CN103597717A

CN103597717A - Rotating machine having function of outputting signal for controlling internal combustion engine, and starting motor having function of outputting signal for controlling internal combustion engine

Info

Publication number: CN103597717A
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: 2014-02-19
Anticipated expiration: 2032-05-31
Also published as: JP2013102667A; WO2012169156A1; CN103597717B; JP5811945B2

Abstract

A rotor (30) is provided with magnets (32N, 32S) having polarities that differ in the direction of rotation. A stator (40) is provided with a plurality of teeth sections (41) in the direction of rotation onto which coils (CU, CV, CW) are wound. Phase sensors (SU, SV, SW) face the magnets (32N, 32S), and output a crank position signal corresponding to the polarity of the rotating magnets (32N, 32S). Some of the magnets (32N, 32S) form heteropolar sections (34, 34k), which are magnetized to a polarity different from that of the magnet (32N, 32S) or are not magnetized to either polarity. The phase sensors (SU, SV, SW) are arranged on the rotation trajectory of the heteropolar sections (34, 34k), which rotate with the rotor (30). When a heteropolar section (34, 34k) has been detected, the phase sensors (SU, SV, SW) outputs a control signal indicating the absolute rotation position of an output shaft (14) of an internal combustion engine.

Description

The electric rotating machine and the starter motor with internal combustion engine control signal output function with internal combustion engine control signal output function

The cross reference of related application

The Japanese patent application JP2012-109036 that the Japanese patent application JP2011-228932 that the Japanese patent application JP2011-126082 submitting in the Japanese patent application JP2011-126081 submitting in the Japanese patent application JP2011-126079 that the application submitted to based on June 6th, 2011, on June 6th, 2011, on June 6th, 2011, on October 18th, 2011 submit to and on May 11st, 2012 submit to, the disclosure of above-mentioned 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, magneto or motor generator), it has output for the function of the internal combustion engine control signal of the igniter of controlling combustion engine etc.

Background technology

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

U phase transducer, V phase transducer and W phase transducer are attached to relative with magnet in stator (opposed position, and output U phase signals, V phase signals and the W phase signals (motor control signal) (referring to Figure 16) corresponding with the polarity of rotary magnet.By control the driving of energising (excitation) timing of U phase coil, V phase coil and W phase coil being controlled to starter motor based on described motor control signal.

Crank axle often turns over one and turns, and crank rotational position sensor detects heteropole magnetic part as described below, so the internal combustion engine control signal shown in output Figure 16.That is to say, in a part for the predetermined magnet among a plurality of magnets, form the heteropole magnetic part that is magnetized to the polarity different from described magnet.More particularly, the upper end of the predetermined S utmost point magnet in the direction perpendicular to direction of rotation forms the heteropole magnetic part that is magnetized to the N utmost point.Then, crank rotational position sensor is arranged on the swing-around trajectory of heteropole magnetic part.Notice, U phase transducer, V phase transducer and W phase transducer are arranged on to 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, at crank axle, only turn between a refunding, S utmost point magnet shown by dashed lines in Figure 16 do not detected, but heteropole magnetic part (the N utmost point) detected.Therefore, can grasp by detecting the position of rotation of heteropole magnetic part based on crank axle 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 transducer, V phase transducer and W phase transducer, the starter motor described in patent documentation 1 has crank rotational position sensor, and has output for controlling fuel and spray and the function of the internal combustion engine control signal of the duration of ignition.

Prior art document

Patent documentation

Patent documentation 1:JP-A-2009-89588

Yet in above-mentioned traditional structure, because crank rotational position sensor and U phase transducer, V phase transducer and W phase transducer arrange dividually, the quantity of transducer is large.This has increased cost, structure has been complicated or reduced reliability.In addition, compare with the pulse spacing repeating between transducer output, from the rotary actuation that starts internal combustion engine to detecting heteropole magnetic part, need crank axle to turn over one and turn.Therefore, from starting to rotate, crank axle complete one turn before, can not grasp absolute rotational position.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 electric rotating machine (rotary machine) with internal combustion engine control signal output function, and wherein the quantity of transducer is reduced.The second object of the present invention is to provide a kind of electric rotating machine with internal combustion engine control signal output function, and it can promptly grasp the absolute rotational position of internal combustion engine output shaft.The 3rd object of the present invention is to provide a kind of starter motor with internal combustion engine control signal output function, and 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 comprises the rotor forming by the magnet of opposed polarity is alternately set along direction of rotation.The electric rotating machine with internal combustion engine control signal output function also comprises the stator by arranging that along direction of rotation a plurality of tooth portion forms, and wherein each tooth portion is wound with coil.The electric rotating machine with internal combustion engine control signal output function comprises phase transducer, and this phase transducer is attached to position relative with magnet in stator and the output crank position signal corresponding with the polarity of rotary magnet.In a part for predetermined magnet among a plurality of magnets, form heteropole part, this heteropole is partly geomagnetic into the polarity different from described predetermined magnet or is not geomagnetic into any polarity.Phase transducer is arranged on the swing-around trajectory of the heteropole part of rotating together with rotor.When phase transducer detects heteropole part, the internal combustion engine control signal of the absolute rotational position of the output shaft of phase transducer output expression internal combustion engine.

According to a further aspect in the invention, the starter motor (starting motor) that has an internal combustion engine control signal output function comprises the rotor forming by the magnet of opposed polarity is alternately set along direction of rotation.The starter motor with internal combustion engine control signal output function also comprises the stator by arranging that along direction of rotation a plurality of tooth portion forms, and wherein in each tooth portion, is wound with coil.The starter motor with internal combustion engine control signal output function also comprises phase transducer, and this phase transducer is attached to position relative with magnet in stator and the output motor control signal corresponding with the polarity of rotary magnet.By the motor control signal based on detecting, control the timing of coil electricity is rotarilyd actuate to the starter motor with internal combustion engine control signal output function, thus the output shaft of rotary actuation internal combustion engine.In a part for predetermined magnet in whole direction of rotation among a plurality of magnets, form heteropole magnetic part, this heteropole magnetic part is geomagnetic into the polarity different from described predetermined magnet.Phase transducer is arranged on the swing-around trajectory of the heteropole magnetic part rotating together with rotor.When phase transducer detects heteropole magnetic part, substitute motor control signal, the output of phase transducer represents the internal combustion engine control signal of the absolute rotational position of output shaft.

According to a further aspect in the invention, the starter motor that has an internal combustion engine control signal output function comprises the rotor forming by the magnet of opposed polarity is alternately set along direction of rotation.The starter motor with internal combustion engine control signal output function also comprises the stator by arranging that along direction of rotation a plurality of tooth portion forms, and wherein each tooth portion is wound with coil.The starter motor with internal combustion engine control signal output function also comprises phase transducer, and this phase transducer is attached to position relative with magnet in stator and the output motor control signal corresponding with the polarity of rotary magnet.The motor control signal detecting by basis is controlled the timing of coil electricity is rotarilyd actuate to the starter motor with internal combustion engine control signal output function, thereby rotarilys actuate the output shaft of internal combustion engine.The starter motor with internal combustion engine control signal output function also comprises the heteropole magnetic part by a part for the predetermined magnet among a plurality of magnets being magnetized to the polarity different from this magnet and forming by magnetize this magnet in whole direction of rotation.The starter motor with internal combustion engine control signal output function also comprises the rotational position sensor on the swing-around trajectory that is arranged on the heteropole magnetic part rotating together with rotor.Rotational position sensor detects the internal combustion engine control signal of the absolute rotational position of heteropole magnetic part and output expression output shaft.Except rotational position sensor, described phase transducer is arranged on described swing-around trajectory.Therefore, when phase transducer detects heteropole magnetic part, substitute motor control signal, the output of phase transducer represents the internal combustion engine control signal of the absolute rotational position of output shaft.

According to a further aspect in the invention, the starter motor that has an internal combustion engine control signal output function comprises the rotor forming by the magnet of opposed polarity is alternately set along direction of rotation.The starter motor with internal combustion engine control signal output function also comprises the stator by arranging that along direction of rotation a plurality of tooth portion forms, and wherein each tooth portion is wound with coil.The starter motor with internal combustion engine control signal output function also comprises phase transducer, and this phase transducer is attached to position relative with magnet in stator and the output motor control signal corresponding with the polarity of rotary magnet.By the motor control signal based on detecting, control the timing of coil electricity is rotarilyd actuate to the starter motor with internal combustion engine control signal output function, thus the output shaft of rotary actuation internal combustion engine.The starter motor with internal combustion engine control signal output function also comprises heteropole magnetic part, and this heteropole magnetic part is formed in the part of the predetermined magnet among a plurality of magnets and is geomagnetic into the polarity different from this magnet.The starter motor with internal combustion engine control signal output function also comprises the rotational position sensor on the swing-around trajectory that is arranged on the heteropole magnetic part rotating together with rotor.Rotational position sensor detects the internal combustion engine control signal of the absolute rotational position of heteropole magnetic part and output expression output shaft.Described heteropole magnetic part is formed in a part for described predetermined magnet along direction of rotation.

Accompanying drawing explanation

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

Fig. 1 shows according to the schematic diagram of the ACG starter (starter motor) of the first embodiment of the present invention;

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

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

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

Fig. 5 is timing (sequential) figure that shows the variation of the combined information NNUM in the first embodiment;

Fig. 6 is the flow chart that is presented at the handling procedure of in the first embodiment, the energising of U, V, W phase coil being controlled;

Fig. 7 is the timing diagram that shows the variation of the combined information NNUM in the second embodiment of the present invention;

Fig. 8 is the timing diagram that shows the variation of the combined information NNUM in the third embodiment of the present invention;

Fig. 9 is the sketch of the attachment location of U phase transducer, V phase transducer and W phase transducer in the explanation fourth embodiment of the present invention;

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

Figure 11 is U phase transducer, V phase transducer and the attachment location of W phase transducer of explanation in the fifth embodiment of the present invention and the sketch of the shape of heteropole magnetic part;

Figure 12 is the attachment location of U phase transducer, V phase transducer and W phase transducer of explanation in the seventh embodiment of the present invention and the sketch of the shape of nonmagnetic portion (space);

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

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

Figure 15 (a) and Figure 15 (b) are the sketches of modification that shows the shape of nonmagnetic portion (space);

Figure 16 is the timing diagram that shows the variation of the internal combustion engine control signal of being exported by traditional ACG starter;

Figure 17 is the sketch of the attachment location of U phase transducer, V phase transducer and W phase transducer in key diagram 3;

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

Figure 19 is the timing diagram that shows the variation of the combined information NNUM in the ninth embodiment of the present invention;

Figure 20 is the timing diagram that shows the variation of the combined information NNUM in the tenth embodiment of the present invention;

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

Figure 22 shows according to the schematic diagram of the ACG starter (starter motor) of the 12nd embodiment of the present invention;

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

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

Figure 25 is the timing diagram that shows the variation of the combined information NNUM in the 12 embodiment;

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

Figure 27 (a) is the sketch of the attachment location of crank rotational position sensor, U phase transducer, V phase transducer and W phase transducer in explanation Figure 26, and Figure 27 (b) is the sketch of the modification shown in Figure 27 (a);

Figure 28 is the timing diagram that shows the variation of the combined information NNUM in the 13 embodiment;

Figure 29 is the timing diagram that shows the variation of the combined information NNUM in the 14 embodiment; And

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

Embodiment

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

(the first embodiment)

According to the starter motor of the present embodiment (electric rotating machine), be applied to being loaded on the engine (internal combustion engine) in sulky vehicle.Fig. 1 shown in the air inlet that injects fuel into engine injector 10 to light air-fuel mixture, in the combustion chamber of engine, emit the igniter 11 of electric spark, control injector 10 and igniter 11 operation electronic control unit (ECU13) and after a while by the ACG starter 20(starter motor of description).

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

ACG starter 20 has the U phase transducer SU of the U phase signals of output expression U phase electrical degree, the V phase transducer SV of the V phase signals of output expression V phase electrical degree and the W phase transducer SW that output represents the W phase signals of W phase electrical degree.Notice, at these U, V, W phase transducer SU in SW, about U phase transducer SU(phase transducer), it also has the function of crank position signal (the reference position signal of internal combustion engine control signal) that output represents the absolute rotational position of crank axle 14.

ECU13 is based on controlling the energising timing to U phase coil CU, the V phase coil CV of ACG starter 20 and W phase coil CW from described U, V, W phase transducer SU to U, V, the W phase signals (motor control signal) of SW output, to implement motor, drive control, thereby rotarily actuate ACG starter 20 along the direction of rotation of expectation.

Solar term transducer 15 detects the opening angle of air throttle and controls inspiratory capacity.The negative pressure that inspiratory pressure sensor 16 detects in air entry.ECU13 based on for example from the crank position signal of ACG starter 20 output, from the throttle opening angle of solar term transducer 15 outputs with from the signal controlling injector 10 of negative pressure and the operation of igniter 11 of inspiratory pressure sensor 16 outputs.

More specifically, the rotational speed N E of ECU13 based on crank position calculated signals crank axle 14, and the negative pressure PM calculation engine based on being obtained by inspiratory pressure sensor 16 is loaded.In addition target emitted dose, target injecting time and the target ignition time of ECU based on these NE and PM computing fuel.So, the absolute rotational position of U, V, W phase signals and the crank position calculated signals crank axle 14 of ECU13 based on exporting to SW from U, V, W phase transducer SU, then control the operation of injector 10, the absolute rotational position calculating with reference is at target injecting time burner oil, and the operation of control point firearm 11, 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 is the sketch while observing along III in Fig. 2.

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

Stator 40 has above-mentioned U phase coil CU, V phase coil CV and W phase coil CW, U, V, W phase transducer SU to SW and iron core 42, forms the tooth portion 41 that is wound around described coil on it in this iron core.Along direction of rotation, arrange a plurality of tooth portion 41.U phase coil CU, V phase coil CV and W phase coil CW are sequentially wrapped in each in tooth portion 41.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 transducer SU to SW in the position relative with S utmost point magnet 32S with N utmost point magnet 32N.In this configuration, transducer detects N utmost point magnet 32N that the rotation by rotor 30 causes and the heat treatment of S utmost point magnet 32S.Notice, as U, V, W phase transducer SU, to SW, adopt hole ICs.Therefore,, even when rotor 30 does not rotate, can export the detection signal corresponding with the polarity of relative magnet.

U, V, W phase transducer SU are attached to respectively the diverse location place in the direction of rotation of rotor to SW.More specifically, U, V, W phase transducer SU are arranged on to SW in the different gap 41a among the gap 41a of a plurality of tooth portion 41.In the example of Fig. 4 (a), U phase transducer SU, V phase transducer SV and W phase transducer SW are sequentially arranged in the adjacent segment of described a plurality of gap 41a.Therefore the mechanical angle that, each U, V, W phase transducer SU spend to SW skew 20.

As shown in Figure 4 (a), at the magnet 32S(A of the predetermined utmost point as a plurality of

magnet

32S and 32N) a part (the S utmost point magnet 32S in the example of Fig. 4 (a)) in form following by the heteropole magnetic part 34 of description.That is to say, only the dashed area in Fig. 4 (a) is geomagnetic into the polarity (the N utmost point) that is different from S utmost point magnet 32S.This heteropole magnetic part 34 is formed on predetermined magnet 32S(A along the direction (vertical direction in Fig. 4 (a)) of the rotation of rotor) end, and form make this predetermined magnet 32S(A) polarity be present in the both sides of heteropole magnetic part 34.That is to say predetermined magnet 32S(A) upper end edge direction of rotation be divided into three parts, and middle body is formed heteropole magnetic part 34.

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

In the present embodiment, transducer SU is configured to export a low signal (binary number " 0 ") when it detects the N utmost point to SW, and when it detects the S utmost point, exports 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 W phase signals are converted into low or high (referring to Fig. 5) when the rotation of every 30 degree of rotor 30.Therefore, 360 ° of the respective electrical angles of corresponding U, V, W phase are corresponding with 60 ° of the anglecs of rotation (mechanical angle) of crank axle 14.Notice, when 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 transducer SU, in any in SW, there is low/High variation.

Notice, as shown in Figure 4 (a), in the situation that there is nonpolarity member 32a between N utmost point magnet 32N and S utmost point magnet 32S, when because this member 32a and transducer SU are relative and polarity chron can not be detected to SW, at the described signal of supposition, be for example, to process in the situation of the previous setting signal (, low signal) between low signal and high signal.

Notice, much less, can adopt wherein N utmost point magnet 32N and S utmost point magnet 32S to be adjacent to each other so that there is not the rotor 30 of above-mentioned member 32a.In addition, can so arrange, so that extremely form by a magnet block being magnetized to the N utmost point and S the rotor that wherein a plurality of N utmost point magnet 32N and S utmost point magnet 32S are formed by a magnet block.Notice, can for example, by using a plurality of (, four) magnet block or can be by form the rotor of this situation by a magnet block.

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

More specifically, by 3 bits, converting decimal numeral numerical value to is described combined information NNUM, wherein utilize first of binary number representation binary expression formula of U phase signals, utilize the binary number representation binary expression formula of V phase signals second, utilize the 3rd of binary number representation binary expression formula of W phase signals.Utilize ECU13 to calculate this numerical value of N NUM.For example, as shown in leftmost hurdle, when U, V, W phase signals are respectively " 1 ", " 0 " and " 1 ", NNUM value is " 5 ".

Reference character ES in accompanying drawing represents to change into by detecting heteropole magnetic part 34 part of low signal.This signal section is corresponding to " internal combustion engine control signal ", and the other parts of signal except reference character ES are corresponding to " motor control signal ".Except wherein there is the part of internal combustion engine control signal ES, 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 detected, NNUM value is " 0 ", yet, except detection time ES At All Other Times, NNUM value is not " 0 ".Therefore,, when NNUM value being detected for " 0 ", ECU13 calculates the absolute rotational position of crank axle 14 with reference to degree in crank angle.When grasping described absolute rotational position, can specify the rising of (judgement) corresponding U, V, W phase signals or the position relationship between decline timing (that is, NNUM upgrades timing) and the once rotation (circulation) of 4 two-stroke engines.

For example, the time tb when occurring that NNUM value " 1 " appears in NNUM value " 0 " afterwards for the second time can be appointed as to the time that engine piston has arrived bottom dead centre BDC.Notice, the time that can differentiate (stroke judgement) above-mentioned bottom dead centre BDC by reference to the value of inspiratory pressure sensor 16 is instroke or compression travel.Utilize this configuration, can upgrade timing based on NNUM and control, with by fuel injection time or be set as the object time with respect to absolute rotational position the duration of ignition.

In addition, the NNUM value of ECU13 based on current time place specified next NNUM value (specified device), and determines the energising Control the content to U phase coil CU, V phase coil CV and W phase coil CW according to the next NNUM value of appointment.For example, when 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 with the tooth portion 41 of U phase coil CU in shift to the timing of the position (low) relative with N utmost point magnet 32N from the position (height) relative with S utmost point magnet 32S.Therefore, the timing in the ON/OFF of U phase coil CU energising is changed.

Like this, ECU13 switches on to U phase coil CU based on NNUM value " 3 " control that represents the NNUM value " 4 " that U phase signals rises or represent to decline whether having been detected.Similarly, ECU controls V phase coil CV and W phase coil CW energising based on NNUM value.Notice, for NNUM value " 0 ", contrary with coil motor driver CU, CV and CW, to be worth " 1 ", at U, V, W phase coil CU, to CW, implement energising control.

In addition, whether the record detection ACG starter 20 of ECU13 based on NNUM value rotates backward.For example, when it rotates forward, NNUM value changes by as above 5 → 1 → 3 → 2 → 6 → 4 order.On the other hand, when it rotates backward, NNUM value changes by 4 → 6 → 2 → 3 → 1 → 5 order.

In order to utilize ACG starter 20 to pilot engine, when the starting of position not long ago of the TDC of engine piston in compression travel, because the required driving torque of ACG starter 20 increases because of decrement, worry that motor starting characteristic reduces.Therefore, may have the situation that after implementing, pendulum is controlled, wherein, before engine start, crank axle 14 is reversed and rotates and be set in the piston position with good startability.Like this, at ACG starter 20, be reversed in the situation of driving, when NNUM value is for example 4 at this moment, next NNUM value be appointed as to 6, and control accordingly the energising timing to CW to U, V, W phase coil CU with described designated value.

Fig. 6 shows to utilize the microcomputer 13a(of ECU13 referring to Fig. 1) implement the flow chart to the handling procedure of the energising control of CW to U as above, V, W phase coil CU.With predetermined period (for example,, by the CPU of above-mentioned microcomputer 13a or the cycle calculating by predetermined crank angle degree), repeat to implement described processing.Otherwise, when rotation stops, with above-mentioned predetermined period, processing, and by each edge as described below, detect and process when rotating.That is to say, the microcomputer 13a shown in Fig. 1 has the capturing function of the timing of catching the variation of exporting and input signal (U shown in Fig. 5, V, W phase signals) wherein from corresponding transducer SU to SW.In brief, it detects rising and the decline timing (edge detection timing) of U, V, W phase signals.So, when each edge detects, implement the processing in Fig. 6.

First, at the step S10 place shown in Fig. 6, from U, V, W phase transducer SU, to SW, obtain U phase signals, V phase signals and W phase signals respectively.At next step S20(combined information generating apparatus) locate, based on U, V, W phase signals, calculate the combined information NNUM of the combination that represents these signals.At next step S30 place, based on NNUM value, calculate next NNUM value.More specifically, the above-mentioned rotation 5 → 1 (0) → 3 → 2 → 6 → 4 based on when rotating forward, when current NNUM value is for example " 5 ", calculates next NNUM value " 1 ".Notice, when current NNUM value is " 0 ", calculate next NNUM value " 3 ".

At next step S40 place, the next NNUM value based on calculating at step S30 place, implements U, V, W phase coil CU to control to the energising of CW.By this, process, ACG starter 20 is implemented motor with the direction of rotation of being scheduled to and is driven.

For example, about the energising to U phase coil CU, control, when next NNUM value is " 2 " or " 5 ", its value that means the U phase signals that forms next NNUM value changes from forming the value of the U phase signals of current NNUM value.Therefore,, when next NNUM value is designated as " 2 " or " 5 ", 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 to V phase coil CV and W phase coil CW, control, when next NNUM value is designated as " 3 " or " 4 ", energising Control the content to V phase coil CV is changed, and when next NNUM value is designated as " 6 " or " 1 ", the energising Control the content of W phase coil CW is changed.

At next step S50 place, determine whether and occur NNUM value " 0 " and whether carried out as described above the detection of the absolute rotational position of crank axle 14.When having carried out detection (S50: be), processing proceeds to next step S60, at this step S60 place, absolute rotational position based on detecting and U, V, W phase signals (or NNUM value), control the operation of injector 10 and igniter 11, so that fuel injection time and the duration of ignition are the object time.Notice, when not carrying out the detection of absolute rotational position (S50: no), inoperation injector 10 and igniter 11, and processing enters into holding state.

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

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

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

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

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

(2) can not only according to the height of U phase signals, debate the low signal of other internal combustion engine control signal ES and the low signal of motor control signal.Particularly, when wherein not obtaining the ACG starter 20 of U phase signals record and stop or when the driving of ACG starter 20 starts, can not specify the low state of U phase signals whether by internal combustion engine control signal ES, to be caused.On the other hand, in the present embodiment, because the combined information NNUM of U phase signals, V phase signals and W phase signals is calculated, even when stopping ACG starter 20, based on NNUM value, when NNUM value is " 0 ", specify the low state of U phase signals now to be caused by internal combustion engine control signal ES.Therefore, can promptly grasp the required absolute rotational position of engine control.

Particularly, in thering is the vehicle of idling-stop control system, when engine automatic restart, because promptly grasp as mentioned above absolute rotational position, can promptly start the driving of injector 10 and igniter 11, and be therefore preferred.

(3) upper end edge direction of rotation predetermined magnet 32S(A) is divided into three parts, and in middle body, forms heteropole magnetic part 34.Therefore, compare with its traditional structure being formed in whole direction of rotation, can reduce predetermined magnet 32S(A on above-below direction) and heteropole magnetic part 34 between the length of magnet short-cut path.Therefore, can utilize ACG starter 20 to suppress reducing of motor actuating force and utilize ACG starter 20 to suppress the minimizing of energy output.

(4) edge 32b because heteropole magnetic part 34 is formed in above-mentioned three middle bodies of dividing part, predetermined magnet 32S(A in addition) can be as S utmost point magnet 32S but not the edge of heteropole magnet part 34.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 transducer SU) and edge 32b(referring to Fig. 5) time conversion timing.Therefore, can control accurately the timing that the energising of U phase coil CU is controlled.

(5) heteropole magnetic part 34 and with predetermined magnet 32S(A) polarity mismatch between relative tooth portion 41 is inevitable.Yet, according to the present embodiment, because being formed on above-mentioned three, divides in middle body partly heteropole magnetic part 34, with predetermined magnet 32S(A) upper end situation about being formed in heteropole magnetic part 34 in whole direction of rotation compare, can reduce the length of the heteropole magnetic part 34 in direction of rotation.Therefore, with respect to predetermined magnet 32S(A), can reduce the area occupied of heteropole magnetic part 34, and the output that suppresses the ACG starter 20 that causes according to polarity mismatch reduces.

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

(7) notice, exist so and worry, due to the output of the internal combustion engine control signal ES from U phase transducer SU, Control the content and actual electrical angle mismatching that the energising of U phase coil CU is controlled, and ACG starter 20 rotates backward.On the other hand, in the present embodiment, because drive the transmission of torque while starting to be blocked from the motor of ACG starter 20, until rotational speed N E becomes, be equal to or higher than predetermined value, can solve above-mentioned worry.

Rotor 30 and the crank axle 14 of ACG starter 20 are fixed, so that rotation integratedly under pivot state consistent with each other, and between rotor 30 and crank axle 14, do not have the Poewr transmission mechanism of belt for example or gear.Therefore,, when when being arranged on the U phase transducer SU output crank position signalling ACG starter 20, can avoid the rotatable phase of crank axle 14 that caused by the backlash of gear or the expansion of belt and the skew between the rotatable phase of rotor 30.Therefore,, by utilizing U phase transducer SU to calculate the absolute rotational position of crank axle 14, can guarantee enough computational accuracies.

(8) be arranged so that when internal combustion engine control signal ES being detected detection time, there will not be At All Other Times NNUM value " 0 " except ES.Therefore, because the NNUM value based on current time place detects absolute rotational position, can be in the situation that promptly grasp absolute rotational position without the record of waiting for accumulation NNUM value.

Notice, due to from U phase transducer SU output internal combustion engine control signal ES, in some cases, can not specify next U phase sensor signal from the U phase sensor signal of current time.Yet, even, under this situation, can specify next NNUM value to specify next U phase sensor signal by the NNUM value based on current time place in some cases.In the present embodiment with this viewpoint structure, because determine the energising Control the content to U phase coil CU according to the next NNUM value of the NNUM value appointment based on current time place, can reduce and wherein can not specify the situation of next U phase sensor signal and determine energising Control the content.

(10) rising of the crank position signal shown in Figure 16 or decline cycle are the time that crank axle 14 turns over the occupied anglec of rotation (30 °) of magnet 32S, a 32N.On the other hand, because the NNUM update cycle is the combination of corresponding U, V, W phase signals, it turns over 1/3 rotation time of the above-mentioned anglec of rotation (30 °) for crank axle 14.That is to say, the NNUM update cycle is shorter than the cycle of the crank position signal in Figure 16.Therefore, compare with the situation that the crank position signal based on shown in Figure 16 is implemented to control, according to the rising based on corresponding U, V, W phase signals or decline timing (NNUM upgrades timing), control the present embodiment of fuel injection time and the duration of ignition, be 1/3(10 °/30 ° basic time that is used for controlling), 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 transducer SU, in SW, only U phase transducer SU is arranged on the swing-around trajectory 34a of heteropole magnetic part 34.On the other hand, in the present embodiment, U phase transducer SU and V phase transducer SV are arranged on swing-around trajectory 34a.Result is that 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, when NNUM value is " 0 ", specify from U phase transducer output internal combustion engine control signal ES.Yet in the current embodiment shown in Fig. 7, when NNUM value is " 0 ", owing to can not determine that internal combustion engine control signal ES is from U phase transducer SU or V phase transducer SV output, existence can not calculate the worry of absolute rotational position.

Therefore, in the present embodiment, the recorded information based on representing the record of combined information NNUM, specifies the transducer of output internal combustion engine control signal ES, and calculates absolute rotational position.Notice, the recorded information in the present embodiment refers to two continuous NNUM values, yet three or more continuous NNUM values can be recorded information.

More specifically, in the situation that NNUM value is " 0 ", when previous NNUM value is " 5 ", be assigned therein as from the internal combustion engine control signal ES of U phase transducer SU output.When previous NNUM value is " 3 ", be assigned therein as from the internal combustion engine control signal ES of V phase transducer SV output.Notice, in the counter-rotational situation of ACG starter 20, when previous NNUM value is " 3 ", be assigned therein as from the internal combustion engine control signal ES of U phase transducer SU output, and when previous NNUM is worth as " 6 ", be assigned therein as from the internal combustion engine control signal of V phase transducer SV output.Then, the appearance timing of the result based on these appointments and internal combustion engine control signal ES, calculates absolute rotational position.

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

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

Then, by describing, U, V, W phase coil CU are controlled to the energising of CW.After calculating absolute rotational position by said method, suppose that the NNUM value that is converted to " 5 → 0 → 3 → 0 → 6 " by internal combustion engine control signal ES has been converted into " 5 → 1 → 3 → 2 → 6 " as shown in the bracket of Fig. 7, and to U, V, W phase coil CU to the CW control of switching on, coil CU, the CV of tooth portion 41 are consistent with polarity phase place with CW, thereby can rotation drive motor.

On the other hand, while stopping, when NNUM value is " 0 ", next NNUM value can not be appointed as to " 3 " or " 6 " before calculating absolute rotational position.Therefore, in the present embodiment, suppose arbitrary value (for example, " 3 ") in " 3 " or " 6 " for next NNUM value and to phase coil CU to the CW control of switching on.So, even when not starting rotation and NNUM value through ACG starter 20 after the scheduled time while not changing, suppose that next NNUM value is not this arbitrary value " 3 " but another value " 6 ", and to U, V, W phase coil CU to the CW control of switching on.

As described in detail above, according to the present embodiment, can obtain the similar effect with above-mentioned the first embodiment, and can obtain following effect.That is to say, in the first embodiment, when crank axle 14 turns over one while turning, internal combustion engine control signal ES occurs once, and according to the present embodiment, it occurs twice.Therefore, because crank axle 14 after starting at ACG starter 20 to drive completes one, there is internal combustion engine control signal ES before turning, can reduce for calculating the required time of absolute rotational position based on internal combustion engine control signal ES.Therefore, can promptly start the driving of injector 10 and igniter 11.In addition, utilize this configuration, because stage generation utilizes the driving torque of engine and reduced required motor driving torque in early days, can reduce the size of ACG starter 20.

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

In addition, in the present embodiment, for the energising in during the rotary actuation of calculating that does not complete absolute rotational position, control (motor drives and controls), because control as experimental field sequentially implementing energising with the candidate value " 3 " of next NNUM value and " 6 ", even can during above-mentioned rotary actuation, implement motor and drive and control.

(the 3rd embodiment)

In above-mentioned the second embodiment, at three U, V, W phase transducer SU, in SW, U phase transducer SU and V phase transducer 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 transducer SU are all arranged on swing-around trajectory 34a to SW.Result is that identical with the situation of U phase signals and V phase signals, W phase signals comprises 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, when NNUM value is " 0 ", record based on combined information NNUM specify U, V, W phase transducer SU in SW from wherein exporting the transducer of internal combustion engine control signal ES.In addition as the situation of above-mentioned the second embodiment, can be high or low and the above-mentioned appointment of edge detection enforcement based on determine sensor signal.Then, the result based on appointment, calculates absolute rotational position.

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

Next, by describing, U, V, W phase coil CU are controlled to the energising of CW.After calculating absolute rotational position by said method, suppose that the NNUM value that changes " 5 → 0 → 3 → 0 → 6 → 0 → 5 → 1 " into by internal combustion engine control signal ES is the NNUM value relative with tooth portion coil,, as shown in the bracket of Fig. 8, change the value of " 5 → 1 → 3 → 2 → 6 → 4 → 5 → 1 " into, and 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 in the situation of " 0 " therein, next NNUM value can not be appointed as to " 3 ", " 6 " or " 5 ".Therefore, in the present embodiment, suppose that the arbitrary value (for example, " 3 ") in " 3 ", " 6 " and " 5 " is next NNUM value, and to U, V, W phase coil CU to the CW control of switching on.Then, when even not starting rotation and NNUM value through ACG starter 20 after the scheduled time while not changing, suppose that next NNUM value is not described arbitrary value " 3 " but another value " 6 " or " 5 ".Then, suppose that the arbitrary value (for example, " 6 ") in " 6 " or " 5 " is next NNUM value, and the control of switching on.Result is, when even when not starting to rotate through ACG starter 20 after the scheduled time and NNUM value does not change, suppose that next NNUM value is not described arbitrary value " 6 " but remaining value " 5 ", and to U, V, W phase coil CU to the CW control of switching on.Notice, when actual NNUM value becomes from " 0 " value that is different from predicted value, the NNUM value based on described reality is implemented to drive.

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

(the 4th embodiment)

In above-mentioned the 3rd embodiment, three U, V, W phase transducer SU are sequentially arranged on to SW in the adjacent segment 41a among the gap 41a of a plurality of tooth portion 41.On the other hand, in the present embodiment, as shown in Figure 9, three U, V, W phase transducer SU are not arranged in adjacent segment 41a to SW, but arrange dispersedly.In the example of Fig. 9, these phase transducers arrange dispersedly, so that the angle between U phase transducer SU and V phase transducer SV and the angle between V phase transducer SV and W phase transducer SW are 140 °.

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

Notice, in the present embodiment shown in Figure 10, as the situation of above-mentioned the 3rd embodiment, when NNUM value is " 0 ", record based on combined information NNUM specify U, V, W phase transducer SU in SW from wherein exporting a phase transducer of internal combustion engine control signal ES.Then, the result based on appointment, calculates absolute rotational position.

Next, by describing, U, V, W phase coil CU are controlled to the energising of CW.After calculating absolute rotational position by said method, suppose by internal combustion engine control signal ES and change " 5 → 0 → 3 ", " 3 → 0 → 6 into " and the NNUM value of " 6 → 0 → 5 " change " 5 → 1 → 3 ", " 3 → 2 → 6 " and " 6 → 4 → 5 " as shown in the bracket of Figure 10 into, and implement the energising control to CW to U, V, W phase coil CU.

On the other hand, before calculating absolute rotational position, when NNUM value is " 0 ", next NNUM value can not be appointed as to " 3 ", " 6 " or " 5 ".Therefore, in the present embodiment, as the situation of above-mentioned the 3rd embodiment, suppose that the arbitrary value (for example, " 3 ") in " 3 ", " 6 " or " 5 " is next NNUM value and implements energising and control.When not changing through NNUM value after the scheduled time and ACG starter 20 does not start to rotate, suppose that the arbitrary value (for example, " 6 ") in other value " 6 " and " 5 " is next NNUM value, and implement energising and control.When utilizing this configuration not start to rotate, suppose that next NNUM value is not described arbitrary value " 6 " but remaining value " 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 transducer SU arrange dispersedly to SW, can reduce to occur the time interval of internal combustion engine control signal ES.Therefore, compare with above-mentioned the 3rd embodiment, can further reduce to start to be driven into from ACG starter 20 and occur the required time of internal combustion engine control signal ES.Therefore, can reduce based on internal combustion engine control signal ES and calculate the required time of absolute rotational position, and can promote that injector 10 and igniter 11 start rapidly to drive.

Notice, in the situation that by U, V, W phase transducer SU to two in the SW swing-around trajectory 34a that are set to heteropole magnetic 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 forms heteropole magnetic part 34.On the other hand, in the present embodiment, saved described upper end has been divided into three parts.As shown in the dashed area in Figure 11, predetermined magnet 32S(A) whole upper end forms heteropole magnetic part 34.

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

Then, except three U, V, W phase transducer SU are to SW, by the signal in conjunction with crank rotational position sensor SE, produce combined information NNUM.Based on NNUM value, calculate absolute rotational position, and implement U, V, W phase coil CU to control to the energising of CW.

As mentioned above, according to the present embodiment, the situation that forms heteropole magnetic part 34 with the middle body of three parts that are wherein divided is as shown in Figure 4 (a) compared, because heteropole magnetic part 34 is formed at predetermined magnet 32S(A in whole direction of rotation) upper, can simplify predetermined magnet 32S(A) in the magnetization of heteropole magnetic part 34.

In addition, compare with the situation that crank rotational position sensor SE is wherein only set, due to crank rotational position sensor SE and two transducers of U phase transducer SU being set on the swing-around trajectory 34a at heteropole magnetic part 34, can reducing to start to be driven into from ACG starter 20 and occur the required time of internal combustion engine control signal ES.Therefore, can reduce based on internal combustion engine control signal ES and calculate the required time of absolute rotational position, and can promote that injector 10 and igniter 11 start rapidly to drive.

(the 6th embodiment)

Existence rotation stop position of crank axle 14 when engine stop is arranged in the high likelihood of the preset range (for example,, from the about BTDC150 ° of scope to top dead-centre TDC) of compression travel.This is because exist piston in the up-stroke of piston of compression travel to sentence in the seldom NE time stopping not long ago the high likelihood that compression load stops.Therefore, conventionally can wait grasp to stop estimating position by maintenance.

Notice, crank axle 14 is stopping under the state that estimating position stops the rotation therein, when heteropole magnetic part 34 is when with phase transducer (the U phase transducer SU in the U phase transducer SU in the example of Fig. 5 and the example of Fig. 7 or V phase transducer SV) relative position or the position of slightly delaying from described relative position, export internal combustion engine control signal during not grasping therein the rotary actuation of absolute rotational position.In this case, probably can not control Content Implementation motor control with suitable energising.

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

On the other hand, under crank axle 14 is stopping state that estimating position stopping the rotation, when phase transducer being set with heteropole magnetic part 34 so that heteropole magnetic part 34, in the position relative with phase transducer or when delaying the position of scheduled volume from the position relative with phase transducer, is exported immediately internal combustion engine control signal after engine starts to rotate.Therefore, can promptly calculate absolute rotational position based on internal combustion engine control signal, and promote to grasp the minimizing of required time of described absolute rotational position.

(the 7th embodiment)

By utilizing the 34 couples of Figure 12 of heteropole magnetic part shown in nonmagnetic portion (space 34k) replacement Fig. 4 and the present embodiment shown in Figure 13 to carry out 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.Notice, Figure 13 shows to be arranged on adjacent to each other housing 31(referring to Fig. 1) interior perimeter surface on magnet 32N and the perspective view of 32S.As shown in Figure 13, space 34k has the shape through the rotating diameter direction shaping of rotor 30.

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

Notice, form therein in the present embodiment of space 34k, at three transducer SU, in SW, described three transducer SU can be arranged on swing-around trajectory 34a to two in SW.For example, the in the situation that of U phase transducer SU and V phase transducer SV, internal combustion engine control signal ES is identical with the content in Fig. 7 with combined information NNUM.In addition in the present embodiment, all three U, V, W phase transducer SU can be 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, in the present embodiment, when three U, V, W phase sensor SU are to SW as shown in Figure 9 during 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, because internal combustion engine control signal ES is identical with the information in the various embodiments described above with combined information NNUM, obtain and the similar effect of the various embodiments described above.In addition,, by replacing heteropole magnetic part 34 with nonmagnetic portion (space 34k), 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 magnetic part 34 is formed on predetermined magnet 32S(A) in.On the other hand, Figure 14 (b) shows according to the sketch of the rotor 30 of the present embodiment and stator 40.Space 34k is formed on predetermined magnet 32S(A) in.In described figure (a) and (b) any, from predetermined magnet 32S(A) to be connected in abutting connection with magnet 32N(B appear in relative tooth portion 41) and magnetic line of force J1 (C), and described magnetic line of force J1 causes motor actuating force or electric power.Notice, in housing 31, the part relative with S utmost point magnet 32S has the polarity of the N utmost point, and the part relative with N utmost point magnet 32N has the polarity of the S utmost point.

Yet, in the situation that there is Figure 14 (a) of heteropole magnetic part 34, except this magnetic line of force J1, occur through tooth portion 41, being connected to magnet 32S(A from heteropole magnetic part 34) magnetic line of force J2, thereby cause magnet short-cut path.On the other hand, removed therein in the situation of Figure 14 (b) of heteropole magnetic part 34, although occurred being connected to magnet 32S(A from housing 31 through tooth portion 41) magnetic line of force J3, thereby caused magnet short-cut path, the short circuit paths of magnetic line of force J3 is longer than the short circuit paths of magnetic line of force J2.Therefore, reduced magnet short-cut path amount, and can reduce owing to forming motor actuating force that heteropole

part

34 and 34k cause and the decline of electric power.

(the 8th embodiment)

As shown in Figure 17, in the part S utmost point magnet 32S in the example of the predetermined magnet 32S(Figure 17 among a plurality of

magnet

32S and 32N), form heteropole magnetic part 34 as described below.That is to say, only the dashed area shown in Figure 17 is geomagnetic into the polarity (the N utmost point) different from S utmost point magnet 32S.Heteropole magnetic part 34 is formed on the end of predetermined magnet 32S and is formed along the direction (vertical direction in Figure 17) of rotor axis and makes to exist whole direction of rotation (horizontal direction in Figure 17) is upper.

V phase transducer SV and W phase transducer SW are arranged on identical position on rotor axis direction (vertical direction in Figure 17), and U phase transducer SU is arranged on the position that is different from V phase transducer SV and W phase transducer SW in rotation direction.In this configuration, it is upper that U phase transducer SU is positioned at the swing-around trajectory 34a of heteropole magnetic part 34, and V phase transducer SV and W phase transducer SW are positioned at the position beyond swing-around trajectory 34a.

In the present embodiment, it is so set, so that when transducer SU detects the N utmost point to SW, and output low signal (binary number " 0 "), and when the S utmost point being detected, export high signal (binary number " 1 ").Because the quantity of

magnet

32S and 32N is the 12(12 utmost point), corresponding U phase signals, V phase signals and W phase signals often turn over 30 at rotor 30 and are converted into low or high (referring to Figure 18) while spending.Therefore, 360 ° of electrical degrees of corresponding U, V, W phase are corresponding to 60 ° of anglecs of rotation (mechanical angle) of crank axle 14.Notice, when heteropole magnetic part 34 being detected, U phase signals also changes into low.In addition,, when rotor 30 often turns over 10 while spending, U, V, W phase transducer SU change into low or high to any in SW.

As shown in Figure 17, between N utmost point magnet 32N and S utmost point magnet 32S, exist therein in the situation of the member 32a that there is no polarity, when polarity chron can not be detected in the situation that described member 32a and transducer SU are relative to SW, for example, under being the situation of (, low signal) predetermined in low signal and high signal, the described signal of supposition implements to process.

Notice, much less, can adopt wherein N utmost point magnet 32N and S utmost point magnet 32S to be adjacent to each other so that do not there is the rotor 30 of above-mentioned member 32a between them.In addition, can adopt wherein and by a magnet block, be formed the rotor of a plurality of N utmost point magnet 32N and S utmost point magnet 32S by a magnet block being magnetized to the N utmost point and the S utmost point.Notice, in the rotor of this situation, can use a plurality of (for example, four) magnet block or can use a magnet block.

Figure 18 is the timing diagram of the binary expression formula, U, V, W phase signals, ignition signal, injection signal and the engine stroke that sequentially demonstrate degree in crank angle, combined information NNUM, U, V, W phase signals from top.Combined information NNUM refers to represent the virtual signal of the combination of U phase signals, V phase signals and the W phase signals of output simultaneously, and in the present embodiment, the decimal system numerical value that it calculates for the combination of the binary expression formula by U, V, W phase signals.

Reference character ES in accompanying drawing represents to change into by heteropole magnetic part 34 being detected the part of low signal.This part signal is corresponding to " internal combustion engine control signal ", and the other parts of signal except reference mark ES are corresponding to " motor control signal ".Except wherein there is the part of internal combustion engine control signal ES, 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 becomes 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 signal ES being detected, NNUM value becomes " 4 " → " 0 " → " 2 ".Yet, except ES detection time At All Other Times, NNUM value does not become " 0 ".Therefore,, when the NNUM value " 0 " relevant with reference character tb being detected, ECU13 calculates the absolute rotational position of crank axle 14 according to degree in crank angle.As long as can grasp absolute rotational position, just can specify the rising of corresponding U, V, W phase signals or decline timing (that is, NNUM upgrades timing) and 4 two-stroke engines 1 to turn over 1 position relationship between turning.

For example, the time td when occurring that NNUM value " 1 " appears in NNUM value " 0 " afterwards for the second time can be appointed as to the time that engine piston has arrived bottom dead centre BDC.Notice, can differentiate (stroke judgement) above-mentioned bottom dead centre BDC time by reference to the value of inspiratory pressure sensor 16 is in instroke or expansion stroke.Utilizing this configuration, can be the object time based on NNUM renewal timing by fuel injection time and the control duration of ignition with reference to absolute rotational position.

Notice, NNUM value is in the situation of " 4 " therein, when previous NNUM value is " 4 ", is assigned therein as the value of the engine control signal as represented by reference character ta.On the other hand, when previous NNUM value is " 6 ", be assigned therein as the value of the motor control signal being represented by reference character tf1.Notice, in the counter-rotational situation of ACG starter 20, when previous NNUM value is " 0 ", is assigned therein as the value of engine control signal ES, and when it is " 5 ", is assigned therein as the value of motor control signal therein.Then, absolute rotational position is calculated in the appearance timing of the result based on these appointments and engine control signal ES.

In addition, the NNUM value of ECU13 based on current time place specified next NNUM value (specified device), and the next NNUM value based on appointment is determined the energising Control the content to U phase coil CU, V phase coil CV and W phase coil CW.For example, when current NNUM value is " 3 ", can the rotation based on previous next NNUM value be appointed as to " 2 ".That is to say, on it, be wound with the tooth portion 41 of U phase coil CU in shift to the timing of the position (low) relative with N utmost point magnet 32N from the position (height) relative with S utmost point magnet 32S.Therefore, its timing in the ON/OFF of U phase coil CU energising is changed.

Like this, ECU13 switches on to U phase coil CU based on NNUM value " 3 " control that represents the NNUM value " 4 " that U phase signals rises or represent to decline whether having been detected.Similarly, ECU controls V phase coil CV and W phase coil CW energising based on NNUM value.Notice, for NNUM value " 0 ", contrary with coil motor driver CU, CV and CW, to be worth " 1 ", at U, V, W phase coil CU, to CW, implement energising control.In addition, for the NNUM value " 4 " being represented by reference character ta, suppose that it is " 5 ", and for the NNUM value " 2 " being represented by reference character tc, suppose that it is " 3 ", and implement U, V, W phase coil CU to control to the energising of CW.

In addition, whether the record detection ACG starter 20 of ECU13 based on NNUM value rotates backward.For example, when it rotates forward, NNUM value changes by order 5 → 1 → 3 → 2 → 6 → 4 as above.On the other hand, when it rotates backward, NNUM value changes by 4 → 6 → 2 → 3 → 1 → 5 order.

In order to utilize ACG starter 20 to pilot engine, when engine piston is in compression travel during from the starting of position not long ago of TDC, because the required driving torque of ACG starter 20 increases because of decrement, worry that the starting performance of engine is lowered.Therefore, after implementing in some cases, pendulum is controlled, and, before engine start, crank axle 14 is rotated backward, and is set in the piston position with good startability.Like this, in the situation that ACG starter 20 is reversed driving, when NNUM value is for example 4 at this moment, next NNUM value is appointed as to 6, and as one man controls the energising timing to CW to U, V, W phase coil CU with described designated value.

In the present embodiment, in the step S10 of Fig. 6, based on when rotating forward as 5 (4) → 1 (0) → 3 (2) → 2 → 6 → 4 above-mentioned rotation, in current NNUM value, calculating previous NNUM value during for " 5 " is " 1 ".Notice, when current NNUM value is " 0 ", calculate next NNUM value for " 3 ".In addition,, when previous NNUM value is " 4 " and current NNUM value during for " 4 ", next NNUM value is " 1 ".In addition when previous NNUM value calculates next NNUM value for " 0 " and current NNUM value during for " 2 ", be " 2 ".

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

(the 9th embodiment)

In above-mentioned the first embodiment, at three U, V, W phase transducer SU, in SW, only U phase transducer SU is arranged on the swing-around trajectory 34a of heteropole magnetic part 34.On the other hand, in the present embodiment, U phase transducer SU and V phase transducer SV are arranged on swing-around trajectory 34a.Result is that, 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, when NNUM value is " 0 ", specify from U phase transducer SU output internal combustion engine control signal ES.Yet, in the current embodiment shown in Figure 19, when NNUM value is " 0 " (referring to reference character tf, tg and th), owing to can not specifying internal combustion engine control signal ES to export from U phase transducer SU or from V phase transducer SV, existence can not calculate the worry of absolute rotational position.

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

Next, by describing, U, V, W phase coil CU are controlled to the energising of CW.After calculating absolute rotational position by said method, suppose that the NNUM value that changes " 4 → 0 → 0 → 0 → 4 " into due to internal combustion engine control signal ES becomes " 5 → 1 → 3 → 2 → 6 ", and implement the energising control to CW to U, V, W phase coil CU.Therefore, coil CU, CV and the CW of magnetic pole phase and tooth portion 41 match, and can rotation drive motor.

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

Then, when even not starting rotation and NNUM value through ACG starter 20 after the scheduled time while not changing, 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 NNUM value, and the control of switching on.

Result is, when even not starting rotation and NNUM value through ACG starter 20 after the scheduled time while not changing, supposes 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, when actual NNUM value becomes from " 0 " value that is different from predicted value, according to described actual NNUM value, implement to drive.

Yet, as test, in the order by 3 → 2 → 6, with all candidate values " 3 ", " 2 " and " 6 ", carrying out control period, rotor 30 rotates and travel(l)ing phase slightly in some cases.For example, in some cases, suppose that it is in tf, although it is in fact in tg, and according to " 3 ", implements energising and control, result is that it is turned to the phase place of th.In this case, because can not normally implement motor, drive, then suppose that its next time is in tg, and according to " 2 ", implement energising and control.So, turned to tg phase place.In this case, owing to can not normally implementing motor, drive, then suppose that its next time is in th, and according to " 6 ", implement energising and control.Therefore,, when there is phase shift with which, even, when implementing energising control with all candidate values " 3 ", " 2 " and " 6 ", can not normally implement motor and drive.

In the present embodiment of constructing according to this point, even if control in the time of still can not normally implementing motor driving when implementing to switch on by all a plurality of candidate values " 3 ", " 2 " and " 6 ", for example, by the order (, 2 → 3 → 6 order) that is different from said sequence, implementing energising controls.Utilize this configuration, owing to having provided as test not have the order of above-mentioned phase shift to implement the chance of controlling, can normally implement motor and drive.Notice, when actual NNUM value becomes from " 0 " value that is different from predicted value, according to described actual NNUM value, implement to drive.

According to the present embodiment as described in detail above, can obtain the similar effect with above-mentioned the 8th embodiment, and can obtain following effect.That is to say, in above-mentioned the 8th embodiment, at crank axle 14, turn over internal combustion engine control signal ES between a refunding and occur once, according to the present embodiment, occur twice.Therefore, owing to starting from ACG starter 20 to drive, with after crank shaft 14, complete one and occur internal combustion engine control signal ES before turning, can reduce for calculating the required time of absolute rotational position based on internal combustion engine control signal ES.Therefore, can promptly start the driving of injector 10 and igniter 11.In addition, utilize this configuration, owing to utilizing the driving torque of engine to occur in commitment and can reduce required motor driving torque, can reduce the size of ACG starter 20.

In addition, in the present embodiment, owing on the swing-around trajectory 34a at heteropole magnetic part 34, a plurality of transducers being set, when detecting internal combustion engine control signal ES, can not specify from being wherein output as the transducer of the combination internal combustion engine control signal ES of NNUM value " 0 ".About this problem, in the present embodiment, above-mentioned appointment implemented in the record based on NNUM value.Therefore, can grasp absolute rotational position.

In addition, in the present embodiment, for the energising not completing during the rotary actuation that absolute rotational position calculates, control (motor drives and controls), owing to sequentially implementing energising as test with candidate value " 3 ", " 2 " and " 6 " of next NNUM value, control, can even during above-mentioned rotary actuation, implement motor driving and control.In addition,, although control when still can not normally implement motor and driving when having implemented energising with all candidate values, again by the order that is different from first front sequence, implement energising and control.Therefore, CD-ROM drive motor infallibly.

(the tenth embodiment)

In above-mentioned the 9th embodiment, at three U, V, W phase transducer SU, among SW, U phase transducer SU and V phase transducer 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 transducer SU are all arranged on swing-around trajectory 34a to SW.Result is that, as the situation of U phase signals and V phase signals, W phase signals comprises 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 ES, NNUM value by 5 → 1 → 3 → 2 → 6 → 4 sequential loop repeat to change.On the other hand, occur that therein 4 (5) → 0 (1) → 0 (3) → 0 (2) → 0 (6) → 0 (4) → 1 (5) order changes (numeral in bracket does not wherein occur the NNUM value of signal ES and is that motor drive signal is digital) by reference character tj represents to tp as take for NNUM value in the part of internal combustion engine control signal ES.

Therefore, while stopping before calculating absolute rotational position, when NNUM value is " 0 ", can not designated reference character tk, tl, tm, tn or which is corresponding to " 0 ".Therefore, can not suppose that next NNUM value is for controlling to implement energising in " 3 ", " 2 ", " 6 ", " 4 " or " 5 ".

Therefore, in the present embodiment, as the situation of above-mentioned the second embodiment, suppose that the arbitrary value (for example, " 3 ") that " 3 " are arrived in " 5 " is next NNUM value, and implement U, V, W phase coil CU to control to the energising of CW.Then, as test, for example, in the situation that sequentially changes described arbitrary value (, 3 → 2 → 6 → 4 → 5), implement to control, until normally implement motor, drive.Then, although control when normally not implementing yet motor and driving when having implemented energising with all candidate values " 3 " to " 5 ", for example, by the order (, 2 → 3 → 5 → 4 → 6) that is different from said sequence, implement energising and control.Notice, when actual NNUM value becomes from " 0 " value that is different from predicted value, again based on described actual NNUM value, implement to drive.

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

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

(the 11 embodiment)

In above-mentioned the tenth embodiment, three U, V, W phase transducer SU are sequentially arranged on to SW in the adjacent segment 41a among the gap 41a of a plurality of tooth portion 41.On the other hand, in the present embodiment, as shown in Figure 9, replace three U, V, W phase transducer SU above-mentioned configuration in adjacent segment 41a to SW, they arrange dispersedly.In the example of Fig. 9, its scattering device, so that the angle between U phase transducer SU and V phase transducer SV and the angle between V phase transducer SV and W phase transducer SW are 140 °.

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

In the present embodiment shown in Figure 21, except wherein there is the part of internal combustion engine control signal ES, 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 the internal combustion engine control signal ES that produced by U phase transducer SU by as 4 (5) → 0 (1) → 2 (3) the order variation (the NNUM value of signal ES does not wherein appear in the numeral in bracket) that represented to tc by reference character ta.In addition, value in the part that V phase transducer SV produces changes 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 transducer SW is by 2 (6) → 0 (4) → 1 (1) the order variation being represented to tv by reference character tt.

Therefore,, while stopping before calculating absolute rotational position, when NNUM value is " 0 ", " 3 ", " 6 " or " 5 " can not be appointed as to next NNUM value and implements energising control.Therefore, as the situation at above-mentioned the 9th embodiment, in the situation that change as sequence of tests the arbitrary value enforcement control that " 3 " arrive " 5 ", until motor is by driven.Then, although control when normally not implementing yet motor and driving when having implemented energising with all candidate values " 3 " to " 5 ", again by the order that is different from said sequence, implement energising and control.

In addition,, the in the situation that NNUM value being " 1 " when stopping therein, " 3 ", " 1 " or " 2 " can not being appointed as to next NNUM value and implementing energising control.Therefore, in the situation that as sequence of tests change " 3 " and arrive the arbitrary value of " 5 " and implement to control, until motor is by driven.Then, although control when normally not implementing yet motor and driving when having implemented energising with all candidate values " 3 " to " 2 ", again by the order that is different from first front sequence, implement energising and control.

Similarly, when NNUM value is " 1 " when stopping, " 6 ", " 2 " or " 4 " can not be appointed as to next NNUM value and implements energising control.Therefore, in the situation that sequentially changing described value, implement to control, until motor is by driven, and in addition, by different orders, implement control.In addition,, when NNUM value is " 4 " when stopping, " 5 ", " 1 " or " 4 " can not be appointed as to next NNUM value and implements energising control.Therefore, in the situation that sequentially changing described value, implement to control, until motor is by driven, and in addition, by different orders, implement control.

Next, by describing, U, V, W phase coil CU are controlled to the energising of CW.After calculating absolute rotational position by said method, suppose that the NNUM value of changing into " 4 → 0 → 2 ", " 1 → 0 → 4 " and " 2 → 0 → 1 " from internal combustion engine control signal ES becomes " 5 → 1 → 3 ", " 3 → 2 → 6 " and " 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 transducer SU to SW Monodispersed arrange, can reduce the time interval between the appearance of internal combustion engine control signal ES.Therefore, compare with above-mentioned the tenth embodiment, can further reduce to start to be driven into from ACG starter 20 and occur the required time of internal combustion engine control signal ES.Therefore, can reduce based on internal combustion engine control signal ES and calculate the required time of absolute rotational position, and can promote that injector 10 and igniter 11 start rapidly to drive.

Notice, U, V, W phase transducer SU are in the situation on two in the SW swing-around trajectory 34a that are arranged on heteropole magnetic part 34 therein, can apply " scattering device " according to the present embodiment, 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 coil CV and W phase coil CW, U, V, W phase transducer SU to SW, crank rotational position sensor SE and iron core 42, and iron core 42 places are formed with by the tooth portion 41 of these coil windings.A plurality of tooth portion 41 is set in direction of rotation, and U phase coil CU, V phase coil CV and W phase coil CW are sequentially wound around corresponding tooth portion 41.In the example of Figure 23, arrange 18 tooth portions 41.

U, V, W phase transducer SU are attached on the outer surface of stator 40 in the position relative with S utmost point magnet 32S with N utmost point magnet 32N to SW and crank rotational position sensor SE.In this configuration, detect the heat treatment being caused according to the rotation of rotor 30 by N utmost point magnet 32N and S utmost point magnet 32S.Notice, the same with crank rotational position sensor SE as U, V, W phase transducer SU to SW, adopt hole IC.Therefore,, even when rotor 30 does not rotate, can export the detection signal corresponding with the polarity of relative magnet.

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

As shown in Figure 24, in the part S utmost point magnet 32S in the example of the predetermined magnet 32S(Figure 24 among a plurality of

magnet

32S and 32N), form heteropole magnetic part 34 as described below.That is to say, only the dashed area shown in Figure 24 is geomagnetic into the polarity (the N utmost point) different from S utmost point magnet 32S.Heteropole magnetic part 34 is formed on the end of predetermined magnet 32S and is present in whole direction of rotation (horizontal direction in Figure 24) along the direction (vertical direction in Figure 24) of rotor axis.

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

In the present embodiment, U, V, W transducer SU are configured to export low signal (binary number " 0 ") when it detects the N utmost point to SW and crank rotational position sensor SE, and when it detects the S utmost point, export high signal (binary number " 1 ").Because the quantity of

magnet

32S and 32N is the 12(12 utmost point), degree in crank angle signal, U phase signals, V phase signals and W phase signals often turn over 30 at rotor 30 and are converted into low or high (referring to Figure 25) while spending.Therefore, 360 ° of the respective electrical angles of corresponding U, V, W phase are corresponding with 60 ° of the anglecs of rotation (mechanical angle) of crank axle 14.Notice, when heteropole magnetic part 34 being detected, degree in crank angle signal and U phase signals are converted into low.In addition, rotor 30 often turns over 10 degree, at U, V, W phase transducer SU, in any in SW and crank rotational position sensor SE, occurs high/low transformation.

Notice, as shown in Figure 24, in the situation that there is the member 32a that there is no polarity between N utmost point magnet 32N and S utmost point magnet 32S, when because member 32a and U, V, W phase transducer SU are relative and polarity chron can not be detected to SW and crank rotational position sensor SE, suppose described signal be previous setting signal in low signal and high signal (for example, and process low signal).

Notice, much less, can adopt that wherein N utmost point magnet 32N and S utmost point magnet 32S are located adjacent one another so that there is not the rotor 30 of above-mentioned member 32a.In addition, can so arrange, so that extremely form by a magnet block being magnetized to the N utmost point and S the rotor that wherein a plurality of N utmost point magnet 32N and S utmost point magnet 32S are formed by a magnet block.Notice, can for example, by using a plurality of (, four) magnet block or can be by form the rotor of this situation by a magnet block.

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

More specifically, the decimal numeral numerical value being converted to by 4 bits is described combined information NNUM, wherein by first of the binary number representation binary expression formula of degree in crank angle signal, by the second of the binary number representation binary expression formula of U phase signals, by the 3rd of the binary number representation binary expression formula of V phase signals, by the 4th of the binary number representation binary expression formula of W phase signals.Utilize ECU13 to calculate this numerical value of N NUM.For example, as shown in leftmost hurdle, when 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 the part of low signal.This part signal is corresponding to " internal combustion engine control signal ", and the other parts of U phase signals except reference character ES are corresponding to " 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.Notice, when contrary with the present embodiment, while not forming heteropole magnetic part 34, this part of reference character ES 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 signal ES being detected, NNUM value becomes " 12 " → " 8 " → " 10 ".Yet, except ES detection time At All Other Times, NNUM value does not become " 8 ".In addition,, as represented with reference character j, k and l in the accompanying drawings, when internal combustion engine control signal ES being detected, NNUM value becomes " 5 " → " 1 " → " 3 ".Yet, except ES detection time At All Other Times, NNUM value does not become " 1 ".In addition, when ES being detected, only there are " 12 " relevant with c to reference character a, " 10 " etc.

Therefore,, when the NNUM value " 8 " relevant to reference character b, the NNUM value " 1 " relevant with c with reference character k, a, " 12 ", " 10 " etc. being detected, ECU13 calculates the absolute rotational position of crank axle 14 according to degree in crank angle.As long as can grasp absolute rotational position, just can specify the position relationship of 1 of the rising of corresponding sensor output signal or decline timing (that is, NNUM upgrades timing) and 4 two-stroke engines 1 between turning.That is to say, the NNUM value based on current time place is calculated absolute rotational position.

For example, the time g when occurring that NNUM value " 2 " appears in NNUM value " 8 " afterwards for the second time can be appointed as to the time that engine piston has arrived bottom dead centre BDC.Notice, whether the time that can differentiate (stroke judgement) above-mentioned bottom dead centre BDC by reference to the value of inspiratory pressure sensor 16 is in instroke or compression travel.Utilizing this configuration, can be the object time based on NNUM renewal timing by fuel injection time and the control duration of ignition according to absolute rotational position.

Notice, NNUM value is in the situation of " 0 " therein, when previous NNUM value is " 9 ", is assigned therein as the value of the engine control signal ES being represented by reference character e.On the other hand, when previous NNUM value is " 2 ", be assigned therein as the value of the engine control signal ES being represented by reference character h.Notice, in the counter-rotational situation of ACG starter 20, when previous NNUM value is " 4 ", be assigned therein as the value of the signal ES relevant to reference character e therein, and when described value is " 6 ", be assigned therein as the value of the signal ES relevant to reference character h.Then, absolute rotational position is calculated in the appearance timing of the result based on these appointments and engine control signal ES.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 specified next NNUM value (specified device), and the next NNUM value based on specified, determines the energising Control the content to U phase coil CU, V phase coil CV and W phase coil CW.For example, when current NNUM value is " 6 ", can the rotation based on previous next NNUM value be appointed as to " 4 ".That is to say, be wound with the tooth portion 41 of U phase coil CU in shift to the timing of the position (low) relative with N utmost point magnet 32N from the position (height) relative with S utmost point magnet 32S.Therefore, its timing in the ON/OFF of U phase coil CU energising is changed.

Like this, ECU13 switches on to U phase coil CU based on NNUM value " 6 " control that represents the NNUM value " 9 " that U phase signals rises or represent to decline whether having been detected.Similarly, ECU controls 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 coil CU to control to the energising of CW.Therefore, magnetic pole phase is corresponding with coil CU, CV and the CW of tooth portion 41, and can rotation drive motor.Similarly, about the NNUM value " 9 " relevant with f with reference character d, e, " 0 " and " 4 ", in the situation that these values of supposition are " 11 ", " 2 " and " 6 ", implement energising and control; About the NNUM value " 2 " relevant with i with reference character g, h, " 0 " and " 9 ", in the situation that these values of supposition are " 6 ", " 4 " and " 13 ", implement energising and control; And, about the NNUM value " 5 " relevant with l with reference character j, k, " 1 " and " 3 ", in the situation that these values of supposition are " 13 ", " 9 " and " 11 ", implement energising and control.

On the other hand, while stopping, when NNUM value is for example " 0 ", next NNUM value can not be appointed as to " 4 " or " 9 " before calculating absolute rotational position.Therefore, in the present embodiment, suppose that next NNUM value for example, for the arbitrary value (, " 4 ") in " 4 " and " 9 ", and implement U, V, W phase coil CU to control to the energising of CW.Then, when not starting rotation and NNUM value through ACG starter 20 after the scheduled time while not changing, suppose that next NNUM value is not above-mentioned arbitrary value " 4 " but another value " 9 ", and to U, V, W phase coil CU to the CW control of switching on.Notice, when actual NNUM value becomes from " 0 " value that is different from predicted value, based on described actual NNUM value, implement to drive.

In addition, whether the record detection ACG starter 20 of ECU13 based on NNUM value rotates backward.For example, when it rotates forward, NNUM value changes by as above 11 → 2 → 6 → 4 → 13 → 9 order.On the other hand, when it rotates backward, NNUM value changes by 9 → 13 → 4 → 6 → 2 → 11 order.

In order to utilize ACG starter 20 to pilot engine, when engine piston is in compression travel during from the starting of position not long ago of TDC, because the required driving torque of ACG starter 20 increases because of decrement, worry that the starting performance of engine is lowered.Therefore, after implementing in some cases, pendulum is controlled, and wherein, before engine start, makes crank axle 14 rotate backward and be set in the piston position with good startability.Like this, in the situation that ACG starter 20 is reversed driving, when NNUM value is for example 9 at this moment, next NNUM value is appointed as to 13, and as one man controls the energising timing to CW to U, V, W phase coil CU with described designated value.

Fig. 6 shows to utilize the microcomputer 13a(of ECU13 referring to Figure 22) U as above, V, W phase coil CU are implemented to the flow chart of the processing procedure of energising control to CW.With predetermined period (for example,, by the CPU of above-mentioned microcomputer 13a or the cycle calculating by predetermined degree in crank angle), repeat to implement described processing.Otherwise, when rotation stops, with above-mentioned predetermined period, processing, and by each edge as described below, detect and process when rotating.That is to say, the microcomputer 13a shown in Figure 22 has the capturing function of the transformation timing of the output of catching from corresponding transducer SU to SW and input signal (U shown in Figure 25, V, W phase signals) wherein.In brief, it detects rising and the decline timing (edge detection timing) of U, V, W phase signals.While then detecting 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 phase transducer SU, to SW, obtain corresponding degree in crank angle signal, U phase signals, V phase signals and W phase signals.At next step S20(combined information generating apparatus) locate, according to degree in crank angle signal and U, V, W phase signals, calculate the combined information NNUM of the combination that represents described signal.At next step S30 place, based on NNUM value, calculate next NNUM value.

More specifically, based on when rotating forward as 11 → 2 → 6 → 4 → 13 → 9 above-mentioned rotation, when current NNUM value is for example " 11 ", calculate next NNUM value for " 2 ".Notice, in current NNUM value, be to utilize the value of the NNUM value appointment at current time place, that is,, during to above-mentioned reference character b, " 8 ", " 1 " that k, a are relevant with c, " 12 " or " 10 ", calculate next NNUM value for " 11 ", " 11 ", " 9 " or " 2 ".

At next step S40 place, the next NNUM value based on calculating at step S30 place, implements U, V, W phase coil CU to control to the energising of CW.Utilize this processing, ACG starter 20 is implemented motor by predetermined direction of rotation and is driven.

For example, about energising to U phase coil CU, control, when next NNUM value is " 11 " or " 4 ", the value that forms the U phase signals of next NNUM value refers to from forming the variation of value of the U phase signals of current NNUM value.Therefore,, when next NNUM value is designated as " 11 " or " 4 ", 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 to V phase coil CV and W phase coil CW, control, when next NNUM value is designated as " 9 " or " 2 ", energising Control the content to V phase coil CV is changed, and when next NNUM value is designated as " 13 " or " 2 ", the energising Control the content of W phase coil CW is changed.

At next step S50 place, it determines whether and occurs NNUM value " 8 " and whether carried out as mentioned above the detection of the absolute rotational position of crank axle 14.When having carried out detection (S50: be), processing proceeds to next step S60, at this step S60 place, absolute rotational position based on detecting and U, V, W phase signals (or NNUM value), control the operation of injector 10 and igniter 11, so that fuel injection time and the duration of ignition are the object time.Notice, when not carrying out the detection of absolute rotational position (S50: no), inoperation injector 10 and igniter 11, and processing enters holding state.

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

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

Notice, as mentioned above, the detected value based on inspiratory pressure sensor 16, judges that whether the time of bottom dead centre BDC is in instroke or compression travel.When not implementing stroke judgement, also at ts1 ', to ts2 ' and tf1 ', to tf2 ', locate drive point firearm 11 and injector 10.In addition,, in the example of Figure 25, each IGNITION CONTROL time ts1, ts2 are consistent with rising or the decline timing of U, V, W phase signals with injection control time tf1, tf2.When itself and described timing are inconsistent, can through the time point after the scheduled time, implementing IGNITION CONTROL or spray control from U, V not long ago of object time, rising or the decline timing of W phase signals.

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

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

(2) in the present embodiment, owing on the swing-around trajectory 34a at heteropole magnetic part 34, a plurality of transducers being set, when internal combustion engine control signal ES being detected, can not specify from being wherein output as the transducer 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 the record based on NNUM value.Therefore, can grasp absolute rotational position.

(3) in the present embodiment, about the energising in during the rotary actuation of calculating that does not complete absolute rotational position, control (motor drives and controls), owing to sequentially implementing energising control as test with candidate value " 3 " and " 13 " of next NNUM value, can even during above-mentioned rotary actuation, implement motor driving and control.

(4) can not be only according to the height of U, V and W phase signals, between the low signal of internal combustion engine control signal ES and the low signal of motor control signal, differentiate.Particularly, when wherein not yet obtaining the ACG starter 20 of the record of U phase signals, drive while starting or when ACG starter 20 stops, can not specifying the low state of U phase signals whether by internal combustion engine control signal ES, to be caused.On the other hand, in the present embodiment, because the combined information NNUM of each signal is calculated, even, when stopping ACG starter 20, when NNUM value is " 1 ", based on NNUM value, specify the low state of W phase signals to be caused by internal combustion engine control signal ES.Therefore, can promptly grasp the required absolute rotational position of engine control.

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

(5) notice, due to from U, V, W phase transducer SU to SW output internal combustion engine control signal ES, in some cases, can not specify next U, V, W phase signals from U, V, the W phase sensor signal of current time.Yet, even, under this situation, in some cases, can specify next NNUM value to specify next U, V, W phase sensor signal by the NNUM value based on current time place.In the present embodiment of constructing according to this point, owing to determining the energising Control the content to CW to U, V, W phase coil CU according to the next NNUM value of NNUM value appointment based on current time place, can reduce situation and the definite Control the content of switching on that wherein can not specify next U phase sensor signal.

(6) rotor 30 of ACG starter 20 and crank axle 14 are fixed, so that rotation integratedly under pivot state consistent with each other, and between rotor 30 and crank axle 14, do not have the Poewr transmission mechanism of belt for example or gear.Therefore,, when when being arranged on the crank rotational position sensor SE output crank angle signal ACG starter 20, can avoid the rotatable phase of crank axle 14 that caused by the backlash of gear or the expansion of belt and the skew between the rotatable phase of rotor 30.Therefore,, for the calculating of the absolute rotational position of crank axle 14, can guarantee enough computational accuracies.

(7) it so arranges, so that there will not be At All Other Times NNUM value " 8 " except ES detection time when internal combustion engine control signal ES being detected.Therefore, when the NNUM value based on current time place is calculated absolute rotational position, can be in the situation that promptly grasp absolute rotational position without the record of waiting for accumulation NNUM value.

(8), in the conventional method shown in Figure 16, the rising of degree in crank angle signal or decline cycle are the time that crank axle 14 turns over the anglec of rotation (30 °) being occupied by magnet 32S, a 32N.On the other hand, due to the combination that is each sensor signal of NNUM update cycle, it turns over 1/3 rotation time of the above-mentioned anglec of rotation (30 °) for crank axle 14.That is to say, the NNUM update cycle is shorter than the cycle of the degree in crank angle signal in Figure 16.Therefore, compare with the situation that the degree in crank angle signal based on shown in Figure 16 is implemented to control, according to the rising based on corresponding U, V, W phase signals or decline timing (NNUM upgrades timing), control fuel injection time and the present embodiment of the duration of ignition, be 1/3(10 °/30 ° basic time that is used for controlling), and can control accurately fuel injection time and the duration of ignition.

(9) as shown in Figure 23, forbid crank rotational position sensor SE and U, V, W phase transducer SU to SW, to be arranged in adjacent segment 41a, but it is arranged dispersedly.In the example of Figure 23, its scattering device, so that the angle between angle, U phase transducer SU and the V phase transducer SV between crank rotational position sensor SE and U phase transducer SU and the angle between V phase transducer SV and W phase transducer SW are 80 °.Therefore, the situation in the adjacent segment 41a among being sequentially arranged on a plurality of gap 41a of tooth portion 41 to SW and SE with four transducer SU is wherein compared, and 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 the required time of internal combustion engine control signal ES.Therefore, can reduce according to internal combustion engine control signal ES and calculate the required time of absolute rotational position, 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 a plurality of

magnet

32S and 32N) in the part of (the S utmost point magnet in the example of Figure 27 (a)), form the heteropole magnetic part 34 being described below.That is to say, only the dashed area in Figure 27 (a) is geomagnetic into the polarity (the N utmost point) different from S utmost point magnet 32S.This heteropole magnetic part 34 is formed on predetermined magnet 32S(A along the direction (vertical direction in Figure 27 (a)) of rotor axis) end, and so form, so that this predetermined magnet 32S(A) polarity along direction of rotation (horizontal direction in Figure 27 (a)), be present in the both sides of heteropole magnetic part 34.That is to say predetermined magnet 32S(A) upper end edge direction of rotation be divided into three parts, and middle body is formed heteropole magnetic part 34.

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

In the present embodiment, U, V, W phase transducer SU are configured to export low signal (binary number " 0 ") when it detects the N utmost point to SW and crank rotational position sensor SE, and when it detects the S utmost point, export high signal (binary number " 1 ").Because the quantity of

magnet

32S and 32N is the 12(12 utmost point), degree in crank angle signal, U phase signals, V phase signals and W phase signals often turn over 30 at rotor 30 and are converted into low or high (referring to Figure 28) while spending.Therefore, 360 ° of the respective electrical angles of corresponding U, V, W phase are corresponding with 60 ° of the anglecs of rotation (mechanical angle) of crank axle 14.Notice, when heteropole magnetic part 34 being detected, degree in crank angle signal is converted into low.In addition, rotor 30 often turns over 10 degree, at U, V, W phase transducer SU, in any in SW and crank rotational position sensor SE, occurs high/low transformation.

Notice, as shown in Figure 27 (a), in the situation that there is the member 32a that there is no polarity between N utmost point magnet 32N and S utmost point magnet 32S, when because this member 32a and U, V, W phase transducer SU are relative and polarity chron can not be detected to SW and crank rotational position sensor SE, suppose described signal be low signal and high signal previous setting signal (for example, and process low signal).

Notice, much less, can adopt that wherein N utmost point magnet 32N and S utmost point magnet 32S are located adjacent one another so that there is not the rotor 30 of above-mentioned member 32a.In addition, can so arrange, so that form by a magnet block being magnetized to the N utmost point and the S utmost point rotor that wherein a plurality of N utmost point magnet 32N and S utmost point magnet 32S are formed by a magnet block.Notice, the rotor in this situation can form by a plurality of by utilizing (for example, four) magnet.

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

More specifically, by 4 bits, converting decimal numeral numerical value to is described combined information NNUM, 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 the 3rd of binary number representation binary expression formula of V phase signals, utilize the 4th of binary number representation binary expression formula of W phase signals.Utilize ECU13 to calculate this numerical value of N NUM.For example, as shown in leftmost hurdle, when degree in crank angle signal and U, V, W phase signals are respectively " 1 ", " 1 ", " 0 " and " 1 ", NNUM value is " 11 ".

Reference character ES in accompanying drawing represents to change into because heteropole magnetic part 34 being detected the part of low signal.This signal section is corresponding to " internal combustion engine control signal ", and U, V, W phase signals are corresponding to " 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 detected, NNUM value becomes " 8 ".Yet, except ES detection time At All Other Times, NNUM value is not " 8 ".Therefore, ECU13 calculates the absolute rotational position of crank axle 14 with reference to the degree in crank angle when NNUM value " 8 " being detected.As long as can grasp absolute rotational position, just can specify the position relationship of one of the rising of corresponding sensor output signal or decline timing (that is, NNUM upgrades timing) and 4 two-stroke engines between turning.

For example, the time tb when occurring that NNUM value " 2 " appears in NNUM value " 8 " afterwards for the third time can be appointed as to the time that engine piston has arrived bottom dead centre BDC.Notice, whether the time that can differentiate (stroke judgement) above-mentioned bottom dead centre BDC by reference to the value of inspiratory pressure sensor 16 is in instroke or compression travel.Utilizing this configuration, can be the object time based on NNUM renewal timing by fuel injection time and the control duration of ignition with reference to absolute rotational position.

In addition, the NNUM value of ECU13 based on current time place specified next NNUM value (designation method), and the next NNUM value based on appointment is determined the energising Control the content to U phase coil CU, V phase coil 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 the tooth portion 41 of U phase coil CU in shift to the timing of the position (low) relative with N utmost point magnet 32N from the position (height) relative with S utmost point magnet 32S.Therefore, its timing in the ON/OFF of U phase coil CU energising is changed.

Like this, ECU13 switches on to U phase coil CU based on NNUM value " 6 " control that represents the NNUM value " 9 " that U phase signals rises or represent to decline whether having been detected.Similarly, ECU controls V phase coil CV and W phase coil CW energising based on NNUM value.Notice, for NNUM value " 8 ", contrary with coil motor driver CU, CV and CW, with " 9 ", U, V, W phase coil CU are implemented to energising to CW and control, so the phase place of magnetic pole is consistent with coil CU, CV and the CW of tooth portion 41, and can rotation drive motor.

In order to utilize ACG starter 20 to pilot engine, when engine piston is in compression travel during from the starting of position not long ago of TDC, because the required driving torque of ACG starter 20 increases because of decrement, worry that the starting performance of engine reduces.Therefore, after implementing in some cases, pendulum is controlled, and wherein, before engine start, makes crank axle 14 rotate backward and be set in the piston position with good startability.Like this, in the situation that ACG starter 20 is reversed driving, when NNUM value is for example 9 at this moment, next NNUM value is appointed as to 13, and as one man controls the energising timing to CW to U, V, W phase coil CU with described designated value.

Fig. 6 shows to utilize the microcomputer 13a(of ECU13 referring to Figure 22) U as above, V, W phase coil CU are implemented to the flow chart of the processing procedure of energising control to CW.Press predetermined period (for example,, by the CPU of above-mentioned microcomputer 13a or the cycle calculating by predetermined degree in crank angle) and repeat to implement described processing.Otherwise, when rotation stops, by above-mentioned predetermined period, processing, and by each edge as described below, detect and process when rotating.That is to say, the microcomputer 13a shown in Figure 22 has the capturing function of the transformation timing of the output of catching from corresponding transducer SU to SW and input signal (U shown in Figure 28, V, W phase signals) wherein.In brief, it detects rising and the decline timing (edge detection timing) of U, V, W phase signals.While then detecting 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 phase transducer SU, to SW, obtain corresponding degree in crank angle signal, U phase signals, V phase signals and W phase signals.At next step S20(combined information generating apparatus) locate, based on degree in crank angle signal and U, V, W phase signals, calculate the combined information NNUM of the combination that represents described signal.At next step S30 place, according to NNUM value, calculate next NNUM value.More specifically, the above-mentioned rotation 11 → 2 → 6 → 4 → 13 → 9 (8) based on when rotating forward, when current NNUM value is for example " 11 ", calculates next NNUM value for " 2 ".Notice, when current NNUM value is " 8 ", calculate next NNUM value for " 9 ".

For example, about energising to U phase coil CU, control, when next NNUM value is " 11 " or " 4 ", the value finger-type that forms the U phase signals of next NNUM value becomes the variation of value of the U phase signals of current NNUM value.Therefore,, when next NNUM value is designated as " 11 " or " 4 ", 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 to V phase coil CV and W phase coil CW, control, when next NNUM value is designated as " 9 " or " 2 ", energising Control the content to V phase coil CV is changed, and when next NNUM value is designated as " 13 "or" 2 ", the energising Control the content of W phase coil CW is changed.

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

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

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

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

(11) rising of degree in crank angle signal in conventional method or the cycle of decline are the rotation time that crank axle 14 turns over the anglec of rotation (30 °) being occupied by magnet 32S, a 32N.On the other hand, because the NNUM update cycle is the combination of each sensor signal, it turns over 1/3 rotation time of the above-mentioned anglec of rotation (30 °) for crank axle 14.That is to say, the NNUM update cycle is shorter than traditional cycle of degree in crank angle signal.Therefore, compare with the conventional situation of implementing to control according to described degree in crank angle signal, according to the rising based on corresponding U, V, W phase signals or decline timing (NNUM upgrades timing), control fuel injection time and the present embodiment of the duration of ignition, be 1/3(10 °/30 ° basic time that is used for controlling), 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 combination in any.

In above-mentioned each embodiment, the present invention is applied to have in the vehicle of the torque-transmitting mechanisms of centrifugal clutch for example.In the situation that it is applied to not having the vehicle of described torque-transmitting mechanisms, it can so arrange, so that can be in the situation that the clutch operating by driver utilizes holdback clutch to block to the power transmission of driving wheel or allows to utilize ACG starter 20 to start motors in the situation that neutral position state being detected drives.

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

In above-mentioned each embodiment, adopt its rotor 30 to there is the 12-18 utmost point ACG starter 20 that 12 utmost points and stator 40 have 18 utmost points.Yet, also can adopt the ACG starter 20 with other number of poles, for example, 8-12 utmost point starter or 16-24 utmost point starter.

In above-mentioned the first embodiment, predetermined magnet 32S(A) upper end edge direction of rotation is divided into three parts, and middle body forms heteropole magnetic part 34.As shown in Figure 4 (b), can so arrange, so that described predetermined magnet 32S(A) upper end in direction of rotation, be divided into two parts, and one of them is formed heteropole magnetic part 34.Notice, when described upper end is divided into three parts, for example rising or the decline timing of the rising of other pilot signal of V phase and W phase signals or decline timing and internal combustion engine control signal ES are consistent with each other.Therefore, can avoid the complexity of combined information NNUM.On the other hand, when upper end is divided into two parts as mentioned above, combined information 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 is the centre position between mutually in another V phase and W roughly, and the sigtnal interval is 5 ° of mechanical angles.Therefore, compare with the situation that is divided into three parts that sigtnal interval is wherein 10 ° of mechanical angles, can control accurately igniting and spray.

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, so that S utmost point heteropole magnetic part 34 is formed in N utmost point magnet 32N, and internal combustion engine control signal ES is set as 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 the output of high side.

In above-mentioned each embodiment, for three U, V, W phase coil CU provide three U, V, W phase transducer SU to SW to CW.On the other hand, can so arrange, so that remove three U, V, W phase transducer SU to any or two in SW.In this case, can be estimated corresponding to the motor control signal of removing the coil of transducer and generated by the motor control signal of another coil.For example, when removing W phase transducer SW, measure opening time or the shut-in time of V phase signals, then by wherein from the edge of V phase signals through the time of described Measuring Time or be wherein considered as the motor control signal relevant with W phase coil CW from the rising point of the motor control signal of V phase transducer SV through time of the scheduled time, and on W phase coil CW, implement energising and control.

In above-mentioned each embodiment, rotor 30 is directly connected on crank axle 14, yet rotor 30 can be connected on crank axle 14 via the Poewr transmission mechanism of for example belt or gear.Notice, in this case, due to the backlash of gear, the expansion of belt etc. between the rotatable phase of crank axle 14 and the rotatable phase of rotor 30, occur skew.Therefore, the computational accuracy of the absolute rotational position of crank axle 14 declines.

In above-mentioned each embodiment, adopt ACG starter 20(motor generator) as according to electric rotating machine of the present invention.The starter motor that there is no electricity generate function can be adopted, and the generator that there is no motor function can be adopted.Notice, when employing does not have the generator of motor function, because the signal of exporting from each transducer SU to SW is not used as motor control signal, there is no need transducer SU to be arranged on swing-around trajectory 34a position in addition to SW.In addition,, when adopting generator, it is not limited to threephase generator.The present invention can be applied to have the single-phase magneto of other number of poles, and for example, its rotor 30 has 12-12 utmost point magneto, 8-8 pole generator or the 16-16 pole generator that 12 utmost points and stator 40 have 12 utmost points.

In above-mentioned the 7th embodiment shown in Figure 12, in middle body, along direction of rotation, be formed with space 34k, and predetermined magnet 32S(A) be positioned at the both sides of space 34k.On the other hand, as shown in Figure 15 (a), can so arrange, so that space 34k is formed at end along direction of rotation, and in abutting connection with magnet 32N(B) adjacent with space 34k.In addition, as shown in Figure 15 (b), can so arrange, so that space 34k forms in whole direction of rotation, 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 reference position.Can so arrange so that from transducer input time measuring transducer fabric width time sequentially, and obtain the time ratio between them, by the wherein said time, than the position probing higher than set point, be then crank reference position.Can utilize this detection method that this detection method and logical table are combined.

In above-mentioned the 12 embodiment, crank rotational position sensor SE and U, V, W phase transducer SU to SW by scattering device as described above.Replace this scattering device, can so arrange, so that crank rotational position sensor SE and U, V, W phase transducer SU are arranged in adjacent segment 41a to SW.In addition the transducer of any amount in described four transducers can be arranged dispersedly.

In above-mentioned the 12 embodiment, three U, V, W phase transducer SU are arranged on the swing-around trajectory 34a of heteropole magnetic part 34 to SW.Can so arrange, so that these U, V, W phase sensor SU are arranged on swing-around trajectory 34a to one or two in SW.Notice, in this case, can so arrange, so that application, according to the first embodiment " scattering device ", is calculated the required time of absolute rotational position to reduce.

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

For example, in the variation of the NNUM value shown in Fig. 5, when the rising of U, V, W phase signals or decline timing (edge detection timing), existence can not be the value of NNUM value.More specifically, at U, rise mutually just constantly, " 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 number, implements predetermined mistake and process.

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, implement this series of processes.

First, in the step S110 shown in Figure 30, judge whether it rises as U phase signals.When be judged to be U phase signals in this differentiation, rise (S110: be), in step S120, the value of U phase signals is set as to " 1 ".In next step S130, determine whether and keep V phase signals=" 0 ".When judgement does not keep V phase signals=" 0 " (S130: no) in this differentiation, in step S140, determine whether and keep W phase signals=" 0 ".When judgement does not keep W phase signals=" 0 " (S140: no) in this differentiation, in step S150, increase U phase error count U_ERR, and stop for the time being this series of processes.In this case, NNUM value is " 7 ", and it is the value that U rises mutually and can not occur timing situation lower normal time.On the other hand, when judging maintenance W phase signals=" 0 " (S140: be) in step S140, in step S160, NNUM value is set as to " 3 ", and stops for the time being this series of processes.

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

On the other hand, when judging that in step S110 it is not U phase signals rising (S110: no), that is, 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 judgement does not keep V phase signals=" 0 " (S S210: no) in this differentiation, in step S220, determine whether and keep W phase signals=" 0 ".When judgement does not keep W phase signals=" 0 " (S220: no) in this differentiation, in step S230, increase U phase error count U_ERR, and stop for the time being this series of processes.In this case, NNUM value is " 6 ", and it is the value that U declines mutually and can not occur situation lower normal time of timing.On the other hand, when judging maintenance W phase signals=" 0 " (S220: be) in step S220, in step S240, NNUM value is set as to " 2 ", and stops for the time being this series of processes.

In addition,, when judging maintenance V phase signals=" 0 " (S210: be) in step S210, in step S250, determine whether and keep W phase signals=" 0 ".When judgement does not keep W phase signals=" 0 " (S250: no) in this differentiation, in step S260, increase U phase error count U_ERR, and stop for the time being this series of processes.In this case, NNUM value is " 4 ", and it is the value that U declines mutually and can not occur timing situation lower normal time.On the other hand, when judging maintenance W phase signals=" 0 " (S250: be) in step S250, in step S270, NNUM value is set as to " 0 ", and stops for the time being this series of processes.

As mentioned above, occur that mistake as one man increases U phase error count U_ERR when detecting at U phase signals edge.In erroneous calculations operation or in another program, judge whether U phase error count U_ERR is greater than pre-determined number.When the number of times of described error count ERR is greater than pre-determined number, implements predetermined mistake and process.Because mistake is processed, for example, may reset combined information NNUM, or force to make combined information NNUM change predetermined value into.Notice, the processing when edge of having described U phase signals herein detects, yet, while detecting at the edge of V phase signals or W phase signals, can like implementation of class, process.

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

The above-mentioned starter motor with internal combustion engine control signal output function is assumed to be and is provided with: the rotor being formed by the magnet that opposed polarity is alternately set along direction of rotation; By arranging along direction of rotation, on it, be wound with the stator that a plurality of tooth portion of coil forms; And phase transducer, it is attached to position relative with magnet in stator and the output crank position signal corresponding with the polarity of rotary magnet.

In addition, in a part for predetermined magnet, form heteropole part, this heteropole is partly geomagnetic into the polarity different from predetermined magnet among described a plurality of magnets or is not geomagnetic into any polarity, and on the swing-around trajectory of the heteropole part of rotating together with rotor, phase transducer is set.When phase transducer detects heteropole magnetic part, the internal combustion engine control signal of the absolute rotational position of the output shaft of phase transducer output expression internal combustion engine.

Alternatively, described starter motor is to play the electric rotating machine of starter motor effect, wherein phase transducer is exported the motor control signal corresponding with the polarity of rotary magnet, and it is controlled the timing of coil electricity is rotated to driving by the motor control signal based on detecting, thereby rotarily actuate the output shaft of internal combustion engine.When phase transducer detects heteropole part, substitute motor control signal, the reference position signal of its exportable internal combustion engine control signal.

Therefore,, owing to utilizing the reference position signal of the phase transducer output internal combustion engine control signal of output motor control 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 transducer.Notice, electric rotating machine can be starter motor, magneto or motor generator.

Otherwise, when not removing but leaving crank rotational position sensor, can be respectively by phase transducer and the crank rotational position sensor detection heteropole part of output internal combustion engine control signal.In this configuration, owing to can turning at the output shaft of internal combustion engine repeated detection between a refunding, to heteropole part, can reduce from internal combustion engine and start to rotarily actuate to heteropole part being detected to grasp the essential time (the second object) of absolute rotational position.Therefore, for example, in having the internal combustion engine of idling system, the stage is grasped absolute rotational position in early days, can reduce the time of resetting.In addition, when utilizing the foot-actuated levers of sulky vehicle or starter motor starting because in early days the stage grasp absolute rotational position, can spray by the fuel of commitment and igniting starts the driving of internal combustion engine, to reduce the starting time of internal combustion engine.

In addition, in whole direction of rotation, in a part for predetermined magnet, form heteropole part, this heteropole is partly geomagnetic into the polarity different from predetermined magnet among described a plurality of magnets or is not geomagnetic into any polarity, and on the swing-around trajectory of this heteropole magnetic part rotating together with rotor, phase transducer is set.When phase transducer detects heteropole magnetic part, substitute motor control signal, the internal combustion engine control signal of the absolute rotational position of exportable expression output shaft.

According to this configuration, because can utilize phase transducer output motor control signal and export internal combustion engine control 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 transducer.

Be provided with heteropole magnetic part and rotational position sensor, this heteropole magnetic part forms by a part for the predetermined magnet among a plurality of magnets being magnetized to the polarity different from described magnet in whole direction of rotation, this rotational position sensor is arranged on the swing-around trajectory of the heteropole magnetic part rotating together with rotor, and detects heteropole magnetic part with the internal combustion engine control signal of the absolute rotational position of output expression output shaft.Due to phase transducer being also set except rotational position sensor on swing-around trajectory, when phase transducer detects heteropole magnetic part, substitute motor control signal, the internal combustion engine control signal of the absolute rotational position of the exportable expression output shaft of phase transducer.

According to this configuration, because phase transducer and crank rotational position sensor by output internal combustion engine control signal detect respectively heteropole magnetic part, can at the output shaft of internal combustion engine, turn between a refunding and detect heteropole magnetic part repeatedly.Therefore, can reduce from internal combustion engine and start to rotarily actuate to heteropole magnetic part being detected to grasp the required time (the second object) of absolute rotational position.Therefore, for example, in thering is 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 the foot-actuated levers by sulky vehicle or starter motor starting, because stage is in early days grasped absolute rotational position, can spray and igniting starts the operation of cranking internal combustion engine by the fuel in stage in early days, to reduce the starting time.

Be provided with heteropole magnetic part and rotational position sensor, this heteropole magnetic part is formed in the part of the predetermined magnet among a plurality of magnets and is geomagnetic into the polarity different from described magnet, this rotational position sensor is arranged on the swing-around trajectory of heteropole magnetic part, and detects heteropole magnetic part with the internal combustion engine control signal of the absolute rotational position of output expression output shaft.Described heteropole magnetic part can be formed in a part for predetermined magnet in direction of rotation.

For example, as shown in Figure 27 (a), by predetermined magnet 32S(A) middle body in three parts being divided into is formed heteropole magnetic part 34 so that predetermined magnet 32S(A) in the part and the heteropole magnetic part 34 that by reference character P, are represented in direction of rotation, arrange.Otherwise, as shown in Figure 27 (b), by predetermined magnet 32S(A) in two parts being divided into one is formed heteropole magnetic part 34 so that predetermined magnet 32S(A) in the part and the heteropole magnetic part 34 that by reference character Q, are represented in direction of rotation, arrange.

Like this, according to above-mentioned disclosure, because heteropole magnetic part is formed in a part for predetermined magnet in direction of rotation, compare with its traditional structure forming in whole direction of rotation, can reduce the magnet short-cut path length in rotation direction (vertical direction in Figure 27 (a) and Figure 27 (b)) between predetermined magnet and heteropole magnetic part.The output that therefore, can suppress starter motor reduces.In addition,, in heteropole magnetic part, can not avoid the polarity mismatch between predetermined magnet and the tooth portion relative with magnet.Yet according to above-mentioned disclosure, because the area of heteropole magnetic part in direction of rotation (horizontal direction in Figure 27 (a) and Figure 27 (b)) reduces, the output that can suppress the starter motor that causes due to polarity mismatch reduces.Notice, when starter motor according to the present invention is with internal combustion engine drive and used time of doing of playing generator, increased the energy output of generator.In addition, compare with the situation that wherein heteropole magnetic part forms in whole direction of rotation, can reduce the length of heteropole magnetic part in direction of rotation.Therefore, can reduce the area that heteropole magnetic part occupies in predetermined magnet, and suppress starter motor because the output that exists heteropole magnetic part to cause reduces (the 3rd object).

The starter motor with internal combustion engine control signal output function can have a plurality of phase transducers of arranging in direction of rotation, and has for generating expression by the combined information generating apparatus of the combined information of the crank position signal of described a plurality of phase transducers outputs.

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

When what interval, inside edge Lx by based on signal detected the conventional engines control signal shown in Figure 16, ignore part when grasping the absolute rotational position of output shaft, long for grasping required time Lxa.On the other hand, according to above-mentioned disclosure, owing to having produced the combined information that represents each signal combination, can promote to grasp the absolute rotational position minimizing of required time by implementing to differentiate based on described combined information.

As the particular instance of " combined information ", for example, from the ON/OFF signal of a plurality of phase transducers (, U phase transducer, V phase transducer and W phase transducer) output, be expressed as the binary number of " 0 " or " 1 ".So, for example, by corresponding digital distribution is corresponding with combinations thereof information to 3 system numbers of the output generation of the output of U phase transducer, the output of V phase transducer and W phase transducer.

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

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

In predetermined combinations, absolute rotational position during combination can be specified uniquely.For example, in the situation that the starter motor (electric rotating machine) shown in Fig. 5 (Figure 18), when combined information comprises engine control signal and its for " 0 " (referring to the reference character tb in Figure 18), because the signal of now exporting from phase transducer can be designated as, not motor control signal but internal combustion engine control signal, can calculate absolute rotational position.

In above-mentioned disclosure from this starting point, because combined information based on current time place calculates absolute rotational position, can be in the situation that do not need to wait for that for example absolute rotational position is grasped in the record accumulation of the output record of phase transducer and the record of combined information.

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

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

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

The starter motor with internal combustion engine control signal output function can have the specified device of specifying next combined information start to turn to the rotary actuation that calculates absolute rotational position from internal combustion engine during for the combined information based on current time.During rotariling actuate, can the result based on by described specified device appointment determine the energising Control the content to the coil corresponding with phase transducer.

Notice, when the energising timing control (motor control) based on motor control signal, whether next time from the motor control signal of phase transducer output be the N utmost point or the S utmost point, and set the energising Control the content corresponding to next magnetic pole if must grasp.In addition,, during not grasping even therein the rotary actuation of absolute rotational position, can specify next magnetic pole by the combined information at current time place in some cases.For example, in the starter motor (electric rotating machine) in Fig. 5 (Figure 18), when the combined information at current time place is " 3 ", next combined information is appointed as to " 2 ", and determines that the next magnetic pole corresponding with U phase coil 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 specified the content of the signal of next time exporting from phase transducer, and determines energising Control the content.Therefore, even, during rotariling actuate, do not need the accumulation of combined information record, and can determine the energising Control the content of answering with next pole pair.

In described a plurality of phase transducer at least two can be arranged on the swing-around trajectory of heteropole magnetic part.

According to above-mentioned disclosure, owing to can turning at the output shaft of internal combustion engine the detection number of times that increases heteropole part between a refunding, can promote to grasp the minimizing of the time of absolute rotational position.

For example; in the time for example can not determining next combined information from a plurality of candidate value middle fingers owing to starting from stopped status to rotarily actuate; one of selecting from described candidate value is assumed to next combined information, then controls the energising to the coil corresponding with phase transducer.Result is, when the output at transducer after the scheduled time does not change, determines that rotor does not rotate and of selecting from all the other candidate values is assumed to next combined information, and control the energising to the coil corresponding with phase transducer.

For example, in the situation that the starter motor shown in Fig. 7 (electric rotating machine), do not calculate therein the dwell time of absolute rotational position, when the combined information at current time place comprises engine control signal and is " 0 ", can not determine whether next combined information is " 3 " or " 6 ".Like this, when can not determine next combined information, according to above-mentioned disclosure, (for example, " 3 ") will selecting from candidate value " 3 " and " 6 " are defined as next combined information and implement energising and control (motor drives and controls).Result is, when when not changing through combined information " 0 " after the scheduled time, that is to say, when motor is not driven in rotation, a value " 6 " of selecting from all the other candidate values is defined as to next combined information, and again implements energising control.Owing to sequentially implementing with all candidate values, energising is controlled until enforcement rotarilys actuate, and even can in the time can not specifying next combined information, realize motor and drive.

Notice, for example, in the situation that the starter motor shown in Figure 18, do not calculate therein the dwell time of absolute rotational position, when the combined information at current time place comprises engine control signal and is " 2 " (referring to reference character tc), can not determine whether next combined information is " 2 " or " 6 ".Like this, when can not determine next combined information, according to above-mentioned disclosure, (for example, " 2 ") will selecting from candidate value " 2 " and " 6 " are assumed to next combined information and implement energising and control (motor drives and controls).Result is, when when not changing through combined information " 0 " after the scheduled time, that is to say, when motor is not driven in rotation, a value " 6 " of selecting from all the other candidate values is assumed to next combined information, and implements energising control.Owing to sequentially implementing energising with all candidate values, control, until implement to rotarily actuate, even can in the time can not specifying next combined information, realize motor and drive.

When normally not implementing yet motor as all a plurality of candidate values being sequentially defined as to the result that next combined information controls and drive, can implement to control by the order that is different from first front sequence.

For example, in the situation that the starter motor shown in Figure 19, when the combined information at computing interval starting time current time place is " 0 " (referring to reference character tf, tg and th), as the situation of Figure 18 described above, can not determine whether next combined information is " 3 ", " 2 " or " 6 ".That is to say, for example, when the combined information " 0 " at current time place is attributed to reference character tf, supposes that next combined information is for " 3 ", and implement energising and control, then can normally implement motor and drive.In addition,, when the combined information " 0 " at current time place is attributed to reference character tg, determine that next combined information is for " 2 ".When the combined information " 0 " at current time place is attributed to reference character th, supposes that next combined information is for " 6 ", and implement energising and control, then can normally implement motor and drive.Yet, in the example of Figure 19, can not determine whether the information " 0 " at computing interval starting time current time place is attributed to reference character tf, tg or th.

Therefore, suppose that next combined information is for " 3 ", and implement energising and control.Result is, in the time can not normally implementing motor driving, to suppose that next combined information is for " 2 ", and implement energising and control.Result is, in the time can not normally implementing motor driving, to suppose that next combined information is for " 6 ", and implement energising and control.Yet as shown in Figure 19, when setting like this, so that while there is continuously three or more combined information that can not appointment, in some cases, when sequentially implementing with " 3 ", " 2 " and " 6 " as mentioned above, 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 according to " 3 ", implements energising and control.Result is in some cases, to make it turn to the phase place of th.In this case, owing to can not normally implementing motor, drive, suppose that it is next time in tg, and according to " 2 ", implement energising and control, then make it turn to the phase place of tg.In this case, owing to can not normally implementing motor, drive, suppose that it is next time in th, and according to " 6 ", implement energising and control.Therefore,, when there is phase shift by which, even, when implementing energising control with all candidate values " 3 ", " 2 " and " 6 ", can not normally implement motor and drive.

In above-mentioned disclosure from this starting point, for example, when with all a plurality of candidate values " 3 ", " 2 " and " 6 " in order (, 3 → 2 → 6) implement that energising is controlled but still can not normally implement motor and drive time, suppose that next combined information in the order different from first front sequence (for example, 2 → 3 → 6), and implement energising and control.Therefore,, due to the chance having provided not cause that the order enforcement of above-mentioned phase shift is controlled, can normally implement motor and drive.

Can the renewal timing based on combined information come the duration of ignition of controlling combustion engine or fuel to spray.

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

Notice, above-mentioned disclosure is not limited to use the renewal timing of all combined informations.For example, can so arrange, so that among all renewal timings, only use the renewal timing identical with the timing of wherein U phase signals and the variation of V phase signals, and the identical renewal timing of the timing with wherein W phase signals changes is not used for controlling the duration of ignition etc.Alternatively, can so arrange, so that among all renewal timings, the only renewal timing at the degree in crank angle place in preset range, such as being only used to control the duration of ignition near the timing compression travel of controlling the duration of ignition etc.According to these configurations, can improve the precision of control, reduce to control the load of processing simultaneously.

Can in the gap of a plurality of tooth portion, a plurality of phase transducers be set.In the time of in adjacent segment among may forbidding described a plurality of phase transducers to be arranged on a plurality of gaps of arranging along direction of rotation, transducer can be set dispersedly.

U phase transducer, V phase transducer and W phase transducer can be arranged in the gap of a plurality of tooth portion, and at least two in U phase transducer, V phase transducer and W phase transducer can be set as to described phase transducer.May forbid described a plurality of phase transducer be arranged on the adjacent segment among a plurality of gaps of arranging along direction of rotation in time, transducer can be set dispersedly.

Rotational position sensor and phase transducer are arranged in the gap of a plurality of tooth portion.In the time of in adjacent segment among may forbidding rotational position sensor and the phase transducer to be arranged on a plurality of gaps of arranging along direction of rotation, transducer can be set dispersedly.

Notice, because the quantity of the transducer as phase transducer is large, can be increased in output shaft and turn over the number of times that detects heteropole part between a refunding.Therefore, can reduce to start to rotate to from internal combustion engine and heteropole magnetic part (heteropole magnetic part) detected to grasp the required time of absolute rotational position.Yet, when the interval of set phase transducer is too narrow, can not fully reduce to start to rotate to from internal combustion engine heteropole part being detected to grasp the required time of absolute rotational position.In above-mentioned disclosure from this starting point, forbid a plurality of phase transducers to be arranged in adjacent segment, and dispersedly transducer is set.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, so that predetermined magnet and heteropole part are arranged (arrangement) in direction of rotation.

For example, as shown in Figure 4 (a), by predetermined magnet 32S(A) middle body in three parts being divided into along direction of rotation is formed heteropole part (heteropole magnetic part 34) so that the part representing with reference character P and heteropole magnetic part 34 along direction of rotation at described predetermined magnet 32S(A) in layout.Alternatively, as shown in Figure 4 (b), by described predetermined magnet 32S(A) a heteropole part (heteropole magnetic part 34) being formed in direction of rotation in two parts being divided into so that the part representing with reference character Q and heteropole magnetic part 34 along direction of rotation at predetermined magnet 32S(A) in layout.

Like this, according to above-mentioned disclosure, because heteropole magnetic part is formed in a part for predetermined magnet in direction of rotation, compare with the traditional structure in its Fig. 9 forming in whole direction of rotation, can reduce the magnet short-cut path length in direction of rotation (vertical direction in Fig. 4 (b)) between predetermined magnet and heteropole magnetic part.Therefore,, when the used time of doing that electric rotating machine according to the present invention plays starter motor, can suppress reducing of starter motor output.In addition, can not avoid heteropole partly and between the tooth portion relative with predetermined magnet to occur polarity mismatch, yet, according to above-mentioned disclosure, because heteropole area partly reduces in direction of rotation (horizontal direction in Fig. 4 (a) and Fig. 4 (b)), what the starter motor (electric rotating machine) that can suppress to cause according to polarity mismatch was exported 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, increased the energy output of generator.In addition, compare with the situation that wherein heteropole magnetic part forms in whole direction of rotation, the length of heteropole magnetic part in direction of rotation can be shorter.Therefore, can reduce the heteropole part area occupied with respect to predetermined magnet, and suppress electric rotating machine (starter motor or generator) owing to existing the output that heteropole partly causes to reduce.

Can so arrange, so that the polarity of predetermined magnet is positioned at the both sides of heteropole part along direction of rotation.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, in the situation that the bipartite structure as shown in Fig. 4 (b) (Figure 27 (b)), can utilize transducer to detect contiguous predetermined magnet 32S(A) two magnets (in abutting connection with magnet 32N(B) and (C)) in one, in abutting connection with magnet 32N(B) and predetermined magnet 32S(A) between the timing (rectification timing or the timing that commutates) of change in location.Yet, can not detect another in abutting connection with magnet 32N(C) and predetermined magnet 32S(A) between rectification timing.On the other hand, because above-mentioned disclosure has three separation structures as shown in Fig. 4 (a) (Figure 27 (a)), can detect about both sides in abutting connection with magnet 32N(B) and rectification timing (C).Therefore, can promote the to switch on adjusting of selection timing of Control the content.

In addition, according to above-mentioned disclosure, the polarity (referring to reference character Q) that is divided into two parts and predetermined magnet with predetermined magnet wherein is only positioned at the situation of a side of heteropole part and compares as shown in figure (b) (Figure 27 (b)), 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 further reduce the occupied area of heteropole part of polarity mismatch.In addition, can promote inhibition that the output of electric rotating machine (starter motor or generator) is reduced.

Phase transducer can be arranged on the position different from rotational position sensor along direction of rotation, and can be arranged on the swing-around trajectory of heteropole magnetic part.When phase transducer detects heteropole magnetic part, substitute motor control signal, the internal combustion engine control signal of the absolute rotational position of the exportable expression output shaft of phase transducer.

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

Notice, contrary with above-mentioned disclosure, when heteropole magnetic part is formed in predetermined magnet in whole direction of rotation, phase transducer can not detect the polarity of predetermined magnet.Therefore, can not accurately grasp from predetermined magnet wherein in the state variation of the location, detection position of phase transducer to wherein in abutting connection with the timing (rectification timing) of the state of magnet location.Therefore, existence can not accurately be controlled the worry into suitable timing by changing the timing that the energising of coil is controlled.

On the other hand, because the polarity of predetermined magnet is positioned at the both sides of heteropole magnetic part along direction of rotation, can accurately grasp the rectification timing about phase transducer, and by expansion, the variation timing of energising Control the content accurately can be controlled as approximate timing.

The starter motor with internal combustion engine control signal output function can be applied on vehicle, described vehicle is using described internal combustion engine as the drive source that travels, and there is torque-transmitting mechanisms, with the rotating speed at output shaft, be 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, when utilizing phase transducer to export as mentioned above internal combustion engine control signal, existence can not be controlled Content Implementation motor control and by the direction rotation with required opposite direction, drive the worry of starter motor with suitable energising, because can not determine that the signal of exporting from phase transducer is motor control signal or internal combustion engine control signal from stopping is rotariling actuate time.

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

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

Notice, contrary with above-mentioned disclosure, when crank axle and rotor are connected via the Poewr transmission mechanism of for example belt or gear, due to the backlash of gear, there is skew in the elongations of belt etc. between the rotatable phase of crank axle and the rotatable phase of rotor.Therefore, the absolute rotational position based on be attached to the crank axle that internal combustion engine control signal that epitrochanterian heteropole partly obtains and export calculates by detection is the value with respect to actual absolute rotational position skew.

Above-mentioned disclosure is from this starting point applicable to such vehicle, wherein, because rotor is fixed on crank axle and all the time with the rotational speed identical with crank axle, can reduce the absolute rotational position that calculates based on internal combustion engine control signal and the skew between 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 when internal combustion engine stops can being redefined for and stopping estimating position.Phase transducer and heteropole part can so arrange, so that heteropole part (heteropole magnetic part) is positioned at the position that shifts to an earlier date scheduled volume from the position relative with phase transducer, thereby described in avoiding, stop estimating position.

Notice, contrary with above-mentioned disclosure, output shaft stops under the state that stops estimating position therein, when heteropole part (heteropole magnetic part) is in the position relative with phase transducer or during the position of slightly delaying from this relative position, in not grasping the dwell time of absolute rotational position, export internal combustion engine control signal.In this case, probably can not control Content Implementation motor control with suitable energising.

In above-mentioned disclosure from this starting point, output shaft stops under the state that stops estimating position therein, the position that heteropole part (heteropole magnetic part) shifts to an earlier date slightly in the position from relative with phase transducer.Therefore, can reduce with suitable energising, not control as mentioned above the possibility of Content Implementation motor control.

The absolute rotational position with the high likelihood that output shaft stops when internal combustion engine stops can being redefined for and stopping estimating position (for example, from about BTDC150 ° in the scope of top dead-centre TDC).At output shaft, stop under the state that stops estimating position, phase transducer and heteropole part (heteropole magnetic part) is so set, so that heteropole part (heteropole magnetic part) is in the position relative with phase transducer (or rotational position sensor) or delay the position of scheduled volume from the position relative with phase transducer (or rotational position sensor).

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

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

According to the above-mentioned disclosure of part using nonmagnetic portion as heteropole in this way, from wherein using the heteropole magnetic part that is magnetized to the polarity different with predetermined magnet as heteropole the situation of part compare, the present invention is favourable in the following areas.That is to say, owing to having saved, the magnetization of generation heteropole magnetic part (heteropole part) is processed and only by forming otch, form nonmagnetic portion (heteropole part), can realize at an easy rate the formation of heteropole part.

In addition, contrary with above-mentioned disclosure, when heteropole magnetic part is used as heteropole part, along direction of rotation (vertical direction in Fig. 4 (a) and Fig. 4 (b)), between predetermined magnet and heteropole magnetic part, there is magnet short-cut path.In this, the above-mentioned disclosure according to the part using nonmagnetic portion as heteropole, can reduce magnet short-cut path amount, and suppresses the minimizing that reduces or export as the energy output of generator of starter motor output.

Can provide U phase coil, V phase coil and W phase coil to using as described coil.Can provide output for controlling, the U phase signals of the energising timing of U phase coil to be usingd and the V phase signals of the energising timing of V phase coil usingd and the W phase signals of the energising timing of W phase coil usingd as at least one of the W phase transducer of motor control signal for controlling as the V phase transducer of motor control signal and output for controlling as the U phase transducer of motor control signal, output.At least one in U phase transducer, V phase transducer and W phase transducer is arranged on the swing-around trajectory of heteropole part (heteropole magnetic part) as position transducer.

Like this, in the situation that there is the three-phase starter motor (electric rotating machine) of U phase coil, V phase coil and W phase coil, can utilize each transducer output internal combustion engine control signal of the output motor control signal corresponding with each coil.Notice, even, the in the situation that of three-phase starter motor, in some cases, all U phase transducers, V phase transducer and W phase transducer may be set.Predetermined disclosure is applicable to this starter motor.For example, when W phase transducer is not set, the outgoing position of the output estimation W phase transducer based on U phase transducer or V phase transducer.Signal based on estimating is to the control of switching on of W phase coil.

In addition, all U phase transducers, V phase transducer and W phase transducer can be controlled for exporting internal combustion engine, or in two transducers one can be used for exporting internal combustion engine control signal.Due to the increase of the quantity of the transducer along with using, the detection number of times that turns over heteropole part between a refunding at the output shaft of internal combustion engine increases, and 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 these embodiment and structure.The present invention should be contained various modification and equal configuration.In addition, although disclose various combinations and structure, comprise that other combination more, still less or only single element and structure also fall within the spirit and scope of the present invention.

Claims

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

By the rotor (30) of magnet (32N, the 32S) formation with opposed polarity is alternately set along direction of rotation;

Stator (40) by arranging that along described direction of rotation a plurality of tooth portions (41) form, is wherein wound with coil (CU, CV, CW) in each tooth portion (41); And

Be attached to the phase transducer (SU, SV, SW) of crank position signal corresponding to position relative with described magnet (32N, 32S) in described stator (40) and output and the polarity of described rotary magnet (32N, 32S),

The heteropole part (34,34k) that is wherein geomagnetic into the polarity different from predetermined magnet (32N, 32S) among described a plurality of magnets (32N, 32S) or is not geomagnetic into any polarity is formed in a part for described predetermined magnet, and

Wherein said phase transducer (SU, SV, SW) is arranged on together with described rotor (30) on the swing-around trajectory of the described heteropole part of rotating (34,34k), and when described phase transducer (SU, SV, SW) detects described heteropole part (34,34k), described phase transducer (SU, SV, SW) output represents the internal combustion engine control signal of absolute rotational position of the output shaft (14) of internal combustion engine.

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

A plurality of phase transducers (SU, SV, SW) arrange along described direction of rotation, and

Wherein said electric rotating machine also comprises for generating expression from the combined information generating apparatus (S20) of the combined information of the combination of the crank position signal of described a plurality of phase transducers (SU, SV, SW) output.

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

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

5. according to the electric rotating machine with internal combustion engine control signal output function described in any one in claim 2 to 4, it is characterized in that, also comprise the specified device (13) of specifying next combined information for the combined information based on current time start to rotate to the rotary actuation that calculates described absolute rotational position from described internal combustion engine during

Wherein, during described rotary actuation, the result based on by described specified device (13) appointment is determined the energising Control the content to the coil (CU, CV, CW) corresponding with described phase transducer (SU, SV, SW).

6. according to the electric rotating machine with internal combustion engine control signal output function described in any one in claim 2 to 5, it is characterized in that, in described a plurality of phase transducers (SU, SV, SW) at least two are arranged on the swing-around trajectory of described heteropole part (34,34k).

7. according to the electric rotating machine with internal combustion engine control signal output function described in any one in claim 2 to 6, it is characterized in that,

When can not be from the fixed next combined information of a plurality of candidate value middle fingers, suppose that of selecting is next combined information from described candidate value, and control the energising to the coil (CU, CV, CW) corresponding with described phase transducer (SU, SV, SW), and

Wherein, result is, when the output through described transducer after the scheduled time does not change, determine that described rotor (30) does not rotate, suppose from one that selects among all the other candidate values be next combined information, and sequentially control the energising to the coil (CU, CV, CW) corresponding with described phase transducer (SU, SV, SW).

8. according to the electric rotating machine with internal combustion engine control signal output function described in any one in claim 2 to 7, it is characterized in that, the duration of ignition of internal combustion engine or fuel spray described in the renewal timing control based on described combined information.

9. according to the electric rotating machine with internal combustion engine control signal output function described in any one in claim 2 to 8, it is characterized in that, described a plurality of phase transducers (SU, SV, SW) are arranged in the gap of described a plurality of tooth portions (41), and

In the time of wherein in the adjacent segment among forbidding described a plurality of phase transducers (SU, SV, SW) to be arranged on a plurality of gaps of arranging along described direction of rotation, described a plurality of phase transducer (SU, SV, SW) is set dispersedly.

10. according to the electric rotating machine with internal combustion engine control signal output function described in any one in claim 1 to 9, it is characterized in that, described heteropole part (34,34k) is formed at along described direction of rotation in a part of described predetermined magnet (32N, 32S), and (34,34k) are along described direction of rotation layout so that described predetermined magnet (32N, 32S) and described heteropole part.

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

12. according to the electric rotating machine with internal combustion engine control signal output function described in any one in claim 1 to 11, it is characterized in that, described electric rotating machine is applied in vehicle, described vehicle is using described internal combustion engine as the drive source that travels, and there is torque-transmitting mechanisms, with the rotating speed at described output shaft (14), be equal to or higher than under the condition of predetermined value the driving wheel to vehicle by the transmission of torque of described output shaft (14).

13. according to the electric rotating machine with internal combustion engine control signal output function described in any one in claim 1 to 12, it 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 the rotational speed identical with described crank axle (14).

14. according to the electric rotating machine with internal combustion engine control signal output function described in any one in claim 1 to 13, it is characterized in that,

The absolute rotational position of the high likelihood that output shaft described in having when internal combustion engine stops (14) stops is redefined for and stops estimating position, and

Wherein said phase transducer (SU, SV, SW) and described heteropole part (34,34k) are configured such that described heteropole part (34,34k) is in shifting to an earlier date the position of scheduled volume from the position relative with described phase transducer (SU, SV, SW), thereby described in avoiding, stop estimating position.

15. according to the electric rotating machine with internal combustion engine control signal output function described in any one in claim 1 to 13, it is characterized in that,

Wherein said phase transducer (SU, SV, SW) and described heteropole part (34,34k) is configured such that to stop under the state of estimating position described in stopping at described output shaft (14), and described heteropole part (34,34k) is delayed the position of scheduled volume in the position relative with described phase transducer or from the position relative with described phase transducer (SU, SV, SW).

16. according to the electric rotating machine with internal combustion engine control signal output function described in any one in claim 1 to 15, it is characterized in that, described heteropole part (34,34k) is for not being geomagnetic into the nonmagnetic portion (34k) of the N utmost point or the S utmost point, and it is for by the formed space of a part of the described predetermined magnet of excision (32N, 32S).

17. according to the electric rotating machine with internal combustion engine control signal output function described in any one in claim 1 to 16, it is characterized in that,

The motor control signal that described phase transducer (SU, SV, SW) output is corresponding with the polarity of described rotary magnet (32N, 32S),

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

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

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

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

Wherein output is usingd and the V phase signals of the energising timing of described V phase coil (CV) is usingd and the W phase signals of the energising timing of described W phase coil (CW) usingd and is provided as at least one of the W phase transducer (SW) of described motor control signal for control as the V phase transducer (SV) of described motor control signal and output for controlling as the U phase transducer (SU) of described motor control signal, output the U phase signals of the energising timing of described U phase coil (CU) for controlling, and

At least one in wherein said U phase transducer (SU), described V phase transducer (SV) and described W phase transducer (SW) is arranged on the swing-around trajectory of described heteropole part (34,34k) as described phase transducer (SU, SV, SW).

19. 1 kinds of starter motors with internal combustion engine control signal output function, described starter motor comprises:

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

Wherein by the motor control signal based on detecting, control the energising timing of described coil (CU, CV, CW) is rotarilyd actuate to described starter motor, thus the output shaft (14) of rotary actuation internal combustion engine,

The heteropole magnetic part (34,34k) that is wherein geomagnetic into the polarity different from predetermined magnet (32N, 32S) among described a plurality of magnets (32N, 32S) is formed in a part of described predetermined magnet (32N, 32S) in whole described direction of rotation, and

Wherein said phase transducer (SU, SV, SW) is arranged on the swing-around trajectory of the described heteropole magnetic part (34) rotating together with described rotor (30), and when described phase transducer (SU, SV, SW) detects described heteropole magnetic part (34), substitute described motor control signal, described phase transducer (SU, SV, SW) output represents the internal combustion engine control signal of the absolute rotational position of described output shaft.

20. 1 kinds of starter motors with internal combustion engine control signal output function, described starter motor comprises:

Wherein said starter motor also comprises:

By a part for the predetermined magnet (32N, 32S) among described a plurality of magnets (32N, 32S) is magnetized to and is different from the polarity of described magnet (32N, 32S) and the heteropole magnetic part (34) forming in whole described direction of rotation; And

Be arranged on together with described rotor (30) on the swing-around trajectory of the described heteropole magnetic part (34) rotating and detect described heteropole magnetic part (34) to export the rotational position sensor (SE) of the internal combustion engine control signal of the absolute rotational position that represents described output shaft (14), and

Wherein except described rotational position sensor, described phase transducer (SU, SV, SW) is also arranged on described swing-around trajectory, and when described phase transducer (SU, SV, SW) detects described heteropole magnetic part (34), substitute described motor control signal, described phase transducer (SU, SV, SW) output represents the internal combustion engine control signal of the absolute rotational position of described output shaft (14).

21. 1 kinds of starter motors with internal combustion engine control signal output function, described starter motor comprises:

Wherein said starter motor also comprises:

Be formed in the part of the predetermined magnet (32N, 32S) among described a plurality of magnet (32N, 32S) 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 in a part of described predetermined magnet (32N, 32S) along described direction of rotation.

22. starter motors with internal combustion engine control signal output function according to claim 21, it is characterized in that, described heteropole magnetic part (34) is formed and makes the polarity of described predetermined magnet (32N, 32S) along described direction of rotation, be positioned at the both sides of described heteropole magnetic part (34).

23. according to the starter motor with internal combustion engine control signal output function described in claim 21 or 22, it is characterized in that, described phase transducer (SU, SV, SW) along described direction of rotation, be arranged on and be different from the position of described rotational position sensor (SE) and be arranged on the swing-around trajectory of described heteropole magnetic part (34), and as described phase transducer (SU, SV, while SW) described heteropole magnetic part (34) being detected, substitute described motor control signal, described phase transducer (SU, SV, SW) output represents the internal combustion engine control signal of the absolute rotational position of described output shaft.

24. according to claim 19 to the starter motor with internal combustion engine control signal output function described in any one in 23, it is characterized in that, U phase coil (CU), V phase coil (CV) and W phase coil (CW) are provided, and using as described coil (CU, CV, CW)

At least one in wherein said U phase transducer (SU), described V phase transducer (SV) and described W phase transducer (SW) is arranged on the swing-around trajectory of described heteropole magnetic part (34,34k) as described phase transducer (SU, SV, SW).

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

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

27. according to the starter motor with internal combustion engine control signal output function described in claim 25 or 26, it is characterized in that, the record based on described combined information calculates absolute rotational position.

28. according to the starter motor with internal combustion engine control signal output function described in any one in claim 25 to 27, it is characterized in that, also comprise the specified device (13) of specifying next combined information for the combined information based on current time start to rotate to the rotary actuation that calculates described absolute rotational position from described internal combustion engine during

29. according to the starter motor with internal combustion engine control signal output function described in any one in claim 25 to 28, it is characterized in that,

In the time can not determining next combined information from a plurality of candidate value middle fingers, suppose that from one that selects among described candidate value be next combined information, then control the energising to the coil (CU, CV, CW) corresponding with described phase transducer (SU, SV, SW), and

Wherein, result is, when the output through described transducer after the scheduled time does not change, judge that described rotor (30) does not rotate, and supposition is next combined information from of selecting among all the other candidate values, and controls the energising to the coil (CU, CV, CW) corresponding with described phase transducer (SU, SV, SW).

30. starter motors with internal combustion engine control signal output function according to claim 29, it is characterized in that, for all described a plurality of candidate values, sequentially determine that described candidate value is next combined information and implements to control, result is, when normally implementing not yet motor driving, with the order different from first front sequence, implement to control.

31. according to the starter motor with internal combustion engine control signal output function described in any one in claim 25 to 30, it is characterized in that, the duration of ignition of internal combustion engine or fuel spray described in the renewal timing control based on described combined information.

32. according to the starter motor with internal combustion engine control signal output function described in any one in claim 24 to 31, it is characterized in that,

Described U phase transducer (SU), described V phase transducer (SV) and described W phase transducer (SW) are arranged in the gap of described a plurality of tooth portions (41),

At least two in wherein said U phase transducer (SU), described V phase transducer (SV) and described W phase transducer (SW) are set to described phase transducer (SU, SV, SW), and

33. according to claim 19 to the starter motor with internal combustion engine control signal output function described in any one in 31, it is characterized in that, also comprise rotational position sensor (SE), this rotational position sensor (SE) is arranged on the swing-around trajectory of the described heteropole magnetic part (34) rotating together with described rotor (30), and detect described heteropole magnetic part (34), the internal combustion engine control signal that represents the absolute rotational position of described output shaft (14) with output

Wherein said rotational position sensor (SE) and described phase transducer (SU, SV, SW) are arranged in the gap of described a plurality of tooth portions (41), and

In the time of wherein in the adjacent segment among forbidding described rotational position sensor (SE) and the described phase transducer (SU, SV, SW) to be arranged on a plurality of gaps of arranging along described direction of rotation, described rotational position sensor (SE) and described phase transducer (SU, SV, SW) are set dispersedly.

34. according to claim 19 to the starter motor with internal combustion engine control signal output function described in any one in 33, it is characterized in that,

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

35. according to claim 19 to the starter motor with internal combustion engine control signal output function described in any one in 34, it is characterized in that,

Wherein said phase transducer (SU, SV, SW) is configured such that with described heteropole magnetic part (34) described heteropole magnetic part (34) is in shifting to an earlier date the position of scheduled volume from the position relative with described phase transducer (SU, SV, SW), thereby described in avoiding, stops estimating position.

36. according to claim 19 to the starter motor with internal combustion engine control signal output function described in any one in 34, it is characterized in that,

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

37. according to claim 19 to the starter motor with internal combustion engine control signal output function described in any one in 34, it is characterized in that, also comprise rotational position sensor (SE), this rotational position sensor (SE) is arranged on the swing-around trajectory of the described heteropole magnetic part (34) rotating together with described rotor (30), and detect described heteropole magnetic part (34), the internal combustion engine control signal that represents the absolute rotational position of described output shaft (14) with output

Wherein at described output shaft (14), stop under the state of estimating position described in stopping at, described heteropole magnetic part (34) is configured such that described heteropole magnetic part (34) in the position relative with described phase transducer (SU, SV, SW) or described rotational position sensor (SE) or from delaying the position of scheduled volume with described phase transducer (SU, SV, SW) or the relative position of described rotational position sensor (SE).