CN101240847B - Apparatus for controlling automatic transmission - Google Patents
Apparatus for controlling automatic transmission Download PDFInfo
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- CN101240847B CN101240847B CN2007103005399A CN200710300539A CN101240847B CN 101240847 B CN101240847 B CN 101240847B CN 2007103005399 A CN2007103005399 A CN 2007103005399A CN 200710300539 A CN200710300539 A CN 200710300539A CN 101240847 B CN101240847 B CN 101240847B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/04—Combinations of toothed gearings only
- F16H37/042—Combinations of toothed gearings only change gear transmissions in group arrangement
- F16H37/043—Combinations of toothed gearings only change gear transmissions in group arrangement without gears having orbital motion
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Abstract
In an automatic speed changer having a clutch and a gear-type speed changer, when a driver is determined that he/she has an intension to stop a vehicle, the clutch is disengaged and the gear-type speed changer is shifted to a neutral position. After that the clutch is held in a disengaged state, and when an accelerator opening is more than a predetermined value, the gear-type speed changer is shifted to a speed stage corresponding to a vehicle speed so as to engage the clutch. When the conditions that the driver has an intension to decelerate, an engine is determined that it is in an idle-up state, and a vehicle speed is less than a predetermined value are satisfied, the gear-type speed changer is shifted to the neutral position. Whether the engine is in the idle-up state or not is determined by the amount of fuel injection.
Description
The application divides an application for following application:
The international filing date of original application: on October 21st, 2003
The application number of original application: 200380101728.3 (international application no: PCT/JP2003/013445)
The denomination of invention of original application: the control gear of automatic transmission
Technical field
The present invention relates to a kind of control gear of gear type automatic transmission, relate more specifically to be equipped with the raising of speed of response of the automatic transmission of clutch.And, the invention still further relates to a kind of technology of hanging the steady parking of control period at sky.In addition, the present invention also is particularly related to and is used for eliminating the technology of bump situation of synchromesh mechanism of gear change control gear auxiliary gear box of multiple-speed gear-box that auxiliary gear box is connected to output one side of basic trnasmission.
Background technique
In recent years, used automatic mechanical transmission, this automatic mechanical transmission by application electric technology control friction clutcch and gear transmission automatically according to running state conversion gear.In automatic mechanical transmission, owing to there is not hydraulic clutch (torque converter) in the driving force transmission system from the motor to the driving wheel, the transmission efficiency of driving force is very high, therefore can improve the consumption of fuel.And owing to there is not the distinctive slide sensor of hydraulic clutch, the drive performance of vehicle has also had improvement.
In gear transmission, after gear was transformed neutral position, driving force was separated from motor.Therefore, in the automatic mechanical transmission, when vehicle when travelling state stops, after gear transmission transforms to neutral position, engage the control of friction clutcch usually.And, as the applicant Japanese unexamined patent publication NO.2001-227630 and before application (Japanese patent application NO.2001-92119) described in, in the gear change control of automatic mechanical transmission, a kind of technology is proposed, in this technology, when gear transmission transforms to neutral position but before vehicle be about to stop the time, again to quicken and once quicken operation in order to reach, speed changer will transform to best gear according to the speed of vehicle.
But in automatic mechanical transmission, friction clutcch separates with actuator and engages.Therefore, when vehicle should stop, if be transformed neutral gear at gear transmission, and friction clutcch was when being engaged, even then once quicken operation, for conversion gear friction clutcch still needs to be separated once more in order to quicken again.Therefore, speed of response is not satisfied.
Therefore, consider the problem of existence described above, the control gear that the purpose of this invention is to provide a kind of automatic transmission, after transforming to neutral position, keep the separated state of friction clutcch at vehicle gear transmission when travelling state stops, this control gear need not separate friction clutcch when vehicle quickens again, so that speed of response is improved.
On the other hand, for the rotation of stablizing motor when the low water temperature, and finish heating rapidly, vehicle motor all is equipped with a sky and mounts and put.Mount for this sky and to put, the manual sky of controlling the idle running volume and increase engine speed by the driver when having idle running mounts automatic sky that the temperature of putting and depending on cooling water when idle running is increased to engine speed predetermined value (the empty rotating speed of hanging) automatically and mounts and put.Use these skies to mount and put, the fuel quantity that is provided is controlled, so that keep the empty rotating speed of hanging, therefore the rotating speed of motor can almost remain unchanged when work loads changes.
Accordingly, in that being set, above-described sky mounts in the vehicle of putting with automatic mechanical transmission, sky hang speed setting must be than the big situation of the rotating speed that transforms to neutral position under, when carrying out the control of sky extension, even the driver is in order to stop and the brake activation device from travelling state, the rotating speed of motor can not be less than or equal to the rotating speed that transforms to neutral position yet, and gear transmission can not enter neutral position yet.
Therefore, for the rotating speed that forces motor reduces, the driver must use than brake petal under bigger the defeating of needs, engine speed is reduced to is lower than the rotating speed that transforms to neutral position, and gear transmission is set to neutral gear.Such mode of operation, the operation feeling of break are to make us uncomfortable.And make the actual load on the break be increased to the possibility that exceeds the needs load in addition.
Therefore, consider the problem of existence described above, the control gear that the purpose of this invention is to provide a kind of automatic mechanical transmission, be equipped with empty mounting in the vehicle of putting, at vehicle when travelling state stops, this control gear determines that according to the moment of torsion of motor motor is in empty extension state, and transforming gear is arrived neutral position, so that the parking of vehicle is more steady.
And in the tractor of dilatory trailer, because vehicle weight is very big, multiple-speed gear-box often is installed is improved rideability.In recent years, the type of main flow is, in order to reach miniaturization, by auxiliary gear box is connected in series to basic trnasmission and the operative gear series of shared basic trnasmission.In addition, a kind of technology by electronic equipment control mechanical clutch and multiple-speed gear-box realization high efficiency automatic transmission also is suggested (with reference to Japanese unexamined patent publication NO.2001-165294).
For example, an example of multiple-speed gear-box is a kind of like this speed changer, wherein be connected to independently auxiliary gear box of basic trnasmission conduct at the input side and the outlet side of basic trnasmission as auxiliary gear box respectively by separator and gear adapter (range), each gear of basic trnasmission all carries out half grade of speed change, and gear ratio is enlarged to multistage simultaneously.In such multiple-speed gear-box, for transforming gear control is carried out in the load (inertia of synchronous side) that reduces on the synchromesh mechanism in the gear adapter, wherein when basic trnasmission conversion gear adapter during at its neutral position, after the conversion of gear adapter was finished, basic trnasmission was transformed to predefined gear.
What here illustrate in passing is, under the situation that a synchronous side and a side that will be synchronous are stopped fully, the chamfered end with chamfered end that the synchronizer sleeve takes place and clutch ring is the possibility of " the bump situation " of mutual interference mutually in typical synchromesh mechanism.If there is the bump situation to take place, the synchronizer sleeve just can not slide on will be by the direction of the gear of a synchronous side, so gear can not be transformed.Though reduce the frequency that the bump situation takes place by the chamfered end shape of improving synchronizer sleeve and clutch ring, can't avoid this point reliably at present.
When basic trnasmission is set in neutral position and clutch, owing between master gear and main shaft, there is relative rotation to take place, the position relation of the chamfered end of synchronizer sleeve and the chamfered end of clutch ring changes, so the bump situation of basic trnasmission can be easy to avoid.
But in multiple-speed gear-box, because basic trnasmission generation conversion after the conversion of gear adapter is finished, if there is the bump situation to take place in the gear adapter, the conversion of basic trnasmission just can not begin so.Accordingly, because master gear and main shaft do not mesh, although clutch, main shaft does not still rotate.Therefore, can not between main shaft and gear switching gear, produce relative rotation.Accordingly, when having the bump situation to take place in the gear adapter,, must when keeping the gear adapter to be in high gear, start vehicle lentamente for conversion gear adapter.
When vehicle parking, the basic trnasmission most of the time is at neutral position.And, when vehicle when cruising stops, exist the gear adapter to be transformed to many situations of top gear.Accordingly, when vehicle launch, exist the gear adapter must be, be transformed to the such height possibility of bottom gear from top gear under the state that main shaft and gear adapter gear do not rotate, so above-mentioned problem is easy to take place at master gear.
Therefore, consider the problem of existence described above, the transforming gear device that the purpose of this invention is to provide a kind of multiple-speed gear-box, be connected in the multiple-speed gear-box of output one side of basic trnasmission at auxiliary gear box, this transforming gear device is eliminated the bump situation of synchromesh mechanism in the auxiliary gear box by the conversion content that changes transforming gear control.
Summary of the invention
In order to reach above-described goal of the invention, comprise according to the control gear of the automatic transmission of the first embodiment of the present invention: the vehicle driving system that gear transmission and friction clutcch are connected in series; The transforming gear device that is used for change wheel formula speed changer; Be used to separate and the clutch drive apparatus that engages friction clutcch; The working state detection device that is used for the working state of detection of engine; And be used to import detected signal therein from working state detection device, and control signal is outputed to the control unit of transforming gear device and clutch drive apparatus based on detected signal, this control gear is characterised in that
Control unit determines whether driver's parking purpose condition is satisfied, if determine that parking purpose condition is satisfied, control unit separates friction clutcch and gear transmission is transformed to first transforming gear control of neutral position, when the opening of accelerator is equal to or greater than predetermined value, after friction clutcch being separated and gear transmission is transformed to neutral position, control unit carries out gear transmission is transformed to gear according to car speed, and separates second grade of conversion control of friction clutcch.
According to so a kind of structure, when parking purpose condition was satisfied, friction clutcch separated and keeps this state by clutch drive apparatus when the transforming gear device transforms to neutral position with gear transmission.Then, the driver depresses accelerator pedal, when the opening of accelerator during more than or equal to predetermined value, gear transmission is transformed to gear according to car speed, and engage friction clutcch.Therefore, even at vehicle deceleration, then under the situation about under low speed, quickening again, for example slow down at the response stop sign, then again owing to just in time when gear transmission is transformed neutral position before the vehicle parking stop sign change under the situation that needs again to quicken, because friction clutcch keeps separated state, with regard to unnecessary it is separated once more, therefore can transform to travelling state immediately.
When the speed of vehicle was lower than first predetermined value, second transforming gear control can determine, vehicle will carry out quickening (restarting to move) again from the extremely low speed of vehicle before being about to stop.Then by engage gradually via half-clutch state friction clutcch for example just can prevent from when engaging, to take place to impact with to stall.
Separated when friction clutcch, gear transmission passes through the first transforming gear control change behind neutral position, if the speed of a motor vehicle determines that less than second predetermined value littler than first predetermined value vehicle stops.In this case, control unit can be configured to gear transmission is transformed to the startup gear.In this case, when vehicle stopped, because gear transmission is transformed to the startup gear, friction clutcch separated simultaneously, and vehicle can start by only engaging friction clutcch.
Separated at friction clutcch, and after by first transforming gear control gear transmission being transformed to neutral position, if the accelerator opening is less than above-mentioned predetermined value, and car speed is during less than the 3rd predetermined value, and control unit also can be carried out fourth speed bit map control and be used to engage friction clutcch.
Do like this and just can determine similarly that vehicle separates the back at friction clutcch and is about to stop, and gear transmission transforms to neutral position.By engaging friction clutcch under the state that transforms to neutral position at gear transmission, just can be for example one long-time in the maneuver vehicle parking.
Fourth speed bit map control can be controlled, therefore after by the control of first transforming gear friction clutcch being separated and gear transmission transforms to neutral position, when the accelerator opening is held preset time less than the state of above-mentioned predetermined value, engages friction clutcch and be engaged.
Use such structure, can determine similarly that vehicle is about to stop.And, under transforming to neutral state, engage friction clutcch at gear transmission, just can be for example one long-time in the maneuver vehicle parking.
The parking purpose determines that method can determine to transform to the shelves that travel at gear transmission, and break is operated, and the rotational velocity of motor when being lower than predetermined value or car speed and being lower than the 4th predetermined value parking purpose condition be satisfied.
Just, according to the transforming gear state of gear transmission, the working state of break, and the speed of the rotational velocity of motor or vehicle can be easy to determine whether parking purpose condition is satisfied.In other words, transform at gear-shift transmission under the state of the gear that travels, if break work, the rotating speed of motor or the speed of vehicle reduce, and just can determine that at this moment shut-down operation is performed.Therefore, under such state,, just can correctly apply control, wherein reflect driver's purpose by determining that parking purpose condition is satisfied.
The control gear of automatic transmission according to a second embodiment of the present invention comprises: the transforming gear condition checkout gear that is used for the transforming gear state of measuring gear formula speed changer; The transforming gear device that is used for the gear of change wheel formula speed changer; The working state detection device that is used for the detection of engine working state; Be used to import testing signal, and, it is characterized in that according to the control unit of testing signal to transforming gear device output control signal from working state detection device
Control unit determines according to the value that working state detection device detects whether the driver has the purpose of deceleration, and determine according to the Engine torque that working state detection device detects whether motor is in empty extension state, and when determining that the transforming gear state by transforming gear stage detection device detects is the gear that travels, and when determining that by the deceleration purpose method defines the deceleration purpose, and the car speed of determining to be detected by working state detection device is less than first predetermined value, and when hang determining that by sky method determines that motor is in empty extension state, carry out speed-changing gear box is transformed to the transforming gear control of neutral position.
Because such structure determines according to Engine torque whether motor is in empty extension state.When the transforming gear state of determining speed changer is in the gear that travels, the driver has the deceleration purpose, and car speed is lower than first predetermined value, and motor is when being in empty extension state, and speed changer is transformed neutral position.By such way, even under the rotating speed that sky is hung is configured to situation greater than the transforming gear rotating speed of neutral position, when travel phase is stopped, also speed changer can be transformed to neutral position at vehicle.
Determine that for the deceleration purpose it can determine that when break was operated, the driver had the deceleration purpose when perhaps the accelerator opening was less than second predetermined value according to the checkout value of working state detection device.The result, when with vehicle when travel phase is stopped owing to carry out brake operating, or carry out the operation of loosening accelerator pedal from being depressed into, when any of above two kinds of situations or two kinds of situations are satisfied simultaneously, just can think that the driver has the purpose of deceleration.
The above-mentioned empty method of determining of hanging can determine, when with the approximately proportional fuel quantity that offers motor of the Engine torque that is detected by working state detection device during more than or equal to the 3rd predetermined value, motor is in empty extension state.Therefore can avoid controlling the increase of load.
A third embodiment in accordance with the invention, wherein auxiliary gear box comprises at the transforming gear control gear that output one side of basic trnasmission is connected to the multiple-speed gear-box of basic trnasmission: the transforming gear device that is used for the conversion auxiliary gear box; The basic trnasmission converter unit that is used for the conversion basic trnasmission; The auxiliary gear box converter unit that is used for the conversion auxiliary gear box; The working state detection device that is used for the detection of engine working state; With the testing signal that is used to import from working state detection device, and the control unit that control signal is outputed to basic trnasmission converter unit and auxiliary gear box converter unit according to testing signal.
Control unit determines according to the checkout value of working state detection device whether vehicle stops.Secondly, control unit also determines whether to carry out described auxiliary gear box is transformed to the transforming gear operation of the gear that travels by the transforming gear device.When definite vehicle is stopped, determine that simultaneously the transforming gear operation is performed, the conversion of auxiliary gear box converter unit begins to carry out, next, when the conversion of auxiliary gear box is finished, when the conversion of auxiliary gear box was not still finished even perhaps passed through preset time after conversion begins, the conversion of basic trnasmission was begun to carry out by the basic trnasmission converter unit.
Because such structure, when carrying out when vehicle stops the operation of transforming gear to the gear that travels, when causing the conversion of auxiliary gear box, the conversion of auxiliary gear box began before the conversion of basic trnasmission.When the conversion of auxiliary gear box begins, and after finishing, the conversion of basic trnasmission begins.On the other hand, when after even the conversion from auxiliary gear box begins, having passed through the preset time conversion and still not finished, can determine the bump situation takes place in the synchromesh mechanism of auxiliary gear box, the conversion of basic trnasmission does not begin when the conversion of auxiliary gear box is finished.Here, " bump situation " is that a synchronous side of synchromesh mechanism or a side that will be synchronous are stopped fully, and the chamfered end of the chamfered end of synchronizer sleeve and the clutch ring situation of mutual interference mutually.
When the conversion of basic trnasmission begins when the conversion of auxiliary gear box does not finish, conversion in the state that the direction of the gear that the synchronizer sleeve edge of the synchromesh mechanism of basic trnasmission in auxiliary gear box will be synchronous is open.When clutch engages under this state, the main shaft of basic trnasmission and the countershaft of auxiliary gear box will rotate owing to the output from motor, relatively rotate between the synchronizer sleeve of the synchromesh mechanism in they and auxiliary gear box simultaneously.As a result, eliminated the bump situation in the auxiliary gear box, therefore it can be transformed.And, also have the possibility that main shaft is shaken owing to the impact of the conversion of following basic trnasmission, thereby eliminated the bump situation in the auxiliary gear box.
For the method for determining of stopping, it can determine whether vehicle stops according to the car speed that is detected by working state detection device.
In control gear according to the 3rd embodiment's multiple-speed gear-box, clutch further is connected to input one side of basic trnasmission, be provided for simultaneously detecting basic trnasmission transition state the transition state detection device and be used to detect the working state detection device of clutch working state.
Be in neutral position when obtaining basic trnasmission by the detection of transition state detection device, and detect by working state detection device and to obtain clutch when separated, the transforming gear operation determines that method can determine whether to carry out the transforming gear operation that described auxiliary gear box is transformed to the gear that travels.As a result, can correctly detect the purpose that the driver starts vehicle, and the suitable transforming gear control of therefore carrying out the multiple-speed gear-box consistent with this purpose.
Description of drawings
Fig. 1 is the block diagram of outfit according to the vehicle of the automatic transmission control apparatus of the first embodiment of the present invention;
Fig. 2 is the flow chart of host process that is presented at the content of the transforming gear control among the above embodiment;
Fig. 3 is for starting the flow chart of the secondary process of Clutch Control in above embodiment;
Fig. 4 is for carrying out the flow chart of the secondary process of the slight Engagement Control of clutch in above embodiment;
Fig. 5 is another embodiment's of the transforming gear control content in the displayed map 2 a flow chart;
Fig. 6 is the block diagram of the vehicle of outfit automatic transmission control apparatus according to a second embodiment of the present invention;
Fig. 7 is the flow chart of the control program of the control unit for automatic shift in demonstration the foregoing description;
Fig. 8 is for showing the sequential chart of vehicle testing travelling state in the foregoing description;
Fig. 9 is the block diagram of the vehicle of the transforming gear control gear of the multiple-speed gear-box of outfit a third embodiment in accordance with the invention;
Figure 10 is the structure explanatory view of multiple-speed gear-box in the foregoing description;
Figure 11 is for showing the flow chart of multiple-speed gear-box control content in the foregoing description;
Figure 12 is for showing the flow chart of multiple-speed gear-box control content in the foregoing description;
Embodiment
Fig. 1 shows the automatic transmission control apparatus according to the first embodiment of the present invention.
Motor 10 is installed in series via friction clutcch 12 (hereinafter to be referred as " clutch ") with gear transmission 14 (hereinafter to be referred as " speed changer ") and constitutes the vehicle driving system.And motor 10 has been installed fuel-injection pump 18, and this fuel-injection pump 18 can be by the control unit of engine 16 control fuel injection amounts in conjunction with micro computer, and motor 10 also has the rotational speed Ne that engine rotation speed sensor 20 is used for detection of engine.Clutch 12 has the output shaft of the clutch propulsion device 22 of connected drive unit as clutch, and the clutch stroke sensor 24 that is used to detect travel of clutch L simultaneously is installed to clutch.
On the other hand, actuator 30 (speed changer converter) has been installed on speed changer 14, actuator 30 uses working fluid by being opened and electromagnetic valve closed 28 conversion gears by transmission control unit 26 controls in conjunction with micro computer.In addition, speed changer 14 has also been installed the position transducer 32 that is used to detect the transforming gear state, is used for detecting from the rotating speed of clutch output shaft the vehicle speed sensor 34 of car speed V, and the countershaft speed probe 36 that is used to detect countershaft rotational speed N c.
Parking purpose state is determined method, the control of first transforming gear, and the control of second transforming gear, third gear conversion control and fourth speed bit map control realize by transmission control unit 26 respectively.
The amount that is provided for being depressed by accelerator pedal 38 in driver's operator cabin detects the accelerator opening sensor 40 of accelerator opening amount θ, be used to detect the brake switch 44 that brake pedal 42 is depressed, the speed change lever 46 and being used to that is used to import the transforming gear instruction of speed changer 14 shows the display monitor 48 of the transforming gear state of speed changer 14.Be used to notify transforming gear to finish, the notifying device such as buzzer of situations such as the generation of undesired incident is also included within the display monitor 48.
Signal from accelerator opening sensor 40 is transfused to control unit of engine 16, according to accelerator opening amount θ control fuel-injection pump 18.On the other hand, from engine rotation speed sensor 20, clutch stroke sensor 24, position transducer 32, vehicle speed sensor 34, countershaft speed probe 36, each signal of brake switch 44 and speed change lever 46 is transfused to transmission control unit 26, when carrying out intercommunication with control unit of engine 16, clutch propulsion device 22 is controlled with solenoid valve 28, thereby carries out automatic transforming gear control or manual transforming gear control.
Fig. 2 to Fig. 4 shows first embodiment of the content of the transforming gear control of being undertaken by transmission control unit 26.Transforming gear control repeated with predetermined interval after motor 10 brought into operation.
In the 1st step (abbreviate " S1 " in the drawings as, below identical), according to determining from the signal of position transducer 32 whether speed changer 14 transforms to other gears except that neutral gear, the gear that just travels (forward gears or backward gear).If speed changer 14 has transformed to other gears except that neutral gear, the control process continued to proceed to the 2nd step (being) downwards, if speed changer 14 is transformed neutral gear, the control process turns to standby (denying).
In the 2nd step,, determine whether break is ON state (working state) according to signal from brake switch 44.If break is in work, the control process continued to proceed to the 3rd step (being) downwards, if not work of break, the control process returned for the 1st step (denying).
In the 3rd step,, determine that whether engine speed Ne is less than predetermined value according to signal from engine rotation speed sensor 20.If engine speed Ne is less than this predetermined value, the control process continued to proceed to the 4th step (being) downwards, if engine speed Ne more than or equal to this predetermined value, the control process returned for the 1st step (denying).Also can be set to determine that according to signal whether car speed V rather than engine speed Ne are less than predetermined value from vehicle speed sensor 34.
Here from the 1st go on foot the 3rd the step process sequence phasing is corresponding really with parking purpose condition.
In the 4th step, clutch propulsion device 22 is controlled with cut-off clutch 12.After clutch 12 is separated, keep this state always.
In the 5th step, solenoid valve 28 work are to provide working fluid to actuator 30, and speed changer 14 begins to the transforming gear of neutral position then.
In the 6th step,, determine whether the transforming gear to neutral position of speed changer 14 is finished according to signal from position transducer 32.If the transforming gear to neutral position is finished, the control process continued to proceed to the 7th step (being) downwards, if do not finish to the transforming gear of neutral position, the control process returned for the 5th step (denying).
Notice that it is corresponding with the control of first transforming gear to go on foot the process sequence in the 6th step from the 4th.
In the 7th step,, determine whether car speed V is equal to or greater than 2km/h (second predetermined value) according to signal from vehicle speed sensor 34.If car speed V is more than or equal to 2km/h, the control process continued to proceed to the 8th step (being) downwards, if car speed V less than 2km/h, the control process advanced to for the 14th step (denying).
In the 8th step,, determine that whether accelerator opening amount θ is more than or equal to predetermined value according to signal from accelerator opening sensor 40.If θ is more than or equal to predetermined value for accelerator opening amount, the control process continued to proceed to the 9th step (being) downwards, if accelerator opening amount θ less than predetermined value, the control process advanced to for the 15th step (denying).
In the 9th step,, determine and the corresponding gear of car speed V (comprising neutral position) that detects by vehicle speed sensor 34 by the best transforming gear chart that does not show in reference to the accompanying drawings.
In the 10th step, output is corresponding to the gear setting command of definite gear of the 9th step.Be exactly concretely, solenoid valve 28 work are to provide working fluid to actuator 30, and speed changer 14 transforms to definite gear.
In the 11st step,, determine that whether car speed V is more than or equal to 5km/h (first predetermined value) according to signal from vehicle speed sensor 34.If car speed V is more than or equal to 5km/h, the control process continued to proceed to the 12nd step (being) downwards, if car speed V less than 5km/h, the control process advanced to for the 13rd step (denying).
In the 12nd step, clutch propulsion device 22 is controlled so that clutch 12 engages.
In the 13rd step,, call secondary process as shown in Figure 3 in order when starting, to start clutch control device.
Here, note from the 8th going on foot the process sequence in the 13rd step, and will control corresponding with second transforming gear in Fig. 3 that next describes and process shown in Figure 4.
In the 14th step, solenoid valve 28 work are to provide working fluid to actuator 30, and speed changer 14 transforms to the gear (starting shelves) when starting.Starting gear preferably determines according to the load weight of for example vehicle.
Here, it is corresponding with third gear conversion control to note going on foot the process sequence in the 14th step from the 7th.
In the 15th step, determine whether clutch 12 separates, and determine transforming to neutral position from speed changer 14 begins whether to pass through the scheduled time.If passed through the scheduled time, determine that vehicle stops, the control process proceeded to for the 12nd step so that clutch 12 engages (being).On the other hand, if the scheduled time is not in the past, the control process returned for the 7th step (denying).Also can be set to not go to determine whether to have passed through preset time, but determine that vehicle stops during less than predetermined value when car speed.
Here, note the process sequence in the 8th step, the 12nd step and the 15th step, corresponding with fourth speed bit map control.
Fig. 3 shows the process content of the secondary process that starts Clutch Control.
In the 21st step,, determine that whether accelerator opening amount θ is more than or equal to predetermined value according to signal from accelerator opening sensor 40.If θ is more than or equal to predetermined value for accelerator opening amount, the control process continued to proceed to the 22nd step (being) downwards, if accelerator opening amount θ less than predetermined value, the control process turns to standby (denying).
In the 22nd step, clutch propulsion device 22 is controlled so that clutch 12 engages rapidly.
In the 23rd step,, determine whether travel of clutch L is less than or equal to predetermined value according to signal from clutch stroke sensor 24.The predetermined value here is to determine whether clutch 12 is in a value of half-clutch state, and is set to suitable value according to the characteristic of clutch 12.If travel of clutch L is less than or equal to predetermined value, the control process continued to proceed to the 24th step (being) downwards, if travel of clutch L greater than predetermined value, the control process returned for the 22nd step (denying).
In the 24th step,, call the secondary process (with reference to figure 4) of joint according to the slight engaging clutch 12 of travel situations for from the complete engaging clutch 12 of half-clutch state.
In the 25th step,, determine whether almost coupling of engine speed Ne and secondary rotational speed N c according to signal from engine rotation speed sensor 20 and secondary speed probe 36.If engine speed Ne and secondary rotational speed N c are almost consistent with each other, the control process continued to proceed to the 26th step (being) downwards, if engine speed Ne and secondary rotational speed N c are not almost consistent with each other, the control process returned for the 24th step (denying).
In the 26th step, clutch propulsion device 22 is controlled so that clutch 12 engages fully.
Fig. 4 shows the process content of the secondary process of carrying out slight clutch control.
In the 31st step, read engine speed Ne from engine rotation speed sensor 20.
In the 32nd step, according to the variance ratio calculation engine rotation acceleration α of engine speed Ne.
In the 33rd step, determine whether engine speed Ne is low relatively, and engine rotation acceleration alpha low or negative whether.If condition is satisfied, the process of current secondary process stops (being), if condition does not satisfy, the control process continued to proceed to the 34th step (denying) downwards.
In the 34th step, determine whether condition " engine speed Ne is high relatively and the engine rotation acceleration alpha is low " or another kind of condition " the low relatively and engine rotation acceleration alpha height of engine speed Ne " satisfy.If condition is satisfied, the control process proceeded to for the 35th step (being) downwards, if condition does not satisfy, the control process proceeded to for the 36th step (denying).
In the 35th step, clutch propulsion device 22 is controlled so that clutch 12 slightly engages, and perhaps reduces engagement amount.
In the 36th step, clutch propulsion device 22 is controlled so that clutch 12 engages rapidly, perhaps increases engagement amount on a small quantity.
According to transforming gear described above control, when speed changer 14 is in when travelling gear, if break work, and engine speed Ne drops to and is lower than predetermined value, just can determine that the condition that vehicle stops to be satisfied.If the condition that vehicle stops to be satisfied, clutch 12 separates, and keeps this state simultaneously, and speed changer 14 transforms to neutral gear.If the speed V of vehicle is more than or equal to 2km/h then, and accelerator opening amount θ is more than or equal to predetermined value, and the travelling speed V of vehicle carries out the conversion of gear according to this moment.If car speed V is more than or equal to 5km/h after carrying out transforming gear, be defined as the acceleration again carried out from low speed, clutch 12 engages.On the other hand, if the speed V of vehicle after carrying out transforming gear less than 5km/h, determine to quicken again (restarting to move) and begin to take place, so clutch 12 slightly engages (engaging through half-clutch state) according to runnability from being about to a preceding extremely low speed of parking.
And if car speed V separates the back less than 2km/h at clutch 12, speed changer 14 transforms to neutral position, determines that vehicle is about to stop, and speed changer 14 transforms to the startup shelves and prepares to start.At this moment, clutch 12 keeps separating.
Therefore, even at vehicle deceleration, again quicken from an extremely low speed then, for example the vehicle response stop sign is decelerated under the situation that then needs to quicken again owing to the signal variation again before being about to parking, when speed changer 14 transforms to neutral gear, because clutch 12 keeps separating, need not separate it once more.Therefore, just can improve speed of response.In addition, when vehicle stopped, because speed changer 14 transforms to the startup gear, clutch 12 was in separated state simultaneously, just can only start by engaging clutch 12.Therefore, the speed of response in the time of also can improving startup.And slight joint the because clutch 12 is controlled when quickening again under extremely low speed just can for example start when joint stably, prevents to impact the stall with motor simultaneously.
Fig. 5 shows another embodiment of the transforming gear control content of being undertaken by transmission control unit 26.In the transforming gear control content of present embodiment, the 1st to go on foot for the 7th step the same with before embodiment, so only narrate different control content.
In the 41st step,, determine that whether accelerator opening amount θ is more than or equal to predetermined value according to signal from accelerator opening sensor 40.If θ is more than or equal to predetermined value for accelerator opening amount, the control process continued to proceed to the 42nd step (being) downwards, if accelerator opening amount θ less than predetermined value, the control process proceeded to for the 45th step (denying).
In the 42nd step,, determine and the corresponding gear of car speed V (comprising neutral position) that detects by vehicle speed sensor 34 by the best transforming gear chart that does not have in reference to the accompanying drawings.
In the 43rd step, output is corresponding to the gear setting command of definite gear of the 42nd step.Be exactly concretely, solenoid valve 28 work are to provide working fluid to actuator 30, and speed changer 14 transforms to definite gear.
In the 44th step, clutch propulsion device 22 is controlled so that clutch 12 engages.
In the 45th step,, determine that whether car speed V is less than predetermined value according to signal from vehicle speed sensor 34.If car speed V, determines that vehicle is about to stop less than predetermined value, the control process was back to for the 44th step (being).On the other hand, if car speed V more than or equal to predetermined value, the control process be back to the 7th the step (denying).Also can be set to determine transform to neutral position, determine that vehicle stops during through the scheduled time, rather than use car speed V from clutch 12 separation and speed changer 14.
Here, notice that the 41st step, the 44th step and the 45th process sequence that goes on foot are corresponding with fourth speed bit map control.
According to above introduction to the transforming gear control gear, carry out transforming gear control and stop, clutch 12 separates, speed changer 14 transforms to neutral position, then, if accelerator opening amount θ is more than or equal to predetermined value, transform to the gear according to the speed V of vehicle this moment, clutch 12 engages.Therefore, if depressing accelerator pedal 38 in order to stop at low speed driving, transforming gear carries out under the state that clutch 12 separates, so do not need cut-off clutch once more when quickening again, therefore can improve speed of response.And if accelerator opening amount θ determines that less than predetermined value vehicle is about to stop, clutch 12 engages.
As described above, according to first embodiment,, under the situation about under low speed, quickening again,, do not need it is separated once more then because friction clutcch keeps separating even at vehicle deceleration.Therefore, can directly gear be become the gear that travels.Therefore when quickening again, unnecessaryly separate friction clutcch for the conversion gear, therefore can improve speed of response.
Fig. 6 shows the block diagram of the vehicle of outfit automatic transmission control apparatus according to a second embodiment of the present invention.It has identical numeral with the first embodiment's shown in Figure 1 corresponding element of element, has just added 100 before numeral.
Gear transmission 114 (hereinafter to be referred as " speed changer ") is installed to motor 110 by friction clutcch 112 (hereinafter to be referred as " clutch ").And motor 110 has been installed and can also have been had the engine rotary speed sensor 120 of the rotating speed that is used for detection of engine by control the fuel-injection pump 118 of fuel injection amounts in conjunction with the control unit of engine 116 of micro computer.Clutch 112 has the output shaft that is connected to the clutch propulsion device 122 on the clutch as the drive actuator of clutch.
On the other hand, actuator 130 (speed changer converter) is installed on speed changer 114, actuator 130 uses Pneumatic pipe cleaner to cross solenoid valve 128 conversion gears, and solenoid valve 128 is subjected to control it in conjunction with the automatic transmission bit map control unit 126 of micro computer and opens and cut out.In addition, speed changer 114 has also been installed the position transducer 132 (transforming gear condition checkout gear) that is used to detect the transforming gear state, is used for detecting from the rotating speed of output shaft the vehicle speed sensor 134 of car speed V.
In driver's operator cabin, be provided with: the accelerator opening sensor 140 that is used for detecting accelerator opening amount by the amount that detection accelerator pedal 138 is depressed, be used to detect the break operating switch 144 that brake pedal 142 is depressed, be used to import the speed change lever 146 of the transforming gear instruction of speed changer 114.
And, be input to control unit of engine 116 from the signal of accelerator opening sensor 140, according to the opening control fuel-injection pump 118 of accelerator.
On the other hand, from engine rotation speed sensor 120, position transducer 132, vehicle speed sensor 134, each signal of brake switch 144 and speed change lever 146 all is imported into automatic transmission bit map control unit 126, and clutch propulsion device 122 is controlled with solenoid valve 128, therefore carries out automatic transmission bit map control when carrying out intercommunication with control unit of engine 116.
Automatic transmission bit map control unit 126 is controlled according to flow chart shown in Figure 7.The control that flow chart carried out repeats with predetermined interval.
After beginning (START), in the 101st step (abbreviate " S101 " in the drawings as, below identical), whether the transforming gear state of determining the speed changer 114 that detected by position transducer 132 is other gears (whether being the gear that travels) except that neutral position.If determining the transforming gear state of speed changer 114 is other gears except that neutral position, the control process continued to proceed to the 102nd step downwards.If determine it is not other gears except that neutral gear, repeat the 101st and go on foot.
In the 102nd step,, determine brake pedal 142 whether be depressed (whether break works) according to signal from break operating switch 144.If determine that brake pedal 142 is depressed, the control process proceeded to for the 104th step downwards.If determine that brake pedal 142 is not depressed, the control process proceeded to for the 103rd step downwards.
In the 103rd step, whether the accelerator opening of determining to be detected by accelerator opening sensor 140 is less than predetermined value (second predetermined value).10% of accelerator opening when here this predetermined value is set to the accelerator standard-sized sheet.If determine the accelerator opening less than predetermined value, the control process proceeded to for the 104th step downwards, if when determining that the accelerator opening is not less than predetermined value, the control process was back to for the 101st step.Notice that the 102nd step and the 103rd process sequence that goes on foot determine that with the deceleration purpose method is corresponding.This is because of carrying out brake operating when vehicle when travel phase is stopped, perhaps will speed up the device pedal from being depressed into the operation of unclamping.Therefore, when these conditions all satisfy, can determine that the driver has the purpose of deceleration.
In the 104th step, whether the car speed of determining to be detected by vehicle speed sensor 134 is less than predetermined value (first predetermined value).If determine car speed less than predetermined value, the control process proceeded to for the 105th step downwards.If determine that car speed is not less than predetermined value, the control process returned for the 101st step.
In the 105th step, determine that the engine speed that detected by engine rotation speed sensor 120 is whether in predetermined scope.The prespecified range here is set to the engine speed of motor when carrying out stable idle running, for example from 650rpm to 950rpm.If determine engine speed in prespecified range, the control process proceeded to for the 106th step downwards.If determine engine speed not in prespecified range, the control process returned for the 101st step.
In the 106th step, determine by control unit of engine 116 controls to the fuel injection amount of motor 110 whether more than or equal to predetermined value (the 3rd predetermined value).The predetermined value here be set at when the moment of torsion of motor 110 for its Maximum Torque 30% the time fuel injection amount.If determine fuel injection amount more than or equal to predetermined value, the control process proceeded to for the 107th step downwards.If determine that fuel injection amount is not greater than or equal to predetermined value, the control process returned for the 101st step.The process of noting for the 106th step is corresponding with the empty method of determining of hanging.This is because the purpose of deceleration is arranged as the driver, and the speed of vehicle drops to first predetermined value when following, if fuel injection amount more than or equal to the 3rd predetermined value, the torque ratio of motor is big when normally dallying, and therefore can determine to be in empty extension control period.
In the 107th step, control signal is transferred to clutch propulsion device 122 and makes its cut-off clutch 112.The process of controlling then proceeded to for the 108th step downwards.
In the 108th step, control signal is transferred to solenoid valve 128 with 130 work of control actuator, and the transforming gear state of speed changer 114 is transformed to neutral position.Thereafter, control process proceeds to END and stops.Notice that the 107th step is corresponding with the controlling method of transforming gear with the process sequence in the 108th step.
According to the automatic transmission bit map control unit 126 of formation described above, at first, whether depend on the transforming gear state at neutral position other gears in addition, determining whether need be according to control of the present invention.Under need situation,, determine that the driver has the deceleration purpose when brake pedal is depressed or accelerator opening amount during less than second predetermined value according to control of the present invention.At this moment, if car speed less than first predetermined value, engine speed is in prespecified range, fuel injection amount then determines it is that speed changer 114 transforms to neutral position automatically in sky extension state more than or equal to the 3rd predetermined value.
As a result, under sky extension state, transforming gear is arrived neutral position even engine speed more than or equal to the rotating speed that transforms to neutral position, is still controlled automatically.Therefore, when the travel phase from vehicle stops, reducing in order to force engine speed, needn't be than the necessary brake pedal 142 of more effectively depressing.Therefore, can reach parking stably.
Fig. 8 shows the sequential chart of the vehicle that travels in conjunction with present embodiment in testing experiment.The sky is here hung rotating speed and is set to 900rpm, takes place to be set to 690rpm to the rotating speed of neutral position conversion.As shown in Figure 8, by operational brake, engine speed reduces.But, dropping to generation before the rotating speed of neutral position conversion in engine speed, gear has been a neutral position at 30% the time point up conversion that Engine torque surpasses its Maximum Torque.
By top description, according to second embodiment, even sky is hung speed setting to than taking place under the high situation of the rotating speed of neutral position conversion, when vehicle when travel phase stops, gear still is transformed neutral position.As a result, needn't steadily stop with regard to realizing by the brake pedal of more effectively depressing more necessary than operational brake.And, can reduce the load of break, and prevent motor stall owing to the decline of engine speed.
Fig. 9 shows the structure of vehicle of the transforming gear control gear of the multiple-speed gear-box comprise a third embodiment in accordance with the invention.
Here, next will be introduced multiple-speed gear-box 214.
The separator gear Zm5 that is used for separator 214B is switched to top gear has been installed, separator gear Zm5 can be imported in the output from motor 210 on the input shaft 322 on it freely rotate, and the synchronizer hub 324A that forms synchromesh mechanism 324 is fixed to its end.Constitute the gear Zm4 that travels of each gear of basic trnasmission 214A, three step velocity gear Zm3, two step velocity gear Zm2, one step velocity gear Zm1, with reverse-gear ZmR be installed in be positioned at the coaxial main shaft 326 of input shaft 322 on, they can freely rotate, and the high tap position adapter gear Zr1 that is used for gear adapter 214C is switched to high gear is fixed to its end.The synchronizer hub 324A that forms synchromesh mechanism 324 is respectively fixed to and travels between gear Zm4 and the three step velocity gear Zm3, between two step velocity gear Zm2 and the step velocity gear Zm1, and on the main shaft 326 between a step velocity gear Zm1 and the reverse-gear ZmR.
On the other hand, always respectively with separator gear Zm5, gear Zm4 travels, three step velocity gear Zm3, the secondary separator gear Zc5 of two step velocity gear Zm2 and step velocity gear Zm1 engagement, the pair gear Zc4 that travels, secondary three step velocity gear Zc3, secondary two step velocity gear Zc2 and a secondary step velocity gear Zc1 are fixed on the major-minor axle 328 parallel with input shaft 322 and main shaft 326.And always the secondary reverse-gear ZcR by reversing idler gear ZmR1 and reverse-gear ZmR engagement is fixed on the major-minor axle 328.
The low-grade location adapter gear Zr2 that gear adapter 214C is switched to low gear be installed in the coaxial output shaft 330 of main shaft 326 on, it can freely be rotated around output shaft 330, and the synchronizer hub 324A that forms synchromesh mechanism 324 is fixed to an end of output shaft 330.Always secondary high tap position adapter gear Zcr1 and the secondary low-grade location adapter gear Zcr2 with high tap position adapter gear Zr1 and low-grade location adapter gear Zr2 engagement is separately fixed on the secondary gear adapter axle 332 that be arranged in parallel with output shaft 330.
And, because the synchronizer sleeve 324B that the actuator that does not show among the figure slides along its axial front and back is connected with key on the excircle of each the synchronizer hub 324A that forms synchromesh mechanism 324.By synchronizer sleeve 324B by the slip on the direction of synchronous gear, the clutch ring of not expressing among the figure is crushed on will be by on the rubbing surface of synchronous gear, and synchronous gear and will being eliminated by relatively rotating by friction between the synchronous gear, so both are by synchronously.
Have in the multiple-speed gear-box 214 of this spline structure, form six grades of speed changes with basic trnasmission 214A and gear adapter 214C, 12 advance speed change level and two reversing speed change levels pointing out by the table 1 that is achieved as follows face by each speed change level of half grade of conversion of using separator 214B.
[table]
| The speed change level | Separator | Basic trnasmission | The gear adapter |
| 1L | L | 1 | L |
| 1H | H | 1 | L |
| 2L | L | 2 | L |
| 2H | H | 2 | L |
| 3L | L | 1 | H |
| 3H | H | 1 | H |
| 4L | L | 2 | H |
| 4H | H | 2 | H |
| 5L | L | 3 | H |
| 5H | H | 3 | H |
| 6L | L | 4 | H |
| 6H | H | 4 | H |
| RevL | L | Rev | L |
| RevH | H | Rev | L |
On the other hand, multiple-speed gear-box 214 has been installed main actuator 230, separator actuator 254, and gear adapter actuator 256, they are opened with electromagnetic valve closed 228 by the control that is controlled unit 226 and use air pressure to switch basic trnasmission 214A respectively, separator 214B and gear adapter 214C.In addition, multiple-speed gear-box 214 has also been installed master site sensor 232 (switching state detection device), separator position transducer 260, and transforming gear device position transducer 262, they detect basic trnasmission 214A respectively, separator 214B, and the speed change state of gear adapter 214C.And, multiple-speed gear-box 214 has also been installed the vehicle speed sensor 234 that is used for detecting from its output shaft rotating speed car speed, be used to detect the main speed probe 236 of major-minor axle 328 rotating speeds, and the gear adapter speed probe 268 that is used to detect secondary gear adapter axle 332 rotating speeds.
In driver's operator cabin, be provided with: the accelerator opening sensor 240 that is used to detect the amount that accelerator pedal 238 is depressed, be used to detect the clutch pedal sensor 244 that clutch pedal 242 is depressed, be used to import the speed change lever 246 (transforming gear command device) of the transforming gear instruction of multiple-speed gear-box 214.Be used to indicate that the ten two-speed switch 246A that whether separator 214B switched to 12 grades of speed changes are installed in the speed change lever 246.In addition, in driver's operator cabin, also be provided with the display monitor 248 that is used to show multiple-speed gear-box 214 speed change state, be used to buzzer 282 devices such as grade of notifying transforming gear to finish.
Output from each sensor of forming the runnability detection device is imported into control unit 226, operation conditions control fuel-injection pump 218 according to motor, simultaneously, clutch propulsion device 222, solenoid valve 228 devices such as grade are controlled to carry out automatic transforming gear or manual transforming gear.
What the processing procedure of being undertaken by control unit 226 had realized that vehicle stops determining, the transforming gear operation determine the beginning conversion of auxiliary gear box, and the beginning conversion of basic trnasmission.
The control content of multiple-speed gear-box 214 when Figure 11 and Figure 12 are presented at the startup of vehicle, this is controlled in the control unit 226 and carries out with predetermined interval.
In the 201st step (abbreviate " S1 " in the drawings as, below identical),, determine whether vehicle stops according to output from vehicle speed sensor 234.Whether the rotation of just determining the synchronizer sleeve 324B of synchromesh mechanism 324 among the gear adapter 214C stops.If determine that vehicle stops, the control process proceeded to for the 202nd step (being), did not stop (just in moving), control procedure termination (denying) if determine vehicle.It is corresponding to notice that the 201st process that goes on foot and vehicle stop the method for determining.
In the 202nd step,, determine whether clutch 212 separates according to output from clutch stroke sensor 224.Separate if determine clutch 212, the control process proceeded to for the 203rd step (being), engaged control procedure termination (denying) if determine clutch 212.
In the 203rd step,, determine whether transforming gear begins according to output from speed change lever 246.If determine that transforming gear begins, the control process proceeded to for the 204th step (being), if determine that transforming gear does not begin, and control procedure termination (denying).
In the 204th step,, determine that whether basic trnasmission 214A is at neutral state according to output from master site sensor 232.If determine basic trnasmission 214A at neutral state, the control process proceeded to for the 205th step (being), if determine basic trnasmission 214A not under neutral state, and control procedure termination (denying).
In the 205th step,, determine whether the gear adapter switches according to from the output of master site sensor 232 with speed change lever 246.Switching if determine the gear adapter, the control process proceeded to for the 206th step (being), did not switch control procedure termination (denying) if determine the gear adapter.Attention determines that with transforming gear method is corresponding from the 201st process sequence that went on foot for the 205th step.
In the 206th step, in order to switch the gear adapter, solenoid valve 228 work are with the driving of control gear adapter actuator 256.
In the 207th step,, determine whether the switching of gear adapter is finished according to output from gear adapter position transducer 262.If determining that the gear adapter switches finishes, the control process proceeded to for the 209th step (being), and if determine that the gear adapter switches and do not finish that the control process proceeded to for the 208th step (denying).
In the 208th step,, determine whether switch the beginning preset time from the gear adapter goes over according to the timer that is combined in the control unit 226.If determine that the scheduled time is over and done with, the control process proceeded to for the 209th step (being), and if determine that the scheduled time does not have past, control process to return for the 207th step (denying).
In the 209th step, for conversion basic trnasmission 214A, solenoid valve 228 work are to control the driving of main actuator 230.
In the 210th step,, determine whether begin preset time from the conversion of basic trnasmission 214A goes over according to the timer that is combined in the control unit 226.Pass by if determine the scheduled time, the control process proceeded to for the 213rd step (being), and if determine that the scheduled time does not have past, control process to proceed to for the 211st step (denying).
In the 211st step,, determine whether the conversion of basic trnasmission 214A is finished according to output from master site sensor 232.Finish if determine the conversion of basic trnasmission 214A, the control process proceeded to for the 212nd step (being), and the control process enters scheduled time of wait.On the other hand, do not finish if determine the conversion of basic trnasmission 214A, the control process turned back to for the 210th step (denying).
In the 213rd step, in order to stop the conversion of basic trnasmission 214A and gear adapter 214C, the operation that is used to control the solenoid valve 228 of main actuator 230 and gear adapter actuator 256 stops.
When vehicle stops, carrying out the operation of transforming gear from the 201st process that went on foot for the 213rd step according to described above, cause gear adapter 214C switching, and the switching of gear adapter 214C will begin before basic trnasmission 214A conversion to the gear that travels.Thereafter, when the switching of gear adapter 214C began and finishes then, the conversion of basic trnasmission 214A began.On the other hand, when even the switching from gear adapter 214C begins the over and done with and conversion of preset time when still not finishing, determine in the synchromesh mechanism 324 of gear adapter 214C, the bump situation to have taken place, and when the switching of gear adapter is not finished, begin the conversion of basic trnasmission 214A.
When the conversion of basic trnasmission 214A began, the synchronizer sleeve 324B of basic trnasmission 214A synchromesh mechanism 324 in gear adapter 214C was by conversion in the state of pushing open towards the direction of gear that will be synchronous.Then when clutch 212 engages in this state, main shaft 326 and secondary gear adapter axle 332 be owing to rotating from the output of motor 210, relatively rotates between the synchronizer sleeve 324B of the synchromesh mechanism 324 in they and gear adapter 214C.As a result, the bump situation among the gear adapter 214C is eliminated, and the gear adapter can be switched.And, also there is such possibility, main shaft 326 is owing to the impact of the conversion of following basic trnasmission 214A is shaken, so the bump situation among the gear adapter 214C is eliminated.
Therefore, even the bump situation takes place gear adapter 214C when vehicle stops, basic trnasmission 214A does not carry out conversion yet when the switching of gear adapter is finished.As a result, the gear adapter switches and to be done, and therefore can avoid the generation of the situation that vehicle can not start reliably.
Can be according to the transforming gear control gear of multiple-speed gear-box of the present invention by only existing control content being carried out little variation and modification realizes.Therefore, almost do not follow the possibility of human error of the variation of control content, make the increase of expense and the reduction of reliability etc. can be maintained at minimum value.
From above description, can be clear that, a third embodiment in accordance with the invention, even when still not finishing through the conversion of auxiliary gear box after the scheduled time, the conversion of basic trnasmission will not begin when the conversion of auxiliary gear box is finished.Therefore,, relatively rotate between the synchronizer sleeve of synchromesh mechanism in the countershaft of auxiliary gear box and the auxiliary gear box, therefore can eliminate the bump situation in the auxiliary gear box at the main shaft of basic trnasmission.And, also having such possibility, main shaft is owing to the impact of the conversion of following basic trnasmission is shaken, so the bump situation in the auxiliary gear box is eliminated.
Industrial application
As mentioned above, the situation of attempting again accelerate in have fabulous responding ability at vehicle deceleration with being about to stop but to cancel stop according to the control device of automatic transmission of the present invention. And, even under sky extension state, also can stop reposefully. In addition, in multistage automatic transmission, even under the state that the conversion process of auxiliary gear box does not carry out smoothly, also can eliminate bump situation in the auxiliary gear box by the conversion of basic transmission. Therefore, under any circumstance can both carry out well by the gear conversion that automatic transmission is carried out, so this control device is exceedingly useful.
Skilled personage in the industry can carry out many variations and modification and not deviate from the scope and spirit of the present invention for required protection in attached claim.
Claims (2)
1. the control gear of an automatic transmission is characterized in that, comprising:
Be configured to the transforming gear condition checkout gear of the transforming gear state of measuring gear formula speed changer;
Be configured to the transforming gear device of the described gear transmission gear of conversion;
Be configured to the operation conditions detection device of detection of engine operation conditions;
Be configured to import testing signal, and control signal outputed to the control unit of described transforming gear device, wherein according to testing signal from described operation conditions detection device
Described control unit
When determining that according to the checkout value of described operation conditions detection device break is operated, or accelerator opening amount determines that the driver has the deceleration purpose during less than its predetermined value;
When determining according to the checkout value of described operation conditions detection device and the approximately proportional fuel quantity that is provided to motor of Engine torque during, determine that motor is in empty extension state more than or equal to its predetermined value; With
When determining that the transforming gear state by described transforming gear condition checkout gear detects is in the gear that travels, and defining the deceleration purpose by described deceleration purpose exists, the described car speed of determining to be detected by described operation conditions detection device is less than its predetermined value, and the engine speed of determining to be detected by described operation conditions detection device is in prespecified range, and by described empty the extension when determining to be in empty extension state, carry out transforming gear control with the transforming gear of described gear transmission to neutral position.
2. the control gear of an automatic transmission is characterized in that, comprising:
Be configured to the transforming gear condition checkout gear of the transforming gear state of measuring gear formula speed changer;
Be configured to the transforming gear device of the described gear transmission gear of conversion;
Be configured to the operation conditions detection device of detection of engine operation conditions; With
Be configured to import testing signal, and control signal outputed to the control unit of described transforming gear device, wherein according to measured signal from described operation conditions detection device
Described control unit comprises:
Be used for when determining that according to the checkout value of described operation conditions detection device break is operated, or accelerator opening amount determines that the driver has the device of deceleration purpose during less than its predetermined value;
Be used for determining that when determining according to the checkout value of described operation conditions detection device and the approximately proportional fuel quantity that is provided to motor of Engine torque during motor is in the device of empty extension state more than or equal to its predetermined value; With
Be used for when determining that the transforming gear state by described transforming gear condition checkout gear detects is in the gear that travels, and defining the deceleration purpose by described deceleration purpose exists, and the described car speed of determining to be detected by described operation conditions detection device is less than its predetermined value, and the engine speed of determining to be detected by described operation conditions detection device is in prespecified range, and hang when determining to be in empty extension state by sky, the transforming gear of described gear transmission transforming gear control gear to neutral position.
Applications Claiming Priority (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002-306177 | 2002-10-21 | ||
| JP2002306177 | 2002-10-21 | ||
| JP2002306177A JP2004144108A (en) | 2002-10-21 | 2002-10-21 | Shift control device for multistage transmission |
| JP2002-313374 | 2002-10-28 | ||
| JP2002313373 | 2002-10-28 | ||
| JP2002-313373 | 2002-10-28 | ||
| JP2002313374 | 2002-10-28 | ||
| JP2002313373A JP2004150464A (en) | 2002-10-28 | 2002-10-28 | Controller for automatic transmission |
| JP2002313374A JP4289865B2 (en) | 2002-10-28 | 2002-10-28 | Control device for automatic transmission |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003801017283A Division CN100412416C (en) | 2002-10-21 | 2003-10-21 | Controller for automatic speed changer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101240847A CN101240847A (en) | 2008-08-13 |
| CN101240847B true CN101240847B (en) | 2011-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007103008236A Expired - Fee Related CN101196237B (en) | 2002-10-21 | 2003-10-21 | Apparatus for controlling automatic transmission |
| CN2007103005399A Expired - Fee Related CN101240847B (en) | 2002-10-21 | 2003-10-21 | Apparatus for controlling automatic transmission |
| CNB2003801017283A Expired - Fee Related CN100412416C (en) | 2002-10-21 | 2003-10-21 | Controller for automatic speed changer |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007103008236A Expired - Fee Related CN101196237B (en) | 2002-10-21 | 2003-10-21 | Apparatus for controlling automatic transmission |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003801017283A Expired - Fee Related CN100412416C (en) | 2002-10-21 | 2003-10-21 | Controller for automatic speed changer |
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| JP (1) | JP2004144108A (en) |
| CN (3) | CN101196237B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101165371B (en) * | 2006-10-18 | 2010-05-12 | 许志刚 | Multi-segment type power automatic speed controller |
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- 2003-10-21 CN CN2007103005399A patent/CN101240847B/en not_active Expired - Fee Related
- 2003-10-21 CN CNB2003801017283A patent/CN100412416C/en not_active Expired - Fee Related
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Also Published As
| Publication number | Publication date |
|---|---|
| CN101196237B (en) | 2010-06-23 |
| CN101240847A (en) | 2008-08-13 |
| JP2004144108A (en) | 2004-05-20 |
| CN1705837A (en) | 2005-12-07 |
| CN101196237A (en) | 2008-06-11 |
| CN100412416C (en) | 2008-08-20 |
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