CN104002789A

CN104002789A - Method of producing an adaptive dataset of disengaged clutch pedal positions

Info

Publication number: CN104002789A
Application number: CN201310465299.3A
Authority: CN
Inventors: 塞米·菲利蒙·彼得里迪斯; 伊恩·哈勒隆; 大卫·赫斯科斯; 乌尔斯·克里森
Original assignee: Ford Global Technologies LLC
Current assignee: Ford Global Technologies LLC
Priority date: 2012-10-08
Filing date: 2013-10-08
Publication date: 2014-08-27
Anticipated expiration: 2033-10-08
Also published as: RU2658238C2; CN104002789B; GB2506674B; RU2013144947A; GB2506674A; DE102013111071A1; GB201217946D0

Abstract

A method is disclosed in which a dataset of clutch pedal positions expected to result in a disengaged clutch state is produced that adapts itself to changes in a bite point, of a clutch (8, fig 1). The method adds the current clutch pedal position P, to the dataset when the clutch engagement state is inferred to be disengaged and removes clutch pedal positions P, that are more engaged than the current clutch pedal position P, from the dataset when the clutch engagement state is inferred to be not disengaged. A method for stopping and starting an engine (10, fig 1) that utilises the dataset to determine whether or not to start the engine (10, fig 1) in response to a driver engine start request is also disclosed.

Description

A kind of method of power-transfer clutch engagement state of inferring for generation of comformability

Technical field

The present invention relates to have the power actuated vehicle of explosive motor, particularly, relate to produce by engine drive be connected to the method for power-transfer clutch engagement state that the comformability of the power-transfer clutch of hand-operated transmission is inferred.

Background technology

Provide a kind of have comprise the power actuated vehicle that is used to power actuated vehicle that the hand-operated transmission of the start stop system of the explosive motor of power is provided for automatically stopping and starting, be known.

Whenever defining chance, start stop system just stops driving engine automatically, when improving oil consumption and to reduce the blowdown from driving engine.

The vehicle that is provided with start and stop function need to determine when moment of torsion is passed to one or more driving wheels by driving engine.In the time having selected neutral, some start and stop will only stop laying equal stress on and inspire motivation (SIN), and in the time having selected driving gear, if power-transfer clutch is floored (depressed) (SIG), the realization of other start and stop also allows stop and restarting.

For start-stop control system, determining that before driving engine is restarted, will to be passed (change-speed box is dissociated in neutral or power-transfer clutch) without any moment of torsion very important, is that start stop system requires the situation of (as needed due to battery electric quantity deficiency or air-conditioning) automatically if particularly there is the undesirable engine restarting of chaufeur.

Apply for hand-operated transmission start and stop, the purpose that when threshold value of " pedal of clutch is stepped on (pressed)/pedal of clutch and unclamped (released) " is generally used for indicating power-transfer clutch to be operated, chaufeur drives to leave, so that start stop system can trigger engine starting.When identical threshold value can also be used to indicate chaufeur release the clutch pedal and want to keep the static sufficiently long time, start stop system can kill engine to preserve fuel.

In the situation that change-speed box engages, start the engine can cause vehicle unexpectedly to move, and causes danger.

For hand-operated transmission neutral stop (SIN) application, determine change-speed box in neutral, therefore without any moment of torsion by the method being passed for use neutral gear sensor (GNS), its on off controller indicate selected or non-selected neutral.GNS correctly indicates the fault of the state of change-speed box to receive special concern, and this is to restart in the situation that change-speed box engages because it can cause driving engine, causes unexpected vehicle movement.

For put into gear parking (SIG) start and stop application of hand-operated transmission, must depend on the instruction that power drive system is dissociated.This is a marvellous task and is that all hand-operated transmission start stop systems of producing are so far all the one of the main reasons of SIN system.

For SIG application, propose use including concentric slave cylinders (CSC) sensor and combined with clutch mass cylinder (CMC) sensor or clutch pedal position sensor, so that the instruction that provides power-transfer clutch to be dissociated.But, when vehicle is typically different, there is CSC sensor and CMC sensor or clutch pedal position sensor, therefore for this solution, there is extra cost.

In addition, predetermined power-transfer clutch dissociates, and a CSC threshold value is difficult to determine and very difficult change potentially, and this is due to the tolerance between parts and clutch abrasion.In addition, As time goes on, the motion of the biting point of power-transfer clutch means and more difficultly on CSC, specifies single fixing threshold value to indicate power-transfer clutch to be dissociated and under driven condition, (need chaufeur let slip the clutch or approach very much pedal total travel) to reach this threshold value.

If CMC and CSC sensor have been installed simultaneously, can test example as the fault of hydraulic leak, but can not detect the catastrophic failure that causes engaging the power-transfer clutch that can not be detected.This catastrophic failure can cause unexpected vehicle movement and have to moving to take action based on sense vehicle.

Summary of the invention

Need to provide a kind of low cost, failure-free method for determining power-transfer clutch engagement state, to allow SIG to realize in mode economic and safety.

The object of the present invention is to provide and a kind ofly infer the method for power-transfer clutch engagement state in cost actv. mode, the method goes for compensating clutch abrasion.

Another object of the present invention is to allow with cost effectively and failure-free mode use SIG system.

According to a first aspect of the invention, provide a kind of for generation of by the engine drive of power actuated vehicle be connected to the method for power-transfer clutch engagement state that the comformability of manual multi-shifting speed variator is inferred, wherein the engagement state of power-transfer clutch is controlled by the motion of pedal of clutch, the method comprises: the position of monitoring pedal of clutch, in the time that equalling zero in fact, the speed of vehicle in front produces the power-transfer clutch engagement state of inferring, select the gear in the change-speed box of vehicle, driving engine operation, the power-transfer clutch engagement state of inferring is to preserve the clutch pedal position when pre-test while dissociating, the power-transfer clutch engagement state of inferring is not to remove while dissociating and the clutch pedal position of the preservation that degree of engagement is larger compared with the clutch pedal position of pre-test.

The preservation and removing of the clutch pedal position of preserving can produce expection and produce the Adaptive Data collection of the clutch pedal position of the power-transfer clutch engagement state dissociating.

Preserve when the clutch pedal position of pre-test can comprise and use the data set that upgrades clutch pedal position when the clutch pedal position of pre-test.

Described data set can have the clutch pedal position of the preservation of predefined quantity, and in the time that data set is full of, more new data set comprises the clutch pedal position that covers the oldest preservation with up-to-date clutch pedal position.

The clutch pedal position that removes preservation can comprise the clutch pedal position that removes all preservations that degree of engagement is larger compared with working as the clutch pedal position of pre-test from data centralization.

If the moment of torsion being transmitted by power-transfer clutch is essentially zero, the method can comprise deduction power-transfer clutch engagement state for dissociating, otherwise infers that power-transfer clutch engagement state is not for dissociating.

According to a second aspect of the invention, provide a kind of for stopping and starting the method that drives the driving engine of the power actuated vehicle of many gear hand-operated transmissions by power-transfer clutch, wherein the engagement state of power-transfer clutch is controlled by pedal of clutch, the method comprises: the request that is identified for engine starting is the request of chaufeur generation or the request that system produces, and if start the request that request produces for chaufeur, the clutch pedal position dissociating based on when the clutch pedal position of pre-test and the deduction of the multiple storages that produce according to the method for described a first aspect of the present invention relatively determine whether start the engine.

If current clutch pedal position is equal to, or greater than the clutch pedal position of the preservation of minimum dissociation degree, the method can comprise start the engine.

Alternatively, if current clutch pedal position is less than the clutch pedal position of the preservation of minimum dissociation degree, the method can comprise not start the engine.

If engine starting request is the request that system produces, when the method can comprise clutch pedal position based on current and engine stop, clutch pedal position relatively determines whether start the engine.

If clutch pedal position during with engine stop its dissociated state the same or larger than its dissociation degree, the method can comprise start the engine.

If clutch pedal position during than engine stop his degree of engagement larger, the method can comprise not start the engine.

In response to the change-speed box engine stop request that chaufeur produces in the time putting into gear and power actuated vehicle is static, the power-transfer clutch engagement state that the method can also comprise based on inferring determines whether to allow engine stop.

If the power-transfer clutch engagement state of inferring is for dissociating, driving engine may stop, otherwise it may keep operation.

If the moment of torsion being transmitted by power-transfer clutch is essentially zero, power-transfer clutch engagement state can be inferred to be and dissociate.

According to a third aspect of the invention we, provide a kind of for stopping and starting the device that drives the driving engine of the power actuated vehicle of many gear hand-operated transmissions by power-transfer clutch, wherein the engagement state of power-transfer clutch is by pedal of clutch control, this device comprises and is operable as the electronic control unit that the request that is identified for engine starting is the request that produces of the request that produces of chaufeur or system, and if start the request that request produces for chaufeur, electronic control unit be operable as based on measured by clutch position sensor when the clutch pedal position of pre-test be stored in the multiple deductions in the memory device of electronic control unit the clutch pedal position dissociating relatively determine whether start the engine.

Brief description of the drawings

Now, the present invention will explain by exemplary reference the following drawings, wherein:

Figure 1A is the schematic diagram having according to the power actuated vehicle of SIG start stop system of the present invention;

Figure 1B is the schematic diagram of the clutch actuation system of a part for the start stop system of pie graph 1;

Fig. 2 is the schematic diagram that demonstrates the opereating specification of the pedal of clutch motion in three predefined regions;

Fig. 3 A is the diagram of circuit that demonstrates the first embodiment of the method for inferring according to a first aspect of the invention power-transfer clutch engagement state;

Fig. 3 B is the diagram of circuit that demonstrates the second embodiment of the method for inferring according to a first aspect of the invention power-transfer clutch engagement state; And

Fig. 4 A to 4C demonstrates the schematic flow diagram of controlling the method for SIG start stop system with the power-transfer clutch engagement state of inferring according to a second aspect of the invention.

Fig. 5 A is the chart that demonstrates three kinds of possible clutch pedal positions while there is engine stop;

Fig. 5 B is the chart demonstrating by multiple clutch pedal positions of the test generation that dissociates;

Fig. 6 shows the vertiginous chart in clutch seizure point in engine stop process; And

Fig. 7 is the diagram of circuit for inferring adaptively the method for the clutch pedal position dissociating.

Detailed description of the invention

With reference to Figure 1A and 1B, it shows the power actuated vehicle 5 with the driving engine 10 that drives many gear hand-operated transmissions 11.Change-speed box 11 is by not shown in power-transfer clutch 8(Figure 1A) can drive and be connected to driving engine 10, wherein power-transfer clutch 8 is manually engaged by the chaufeur of power actuated vehicle 5 or unclamps and have a gear selector (not shown).Gear selector can manually move between the multiple positions that comprise at least one selection formation gear bit position of a part of multi-shifting speed variator and the neutral gear position of the gear of non-selected any multi-shifting speed variator.In the time that gear selector moves to neutral gear position, many gear hand-operated transmissions 11 can be described as under neutral position state, under this state, drive and can not be transmitted by multi-shifting speed variator, and move to while putting into gear position when gear selector, multi-shifting speed variator 11 can be described as under " putting into gear " state, under this state, drives and can be transmitted by multi-shifting speed variator.

The engine primer of integrated form starter generator 13 forms can drive and be connected to driving engine 10, and its flexible drive parts 14 by driving band or chain type of belt drive is connected to the bent axle of driving engine 10 in this example.Starter generator 13 is connected to the electric energy of battery 15 forms and for fire an engine 10, and it is charged by starter generator in the time that it moves as power generator.The invention is not restricted to use starter generator 13, and starter generator 13 can be replaced with fire an engine 10 by self-starting motor.

Should be appreciated that in the process of fire an engine 10, starter generator 13 has driven the bent axle of driving engine 10, and other time, starter generator drives to produce electric energy by driving engine 10.

The chaufeur that can operate the key form of ignition lock 17 can operate all operations were of opening/closing device for control engine 10.That is to say, in the time that driving engine 10 moves, ignition lock 17 is in " ignition lock open (key-on) " position, and when ignition lock 17 is during in " ignition lock is closed (key-off) " position, driving engine 10 can not move.Ignition lock 17 also comprises the 3rd instantaneous position for hand starting driving engine 10.Should be appreciated that other devices also can be for this function is provided, and the invention is not restricted to use ignition lock.

Electronic control unit 16 be connected to starter generator 13, driving engine 10, for monitor change-speed box 11 be in neutral or the gear selector sensor 12 in putting into gear, for measure wheel 20 rotating speed car speed sensor 21, for monitor brake pedal 23 position brake pedal position sensor 24, for monitor pedal of clutch 25 position clutch pedal position induction system and for monitoring the accelerator pedal position sensor 19 of position of Das Gaspedal 18.The chaufeur input that Das Gaspedal 18 provides the required electric power from driving engine 10 to export.If off normal rest condition of Das Gaspedal 18, can be described as the position in stepping on or the state in stepping on.Should be appreciated that and replace monitoring accelerator pedal position, the position of flow regulating valve can be monitored and for inferring accelerator pedal position.

Electronic control unit 16 can comprise power actuated vehicle 5 engine management system function or be connected to the engine management system of power actuated vehicle 5, this engine management system can be determined the fuel that is supplied to driving engine 10, and is operable as the moment of torsion output of control engine 10 and passes through the operation of the driving engine 10 under engine idle regulating control control idling.

Although because wheel sensor 21 has been arranged on power actuated vehicle conventionally as a part for drg antiblock device, according to the use of wheel sensor 21, the measurement of motor vehicle speed is made to explanation above, but be to be understood that, other suitable devices also can be for determining the speed of power actuated vehicle 5, for example, measurement is from the sensor of the rotating speed of the output shaft of change-speed box 11.

Be to be understood that, term gear selector sensor is not limited to the sensor of the position of monitoring gear selector, but any change-speed box 11 that can provide is in putting into gear or the device of the feedback in neutral, that is to say, it can be that neutral gear sensor or gear are selected sensor.

Similarly, term brake pedal sensor is not limited to the sensor of the position of monitoring brake pedal, but whether any operator that power actuated vehicle 5 is provided has applied the device of pressure with the feedback of the drg of application power actuated vehicle 5 on brake pedal 23.For example, brake pedal sensor can be monitored the pressure of the fluid in one or more brake piping.In the time that brake pedal 23 has fully been stepped on brake application device, can be described as the state in stepping on or the position in stepping on.

In this example, clutch pedal position induction system comprise for policer operation be connected to the clutch pedal position sensor 26 of the position of the pedal of clutch 25 of wearing clutch hydraulic main cylinder 27, and for controlling by being treated to from the position signal of clutch pedal position sensor 26 electric clutch pedal position treater (EC3P) 16C that output is used for electronic control unit 16 by the logic that is stored in EC3P16C.But should be appreciated that the position that replaces monitoring pedal of clutch 25, the position of master cylinder piston can be monitored by position transduser, or multiple switch can be used as the indicating device of clutch pedal position.

Pedal of clutch 25 as step on or the determining by the EC3P16C clutch position signal that is received from position transduser 26 of a part that forms electronic control unit 16 of state that unclamp carried out.Clutch position signal represents the current location (P of pedal of clutch 25 _p).

As shown in Figure 1B, in this example, clutch actuation system engages and the clutch release rod 29 of cut-off clutch 8 forms by pedal of clutch 25, hydraulic main cylinder 27, hydraulic pressure slave cylinder 28 and by release thrust bearing 9.But should be appreciated that other devices also can be for being the joint of power-transfer clutch 8 by the conversion of motion of pedal of clutch 25 or dissociating, and the invention is not restricted to use hydraulic clutch actuation system.

It is also understood that electric clutch pedal position treater (EC3P) 16C can be independent unit, and can not be configured to a part for main start and stop electronic control unit 16.

Electronic control unit 16 receives from the multi-signal of driving engine 10 and by signal and is sent to the driving engine of closing and starting for control engine 10, and wherein multi-signal comprises the signal of instruction from the rotating speed of the driving engine 10 of speed sensor (not shown).In this example, driving engine 10 is spark ignition engines 10, and transmission is used for controlling fuel system (not shown) and the ignition system (not shown) for driving engine 10 from the signal of electronic control unit 16.If driving engine 10 is diesel motor, be only supplied to the fuel of driving engine to be controlled.Electronic control unit 16 is made up of multiple assemblies, comprise that central processing unit, memory storage, time meter and signal processor unit are being converted into data that electronic control unit 16 uses with control operation from the signal of sensor that is connected to electronic control unit 16, and automatically the stopping and starting of control engine 10 particularly.One in the memory storage of electronic control unit 16 is clutch pedal position memory device 16M.This clutch pedal position memory device 16M storage expection produces the Adaptive Data collection of the clutch pedal position of the power-transfer clutch engagement state dissociating, and detailed content is below being explained.

In normal engine operation process, electronic control unit 16, in this example, comprise engine management system and idle controller, be operable as control and be supplied to the fuel of driving engine 10, and be operable as point of adjustment ignition system so that spark is being supplied to driving engine 10 to produce required engine torque on correct opportunity by light-up plug.

The operation of electronic control unit 16 control engines 10, wherein driving engine 10 is operable as two kinds of patterns, and the first is automatic start-stop operational mode, and the second is continuous operation mode.But, should be appreciated that one or more independent electronic controllers can be for the normal operation of control engine 10, and electronic controller 16 can a control engine 10 switching between automatically the stopping and starting of two kinds of patterns of operation and driving engine 10.

Electronic control unit 16 was also operable as before allowing with first mode operation, by checking that one or more engine operation parameters determine whether to be applicable to first mode operation driving engine 10.

These engine operation parameters can comprise whether engine coolant temperature, any catalyst being associated with driving engine are activated, whether driving engine rotates in predetermined speed range, the state of battery electric quantity and the current power consumption of power actuated vehicle 5 of power actuated vehicle 5.

For example, if cooling-liquid temperature is lower than 65 DEG C or catalyst does not start or engine speed is approximately greater than 1100 number of revolution per minute (RPM), be prohibited from entering first mode, and electronic control unit 16 is operable as with preheating mode operation driving engine 10, in this pattern, no matter power actuated vehicle 5 is motions or static, driving engine 10 is operation continuously all.

In the time that one or more predetermined engine stops and entry condition exist, once determine and met engine operating condition, start stop system just moves with the first mode of operation.

These engine stops and entry condition are used for based on the stopping system of putting into gear (SIG) from the signal of multiple sensors and system reception by electronic control unit 16.

For example, in order to realize SIG engine stop, must consider following factors:

Whether 1/ car speed equals zero, and is indicated by vehicle speed sensor 21;

The 2/ current gear of whether having selected, is indicated by gear selector sensor 12;

Whether 3/ Das Gaspedal 18 is not operated, and is indicated by accelerator pedal position sensor 19;

Whether 4/ brake pedal 23 is operated, and is indicated by brake pedal sensor 24;

Whether the state of 5/ power-transfer clutch of inferring is for dissociating;

And

Whether 6/ do not exist any engine stop to stop factor, as low state of charge or the system mistake of a large amount of electricity needs of air-conditioning unit, battery.

If met all these requirements, driving engine 10 stops, otherwise it keeps operation.

In order to restart the driving engine 10 in putting into gear, must there is following condition:

The 1/ current gear of having selected;

And

2a/ brake pedal 23 by be operated move to released;

Or

2b/ Das Gaspedal is operated by released moving to;

And

The state of 3/ power-transfer clutch of inferring is for dissociating;

And

4/ does not exist any engine starting to stop factor, as system mistake.

If met these requirements, driving engine 10 is activated, otherwise its maintenance stops.

According to above-mentioned condition 2a and 2b, should be appreciated that its by depend on the configuration of the vehicle relevant with these conditions and enable restart binary pair.

In certain embodiments, only have brake pedal position to be used as restarting binary pair, in other embodiments, only have accelerator pedal position to be used as restarting binary pair, but in described embodiment, if brake pedal position becomes releasedly from being operated, or accelerator pedal position is operated from released becoming, and it is used as restarting binary pair.

Fig. 2 has described three kinds of clutch states, and unclamp, step on and floor, and switching threshold between these states.These three kinds of states are typically applied for start and stop now.

In region " R ", pedal of clutch 25 is considered to unclamp, that is to say, power-transfer clutch 8 will be engaged clearly, and in region " D ", that be considered to floor and the power-transfer clutch 8 of pedal of clutch 25 will be dissociated clearly, and in region " P ", pedal of clutch 25 is considered to step on, and power-transfer clutch 8 can dissociate or engage, this depend on pedal of clutch in region " P " with respect to biting point P _biteposition.

Demarcation line between " P " stepping on and " D " region of flooring is in this example corresponding to approximately 70% clutch-pedal travel.

With reference now to Fig. 3 A,, its show be suitable for that SIG system uses for inferring first embodiment of method of power-transfer clutch engagement state.

The method starts at frame 105, and it is corresponding to the ignition lock open event for power actuated vehicle 5.The method then advances to frame 110, whether static carrys out inspection machine motor vehicle in this step by the instruction of vehicle speed sensor 21.If car speed is non-vanishing in fact, power-transfer clutch engagement state can not be inferred to be and dissociate, and the method advances to frame 140, and in this step, result is output to the operation of on off controller 16 for control engine 10.

The method then advances to frame 190 to check whether ignition lock close event has occurred by frame 140, if occurred, the method finishes at frame 199, otherwise it is back to frame 110 to start next circulation.

If vehicle 5 is static, the method advances to frame 111 to determine whether to have selected gear by frame 110.This is to complete from the signal of gear selector sensor 12 by using.This condition is necessary, because if change-speed box 11 is in neutral, no matter the position of pedal of clutch how, the moment of torsion producing on power-transfer clutch 8 will be always zero.Therefore, not this condition, the test of dissociating of deduction can infer that clutch pedal position has exceeded clutch seizure point mistakenly, and is not in fact this situation.

If non-selected gear, power-transfer clutch engagement state can not be inferred to be and dissociate, and the method advances to frame 140 by frame 111, and in this step, result is output to the operation of on off controller 16 for control engine 10.

If selected gear current, the method advances to frame 112 to determine whether driving engine moves by frame 111.This test is to move in order to ensure driving engine 10, because do not have the driving engine of operation just can not use clutch moment of torque to infer that power-transfer clutch 8 is for dissociating.This is because in the case of static driving engine 10, no matter whether power-transfer clutch 8 is engaged, clutch moment of torque will be all zero.

Therefore, if driving engine off-duty, power-transfer clutch engagement state can not be inferred to be and dissociate, and the method advances to frame 140 by frame 112, and in this step, result is output to the operation of on off controller 16 for control engine 10.

If driving engine is confirmed as moving in frame 112, whether the method to advance to frame 113 by frame 112 effective to determine engine idle regulating control.Comprise that this condition is for clutch moment of torque is calculated and is limited to idling.This has been avoided the driving engine transition and the deceleration fuel ignition switch that increase unnecessary complexity to close condition.But, this condition not necessarily, and its use should not be considered to realize infer the tactful sole mode that dissociates.

But, in this example, if engine idle regulating control is not actv., power-transfer clutch engagement state can not be inferred to be and dissociate, and the method advances to frame 140 by frame 113, in this step, result is output to the operation of on off controller 16 for control engine 10.

But in frame 113, if find that engine idle regulating control is effective, the method advances to frame 114 to check whether clutch moment of torque equals zero in fact by frame 113.The calculating of clutch moment of torque based on carrying out in the engine management system of power actuated vehicle 5, this calculating relates in order to meet idling torque demand has how much fuel to be injected in driving engine 10, wherein considers power load and mechanical load on driving engine 10.

If clutch moment of torque is not equal in fact zero, power-transfer clutch engagement state can not be inferred to be and dissociate, and the method advances to frame 140 by frame 114, and in this step, result is output to the operation of on off controller 16 for control engine 10.

But if find that in frame 114 clutch moment of torque equals zero in fact, whether the method advances to frame 118 by frame 114 and passes by check cycle stabilization time in a for example second.This condition is included as stability measurement, to guarantee that signal noise or signal peak can only temporarily by mistake not cause and meet mistakenly other conditions.Cycle stabilization time in one second enough makes these conditions disappear conventionally.

If cycle stabilization time does not go over, power-transfer clutch engagement state can not be inferred to be and dissociate, and the method advances to frame 140 by frame 118, and in this step, result is output to the operation of on off controller 16 for control engine 10.

If pass by stable period time required in frame 118, the method advances to frame 120, the engagement state of confirming the power-transfer clutch 8 of inferring in this step is " dissociating ", and result is output to the operation of on off controller 16 for control engine 10.

The method then advances to frame 190 to check whether ignition lock close event has occurred by frame 120, if occurred, the method finishes at frame 199, otherwise it is back to frame 110 to start next circulation.

Therefore, the method provides a kind of convenience and has produced cheaply the method for the instruction of the engagement state of power-transfer clutch 8, and does not need costliness or complicated power-transfer clutch engage transducer system.That is to say, do not need important additional firmware and relevant cost.

With reference now to Fig. 3 B,, it shows the second embodiment of the method for the deduction power-transfer clutch engagement state that is suitable for the use of SIG system.

Aspect a lot of as hereinbefore, and wherein the frame of identical numbering has identical function to the method.The second embodiment has increased in three additional conditions shown in frame 115,166 and 177, and these three additional conditions are being made about the first embodiment shown in Fig. 3 A between the frame 114 and 118 of explanation.

In this example, if find that in frame 114 engine torque equals zero in fact, the method advances to frame 115 to check whether pedal of clutch is floored by frame 114.That is to say, from the output P of the clutch pedal position sensor of clutch mass cylinder sensor 26 forms _sensinstruction pedal of clutch is than predetermined threshold quantity P _thresdegree is operated largelyr.

For example,, if threshold value P _thresbe 70% the signal level that equals pedal of clutch 25 strokes, test will be:

Whether P _sens>P _thresor whether P _sens>70%? if "Yes", pedal of clutch 25 is floored, if "No", pedal of clutch 25 is not floored.

Comprise that this condition is in order to increase additional protective cover to prevent from existing the CMC sensor signal P of apparent error _sensin time, but successfully infers and dissociates.For example,, if CMC sensor position signal P _sensindicated pedal of clutch 25 to be only operated 10%, and every other clutch testing condition all infers that power-transfer clutch dissociates and be identified, this means and exist and CMC sensor signal P _sensrelevant fault, or there is mistake or fault in clutch system itself.In this case, should not make the test of dissociating of inferring pass through, to do not allow engine stop event.

Therefore, in this example, if pedal of clutch is defined as not floored by sensor 26, power-transfer clutch engagement state can not be inferred to be and dissociate, and the method advances to frame 140 by frame 115, in this step, be output to the operation of on off controller 16 for control engine 10 from the result of frame 140.Although not shown on Fig. 3 B, if determined this condition, the chaufeur of power actuated vehicle 5 can be warned.

But if find that in frame 115 pedal of clutch 25 is floored, the method advances to frame 116 to determine whether brake pedal 23 is floored.

In frame 116, check and whether indicated brake pedal 23 to be floored from the signal of brake pedal sensor 24.If brake pedal is defined as being floored, the method advances to frame 117 to determine the state of Das Gaspedal 18.This condition is included as additional protective cover, to confirm that vehicle 5 is in fact static.Often be not enough to determine that from the accuracy rate of the vehicle velocity signal of the vehicle speed sensor 21 under low speed vehicle 5 is static.That is to say, it is included as additional measurement, with guarantee vehicle 5 not with idling moving velocity along slope downward creep, neutral moment of torsion when this can cause power-transfer clutch 8 to be in fact engaged on power-transfer clutch 8.Idling moving velocity must be less than minimum car speed, for by a whole set of condition, can detect with vehicle speed sensor 21, and wherein vehicle speed sensor 21 provides in frame 110 and requires to see that car speed is zero condition.

If brake pedal 23 is defined as not floored in frame 116, power-transfer clutch engagement state can not be inferred to be and dissociate, and the method advances to frame 140 by frame 116, in this step, result is output to the operation of on off controller 16 for control engine 10.

The method then advances to frame 190 by frame 140 and whether has occurred ignition lock close event to check, if there is, the method finishes at frame 199, otherwise it is back to frame 110 to start next circulation.

In frame 117, check and whether indicated Das Gaspedal 18 not to be operated from the signal of accelerator pedal sensor 19.

Continue frame 117, if Das Gaspedal 18 is defined as not being operated by accelerator pedal position sensor 19, the method advances to 118 by frame 117.Comprise this condition be because if meet the condition that kills engine subsequently only a needs deduction dissociate.If situation when the driver requested moment of torsion of power actuated vehicle is floored with Das Gaspedal 18 is the same, SIG stops can not realizing.

If Das Gaspedal 18 is defined as being floored in frame 117, power-transfer clutch engagement state dissociates without being inferred to be, and the method advances to frame 140 by frame 117, in this step, result is output to the operation of on off controller 16 for control engine 10.

The method then advances to 190 to check whether ignition lock close event has occurred by frame 140, if occurred, the method finishes at frame 199, otherwise it is back to frame 110 to start next circulation.

If the method advances to frame 118 by frame 117, as above, make the inspection of whether having pass by about cycle stabilization time in a for example second.As above, this condition is included as stability measurement, to guarantee that signal noise or signal peak can only temporarily by mistake not cause and meet mistakenly other conditions.

As above, if cycle stabilization time does not go over, power-transfer clutch engagement state can not be inferred to be and dissociate, and the method advances to frame 140 by frame 118, and in this step, result is output to the operation of on off controller 16 for control engine 10.

But, if pass by stable period time required in frame 118,, as above, the method advances to frame 120, the engagement state of confirming the power-transfer clutch 8 of inferring in this step is " dissociating ", and result is output to the operation of on off controller 16 for control engine 10.

The method then advances to 190 to check whether ignition lock close event has occurred by frame 120, if occurred, the method finishes at frame 199, otherwise it is back to frame 110 to start next circulation.

This second embodiment also provides a kind of convenience and has produced cheaply the method for the instruction of the engagement state of power-transfer clutch 8, and does not need costliness or complicated power-transfer clutch engage transducer system, and it is more stable than the first embodiment in operation.

With reference to figure 4A to 6, it shows many gears hand-operated transmission 11 for being driven by driving engine 10 in the time putting into gear, and automatically stops the method with the driving engine 10 of starter motor motor vehicle 5.

The method starts at frame 205, and it is corresponding to the ignition lock open event that causes that driving engine 10 moves.

The method then advances to frame 210, and in this step, whether inspection machine motor vehicle 5 moves.That is to say, whether motor vehicle speed (VS) is greater than zero.If answer is "Yes", the method does not move on, and again returns to the speed of checking vehicles.That is to say, putting into gear stops only has in the time that car speed equals zero in fact and just may realize, and if car speed is not equal in fact zero, do not allow the parking of putting into gear.

If find that car speed is not more than zero, the method advances to frame 220.

In frame 220, check and whether meet the condition that the power-transfer clutch for inferring dissociates.These conditions have been made explanation according to Fig. 3 A and 3B above, and by it is no longer repeated.Therefore, if the result of this test as Fig. 3 A with the clutch state of the same deduction of frame 120 on 3B for dissociating, the method advances to frame 225 by frame 220, if and the clutch state of inferring is not defined as dissociating with the same power-transfer clutch of frame 140 on 3B as Fig. 3 A, the method advances to frame 227.

In frame 227, the expection previously having stored produces the value P of the clutch pedal position of the power-transfer clutch engagement state dissociating _s, the power-transfer clutch engagement state wherein dissociating occurs in current clutch pedal position P _pengage side, this be by clutch pedal position sensor 26 or other any can provide instruction clutch pedal position, therefore indicate the sensor of the output of power-transfer clutch engagement state to measure.For example,, if current clutch pedal position P _pinstruction pedal of clutch 25 be operated 73% of its range, all preservations lower than 73%, the value P of the clutch pedal position as 70% _sall by deleted.

Expection produces the value P of the clutch pedal position of the power-transfer clutch engagement state dissociating _sbe stored as the data set in clutch pedal position memory device 16M, wherein clutch pedal position memory device 16M forms a part for electronic control unit 16 in this example, but also can be a part for another electronic unit or controller.Therefore delete clutch pedal position P from the data centralization being stored in clutch pedal position memory device 16M _s.

This technology, by the variation in the clutch seizure point that removes clutch pedal position carry out adaptive system from clutch pedal position memory device 16M, can no longer rely on clutch pedal position and produce the clutch state dissociating.

Whether continue frame 227, the method advances to frame 228 by frame 227, and in this step, driving engine 10 does not stop, and be then back to frame 210 and move with inspection machine motor vehicle 5 again.

Refer back to now frame 220, if met condition, the method advances to frame 225 by frame 220, in this step, and current clutch pedal position P _pread from clutch pedal position sensor 26, and be temporarily saved as the clutch pedal position P corresponding to the clutch state dissociating of inferring _pc.Alternatively, be kept at the up-to-date value P in step 230 _scan be for later comparison object.

The method then advances to frame 230, in this step, and current clutch pedal position P _pbe added to the data centralization of clutch pedal position memory device 16M, the value P dissociating as the power-transfer clutch of up-to-date preservation _s.That is to say, because power-transfer clutch 8 has been inferred to be and has dissociated, so current clutch pedal position P _prepresent the up-to-date clutch pedal position relevant with the state dissociating of power-transfer clutch 8, and will generally comprise the clutch pedal position P of " n " individual up-to-date preservation _s.

Clutch pedal position memory device 16M is overlaying memory or rolling register memory (rolling register memory).That is to say, have the clutch pedal position value P of the storage of " n " individual fixed qty _s, such as but not limited to, 50 positions, and as the 51 clutch pedal position value P _pwhile being added in clutch pedal position memory device 16M, the clutch pedal position value of the oldest storage is capped or leaves out from memory device, so that clutch pedal position memory device 16M is updated to cause the variation in power-transfer clutch 8 or drive system all the time, as the variation in biting point.Before clutch pedal position memory device 16M reaches its limit, clutch pedal position value is stored in data centralization with their received orders.

The method advances to frame 235 by frame 230, to determine whether to meet the condition stopping for SIG.

The full terms stopping for SIG is:

1/ car speed equals zero, and is indicated by vehicle speed sensor 21; And

The state of 2/ power-transfer clutch of inferring is for dissociating; And

The 3/ current gear of having selected, is indicated by gear selector sensor 12; And

4/ Das Gaspedal 18 is not operated, and is indicated by accelerator pedal position sensor 19; And

5/ brake pedal 23 is operated, and is indicated by brake pedal sensor 24;

And

6/ does not exist any engine stop to stop factor, as low state of charge or the system mistake of a large amount of electricity needs of air-conditioning unit, battery.

Condition 1 and 2 has been made test in frame 210 and 220, and actual requirement that therefore will be satisfied in frame 235 is:

Currently select that gear, Das Gaspedal 18 are not operated, brake pedal 23 is operated and do not existed any engine stop to stop factor.

If met these conditions in frame 225, the method advances to frame 228, and in this step, driving engine 10 does not stop and whether the method is back to frame 210 and moves with inspection machine motor vehicle 5 again.

But if met SIG stop condition in frame 235, the method advances to frame 237, in this step, driving engine 10 stops, so that as indicated in driving engine-closed condition in frame 240.

When driving engine 10 is during in tail-off state, as indicated clutch pedal position P in frame 245 _pmonitored continuously, for determining whether restart driving engine 10, and then in frame 250, determined whether to meet the condition for SIG engine starting.

The condition starting for SIG is shown in Fig. 4 C, and detailed description now.

In frame 250a, determine that SIG starts whether request is the request that chaufeur causes, for example release the brake pedal 23 or the pedal 18 of stepping on the throttle.If starting request is not the startup that chaufeur causes, the method advances to frame 250n, and it only confirms to start the startup request causing for system, as the lower state of charge of battery 15 or for the request of air-conditioning.

The method then advances to frame 250p to check current clutch pedal position P _pwhether be more than or equal to the clutch pedal position P corresponding to the clutch state dissociating of the deduction of previously having preserved _pc.That is to say whether change since driving engine 10 stops rear clutch pedal position?

Fig. 5 A shows this process diagrammatically.Point " a " is kept at the clutch pedal position P in frame 225 when driving engine 10 stops in frame 237 _pc, and point " b " and " c " represent two kinds of possible current clutch pedal position P _p.If current clutch pedal position P _pfor example, by the equaling or the side of dissociating of the points of proximity " a " of point " c " instruction, the test in frame 250p will be passed through.On the contrary, if current clutch pedal position P _pthe clutch pedal position P of the ratio storage of for example being indicated by point " b " _pcdegree of engagement is larger, and the test in frame 250p will failure.

This can be expressed as according to clutch pedal position amplitude:

If P _p<P _pc, forward frame 250r to; Otherwise forward frame 250y to.

Be to be understood that, if there is not any mistake in clutch actuation system, 0% clutch pedal position has indicated pedal of clutch not to be operated at all, and power-transfer clutch 8 will be engaged clearly, and 100% clutch pedal position amplitude has indicated pedal of clutch 25 to be floored completely, and power-transfer clutch 8 will be dissociated clearly.

Therefore, what cause for system restarts request, if clutch pedal position P _pin the time that driving engine 10 stops, changing into the position that degree of engagement is larger, restart and will not be allowed to.

In frame 250r, do not meet the condition starting for SIG, this is because the failure of clutch pedal position test in frame 250p, and the method advances to frame 255 by frame 250, in this step, can give request or SIG that chaufeur floors power-transfer clutch/selection neutral and start the warning that cannot realize.The method then advances to frame 240 by frame 255, and in this step, driving engine 10 remains on closed condition.

In the time of engine stop, if current clutch pedal position P _pbe equal to or greater than the clutch pedal position P of storage _pc, be back to frame 250, that is to say clutch pedal position P _pidentical or dissociate to a greater degree, then the method advances to frame 250y, then by frame 250 to frame 260, in this step, driving engine 10 is activated.The method then advances to frame 280 by frame 260, in this step, checks whether ignition lock close event has occurred, if occurred, the method finishes at frame 290, otherwise in fact whether it be back to frame 210 and equal zero with the speed of checking vehicles.

Should be appreciated that in fact, this system can also comprise time meter or postpone to consider that chaufeur changes mind, to prevent that driving engine 10 is activated and after this then once more stop immediately.The control technology of changing mind for the treatment of chaufeur has been made explanation in No. 2427441 British patent.

Therefore, the startup causing in system, if the power-transfer clutch in frame 250p dissociates, test is passed through, and driving engine 10 is restarted.As unshowned possibility, the frame between frame 250p and 250y can be made and checking to guarantee not exist system mistake.In this example, if there is no system mistake, the method will advance to frame 250y, otherwise will advance to frame 250r.

Be back to the frame 250a on Fig. 4 C, if start the startup request that request causes for chaufeur, the method advances to frame 250b to contrast the clutch pedal position P of the data centralization that is stored in clutch pedal position memory device 16M _scheck current clutch position P _p.If current clutch pedal position P _pbe equal to or greater than any clutch pedal position P being stored in clutch pedal position memory device 16M that minimum degree is dissociated _sclutch pedal position, the test in frame 250b will be passed through, otherwise its will failure.

If test crash, the method will advance to frame 250f by frame 250b, and then advance to frame 255 and 240 by frame 250 as mentioned before, and driving engine 10 cuts out maintenance.

Fig. 5 B shows the clutch pedal position P in clutch pedal position memory device that is kept at of representative number _s, it is expressed as " test of passing through " on Fig. 5 B.The bound of this scope is by the minimum P of clutch pedal position of data centralization that is kept at clutch pedal position memory device 16M _sminand be kept at the maxim P of the clutch pedal position in clutch pedal position memory device 16M _smaxdefine.These values are for being stored in the value in frame 230.Notice, the value that is expressed as " failed test " on Fig. 5 B is the clutch pedal position P more early preserving deleted in frame 227 _s.These are all removed or delete, and this is because therefore the failure of joint test of inferring supposes that corresponding clutch pedal position will cause that the clutch state dissociating is no longer safe now.

If current clutch position P _pbe greater than P _smin, the test in frame 250b will be passed through.

If meet the test in frame 250b, the method advances to frame 250x by frame 250b.In frame 250x, check and whether meet every other SIG entry condition.

The condition that is used for the SIG startup that departs from the power-transfer clutch dissociating is:

The 1/ current gear of having selected;

And

2a/ brake pedal 23 by be operated move to released;

Or

2b/ Das Gaspedal 18 is operated by released moving to;

And

3/ does not exist any engine starting to stop factor, for example system mistake.

In this example, if brake pedal is released or throttle is operated, this can be considered to restart binary pair.

Therefore, the in the situation that of this embodiment, selected gear if current, and brake pedal 23 released or Das Gaspedal 18 has been operated, and do not exist any engine starting to stop factor, the method advances to frame 250y by frame 250x, otherwise it advances to frame 250f, and then advances to frame 255 and 240 by frame 250 as mentioned before.

Should be appreciated that and can in frame 250a, meet condition 2a and 2b, no matter and change-speed box 11 whether in putting into gear, driving engine 10 can be activated, but for SIG start situation, change-speed box 11 must be in putting into gear.

About above-mentioned condition 2a and 2b, should be appreciated that its by depend on the configuration of the vehicle relevant to these conditions and enable restart binary pair.

In certain embodiments, only have brake pedal position to be used as restarting binary pair, in other embodiments, only have accelerator pedal position to be used as restarting binary pair, but in described embodiment, if brake pedal position becomes released or accelerator pedal position and is operated from released becoming from being operated, it is used as restarting binary pair.

Advance to frame 260 from frame 250y the method by frame 250, in this step, driving engine 10 is activated.The method then advances to frame 280, and in this step, whether its inspection ignition lock close event has occurred, if occurred, the method finishes at frame 290, otherwise in fact whether it be back to frame 210 and equal zero with the speed of checking vehicles.

Therefore, the method for the disclosed SIG for control engine 10 operation depends on for the essence of the request of engine starting and uses two kinds of different clutch positions tests.If started as chaufeur causes, if with start for by start stop system due to variation in the operation of power actuated vehicle 5 automatically cause compared with will use less-restrictive test.These have increased the chance of start the engine 10 in the case of do not increase the risk of accidental motion in the time that chaufeur does not wish to start.Should be appreciated that and want to realize the request that chaufeur causes, chaufeur must ask to start by mobile brake pedal or Das Gaspedal effectively, therefore will recognize to start to be about to occur.

Fig. 6 shows the position BP(1 in driving engine 10 initial biting point when biting point has been stopped by driving engine 10 in the periodic process in closed condition) be changed to suddenly current biting point BP(2) situation.Although this situation unlikely occurs and will show that problem has appearred in power-transfer clutch 8 or clutch actuation system, the impact of this variation is great for power-transfer clutch engagement state.

Clutch position P when point " d " stops for driving engine 10 _pc, and point " e " is current clutch pedal position P _p.Notice, in this example, due to current clutch pedal position P _pnow at clutch seizure point BP(2) engage side on, therefore engine starting may cause some vehicle movement, however due to chaufeur asking start, therefore this is acceptable and does not bring serious safety hazards.But next time is while running into frame 220, test may failure, therefore all new biting point BP(2) engage side on clutch pedal position all possibility will be deleted.

As described above, change-speed box 11 is the power-transfer clutch engagement state method for stopping having used comformability to infer with the method for start the engine 10 in the time putting into gear, to the chance of the increase of having been restarted after driving engine 10 has stopped being provided.The basic step of the method is shown in Figure 7.

The method starts in step 310, and this step is ignition lock open event, and after this step, it advances to the frame 320 that driving engine 10 moves.As indicated in frame 330, clutch pedal position P _pconstantly monitored by clutch pedal position sensor 26, and in frame 340, receive the request of determining the clutch state of inferring.In this example, the request of definite power-transfer clutch engagement state of inferring can be that change-speed box 11 remains in the request causing in order to realize the chaufeur of engine stop while putting into gear.The power-transfer clutch engagement state of inferring is determined according to Fig. 3 A or Fig. 3 B as mentioned before.

Determine the power-transfer clutch engagement state of inferring in frame 340 after, the method advances to frame 350, determines whether the power-transfer clutch engagement state of inferring is " dissociating " in this step.If the power-transfer clutch engagement state of inferring is " dissociating ", the method advances to frame 360, otherwise it is back to frame 370.

In the frame 360 of the frame 230 corresponding on Fig. 4 A, current clutch pedal position P _pbe added to the data centralization being kept in clutch pedal position memory device 16M, to be inferred to be the clutch pedal position dissociating by its renewal with up-to-date.By this way, clutch pedal position memory device 16M is with being inferred to be the clutch pedal position P dissociating _padditional value constantly updated, thereby produce the clutch pedal position P of a series of preservations _s, all these clutch pedal position P _sall be considered to the clutch pedal position that expection produces the clutch state dissociating.Clutch pedal position P _sfor the position of inferring, be not actual position, this is because current clutch seizure point is in fact unknown, the therefore clutch pedal position P of these preservations _scan not be defined as clearly the state that represents that power-transfer clutch dissociates.

After frame 360, the method advances to frame 380, with test, whether ignition lock close event has occurred, if occurred, the method finishes at frame 390, otherwise it is back to frame 320 to carry out circulation next time.

If the power-transfer clutch engagement state of inferring in frame 350 is not " dissociating ", the method advances to frame 370.In frame 370, all data centralizations at clutch pedal position memory device 16M that preserve with current clutch pedal position P _pcompare the clutch pedal position P that degree of engagement is larger _sall deleted.This is because current clutch pedal position P _pin the time that the clutch pedal position of inferring is not " dissociating ", occur, therefore suppose that the clutch pedal position that this clutch pedal position or degree of engagement are larger is unsafe by causing the state that power-transfer clutch dissociates.For example,, if current clutch pedal position P _pbe 71%, be allly less than 71%, as 70%, 69% etc. P _sbe worth all deleted.Should be appreciated that for the value of this comparison can not be percentum, and can be the similar or numeral of clutch pedal position.

After frame 370, the method advances to frame 380, with test, whether ignition lock close event has occurred, if occurred, the method finishes at frame 390, otherwise it is back to frame 320 to carry out circulation next time.

Therefore, generally speaking, if clutch position P _pbe positioned at as the value P by previously having preserved _sdissociating in memory areas of the deduction of definition, the SIG that chaufeur causes in the time not existing any startup to stop factor is restarted request and will be allowed to.If clutch pedal position P _poutside the memory areas of dissociating of inferring, move, SIG is restarted request and is not allowed to.

Cause in system restart, when engine stop and while there is not any startup-prevention factor, these are only at clutch pedal position P _pbe equal to or greater than the clutch pedal position P corresponding to the clutch state dissociating of inferring _pcin time, is just allowed to.The startup causing in system, come with the memory areas of dissociating of the deduction of gamut that not permission system causes restart former because system can not compensate the obvious motion of the clutch seizure point of rapid generation as shown in Figure 6 immediately.Rapid variation in this biting point can cause that vehicle unexpectedly moves.The startup causing at chaufeur, this is acceptable, because may chaufeur intend to drive to drive away making the moment of restarting request that chaufeur causes, therefore chaufeur will be warned and be ready to control vehicle movement.But, can occur in the situation of restarting that automatic system that SIG stops any time of event causes, if vehicle accelerates suddenly, chaufeur may not be controlled vehicle.

The power-transfer clutch that should be appreciated that the deduction of a storage P that dissociates _sdata set will make in itself self adapt to the As time goes on any motion in either direction in actual clutch seizure point (as caused by clutch abrasion, self-regulation or hydraulic fluid evaporation/degeneration).

Although in the example providing, having proposed to be kept at data set in clutch pedal position memory device 16M will circulate in car key in (key cycle) process and be kept, but this needs not to be this situation, and clutch pedal position memory device 16M can be eliminated in each key circulation alternatively.

Although the joint by the motion control power-transfer clutch 8 due to pedal of clutch 25 and dissociating of the present invention, has made exemplary illustration by clutch pedal position as the embodiment of the instruction of power-transfer clutch engagement state.But should be appreciated that the measurement that also can use the motion with other the clutch actuation system parts relevant with power-transfer clutch engagement state, and term " clutch pedal position " is intended to cover these other measurements.For example, the sensor of the motion of in measurement slave cylinder piston, slave cylinder take-off lever, master cylinder piston, master cylinder input bar or clutch release rod can produce the signal that is associated with power-transfer clutch engagement state and is equal to " clutch pedal position ".

Should be appreciated that pedal of clutch can be manually operated clutch release assembly alternatively, and Das Gaspedal can be similarly manually operated chaufeur torque demand device.

Those skilled in the art are to be understood that, although the present invention has made explanation with reference to one or more embodiment by example, but it is not limited to the disclosed embodiments, and in the situation that not deviating from claim limited range of the present invention, can build other embodiment.

Claims

One kind for generation of by the engine drive of power actuated vehicle be connected to the method for power-transfer clutch engagement state that the comformability of manual multi-shifting speed variator is inferred, wherein the engagement state of power-transfer clutch is controlled by the motion of pedal of clutch, it is characterized in that, the method comprises: the position of monitoring pedal of clutch, in the time that equalling zero in fact, the speed of vehicle in front produces the power-transfer clutch engagement state of inferring, select the gear in the change-speed box of vehicle, driving engine operation, the power-transfer clutch engagement state of inferring is to preserve the clutch pedal position when pre-test while dissociating, the power-transfer clutch engagement state of inferring is not to remove while dissociating and the clutch pedal position of the preservation that degree of engagement is larger compared with the clutch pedal position of pre-test.
2. according to the method described in claim 1, it is characterized in that, the preservation of the clutch pedal position of preservation and removing has produced expection and has produced the Adaptive Data collection of the clutch pedal position of the power-transfer clutch engagement state dissociating.
3. according to the method described in claim 2, it is characterized in that, preserve when the clutch pedal position of pre-test comprises and use the data set that upgrades clutch pedal position when the clutch pedal position of pre-test.
4. according to the method described in claim 3, it is characterized in that, described data set has the clutch pedal position of the preservation of predefined quantity, and in the time that data set is full of, more new data set comprises the clutch pedal position that covers the oldest preservation with up-to-date clutch pedal position.
5. according to the method described in any one in claim 2 to 4, it is characterized in that, the clutch pedal position that removes preservation comprises the clutch pedal position that removes all preservations that degree of engagement is larger compared with working as the clutch pedal position of pre-test from data centralization.
6. according to the method described in any one in claim 1 to 5, it is characterized in that, if the moment of torsion being transmitted by power-transfer clutch is essentially zero, the method comprises deduction power-transfer clutch engagement state for dissociating, otherwise infers that power-transfer clutch engagement state is not for dissociating.
7. one kind drives the method for keeping off the driving engine of the power actuated vehicles of hand-operated transmissions for stopping and starting by power-transfer clutch more, wherein the engagement state of power-transfer clutch is controlled by pedal of clutch, it is characterized in that, the method comprises: the request that is identified for engine starting is the request of chaufeur generation or the request that system produces, and if start the request that request produces for chaufeur, the clutch pedal position dissociating based on when the clutch pedal position of pre-test and the deduction of multiple storages of the method generation as any one in claim 1 to 6 described in relatively determine whether start the engine.
8. according to the method described in claim 7, it is characterized in that, if current clutch pedal position is equal to, or greater than the clutch pedal position of the preservation of minimum dissociation degree, the method comprises start the engine.
9. according to the method described in claim 7 or 8, it is characterized in that, if current clutch pedal position is less than the clutch pedal position of the preservation of minimum dissociation degree, the method comprises not start the engine.
10. according to the method described in any one in claim 7 to 9, it is characterized in that, if engine starting request is the request that system produces, when the clutch pedal position based on current and engine stop clutch pedal position relatively determine whether start the engine.
11. according to the method described in claim 10, it is characterized in that, if clutch pedal position during with engine stop its dissociated state the same or larger than its dissociation degree, the method comprises start the engine.
12. according to the method described in claim 7 or 8, it is characterized in that, if clutch pedal position during than engine stop its degree of engagement larger, the method comprises not start the engine.
13. according to the method described in any one in claim 4 to 9, it is characterized in that, in response to the change-speed box engine stop request that chaufeur produces in the time putting into gear and power actuated vehicle is static, the power-transfer clutch engagement state that the method also comprises based on inferring determines whether to allow engine stop.
14. according to the method described in claim 13, it is characterized in that, if the power-transfer clutch engagement state of inferring is for dissociating, and engine stop, otherwise it keeps operation.
15. according to the method described in claim 14, it is characterized in that, if the moment of torsion being transmitted by power-transfer clutch is essentially zero, power-transfer clutch engagement state is inferred to be and dissociates.
16. 1 kinds for stopping and starting the device that drives the driving engine of the power actuated vehicle of many gear hand-operated transmissions by power-transfer clutch, wherein the engagement state of power-transfer clutch is by pedal of clutch control, it is characterized in that, this device comprises and is operable as the electronic control unit that the request that is identified for engine starting is the request that produces of the request that produces of chaufeur or system, and if start the request that request produces for chaufeur, electronic control unit be operable as based on measured by clutch position sensor when the clutch pedal position of pre-test be stored in the multiple deductions in the memory device of electronic control unit the clutch pedal position dissociating relatively determine whether start the engine.
17. 1 kinds of methods, is characterized in that, the method in fact as above with reference to as described in accompanying drawing, the power-transfer clutch engagement state of inferring for generation of the comformability of power-transfer clutch.
18. 1 kinds of methods, is characterized in that, the method in fact as above with reference to as described in accompanying drawing, for stopping and the driving engine of starter motor motor vehicle.
19. 1 kinds of devices, is characterized in that, this device in fact as above with reference to as described in accompanying drawing, for stopping and starting the driving engine that drives the power actuated vehicles of many gear hand-operated transmissions by power-transfer clutch.