 1/3(10 °/30 °), and can control accurately fuel injection time and the duration of ignition.

(other embodiment)

The invention is not restricted to the explanation of above-described embodiment, but can change in the following manner and implement.In addition, the feature structure of each embodiment can be combined.

In above-mentioned each embodiment, the present invention is applied to the torque biography with for example centrifugal clutchPass in the vehicle of mechanism. The vehicle that is applied to not having described torque-transmitting mechanisms in the case of it,It can so arrange, to make utilizing disengagement clutch by driver's clutch operatingDevice is blocked to the situation of the power transmission of driving wheel or in the situation that neutral position state being detected and is allowedUtilizing ACG starter 20 to start motor drives.

In above-mentioned each embodiment, adopt its rotor 30 be positioned at stator 40 outer circumferential side outsideThe rotor-type ACG of portion starter 20. Can adopt its rotor 30 to be positioned at the inner circumferential side of stator 40Inner rotator type ACG starter 20.

In above-mentioned each embodiment, adopt its rotor 30 to there are 12 utmost points and stator 40 has 18The 12-18 utmost point ACG starter 20 of the utmost point. But, also can adopt the ACG with other number of poles to riseMoving device 20, for example, 8-12 utmost point starter or 16-24 utmost point starter.

In above-mentioned the first embodiment, the upper end edge direction of rotation of predetermined magnet 32S (A) is divided into threeIndividual part, and middle body is formed as heteropole magnetic part 34. As shown in Fig. 4 (b), canSo arrange, so that the upper end of described predetermined magnet 32S (A) is divided into two portions in direction of rotationPoint, and one of them is formed heteropole magnetic part 34. Notice, when described upper end is divided intoWhen three parts, the rising of other pilot signal of for example V phase and W phase signals or decline timing withRising or the decline timing of internal combustion engine control signal ES are consistent with each other. Therefore, can avoid combination letterThe complexity of breath NNUM. On the other hand, in the time that upper end is divided into two parts as mentioned above, combinationInformation NNUM is complicated, and has increased the treating capacity of calculating absolute rotational position and energising control.On the other hand, in the situation that being divided into two parts, the decline of internal combustion engine control signal ES roughly inAnother V phase and the W centre position between mutually, and the sigtnal interval be 5 ° of mechanical angles. Therefore, with itThe middle sigtnal interval is that the situation that is divided into three parts of 10 ° of mechanical angles is compared, control point accuratelyFire and injection.

In above-mentioned each embodiment, N utmost point heteropole magnetic part 34 is formed in S utmost point magnet 32S,And internal combustion engine control signal ES is set as downside. On the other hand, can so arrange, to make SUtmost point heteropole magnetic part 34 is formed in N utmost point magnet 32N, and internal combustion engine control signal ES setsFor high side. In addition, the in the situation that of N utmost point magnet 32N, output can be set as not being downside output,But high side output.

In above-mentioned each embodiment, for three U, V, W phase coil CU to CW provide three U,V, W phase sensor SU are to SW. On the other hand, can so arrange, with make to remove three U,V, W phase sensor SU are to any or two in SW. In this case, corresponding to removalThe motor control signal of the coil of sensor can be estimated and by the motor control signal of another coilGenerate. For example, in the time removing W phase sensor SW, measure opening time or the pass of V phase signalsClose the time, then by wherein from the edge of V phase signals through time of described Measuring Time orWherein time through the scheduled time from the rising point of the motor control signal of V phase sensor SVBe considered as the motor control signal relevant with W phase coil CW, and implement on W phase coil CWEnergising is controlled.

In above-mentioned each embodiment, rotor 30 is directly connected on crank axle 14, but, rotor30 can be connected on crank axle 14 via the Poewr transmission mechanism of for example belt or gear. Notice,In this case, due to backlash, the expansion of belt etc. of gear the rotatable phase of crank axle 14 with turnBetween the rotatable phase of son 30, there is skew. Therefore, the calculating of the absolute rotational position of crank axle 14Precise decreasing.

In above-mentioned each embodiment, adopt ACG starter 20 (motor generator) conduct according to thisThe electric rotating machine of invention. Can adopt the starter motor that there is no electricity generate function, and can adopt and do not haveThe generator of motor function. Notice, in the time that employing does not have the generator of motor function, due to from respectivelyIndividual sensor SU is not used as motor control signal to the signal of SW output, there is no need sensorSU is arranged on the position beyond swing-around trajectory 34a to SW. In addition,, in the time adopting generator, it is notBe limited to threephase generator. The present invention can be applied to the single-phase magneto with other number of poles, exampleAs, its rotor 30 has 12 utmost points and stator 40 and has the 12-12 utmost point magneto of 12 utmost points,8-8 pole generator or 16-16 pole generator.

In above-mentioned the 7th embodiment shown in Figure 12, in middle body, form free along direction of rotationGap 34k, and predetermined magnet 32S (A) is positioned at the both sides of space 34k. On the other hand, as Figure 15(a) shown in, can so arrange, be formed at end so that obtain space 34k along direction of rotation,And adjacent with space 34k in abutting connection with magnet 32N (B). In addition, as shown in Figure 15 (b), canSo to arrange, form in whole direction of rotation so that obtain space 34k, and in abutting connection with magnet 32N(B) be positioned at the both sides of space 34k.

In above-mentioned each embodiment, utilize multilevel logic table (NNUM value) to detect crank benchmark positionPut. Can so arrange, when making from sensor input time sequentially measuring transducer fabric widthBetween, and obtain the time ratio between them, the then position higher than setting value by wherein said time ratioPut and detect as crank reference position. Can utilize this detection method that this detection method and logical table are carried outCombination.

In above-mentioned the 12 embodiment, crank rotational position sensor SE and U, V, W phase sensingDevice SU to SW by scattering device as described above. Replace this scattering device, can so arrange, withMake crank rotational position sensor SE and U, V, W phase sensor SU be arranged on phase to SWIn adjacent gap 41a. In addition, can be by the sensor of any amount in described four sensors dispersedlyArrange.

In above-mentioned the 12 embodiment, three U, V, W phase sensor SU are arranged on different to SWOn the swing-around trajectory 34a of utmost point magnetic part 34. Can so arrange, to make these U, V, WPhase sensor SU is arranged on swing-around trajectory 34a to one or two in SW. Notice, in these feelingsUnder condition, can so arrange, to make application according to the first embodiment " scattering device ", to reduceCalculate the required time of absolute rotational position.

In above-mentioned each embodiment, based on UWV signal, calculate the combination that represents described signalCombined information NNUM. Then, calculate next NNUM value based on current NNUM value. RemoveOutside this configuration, can implement following processing.

For example, in the variation of the NNUM value shown in Fig. 5, upper in U, V, W phase signalsWhen liter or decline timing (edge detection timing), existing can not be the value of NNUM value. Have moreBody ground, rises just constantly mutually at U, and " 7 " or " 1 " are impossible as NNUM value. Like this,Calculate the number of times that can not occur described NNUM value in normal time. When described number of times is greater than pre-determined numberTime, implement predetermined mistake processing.

Figure 30 shows the flow chart that described combined information NNUM is carried out to the wrong example of processing.When utilization is arranged on microcomputer 13a in ECU13, U phase signals is carried out to edge while detecting,As interrupting processing this series of processes of enforcement.

First,, in the step S110 shown in Figure 30, judge whether it rises as U phase signals. WhenIn this differentiation, be judged to be U phase signals rise (S110: be), in step S120 by U phase signalsValue be set as " 1 ". In next step S130, determine whether and keep V phase signals=" 0 ". WhenIn this differentiation, judge while not keeping V phase signals=" 0 " (S130: no), in step S140Determine whether and keep W phase signals=" 0 ". When judging and do not keep W phase signals=" 0 " in this differentiationWhen (S140: no), in step S150, increase U phase error count U_ERR, and for the time being eventuallyOnly this series of processes. In this case, NNUM value is " 7 ", and it is that U rises in timing situation mutuallyThe value that can not occur normal time. On the other hand, keep W to believe when judging in step S140Number=when " 0 " (S140: be), in step S160, NNUM value is set as to " 3 ", andStop for the time being this series of processes.

In addition, when judge maintenance V phase signals=" 0 " (S130: be) in step S130 time,In step S170, determine whether and keep W phase signals=" 0 ". When not judging and do not keep in this judgement, in step S180, NNUM value is set as to " 5 " when the W phase signals=" 0 " (S170: no),And stop for the time being this series of processes. On the other hand, keep W to believe when judging in step S170Number=when " 0 " (S170: be), in step S190, increase U phase error count U_ERR, andAnd stop for the time being this series of processes. In this case, NNUM value is " 1 ", and it is that U is just rising mutuallyTime situation lower normal time the value that can not occur.

On the other hand, in the time judging that in step S110 it is not U phase signals rising (S110: no),, judge that it is that U phase signals declines, and is set as " 0 " by U phase signals value in step S200.In next step S210, determine whether and keep V phase signals=" 0 ". When judging not in this differentiationWhile keeping V phase signals=" 0 " (SS210: no), in step S220, determine whether and keep WPhase signals=" 0 ". In the time that in this differentiation, judgement does not keep W phase signals=" 0 " (S220: no),In step S230, increase U phase error count U_ERR, and stop for the time being this series of processes. ?In this situation, NNUM value is " 6 ", and it is that decline the mutually situation of timing of U is impossible lower normal timeThe value occurring. On the other hand, when in step S220 judge keep W phase signals=" 0 " (S220:Be) time, in step S240, NNUM value is set as to " 2 ", and stops for the time being this series placeReason.

In addition, when judge maintenance V phase signals=" 0 " (S210: be) in step S210 time,In step S250, determine whether and keep W phase signals=" 0 ". When not judging and do not keep in this differentiation, in step S260, increase U phase error count U_ERR when the W phase signals=" 0 " (S250: no),And stop for the time being this series of processes. In this case, NNUM value is " 4 ", and it is that U declines mutuallyTiming situation lower normal time of the impossible value occurring. On the other hand, when judging and protect in step S250While holding W phase signals=" 0 " (S250: be), in step S270, NNUM value is set as to " 0 ",And stop for the time being this series of processes.

As mentioned above, occur that mistake as one man increases the U error count that is staggered when detecting at U phase signals edgeNumber U_ERR. In erroneous calculations operation or in another program, judge U phase error count U_ERRWhether be greater than pre-determined number. In the time that the number of times of described error count ERR is greater than pre-determined number, implement pre-Fixed mistake processing. Due to mistake processing, for example, may reset combined information NNUM, or strongSystem makes combined information NNUM change predetermined value into. Notice, described U phase signals hereinProcessing when edge detects, but, while detection at the edge of V phase signals or W phase signals, can implementSimilarly process.

Hereinafter, description is utilized internal combustion engine control signal output function as above obtain above-mentionedThe structure of starter motor and operating effect.

The above-mentioned starter motor with internal combustion engine control signal output function is assumed to be and is provided with: by edge rotationDirection alternately arranges the rotor of the magnet formation of opposed polarity; Be wound around by arranging along direction of rotation on itThe stator that has the multiple tooth portion of coil to form; And phase sensor, it is attached in stator and magnet phaseThe crank position signal that right position and output are corresponding with the polarity of rotary magnet.

In addition, in a part for predetermined magnet, form heteropole part, this heteropole part be geomagnetic intoThe polarity that predetermined magnet among described multiple magnet is different or be not geomagnetic into any polarity, andOn the swing-around trajectory of the heteropole part of rotating, phase sensor is set together with rotor. When the inspection of phase sensorWhile measuring heteropole magnetic part, the output of phase sensor represents the absolute rotational position of the output shaft of internal combustion engineInternal combustion engine control signal.

Alternatively, described starter motor is to play the electric rotating machine of starter motor effect, wherein passes on from one to anotherThe motor control signal that sensor output is corresponding with the polarity of rotary magnet, and it is by based on detectingMotor control signal control the timing of coil electricity is rotated to driving, thereby rotarily actuate internal combustionThe output shaft of machine. In the time that phase sensor detects heteropole part, substitute motor control signal, it can be defeatedGo out the reference position signal of internal combustion engine control signal.

Therefore, owing to utilizing the phase sensor output internal combustion engine control signal of output motor control signalReference position signal, can save the crank rotational position sensor of describing in above-mentioned patent documentation 1.Therefore, can reduce the quantity (the first object) of sensor. Notice, electric rotating machine can be starting horseReach, magneto or motor generator.

Otherwise, in the time not removing but leave crank rotational position sensor, can be respectively by outputThe phase sensor of internal combustion engine control signal and crank rotational position sensor detect heteropole part. Join at thisIn putting,, can to heteropole part owing to turning over repeated detection between a refunding at the output shaft of internal combustion engineStart to rotarily actuate to detecting that heteropole part is essential to grasp absolute rotational position to reduce from internal combustion engineTime (the second object). Therefore, for example, in the internal combustion engine with idling system, canStage is grasped absolute rotational position in early days, can reduce the time of resetting. In addition, when utilizing two-wheeledWhen the foot-actuated levers of vehicle or starter motor starting, because stage grasp is definitely revolved in early daysTransposition is put, and can be sprayed and be lighted a fire by the fuel of commitment to start the driving of internal combustion engine, in reducingThe starting time of combustion machine.

In addition, form heteropole part in whole direction of rotation in a part for predetermined magnet, this is differentUtmost point part is geomagnetic into the polarity different from predetermined magnet among described multiple magnets or is not magnetizedFor any polarity, and arrange on the swing-around trajectory of this heteropole magnetic part rotating together with rotorPhase sensor. In the time that phase sensor detects heteropole magnetic part, substitute motor control signal, exportableRepresent the internal combustion engine control signal of the absolute rotational position of output shaft.

According to this configuration, because can utilize phase sensor output motor control signal and export internal combustion engineControl signal, can remove the crank rotational position sensor of describing in above-mentioned patent documentation 1. Therefore,Can reduce the quantity (the first object) of sensor.

Be provided with heteropole magnetic part and rotational position sensor, this heteropole magnetic part is by revolving wholeIn veer, a part for the predetermined magnet among multiple magnets is magnetized to the utmost point different from described magnetProperty forms, and this rotational position sensor is arranged on the rotation of the heteropole magnetic part rotating together with rotorOn track, and detect heteropole magnetic part represents the absolute rotational position of output shaft internal combustion with outputMachine control signal. Due to phase sensor being also set except rotational position sensor on swing-around trajectory,In the time that phase sensor detects heteropole magnetic part, substitute motor control signal, the exportable table of phase sensorShow the internal combustion engine control signal of the absolute rotational position of output shaft.

According to this configuration, due to the phase sensor by output internal combustion engine control signal and crank rotation positionPut sensor and detect respectively heteropole magnetic part, can turn between a refunding and examine at the output shaft of internal combustion engineSurvey heteropole magnetic part repeatedly. Therefore, can reduce and start to rotarily actuate different to detecting from internal combustion engineUtmost point magnetic part is to grasp the required time (the second object) of absolute rotational position. Therefore, for example,Have in the internal combustion engine of idling system, because stage is in early days grasped absolute rotational position,Can reduce the time of resetting. In addition, when passing through foot-actuated levers or the starting of sulky vehicleMotor when starting, because stage is in early days grasped absolute rotational position, can be by rank in early daysThe fuel of section sprays and igniting starts the operation of cranking internal combustion engine, to reduce the starting time.

Be provided with heteropole magnetic part and rotational position sensor, this heteropole magnetic part is formed on multiple magneticIn a part for predetermined magnet among body and be geomagnetic into the polarity different from described magnet, this rotationPosition sensor is arranged on the swing-around trajectory of heteropole magnetic part, and detect heteropole magnetic part withOutput represents the internal combustion engine control signal of the absolute rotational position of output shaft. Described heteropole magnetic part canIn direction of rotation, be formed in a part for predetermined magnet.

For example,, as shown in Figure 27 (a), in three parts that are divided into by predetermined magnet 32S (A)Middle body be formed heteropole magnetic part 34, to make in determined magnetic body 32S (A) by referenceThe part that character P represents and heteropole magnetic part 34 are arranged in direction of rotation. Otherwise, as Figure 27(b), shown in, one in two parts that are divided into by predetermined magnet 32S (A) is formed differentUtmost point magnetic part 34, with the part that makes to be represented by reference character Q in determined magnetic body 32S (A) andHeteropole magnetic part 34 is arranged in direction of rotation.

Like this, according to above-mentioned disclosure, because heteropole magnetic part is formed in advance in direction of rotationDetermine in a part for magnet, compared with its traditional structure forming in whole direction of rotation, can subtractBetween little predetermined magnet and heteropole magnetic part at rotation direction (Figure 27 (a) and Figure 27 (b)In vertical direction) on magnet short-cut path length. The output that therefore, can suppress starter motor reduces.In addition, in heteropole magnetic part, can not avoid between predetermined magnet and the tooth portion relative with magnet,Polarity mismatch. But, according to above-mentioned disclosure, because heteropole magnetic part is at direction of rotation (figureHorizontal direction in 27 (a) and Figure 27 (b)) on area reduce, can suppress due to polarity loseThe output of joining the starter motor causing reduces. Notice, when starter motor according to the present invention is with internal combustionMachine drives and used time of doing of playing generator, has increased the generated energy of generator. In addition, with itThe situation that middle heteropole magnetic part forms in whole direction of rotation is compared, and can reduce heteropole magnetic portionDivide the length in direction of rotation. Therefore, can reduce heteropole magnetic part occupies in predetermined magnetArea, and suppress starter motor because the output that exists heteropole magnetic part to cause reduces the (the 3rdObject).

The starter motor with internal combustion engine control signal output function can have arranges in direction of rotationMultiple phase sensors, and there is the crank position representing by described multiple phase sensor outputs for generatingPut the combined information generating apparatus of the combined information of signal.

The starter motor with internal combustion engine control signal output function can have for generating expression about UThe motor control signal of phase coil, about the motor control signal of V phase coil, about W phase coilThe combined information generating apparatus of the combined information of the combination of motor control signal and internal combustion engine control signal.

When interval, the inside edge Lx by based on signal detects the conventional engines control shown in Figure 16Signal ignore part when grasping the absolute rotational position of output shaft, for grasping required time LxaLong. On the other hand, according to above-mentioned disclosure, owing to having produced the combination that represents each signal combinationInformation, can promote by grasping absolute rotational position based on described combined information enforcement differentiation requiredThe minimizing of time.

As the particular instance of " combined information ", from multiple phase sensors (for example, U phase sensor,V phase sensor and W phase sensor) the ON/OFF signal of output is expressed as two entering of " 0 " or " 1 "Number processed. So, for example, by corresponding digital distribution is passed on from one to another to output, the V of U phase sensor3 system numbers that the output of the output of sensor and W phase sensor produces are corresponding with combinations thereof information.

Notice, above-mentioned disclosure be applicable to wherein not arrange U phase sensor, V phase sensor andThe situation of W phase sensor. For example,, in the time that W phase sensor is not set, based on U phase sensor or VThe output of the output time value estimation W phase sensor of phase sensor. The signal estimating and sensor inspectionThe U phase signals measuring and the combination of V phase signals are used as combined information.

Can calculate absolute rotational position based on the combined information at current time place.

In predetermined combinations, absolute rotational position when combination can be specified uniquely. For example,, at Fig. 5(Figure 18), in the situation of the starter motor shown in (electric rotating machine), when comprising, starts combined informationWhen machine control signal and its are " 0 " (referring to the reference character tb in Figure 18), due to now from phaseThe signal of sensor output can be designated as and not be motor control signal but internal combustion engine control signal,Can calculate absolute rotational position.

In above-mentioned disclosure from this starting point, due to the combined information based on current time placeCalculate absolute rotational position, can not need to wait for output record and the combination letter of for example phase sensorIn the situation of the record accumulation of the record of breath, grasp absolute rotational position.

Can calculate absolute rotational position based on the record of combined information.

Notice, even when not utilizing the combined information at current time place to specify uniquely absolute rotation, can specify uniquely absolute rotational position by described combined information record when the position. For example,, at Fig. 7(Figure 19) in the situation of the starter motor shown in (electric rotating machine), even at current time placeWhen combined information comprises engine control signal and is " 0 " (referring to reference character tf, tg and th),Owing to can not specifying the sensor of output internal combustion engine control signal, can not calculate absolute rotational position.But, in Fig. 7, when previous combined information is that " 5 " and current combined information are " 0 "Time (, in the situation that being recorded as " 5 → 0 "), specify in current time place defeated from U phase sensorGo out internal combustion engine control signal. In addition, when previous combined information be " 3 " and its current be " 0 "Time (, in the situation that being recorded as " 3 → 0 "), specify in current time place defeated from V phase sensorGo out internal combustion engine control signal. In Figure 19, when previous combined information is " 4 " and it is currentDuring for " 0 " (, in the situation that being recorded as " 4 → 0 "), specify in current time place from U phaseSensor output internal combustion engine control signal.

In above-mentioned disclosure from this starting point, because the record based on combined information calculates absolutelyTo position of rotation, can be even when not specifying absolute rotational position from the combined information of current timeTime grasp absolute rotational position.

The starter motor with internal combustion engine control signal output function can have rotates starting from internal combustion engineDuring the rotary actuation of calculating absolute rotational position, specify for the combined information based on current time placeThe specified device of next combined information. During rotariling actuate, can be based on by described specified deviceThe result of specifying is determined the energising Control the content to the coil corresponding with phase sensor.

Notice, in the time of the energising timing control (motor control) based on motor control signal, necessaryWhether next time from the motor control signal of phase sensor output be the N utmost point or the S utmost point, and set if graspingCorresponding to the energising Control the content of next magnetic pole. In addition, do not grasp even therein absolute rotationDuring the rotary actuation of position, under can being specified by the combined information at current time place in some casesA magnetic pole. For example,, in the starter motor (electric rotating machine) in Fig. 5 (Figure 18), currentWhen the combined information at moment place be " 3 ", next combined information is appointed as to " 2 ", and definite andThe next magnetic pole that U phase coil is corresponding becomes the N utmost point from the S utmost point.

In above-mentioned disclosure from this starting point, the combined information based on current time place is specifiedThe content of the signal of next time exporting from phase sensor, and determine energising Control the content. Therefore, veryTo during rotariling actuate, do not need the accumulation of combined information record, and can determine and the next oneThe energising Control the content that pole pair is answered.

In described multiple phase sensor at least two can be arranged on the swing-around trajectory of heteropole magnetic partOn.

According to above-mentioned disclosure, due to can the output shaft of internal combustion engine turn between a refunding, increase differentThe detection number of times of utmost point part, can promote the minimizing of the time of grasping absolute rotational position.

For example, when for example due to start from stopped status rotarily actuate and can not be from multiple candidate value middle fingersWhen fixed next combined information, of selecting is assumed to next combination letter from described candidate valueBreath, then controls the energising to the coil corresponding with phase sensor. Result is, when regularly pre-in processBetween after the output of sensor while not changing, determine that rotor does not rotate and will from all the other candidate values, selectOne be assumed to next combined information, and control energising to the coil corresponding with phase sensor.

For example, in the case of the starter motor shown in Fig. 7 (electric rotating machine), do not count thereinCalculate the dwell time of absolute rotational position, comprise engine control letter at the combined information at current time placeNumber and while being " 0 ", can not determine whether next combined information is " 3 " or " 6 ". Like this,In the time can not determine next combined information, according to above-mentioned disclosure, will be from candidate value " 3 " and " 6 "In one (for example, " 3 ") selecting be defined as next combined information and implement energising and control (horseReach to drive and control). Result is, when in the time not changing through combined information " 0 " after the scheduled time,That is to say, in the time that motor is not driven in rotation, by a value " 6 " of selecting from all the other candidate valuesBe defined as next combined information, and again implement energising and control. Due to all candidate values orderEnergising control is implemented until implement to rotarily actuate in ground, even can not specify next combined informationShi Shixian motor drives.

Notice, for example, in the case of the starter motor shown in Figure 18, do not calculate absolutely thereinTo the dwell time of position of rotation, comprise that at the combined information at current time place engine control signal alsoAnd while being " 2 " (referring to reference character tc), can not determine next combined information be whether " 2 " or" 6 ". Like this, in the time can not determine next combined information, according to above-mentioned disclosure, will be from waitingOne (for example, " 2 ") selecting in choosing value " 2 " and " 6 " be assumed to next combined information andImplement energising and control (motor drives and controls). Result is, when combined information after the process scheduled timeWhen " 0 " does not change, that is to say, in the time that motor is not driven in rotation, will be from all the other candidate valuesIn the value " 6 " selected be assumed to next combined information, and implement energising and control. Due toAll candidate values are sequentially implemented energising and are controlled, until implement to rotarily actuate, even can be able to not refer toWhen fixed next combined information, realizing motor drives.

When as all multiple candidate values are sequentially defined as to the result that next combined information is controlledAnd normally do not implement yet motor drive time, can by be different from first front sequence order implement control.

For example,, in the case of the starter motor shown in Figure 19, when working as in computing interval starting timeFront moment place combined information while being " 0 " (referring to reference character tf, tg and th), as retouched aboveThe situation of the Figure 18 stating, can not determine whether next combined information is " 3 ", " 2 " or " 6 ". AlsoIn other words, for example, in the time that the combined information " 0 " at current time place is attributed to reference character tf, under supposingA combined information is " 3 ", and implements energising and control, and then can normally implement motor and drive.In addition,, in the time that the combined information " 0 " at current time place is attributed to reference character tg, determine next combinationInformation is " 2 ". In the time that the combined information " 0 " at current time place is attributed to reference character th, suppose nextIndividual combined information is " 6 ", and implements energising and control, and then can normally implement motor and drive. SoAnd, in the example of Figure 19, can not determine the information " 0 " at computing interval starting time current time placeWhether be attributed to reference character tf, tg or th.

Therefore, suppose that next combined information is for " 3 ", and implement energising and control. Result is, whenCan not normally implement motor driving time, suppose that next combined information is for " 2 ", and implement energisingControl. Result is, in the time can not normally implementing motor and drive, supposes that next combined information is for " 6 ",And implementing energising controls. But, as shown in Figure 19, when setting like this occurs continuously makingWhen the three or more combined information that can not specify, in some cases, as mentioned above with " 3 ",When " 2 " and " 6 " order is implemented, rotor rotates and phase deviation slightly.

For example, in some cases, suppose that it is in tf, although it is in fact in tg, and pressImplementing energising according to " 3 " controls. Result is in some cases, to make it turn to the phase place of th. ?In this situation, drive owing to can not normally implementing motor, suppose that it is next time in tg, and rootImplement energising according to " 2 " and control, then make it turn to the phase place of tg. In this case, due to can notThe normal motor of implementing drives, and supposes that it is next time in th, and implements energising according to " 6 " and control.Therefore,, in the time there is phase shift by which, even work as with all candidate values " 3 ", " 2 " and " 6 " in factWhile executing energising control, can not normally implement motor and drive.

In above-mentioned disclosure from this starting point, when with all multiple candidate values " 3 ", " 2 "" 6 " in order (for example, 3 → 2 → 6) are implemented energising control but still can not normally be implemented motor and driveWhen moving, suppose that next combined information for example, in the order different from first front sequence (, 2 → 3 → 6),And implementing energising controls. Therefore, because the order having provided not cause above-mentioned phase shift is implemented to controlChance, can normally implement motor drive.

The duration of ignition or the fuel that can the renewal timing based on combined information carry out controlling combustion engine spray.

For example, contrary with above-mentioned disclosure, when the variation timing control based on U phase sensor signalWhen the duration of ignition or fuel spray, the period ratio combined information that changes timing due to sensor signal moreThe new cycle is long, the limit or the restriction that exist high-precision control point fire time or fuel to spray. Therefore, existIn above-mentioned disclosure, according to spraying the renewal timing control duration of ignition of combined information or fuel, canTo control accurately them.

Notice, above-mentioned disclosure is not limited to use the renewal timing of all combined informations. For example,Can so arrange, to make among all renewal timings, only use and wherein U phase signals and VThe identical renewal timing of timing that phase signals changes, and not by the timing phase changing with W phase signals whereinSame renewal timing is used for the control duration of ignition etc. Alternatively, can so arrange, to makeAmong all renewal timings, the only renewal timing at the degree in crank angle place in preset range, for example only useNear the timing compression travel of controlling the duration of ignition is used to the control duration of ignition etc. According to theseConfiguration, can improve the precision of control, reduces to control the load of processing simultaneously.

Can in the gap of multiple tooth portion, multiple phase sensors be set. May forbid described multipleWhen phase sensor is arranged in the adjacent segment among multiple gaps of arranging along direction of rotation, Ke YifenSensor is set loosely.

U phase sensor, V phase sensor and W phase sensor can be arranged on to the gap of multiple tooth portionIn, and can be by least two settings in U phase sensor, V phase sensor and W phase sensorFor described phase sensor. May forbid described multiple phase sensor be arranged on along direction of rotation arrangeIn adjacent segment among multiple gaps time, sensor can be set dispersedly.

Rotational position sensor and phase sensor are arranged in the gap of multiple tooth portion. May forbid byRotational position sensor and phase sensor be arranged on along direction of rotation arrange multiple gaps among adjacentIn gap time, sensor can be set dispersedly.

Notice, because the quantity of the sensor as phase sensor is large, can be increased in output shaft and turnAfter between a refunding, detect the number of times of heteropole part. Therefore, can reduce from internal combustion engine and start to rotate to inspectionMeasure heteropole magnetic part (heteropole magnetic part) to grasp the required time of absolute rotational position. SoAnd, in the time that the interval of set phase sensor is too narrow, can not fully reduces and start to revolve from internal combustion engineForward to and detect that heteropole part is to grasp the required time of absolute rotational position. From this starting pointIn above-mentioned disclosure, forbid multiple phase sensors to be arranged in adjacent segment, and establish dispersedlyPut sensor. Therefore, can reduce fully and grasp the required time of absolute rotational position.

Heteropole part can so be formed in a part for predetermined magnet in direction of rotation, pre-to makeDetermine magnet and heteropole part and in direction of rotation, arrange (arrangement).

For example, as shown in Fig. 4 (a), be divided into along direction of rotation by predetermined magnet 32S (A) threeMiddle body in individual part is formed heteropole part (heteropole magnetic part 34), so that be able to referenceThe part that character P represents and heteropole magnetic part 34 along direction of rotation at described predetermined magnet 32S (A)Middle layout. Alternatively, as shown in Fig. 4 (b), be divided into by described predetermined magnet 32S (A)A heteropole part (heteropole magnetic part 34) being formed in direction of rotation in two parts,So that be able to part that reference character Q represents and heteropole magnetic part 34 along direction of rotation at predetermined magnetIn 32S (A), arrange.

Like this, according to above-mentioned disclosure, because heteropole magnetic part is formed in advance in direction of rotationDetermine in a part for magnet, compared with traditional structure in its Fig. 9 forming in whole direction of rotation,Can reduce between predetermined magnet and heteropole magnetic part direction of rotation (the vertical side in Fig. 4 (b)To) on magnet short-cut path length. Therefore, play the work of starter motor when electric rotating machine according to the present inventionUsed time, can suppress reducing of starter motor output. In addition, can not avoid heteropole part and with predeterminedBetween the relative tooth portion of magnet, there is polarity mismatch, but, according to above-mentioned disclosure, due to heteropoleThe area of part reduces in direction of rotation (horizontal direction in Fig. 4 (a) and Fig. 4 (b)), canThat exports with the starter motor (electric rotating machine) that suppresses to cause according to polarity mismatch reduces. Notice,When electric rotating machine according to the present invention is by internal combustion engine drive and used time of doing of playing generator, increaseThe generated energy of generator. In addition, with feelings that wherein heteropole magnetic part forms in whole direction of rotationCondition is compared, and the length of heteropole magnetic part in direction of rotation can be shorter. Therefore, can reduce heteropoleThe area that part is occupied with respect to predetermined magnet, and suppress electric rotating machine (starter motor or generatingMachine) because the output that exists heteropole part to cause reduces.

Can so arrange, be positioned at heteropole part with the polarity that makes determined magnetic body along direction of rotationBoth sides. For example, as shown in Fig. 4 (a) (Figure 27 (a)), predetermined magnet is divided into three parts,And middle body is formed heteropole part.

Notice, contrary with above-mentioned disclosure, as shown in Fig. 4 (b) (Figure 27 (b))In the situation of bipartite structure, can utilize sensor to detect two magnetic of contiguous predetermined magnet 32S (A)In body (in abutting connection with magnet 32N (B) and (C)) one, in abutting connection with magnet 32N (B) with predeterminedThe timing (rectification timing or commutation timing) of the change in location between magnet 32S (A). But, noCan detect that another is in abutting connection with the rectification timing between magnet 32N (C) and predetermined magnet 32S (A).On the other hand, because above-mentioned disclosure has three points of knots as shown in Fig. 4 (a) (Figure 27 (a))Structure, can detect about both sides in abutting connection with magnet 32N (B) and rectification timing (C). Therefore,The adjusting of selection timing of Control the content can promote to switch on.

In addition,, according to above-mentioned disclosure, be divided into two parts and predetermined with predetermined magnet whereinThe polarity (referring to reference character Q) of magnet is only positioned at different as shown in Fig. 4 (b) (Figure 27 (b))The situation of one side of utmost point part is compared, and can further reduce the length of heteropole part in direction of rotation.Therefore, can further reduce the magnet short-cut path amount between predetermined magnet and heteropole part, and furtherReduce the occupied area of heteropole part of polarity mismatch. In addition, can promote electric rotating machine (to riseMoving motor or generator) the inhibition that reduces of output.

Phase sensor can be arranged on the position different from rotational position sensor along direction of rotation, andCan be arranged on the swing-around trajectory of heteropole magnetic part. When phase sensor detects heteropole magnetic partTime, substitute motor control signal, in the absolute rotational position of the exportable expression output shaft of phase sensorCombustion machine control signal.

According to above-mentioned disclosure, can utilize phase sensor and rotational position sensor to detect heteropole magneticProperty part, to export internal combustion engine control signal. Therefore, owing to turning at the output shaft of internal combustion engineBetween one refunding, repeated detection, to heteropole magnetic part, can reduce from internal combustion engine and start to rotarily actuate to inspectionMeasure heteropole magnetic part to grasp the required time (the second object) of absolute rotational position.

Notice, contrary with above-mentioned disclosure, when heteropole magnetic part shape in whole direction of rotationWhile being formed in predetermined magnet, phase sensor can not detect the polarity of predetermined magnet. Therefore, Bu NengjingReally grasp from the state variation that wherein predetermined magnet is located in the detection position of phase sensor to wherein adjacentConnect the timing (rectification timing) of the state of magnet location. Therefore, existence can not will change leading to coilThe worry into suitable timing is accurately controlled in the timing of electric control.

On the other hand, because the polarity of predetermined magnet is positioned at two of heteropole magnetic part along direction of rotationSide, can accurately grasp the rectification timing about phase sensor, and by expansion, can be by logicalThe variation timing of electric control content is accurately controlled as approximate timing.

The starter motor with internal combustion engine control signal output function can be applied on vehicle, described carUsing described internal combustion engine as the drive source that travels, and there is torque-transmitting mechanisms, with turning at output shaftSpeed is equal to or higher than under the condition of predetermined value the driving wheel to vehicle by the transmission of torque of output shaft.

When the used time of doing that electric rotating machine plays starter motor, utilizing phase sensor as mentioned above in outputCombustion is when machine control signal, existence can not with suitable energising control Content Implementation motor control and by withThe direction rotation of required opposite direction drives the worry of starter motor, because from stopping to rotary actuationTime can not determine that from the signal of phase sensor output be motor control signal or internal combustion engine control signal.

About this worry, above-mentioned disclosure is applicable to be equal to or higher than predetermined value at the rotating speed of output shaftCondition under by the transmission of torque of output shaft the vehicle to driving wheel. Even when starter motor rotates backwardTime, opposing torque is not passed to driving wheel, and Vehicle Driving Cycle is not exerted one's influence. Therefore, canTo solve above-mentioned worry.

Above-mentioned output shaft can be crank axle, and above-mentioned rotor can be fixed on crank axle, withAll the time with the rotating speed rotation identical with crank axle.

Notice, contrary with above-mentioned disclosure, when crank axle and rotor are via for example belt or gearPoewr transmission mechanism while connecting, because backlash, the elongation of belt etc. of gear are in the rotation of crank axleBetween phase place and the rotatable phase of rotor, there is skew. Therefore, based on being attached on rotor by detectionThe absolute rotational position of the crank axle that calculates of the heteropole part internal combustion engine control signal that obtains and export beWith respect to the value of actual absolute rotational position skew.

Above-mentioned disclosure is from this starting point applicable to such vehicle, wherein because rotor quilt is solidFixed to crank axle and all the time with the rotational speed identical with crank axle, can reduce based on internal combustion engineSkew between the absolute rotational position that control signal calculates and actual absolute rotational position. Therefore,Can implement accurately the calculating of the absolute rotational position of crank axle (output shaft).

The absolute rotational position with the high likelihood that output shaft stops in the time that internal combustion engine stops can be by advanceFirst be set as stopping estimating position. Phase sensor and heteropole part can so arrange, to make heteropole portionDivide (heteropole magnetic part) to be positioned at the position that shifts to an earlier date scheduled volume from the position relative with phase sensor, fromAnd described in avoiding, stop estimating position.

Notice, with above-mentioned disclosure contrary, output shaft stops at and stops estimating position thereinUnder state, when heteropole part (heteropole magnetic part) in the position relative with phase sensor or from, in the dwell time of not grasping absolute rotational position, export when this relative position is delayed slightly the positionInternal combustion engine control signal. In this case, probably can not be with suitable energising control Content Implementation horseReach control.

In above-mentioned disclosure from this starting point, output shaft stops at and stops estimating position thereinUnder the state of putting, heteropole part (heteropole magnetic part) in the position from relative with phase sensor slightlyMicro-position shifting to an earlier date. Therefore, can reduce as mentioned above not with suitable energising control Content Implementation horseReach the possibility of control.

The absolute rotational position with the high likelihood that output shaft stops in the time that internal combustion engine stops can be by advanceFirst be set as stopping estimating position (for example,, in the scope from about BTDC150o to top dead-centre TDCIn). Stop at output shaft under the state that stops estimating position, phase sensor and heteropole portion are so setPoint (heteropole magnetic part), with make heteropole part (heteropole magnetic part) in phase sensor (orRotational position sensor) relative position or from phase sensor (or rotational position sensor) phaseThe position of scheduled volume is delayed in right position.

According to above-mentioned disclosure, owing to starting to export immediately internal combustion engine after rotary actuation at internal combustion engineControl signal, can promptly calculate absolute rotational position and promotion based on internal combustion engine control signalGrasp the absolute rotational position minimizing of required time.

Heteropole part is the nonmagnetic portion that is not geomagnetic into the N utmost point or the S utmost point, and for passing through excisionThe space that a part for predetermined magnet forms.

According to the above-mentioned disclosure using nonmagnetic portion as heteropole part in this way, and wherein willThe heteropole magnetic part that is magnetized to the polarity different from predetermined magnet is compared as the situation of heteropole part,The present invention is favourable in the following areas. That is to say, owing to having saved, generation heteropole magnetic part is (differentUtmost point part) magnetization process and only by form otch form nonmagnetic portion (heteropole part),Can realize easily the formation of heteropole part.

In addition, contrary with above-mentioned disclosure, in the time that heteropole magnetic part is used as heteropole part, edgeDirection of rotation (vertical direction in Fig. 4 (a) and Fig. 4 (b)) is in predetermined magnet and heteropole magnetic portionBetween point, there is magnet short-cut path. In this, above-mentioned according to using nonmagnetic portion as heteropole partDisclosure, can reduce magnet short-cut path amount, and suppress starter motor output reduce or as sending outThe minimizing of the generated energy output of motor.

Can provide U phase coil, V phase coil and W phase coil using as described coil. Can provideThe U phase signals that output is used for controlling the energising timing to U phase coil is using the U as motor control signalPhase sensor, output for the V phase signals of controlling the energising timing to V phase coil using as motor controlThe V phase sensor of signal processed and output are for controlling the W phase signals of the energising timing to W phase coilUsing at least one in the W phase sensor as motor control signal. U phase sensor, V phase sensingAt least one in device and W phase sensor is arranged on heteropole part (heteropole magnetic as position sensorPart) swing-around trajectory on.

Like this, there is (the rotation of the three-phase starter motor of U phase coil, V phase coil and W phase coilMotor) situation under, can utilize each biography of the output motor control signal corresponding with each coilSensor output internal combustion engine control signal. Notice, even the in the situation that of three-phase starter motor, at certainIn a little situations, all U phase sensors, V phase sensor and W phase sensor may be set. In advanceFixed disclosure is applicable to this starter motor. For example,, in the time that W phase sensor is not set, based on UThe outgoing position of the output estimation W phase sensor of phase sensor or V phase sensor. Based on what estimateSignal is to the control of switching on of W phase coil.

In addition, in all U phase sensors, V phase sensor and W phase sensor can be used for exportingThe control of combustion machine, or in two sensors one can be used for exporting internal combustion engine control signal. Due toThe increase of the quantity of the sensor using, turns over heteropole part between a refunding at the output shaft of internal combustion engineDetection number of times increase, can promote to grasp the minimizing of absolute rotational position required time.

Although described the present invention with reference to embodiment, should be appreciated that and the invention is not restricted to theseEmbodiment and structure. The present invention should be contained various modification and equal configuration. In addition, although discloseVarious combinations and structure, comprise that other combination more, still less or only single element and structure also drop onIn the spirit and scope of the present invention.

Claims

1. have an electric rotating machine for internal combustion engine control signal output function, described electric rotating machine comprises:

By alternately arrange along direction of rotation have opposed polarity magnet (32N, 32S) formRotor (30);

By the stator (40) of arranging that along described direction of rotation multiple tooth portions (41) form, wherein eachIn tooth portion (41), be wound with coil (CU, CV, CW); And

Be attached to position relative with described magnet (32N, 32S) in described stator (40) and defeatedGo out the crank position signal corresponding with the polarity of described magnet (32N, 32S) or motor control signalAt least one in phase sensor (SU, SV, SW, SE),

Wherein be geomagnetic into described magnet (32N, 32S) among predetermined magnet (32N, 32S)Different polarity or the heteropole part (34,34k) that is not geomagnetic into any polarity are formed at described pre-Determine in a part for magnet,

Wherein export at least one the phase sensor (SU) and defeated in the phase sensor of motor control signalThe phase sensor (SE) that goes out crank position signal is arranged on the institute rotating together with described rotor (30)State on the swing-around trajectory of heteropole part (34,34k), or the phase sensor of output motor control signalAt least one in (SU, SV, SW) is arranged on described swing-around trajectory, and

Another in phase sensor (SU, SV, SW) is arranged on the position beyond described swing-around trajectoryPut,

The phase sensor (SU) that wherein ought be positioned on described swing-around trajectory detects described heteropole partWhen (34,34k), described phase sensor (SU) output represents the output shaft (14) of internal combustion engineThe internal combustion engine control signal of absolute rotational position; And

Wherein said rotor is controlled, with based on output motor control signal all phase sensors (SU,SV, SW) output and rotate.

2. the electric rotating machine with internal combustion engine control signal output function according to claim 1,It is characterized in that,

Multiple phase sensors (SU, SV, SW) arrange along described direction of rotation, and

Wherein said electric rotating machine also comprise for generate represent from described multiple phase sensors (SU, SV,SW) the combined information generating apparatus (S20) of the combined information of the combination of the crank position signal of output.

3. the electric rotating machine with internal combustion engine control signal output function according to claim 2,It is characterized in that, the combined information based on current time place calculates described absolute rotational position.

4. according to the electric rotating with internal combustion engine control signal output function described in claim 2 or 3Machine, is characterized in that, the record based on described combined information calculates described absolute rotational position.

5. according to the electric rotating with internal combustion engine control signal output function described in claim 2 or 3Machine, is characterized in that, also comprises for describedly definitely revolving starting to rotate to from described internal combustion engine to calculateCombined information based on current time place during the rotary actuation that transposition is put is specified next combined informationSpecified device (13),

Wherein, during described rotary actuation, the result based on being specified by described specified device (13) is trueFixed leading to the coil (CU, CV, CW) corresponding with described phase sensor (SU, SV, SW)Electric control content.

6. according to the electric rotating with internal combustion engine control signal output function described in claim 2 or 3Machine, is characterized in that, at least two settings in described multiple phase sensors (SU, SV, SW)On the swing-around trajectory of described heteropole part (34,34k).

7. according to the electric rotating with internal combustion engine control signal output function described in claim 2 or 3Machine, is characterized in that,

In the time can not determining next combined information from multiple candidate value middle fingers, suppose from described candidate valueSelect one is next combined information, and control to described phase sensor (SU, SV, SW)The energising of corresponding coil (CU, CV, CW), and

Wherein, result is, in the time not changing through the output of described sensor after the scheduled time, reallyFixed described rotor (30) does not rotate, supposes from one that selects among all the other candidate values and is next groupClose information, and sequentially control the coil corresponding with described phase sensor (SU, SV, SW)The energising of (CU, CV, CW).

8. according to the electric rotating with internal combustion engine control signal output function described in claim 2 or 3Machine, is characterized in that, described in the renewal timing control based on described combined information when the igniting of internal combustion engineBetween or fuel spray.

9. according to the electric rotating with internal combustion engine control signal output function described in claim 2 or 3Machine, is characterized in that, described multiple phase sensors (SU, SV, SW) are arranged on described multiple toothIn the gap of portion (41), and

Wherein described multiple phase sensors (SU, SV, SW) are arranged on along described rotation forbiddingIn adjacent segment among multiple gaps that direction is arranged time, described multiple phase sensor is set dispersedly(SU、SV、SW)。

10. according to thering is internal combustion engine control signal output work described in any one in claims 1 to 3Can electric rotating machine, it is characterized in that, described heteropole part (34,34k) is along described direction of rotation shapeBe formed in a part of described predetermined magnet (32N, 32S), with make described predetermined magnet (32N,32S) and described heteropole part (34,34k) arrange along described direction of rotation.

11. electric rotating machines with internal combustion engine control signal output function according to claim 10,It is characterized in that, the polarity of described predetermined magnet (32N, 32S) is positioned at institute along described direction of rotationState the both sides of heteropole part (34,34k).

12. according to having an internal combustion engine control signal output work described in any one in claims 1 to 3The electric rotating machine of energy, is characterized in that, described electric rotating machine is applied in vehicle, and described vehicle willDescribed internal combustion engine is as the drive source that travels, and has torque-transmitting mechanisms, with in described output shaft (14)Rotating speed be equal to or higher than under the condition of predetermined value the transmission of torque of described output shaft (14) to vehicleDriving wheel.

13. according to having an internal combustion engine control signal output work described in any one in claims 1 to 3The electric rotating machine of energy, is characterized in that,

Described output shaft is crank axle (14), and

It is upper that wherein said rotor (30) is fixed to described crank axle (14), and all the time with instituteState the identical rotational speed of crank axle (14).

14. according to having an internal combustion engine control signal output work described in any one in claims 1 to 3The electric rotating machine of energy, is characterized in that,

The absolute rotation position of the high likelihood that output shaft described in having in the time that internal combustion engine stops (14) stopsPut to be redefined for and stop estimating position, and

Wherein said phase sensor (SU, SV, SW) and described heteropole part (34,34k) are establishedBe set to make described heteropole part (34,34k) in from described phase sensor (SU, SV, SW)Relative position shifts to an earlier date the position of scheduled volume, thereby described in avoiding, stops estimating position.

15. according to having an internal combustion engine control signal output work described in any one in claims 1 to 3The electric rotating machine of energy, is characterized in that,

Wherein said phase sensor (SU, SV, SW) and described heteropole part (34,34k) are establishedBe set to and make to stop under the state of estimating position described in stopping at described output shaft (14), described differentUtmost point part (34,34k) in the position relative with described phase sensor or from described phase sensorThe position of scheduled volume is delayed in the position that (SU, SV, SW) is relative.

16. according to having an internal combustion engine control signal output work described in any one in claims 1 to 3Can electric rotating machine, it is characterized in that, described heteropole part (34,34k) is not for being geomagnetic into the N utmost pointOr the nonmagnetic portion of the S utmost point (34k), and it is for passing through the described predetermined magnet of excision (32N, 32S)The space that forms of a part.

17. according to having an internal combustion engine control signal output work described in any one in claims 1 to 3The electric rotating machine of energy, is characterized in that,

The polarity of described phase sensor (SU, SV, SW) output and described magnet (32N, 32S)Corresponding motor control signal,

Wherein said electric rotating machine is the electric rotating machine that plays the effect of starter motor, described starter motorThe energising of the motor control signal control detecting by basis to described coil (CU, CV, CW)Timing is driven in rotation, thereby rotarilys actuate the output shaft (14) of described internal combustion engine, and

Wherein when described phase sensor (SU, SV, SW) detects described heteropole part (34,34k)Time, substituting described motor control signal, described phase sensor (SU, SV, SW) output is for instituteState the reference position signal of internal combustion engine control signal.

18. electric rotating machines with internal combustion engine control signal output function according to claim 17,It is characterized in that,

U phase coil (CU), V phase coil (CV) and W phase coil (CW) are provided to conductDescribed coil (CU, CV, CW),

Wherein output for the U phase signals of controlling energising timing to described U phase coil (CU) withU phase sensor (SU), output as described motor control signal are used for controlling described V phase lineThe V phase signals of the energising timing of circle (CV) is using the V phase sensor as described motor control signal(SV) and output for controlling the W phase signals of energising timing to described W phase coil (CW)Be provided using at least one in the W phase sensor (SW) as described motor control signal, andAnd

Wherein said U phase sensor (SU), described V phase sensor (SV) and described W pass on from one to anotherDescribed at least one in sensor (SW) is arranged on as described phase sensor (SU, SV, SW)On the swing-around trajectory of heteropole part (34,34k).

19. electric rotating machines with internal combustion engine control signal output function according to claim 18,It is characterized in that, described heteropole part (34) is formed at described predetermined in whole described direction of rotationIn the described part of magnet (32N, 32S), and when described phase sensor (SU, SV, SW)When described heteropole part (34) detected, substitute described motor control signal, described phase sensor (SU,SV, SW) export described internal combustion engine control signal.

20. 1 kinds have the starter motor of internal combustion engine control signal output function, described starter motor bagDraw together:

Along described direction of rotation setting and be attached in described stator (40) and described magnet (32N, 32S)Multiple phase sensors (SU, SV, SW) of relative position, described multiple phase sensor output and instituteState motor control signal corresponding to the polarity of magnet (32N, 32S) phase sensor (SU, SV,SW)，

Wherein by the motor control signal control based on detecting to described coil (CU, CV, CW)Energising timing rotarily actuate described starter motor, thereby rotarily actuate the output shaft (14) of internal combustion engine,

Wherein said starter motor also comprises:

By by a part for the predetermined magnet (32N, 32S) among described magnet (32N, 32S)Be magnetized to and be different from the polarity of described magnet (32N, 32S) and shape in whole described direction of rotationThe heteropole magnetic part (34) becoming; And

Be arranged on the rotation of the described heteropole magnetic part (34) rotating together with described rotor (30)On track and detect described heteropole magnetic part (34) and represent described output shaft (14) to exportThe rotational position sensor (SE) of the internal combustion engine control signal of absolute rotational position, and

Wherein except described rotational position sensor, described multiple phase sensors (SU, SV, SW)In at least one phase sensor (SU) be also arranged on described swing-around trajectory, and described multiple phaseOther phase sensor (SV, SW) in sensor (SU, SV, SW) is arranged on described rotationPosition beyond track,

Wherein ought be positioned at phase sensor (SU) on described swing-around trajectory and described heteropole magnetic portion be detectedWhile dividing (34), substitute described motor control signal, described in described phase sensor (SU) output representsThe internal combustion engine control signal of the absolute rotational position of output shaft (14), and

Wherein said rotor (30) is controlled, with based on described multiple phase sensors (SU, SV, SW)Output and rotate.

21. 1 kinds have the starter motor of internal combustion engine control signal output function, described starter motor bagDraw together:

Be attached to position relative with described magnet (32N, 32S) in described stator (40) and defeatedGo out the motor control signal corresponding with the polarity of described magnet (32N, 32S) phase sensor (SU,SV、SW)，

Wherein said starter motor also comprises:

Be formed at a part for the predetermined magnet (32N, 32S) among described magnet (32N, 32S)In and be geomagnetic into the heteropole magnetic part (34) of the polarity different from described magnet (32N, 32S);And

Wherein said heteropole magnetic part (34) is formed at described predetermined magnet along described direction of rotationIn the part of (32N, 32S), and

Wherein said heteropole magnetic part (34) is formed and makes described predetermined magnet (32N, 32S)Polarity be positioned at the both sides of described heteropole magnetic part (34) along described direction of rotation.

22. 1 kinds have the starter motor of internal combustion engine control signal output function, described starter motor bagDraw together:

Wherein said starter motor also comprises:

Wherein said predetermined magnet (32N, 32S) is divided into two parts in direction of rotation, andOne in described two parts is formed described heteropole magnetic part (34).

23. according to described in claim 21 or 22 have internal combustion engine control signal output function riseMoving motor, is characterized in that, described phase sensor (SU, SV, SW) is established along described direction of rotationPut and be different from the position of described rotational position sensor (SE) and be arranged on described heteropole magnetic part(34) on swing-around trajectory, and when described in described phase sensor (SU, SV, SW) detectsWhen heteropole magnetic part (34), substitute described motor control signal, described phase sensor (SU, SV,SW) output represents the internal combustion engine control signal of the absolute rotational position of described output shaft.

24. export according to the internal combustion engine control signal that has described in any one in claim 20 to 22The starter motor of function, is characterized in that, U phase coil (CU), V phase coil (CV) and W phaseCoil (CW) is provided, using as described coil (CU, CV, CW),

Wherein said U phase sensor (SU), described V phase sensor (SV) and described W pass on from one to anotherDescribed at least one in sensor (SW) is arranged on as described phase sensor (SU, SV, SW)On the swing-around trajectory of heteropole magnetic part (34,34k).

25. starter motors with internal combustion engine control signal output function according to claim 24,It is characterized in that, also comprise generate represent for the motor control signal of described U phase coil (CU),For the motor control signal of described V phase coil (CV), for described W phase coil (CW)The combined information of the combined information of the combination of motor control signal and described internal combustion engine control signal generates dressPut (S20).

26. starter motors with internal combustion engine control signal output function according to claim 25,It is characterized in that, the described combined information based on current time place calculates absolute rotational position.

27. starter motors with internal combustion engine control signal output function according to claim 25,It is characterized in that, the record based on described combined information calculates absolute rotational position.

28. starter motors with internal combustion engine control signal output function according to claim 25,It is characterized in that, also comprise for starting to rotate to calculating described absolute rotation position from described internal combustion engineCombined information based on current time place during the rotary actuation of putting is specified the appointment of next combined informationDevice (13),

29. starter motors with internal combustion engine control signal output function according to claim 25,It is characterized in that,

When can not be from the fixed next combined information of multiple candidate value middle fingers, suppose from described candidate value itIn select one be next combined information, then control to described phase sensor (SU, SV,SW) energising of corresponding coil (CU, CV, CW), and

Wherein, result is, in the time not changing through the output of described sensor after the scheduled time, to sentenceFixed described rotor (30) does not rotate, and supposition is next from of selecting among all the other candidate valuesIndividual combined information, and control to the coil corresponding with described phase sensor (SU, SV, SW) (CU,CV, CW) energising.

30. starter motors with internal combustion engine control signal output function according to claim 29,It is characterized in that, for all described multiple candidate values, sequentially determine that described candidate value is nextCombined information is also implemented to control, and result is, in the time normally implementing not yet motor and drive, with previously suitableThe order that order is different is implemented to control.

31. starter motors with internal combustion engine control signal output function according to claim 25,It is characterized in that, described in the renewal timing control based on described combined information the duration of ignition of internal combustion engine orFuel sprays.

32. starter motors with internal combustion engine control signal output function according to claim 24,It is characterized in that,

Described U phase sensor (SU), described V phase sensor (SV) and described W phase sensor(SW) be arranged in the gap of described multiple tooth portions (41),

Wherein said U phase sensor (SU), described V phase sensor (SV) and described W pass on from one to anotherAt least two in sensor (SW) are set to described phase sensor (SU, SV, SW), and

Wherein ought forbid described multiple phase sensors (SU, SV, SW) to be arranged on along described rotationIn adjacent segment among multiple gaps that direction is arranged time, described multiple phase sensor is set dispersedly(SU、SV、SW)。

33. export according to the internal combustion engine control signal that has described in any one in claim 20 to 22The starter motor of function, is characterized in that, also comprises rotational position sensor (SE), this position of rotationSensor (SE) is arranged on the described heteropole magnetic part (34) rotating together with described rotor (30)Swing-around trajectory on, and detect described heteropole magnetic part (34), represent described output shaft to export(14) the internal combustion engine control signal of absolute rotational position,

Wherein said rotational position sensor (SE) and described phase sensor (SU, SV, SW) are establishedPut in the gap of described multiple tooth portions (41), and

Wherein ought forbid by described rotational position sensor (SE) and described phase sensor (SU, SV,SW) while being arranged in the adjacent segment among multiple gaps of arranging along described direction of rotation, dispersedlyDescribed rotational position sensor (SE) and described phase sensor (SU, SV, SW) are set.

34. export according to the internal combustion engine control signal that has described in any one in claim 20 to 22The starter motor of function, is characterized in that,

Described output shaft (14) is crank axle (14), and

35. export according to the internal combustion engine control signal that has described in any one in claim 20 to 22The starter motor of function, is characterized in that,

Wherein said phase sensor (SU, SV, SW) and described heteropole magnetic part (34) are establishedBe set to make described heteropole magnetic part (34) in from described phase sensor (SU, SV, SW)Relative position shifts to an earlier date the position of scheduled volume, thereby described in avoiding, stops estimating position.

36. export according to the internal combustion engine control signal that has described in any one in claim 20 to 22The starter motor of function, is characterized in that,

Wherein said phase sensor (SU, SV, SW) and described heteropole magnetic part (34) are establishedBe set to and make to stop under the state of estimating position described in stopping at described output shaft (14), described differentUtmost point magnetic part (34) in the position relative with described phase sensor or from described phase sensorThe position of scheduled volume is delayed in the position that (SU, SV, SW) is relative.

37. export according to the internal combustion engine control signal that has described in any one in claim 20 to 22The starter motor of function, is characterized in that, also comprises rotational position sensor (SE), this position of rotationSensor (SE) is arranged on the described heteropole magnetic part (34) rotating together with described rotor (30)Swing-around trajectory on, and detect described heteropole magnetic part (34), represent described output shaft to export(14) the internal combustion engine control signal of absolute rotational position,

Wherein stop under the state of estimating position described in stopping at described output shaft (14), described differentUtmost point magnetic part (34) is configured such that described heteropole magnetic part (34) is in passing on from one to another with describedThe position that sensor (SU, SV, SW) or described rotational position sensor (SE) are relative or fromDescribed phase sensor (SU, SV, SW) or the relative position of described rotational position sensor (SE)Delay the position of scheduled volume.