CN107420535A - A kind of moment of torsion Pre-control System and method based on double clutch - Google Patents

A kind of moment of torsion Pre-control System and method based on double clutch Download PDF

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Publication number
CN107420535A
CN107420535A CN201710756835.3A CN201710756835A CN107420535A CN 107420535 A CN107420535 A CN 107420535A CN 201710756835 A CN201710756835 A CN 201710756835A CN 107420535 A CN107420535 A CN 107420535A
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China
Prior art keywords
clutch
motor
moment
control unit
rotating speed
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CN201710756835.3A
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Chinese (zh)
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CN107420535B (en
Inventor
胡亮
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Anhui Jianghuai Automobile Group Corp
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Anhui Jianghuai Automobile Group Corp
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Priority to CN201710756835.3A priority Critical patent/CN107420535B/en
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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
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
    • F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
    • F16H61/0204—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D48/00—External control of clutches
    • F16D48/06—Control by electric or electronic means, e.g. of fluid pressure
    • 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
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/04—Smoothing ratio shift
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2500/00—External control of clutches by electric or electronic means
    • F16D2500/10—System to be controlled
    • F16D2500/11—Application
    • F16D2500/1107—Vehicles

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

The invention discloses a kind of moment of torsion Pre-control System and method based on double clutch, the system includes transmission control unit, double clutch, speed change gear and motor control unit；Double clutch is connected with motor；First clutch in motor is connected with engine；Transmission control unit is according to the rotating speed of motor, the electricity of motor or accelerator open degree, whether first clutch work is normal and whether working condition is not disengage, currently mix whether motor-car is that pure electricity traveling determines whether to carry out moment of torsion pre-control to the target clutch in double clutch；If it is, the first control signal of output, to reduce the operating pressure of target clutch, until the difference of the rotating speed of the rotating speed of motor and speed change gear is kept within a preset range, and maintains the torque value of target clutch and sends enabling signal to motor control unit.Using embodiment provided by the invention, the comfortableness of vehicle during electric motor starting engine is improved.

Description

A kind of moment of torsion Pre-control System and method based on double clutch
Technical field
The present invention relates to the moment of torsion control technical field of clutch, the torsion of double-clutch automatic speed-change device is based particularly on Square Pre-control System and method.
Background technology
Hybrid vehicle (referred to as mixed motor-car), also known as composite power automobile, refer to be equipped with two or two on car Above power source：Such as the generating set of battery, fuel cell, solar cell, diesel locomotive.Current composite power automobile Diesel locomotive generator is generally referred to, it is along with the automobile of battery, i.e., in-car dynamic comprising the equipment such as motor and motor, mixing The speed change gear that power is carried can be double-clutch speed changer.Typical wet-type dual-clutch transmission transmission device is same by two The clutch of axle nesting or parallel arrangement.Coaxially, two input shafts of inside and outside nested arrangement, the output shaft of two parallel arrangements, Multiple synchromesh gears, multiple selector forks and the 1 differential mechanism composition being arranged on output shaft.Odd, even several grades of speed changer Input gear is arranged on two input shafts, by the switching and the action of different synchronizers of two clutches, via not Convert and export with input shaft actual torque.
In the prior art, in the case of mixed motor-car Motor Capability abundance, pure electric drive (the i.e. motor of motor-car use is mixed Working)；When Motor Capability can not meet drive demand (such as situations such as moment of torsion deficiency of motor, motor not enough power supply), Now motor can drive engine start, engine is intervened work.In the prior art, engine, motor and speed changer are string Connection form, as shown in figure 1, first clutch is the clutch of connection engine in motor, opened during being worked in motor Dynamic engine, motor will control the clutch to combine substitution startup motor driven engine work；Second clutch and the 3rd from Clutch is the clutch on two input shafts in double clutch transmission device, confirms which clutch is combined based on gear (odd number gear keeps off and reversed gear in C2 in C1, even number).During electric motor starting engine, needed in the start-up course of engine High pulling torque, which drives, to be started, so the moment of torsion of motor can be improved, reaches the synchronization with motor in the rotating speed for making engine Afterwards, the moment of torsion of motor can decline.In this process, Motor torque increase and reduction speed change can be passed to by double clutch Device, hence for the sensation that acceleration and brake hard can be produced for occupant, the comfortableness of vehicle reduces, serious feelings Impact is even produced under condition.
The content of the invention
It is an object of the invention to provide a kind of moment of torsion Pre-control System and method based on double-clutch automatic gearbox, pass through Before electric motor starting engine, the moment of torsion of incoming speed change gear is kept not change, so as to keep the acceleration of vehicle not have Change significantly, to improve electric motor starting engine during vehicle comfortableness.
To solve prior art problem, the invention provides a kind of moment of torsion Pre-control System based on double clutch, including become Fast device control unit, double clutch, speed change gear and motor, motor control unit and engine；
The double clutch is connected with motor；
The motor control unit is connected with the motor；
First clutch in the motor is connected with engine；
The transmission control unit is used for according to the rotating speed of the motor, the electricity of the motor or accelerator open degree, institute Stating first clutch work, whether normal and working condition is not disengage, currently mix whether motor-car is pure electricity traveling, really It is fixed whether moment of torsion pre-control to be carried out to the target clutch in the double clutch；If it is, the first control signal of output, with drop The operating pressure of the low target clutch, until the difference of the rotating speed of the rotating speed of the motor and speed change gear is maintained at default In the range of, and the torque value of the target clutch is maintained, so that the torque value for being delivered to speed change gear keeps constant；
The transmission control unit is additionally operable to send enabling signal to motor control unit, so that the motor control list First controlled motor starts engine.
Preferably, the transmission control unit includes：
Acquisition module, for obtaining the pressure value of any one clutch in the double clutch；
Judge module, for judging whether pressure value corresponding to each clutch exceedes preset pressure value；If it is, really The clutch that level pressure force value exceedes preset pressure value is target clutch.
Preferably, in addition to：
Adjustment unit, for according to current throttle aperture, adjusting the operating pressure of the target clutch.
In addition, present invention also offers a kind of moment of torsion pre-control method based on double clutch, including：
According to the rotating speed of the motor, the electricity of the motor or accelerator open degree, first clutch work whether just Often and whether working condition is not disengage, currently mix whether motor-car is pure electricity traveling, it is determined whether in the double clutch Target clutch carry out moment of torsion pre-control；If it is, the first control signal of output, to reduce the work of the target clutch Pressure, until the difference of the rotating speed of the rotating speed of the motor and speed change gear is kept within a preset range, and maintain the target The torque value of clutch, so that the torque value for being delivered to speed change gear keeps constant；
Enabling signal is sent to motor control unit, so that the motor control unit controlled motor starts engine.
Preferably, worked according to the rotating speed of the motor, the electricity of the motor or accelerator open degree, the first clutch Whether whether normal and working condition is not disengage, currently mix whether motor-car is pure electricity traveling, it is determined whether to it is described it is double from The clutch of work at present in clutch carries out moment of torsion pre-control and specifically included：
When the motor speed is more than 800rpm, motor electricity is in pure electricity no more than 30%, presently described mixed motor-car Transport condition, and the first clutch is normal and working condition is in the case of not disengaging, it is determined that in the double clutch Target clutch carry out moment of torsion pre-control.
Preferably, it is determined whether before carrying out moment of torsion pre-control to the target clutch in the double clutch, methods described Also include：Target clutch is determined, including：
Obtain the pressure value of any one clutch in the double clutch；
Judge whether pressure value corresponding to each clutch exceedes preset pressure value；
If it is, determine that the clutch that pressure value exceedes preset pressure value is target clutch.
Preferably, the first control signal is exported, to reduce the operating pressure of the target clutch, until the motor The difference of the rotating speed of rotating speed and speed change gear is kept within a preset range, and maintains the torque value of the target clutch, so that The torque value for being delivered to speed change gear keeps constant, including：The first control signal is exported, the mesh is reduced with default descending slope The operating pressure of clutch is marked, until the difference of the rotating speed of the rotating speed of the motor and speed change gear is maintained at 8rpm to 25rpm Between；
It is determined that now the torque value of target clutch and remain unchanged, so that the torque value for being delivered to speed change gear is kept not Become.
Preferably, in addition to：
According to current throttle aperture, the operating pressure of the target clutch is adjusted.
Compared with prior art, the work pressure that the present invention passes through the reduction target clutch before electric motor starting engine Power, and motor rotating speed and speed change gear rotating speed difference keep within a preset range keep target clutch moment of torsion Value, so that the torque value of input speed change gear is locking state, will not be because during electric motor starting engine is carried out Increase and reduction for motor torque values influence the input torque value of speed change gear, so as to keep the moment of torsion of incoming speed change gear Do not change, therefore, the acceleration of vehicle does not change significantly, and improves relaxing for vehicle in electric motor starting engine process Adaptive.
Brief description of the drawings
Fig. 1 is the connection diagram of engine, motor and speed changer in the prior art；
Fig. 2 is the structural representation of the moment of torsion Pre-control System provided in an embodiment of the present invention based on double clutch.
Embodiment
The embodiments described below with reference to the accompanying drawings are exemplary, is only used for explaining the present invention, and can not be construed to Limitation of the present invention.
Embodiments of the invention：As shown in Fig. 2 including transmission control unit 1, double clutch 2, speed change gear 3 and electricity Machine control unit 4；Double clutch 2 is connected with motor 5；First clutch in motor 5 is connected with engine 6；Transmission control Unit 1 is used for according to the rotating speed of motor 5, the electricity of motor 5 or accelerator open degree, whether first clutch work is normal and work shape Whether state is not disengage, currently mix whether motor-car is pure electricity traveling, it is determined whether the target clutch in double clutch 2 is entered Row moment of torsion pre-control；If it is, the first control signal of output, to reduce the operating pressure of target clutch 2, until motor 5 The difference of rotating speed and the rotating speed of speed change gear 3 is kept within a preset range, and maintains the torque value of target clutch 2, so as to pass The torque value for being delivered to speed change gear 3 keeps constant；Transmission control unit 1 is additionally operable to send enabling signal to motor control unit 4, so that the controlled motor 5 of motor control unit 4 starts engine 6.
It should be noted that the rotating speed of motor 5 and current electricity can be obtained by motor control unit 4, and Transmission control unit 1 is sent it to, and first clutch is connected in motor 5 with motor 5, its working condition can be direct Carry out feeding back to motor control unit 4 by the current state of motor 5, so as to which motor control unit 4 can turn motor 5 Speed, the working condition of electricity and first clutch and whether do not disengage and feed back to transmission control unit 1.Furthermore it is possible to manage Solution, when motor is there is also motor control unit, for receiving and the working condition of split-phase motor, when mixed motor-car In the state of pure electricity work, only motor is work, and engine is idle, so transmission control unit connects respectively Receive motor control unit and motor control unit feeds back in its signal and can obtained.Electricity described in the embodiment of the present invention Machine control unit and motor control unit are the controller being attached with motor and engine, and the technology is existing skill Art, it is not repeated herein.
It is understood that variable-speed controller unit 1 can be used for controlling speed change gear 3, shift control unit 1 can be The control unit of hardware, software or software and hardware combining composition.In addition, speed change gear 3 can be speed changer, speed change gear 3 with Double clutch 2 is connected, and the transmission or cut-out between power and speed change gear 3 are controlled by double clutch 2.
In the embodiment of the present invention, the power for mixing motor-car is provided by engine 6 or motor 5, so engine 6 is logical The first clutch crossed in motor 5 is attached, to determine power between engine 6 and motor 5 by first clutch Transmission or cut-off.It is used for the electricity that controlled motor 5 works it will be appreciated by persons skilled in the art that also being included in mixed motor-car Machine control unit 4, motor control unit 4 can be used for the startup, stopping, voltage, the electricity that can also carry out motor 5 of controlled motor Measurement and monitoring of stream and temperature etc., the embodiment of the present invention is not limited specifically it herein.
It will be appreciated by persons skilled in the art that mixed motor-car is under steam, engine 6 and motor 5 at least one It is in running order；When vehicle uses pure electronic power supply, it is possible that the not enough power supply of motor 5 or driver need Will be bigger throttle situations such as, and now when motor 5 provide be short of power, it is necessary to be switched to engine 6.The embodiment of the present invention In, pure electric transport condition is in when the rotating speed of motor 5 is not more than 30%, presently described mixed motor-car more than 800rpm, motor electricity, And the first clutch is normal and in the case that working condition does not disengage, it can confirm that to need to be switched to engine be vehicle Power is provided.In addition, when the working condition of the motor speed, first clutch under pure electric power supply state reaches above-mentioned condition, It can also it is expected that torque value judges whether to be switched to engine according to driver, the expectation torque value of driver can pass through The aperture of throttle obtains, exemplary, and accelerator open degree is with it is expected that it is as shown in table 1 below that torque value obtains corresponding relation.
Table 1
Accelerator open degree (%) 0 10 20 30 40 50 60 70 80 90 100
It is expected moment of torsion (Nm) 0 5 15 35 50 80 120 140 160 210 235
Exemplary, when driver steps on throttle, throttle can have an opening value, can be obtained according to the opening value The desired torque value of driver, exemplary, driver's pin is stepped on the gas so be considered as when the opening value reached is 30% and driven The torque value that the person of sailing it is expected to obtain is 35Nm.
It is working properly in first clutch and do not disengage, in the state of the pure electricity traveling of mixed motor-car in the embodiment of the present invention In the case of motor speed, electricity or driver it is expected that torque value reaches above-described embodiment requirement, show can not by motor Meet the present running status of vehicle, it is necessary to carry out motor forwarding motivation in time, can timely protect motor, avoid overload In the case of be damaged.
In the case where mixed motor-car is in pure motor driving state, when the electricity rotating speed, electricity or the throttle that meet above-mentioned motor 5 Opening value, first clutch working condition condition of work when, it is necessary to clutch to being currently operating in double clutch 2 Moment of torsion pre-control is carried out, the clutch of the work is target clutch.
, currently can be with the clutch of work to judge which clutch in double clutch 2 is in the embodiment of the present invention Target clutch is determined by the acquisition module in transmission control unit 1 and judge module (not shown).Obtain Module, for obtaining the pressure value of any one clutch in the double clutch；Judge module, for judging each clutch Whether pressure value corresponding to device exceedes preset pressure value；If it is, determine that the clutch that pressure value exceedes preset pressure value is mesh Mark clutch.
It should be noted that gear box control unit 1 can pass through the pressure of the pressure sensor gaging clutch of clutch Power, think that clutch is in running order when the pressure of clutch exceedes default value, in the embodiment of the present invention, default value Can be 250Kp, specifically, default value can also be 240Kp, 260Kp etc., the embodiment of the present invention is not carried out to it herein It is specific to limit.
After target clutch is determined, transmission control unit 1 sends the first control signal, and the first control signal is used To reduce the operating pressure of target clutch, reach the rotating speed of change speed change gear 3 by adjusting target clutch pressure, Kept within a preset range with the rotating speed difference of motor 5 making up to, the scope can be 8rpm to 25rpm, work as speed discrepancy The rotating speed that value can be considered as motor 5 in the range of this is identical with the rotating speed of speed change gear 3, locks the moment target clutch Pressure reaches the purpose for the torque value for maintaining target clutch 2.
It is understood that when the torque value of target clutch 2 remains unchanged, the moment of torsion of motor 5 changes transmission To target clutch 2, the torque value that target clutch 2 is sent to speed change gear 3 is also constant all the time.Exemplary, work as mesh When the torque value for marking the locking of clutch 2 is 50Nm, when the moment of torsion of motor 5 is 120Nm, then the moment of torsion of motor 5 is sent to target The torque value that can only have 50Nm after clutch 2 is sent to speed change gear, then torque value is not sent out for speed change gear 3 Raw any change.
It should be noted that now transmission control unit 1 sends enabling signal to motor control unit 4, can control Motor 5 starts engine 6, then motor 5 can increase torque value in start-up course, be kept in the rotating speed of motor 5 and engine 6 After synchronization, the torque value of motor 5 will decline, then all without leading during the torque value raising and lowering of motor 5 Cause the torque value of target clutch 2 to change, and then to be sent to speed change gear 3 during electric motor starting generator Torque value it is constant.
Using the embodiment shown in Fig. 2 of the present invention, by the work that target clutch is reduced before electric motor starting engine Make pressure, and keep keeping the torsion of target clutch within a preset range in the rotating speed of motor and the difference of rotating speed of speed change gear Square value, so that the torque value of input speed change gear is locking state, will not during electric motor starting engine is carried out The input torque value of speed change gear is influenceed because of the increase and reduction of motor torque values, so as to keep the torsion of incoming speed change gear Square does not change, and therefore, the acceleration of vehicle does not change significantly, and improves vehicle in electric motor starting engine process Comfortableness.
It will be appreciated by persons skilled in the art that during electric motor starting engine is carried out, when turning for engine Speed reaches with releasing the locking to target clutch pressure after the synchronization of motor, it is received the new torsion of driver The requirement of square desired value.Based on this, the clutch control unit 1 in the embodiment of the present invention can also include adjustment unit (in figure not Show), for according to current throttle aperture, adjusting the operating pressure of the target clutch so that the traveling of mixed motor-car is extensive It is multiple normal.
In addition, the embodiment of the present invention additionally provides a kind of moment of torsion pre-control method based on double clutch, including step is as follows：
According to the rotating speed of the motor, the electricity of the motor or accelerator open degree, first clutch work whether just Often and whether working condition is not disengage, currently mix whether motor-car is pure electricity traveling, it is determined whether in the double clutch Target clutch carry out moment of torsion pre-control；If it is, the first control signal of output, to reduce the work pressure of the target clutch Power, until the motor rotating speed and speed change gear rotating speed difference keep within a preset range, and maintain the target from The torque value of clutch, so that the torque value for being delivered to speed change gear keeps constant；Enabling signal is sent to motor control unit, with The motor control unit controlled motor is set to start engine.
Specifically, worked according to the rotating speed of the motor, the electricity of the motor or accelerator open degree, the first clutch Whether whether normal and working condition is not disengage, currently mix whether motor-car is pure electricity traveling, it is determined whether to it is described it is double from The clutch of work at present in clutch carries out moment of torsion pre-control and specifically included：
When the motor speed is more than 800rpm, motor electricity is in pure electricity no more than 30%, presently described mixed motor-car Transport condition, and the first clutch is normal and working condition is in the case of not disengaging, it is determined that in the double clutch Target clutch carry out moment of torsion pre-control.
Specifically, it is determined that before whether carrying out moment of torsion pre-control to the target clutch in the double clutch, methods described Also include：Target clutch is determined, including：
Obtain the pressure value of any one clutch in the double clutch；
Judge whether pressure value corresponding to each clutch exceedes preset pressure value；
If it is, determine that the clutch that pressure value exceedes preset pressure value is target clutch.
Further, the first control signal is exported, to reduce the operating pressure of the target clutch, until the motor Rotating speed and the difference of rotating speed of speed change gear keep within a preset range, and maintaining the torque value of the target clutch, with The torque value for being delivered to speed change gear is set to keep constant, including：The first control signal is exported, with described in default descending slope reduction The operating pressure of target clutch, until the difference of the rotating speed of the rotating speed of the motor and speed change gear is maintained at 8rpm extremely Between 25rpm；It is determined that now the torque value of target clutch and remain unchanged, so that the torque value for being delivered to speed change gear is kept It is constant.
Specifically, the embodiment of the present invention can also be as follows including step：
According to current throttle aperture, the operating pressure of the target clutch is adjusted.
Above step is identical with the moment of torsion Pre-control System content based on double clutch shown in Fig. 1, and the embodiment of the present invention exists This is not repeated it.
Compared with prior art, using the moment of torsion pre-control method provided in an embodiment of the present invention based on double clutch, pass through The operating pressure of target clutch is reduced before electric motor starting engine, and in the rotating speed of motor and the rotating speed of speed change gear Difference keeps keeping the torque value of target clutch within a preset range, so that the torque value of input speed change gear is locked State, speed change gear will not be influenceed because of increase and the reduction of motor torque values during electric motor starting engine is carried out Input torque value, so as to keep the moment of torsion of incoming speed change gear not change, therefore, the acceleration of vehicle is not obvious Change, improve the comfortableness of vehicle in electric motor starting engine process.
Construction, feature and the action effect of the present invention, above institute is described in detail according to the embodiment shown in schema above Only presently preferred embodiments of the present invention is stated, but the present invention is not to limit practical range shown in drawing, it is every according to structure of the invention Want made change, or be revised as the equivalent embodiment of equivalent variations, when still without departing from specification and illustrating covered spirit, All should be within the scope of the present invention.

Claims (8)

  1. A kind of 1. moment of torsion Pre-control System based on double clutch, it is characterised in that including transmission control unit, double clutch, Speed change gear and motor, motor control unit and engine；
    The double clutch is connected with motor；
    The motor control unit is connected with the motor；
    First clutch in the motor is connected with engine；
    The transmission control unit is used for according to the rotating speed of the motor, the electricity of the motor or accelerator open degree, described the Whether whether normal and working condition is not disengage, currently mix whether motor-car is pure electricity traveling to the work of one clutch, it is determined that being The no target clutch in the double clutch carries out moment of torsion pre-control；If it is, the first control signal of output, to reduce The operating pressure of target clutch is stated, until the difference of the rotating speed of the rotating speed of the motor and speed change gear is maintained at preset range It is interior, and the torque value of the target clutch is maintained, so that the torque value for being delivered to speed change gear keeps constant；
    The transmission control unit is additionally operable to send enabling signal to motor control unit, so that the motor control unit control Electric motor starting engine processed.
  2. 2. the moment of torsion Pre-control System according to claim 1 based on double clutch, it is characterised in that the transmission control Unit includes：
    Acquisition module, for obtaining the pressure value of any one clutch in the double clutch；
    Judge module, for judging whether pressure value corresponding to each clutch exceedes preset pressure value；If it is, determine pressure The clutch that force value exceedes preset pressure value is target clutch.
  3. 3. the moment of torsion Pre-control System according to claim 1 based on double clutch, it is characterised in that also include：
    Adjustment unit, for according to current throttle aperture, adjusting the operating pressure of the target clutch.
  4. A kind of 4. moment of torsion pre-control method based on double clutch, it is characterised in that including：
    According to the rotating speed of the motor, the electricity of the motor or accelerator open degree, first clutch work it is whether normal and Whether working condition is not disengage, currently mix whether motor-car is pure electricity traveling, it is determined whether to the mesh in the double clutch Mark clutch and carry out moment of torsion pre-control；If it is, the first control signal of output, to reduce the work pressure of the target clutch Power, until the motor rotating speed and speed change gear rotating speed difference keep within a preset range, and maintain the target from The torque value of clutch, so that the torque value for being delivered to speed change gear keeps constant；
    Enabling signal is sent to motor control unit, so that the motor control unit controlled motor starts engine.
  5. 5. the moment of torsion pre-control method according to claim 4 based on double clutch, it is characterised in that according to the motor Whether whether normal and working condition is not de- for rotating speed, the electricity of the motor or accelerator open degree, first clutch work Open, currently mix whether motor-car is pure electricity traveling, it is determined whether the clutch of the work at present in the double clutch is carried out Moment of torsion pre-control specifically includes：
    When the motor speed is more than 800rpm, motor electricity is in pure electricity no more than 30%, presently described mixed motor-car and travelled State, and the first clutch is normal and working condition is in the case of not disengaging, it is determined that to the mesh in the double clutch Mark clutch and carry out moment of torsion pre-control.
  6. 6. the moment of torsion pre-control method according to claim 4 based on double clutch, it is characterised in that determine whether to described Before target clutch in double clutch carries out moment of torsion pre-control, methods described also includes：Target clutch is determined, including：
    Obtain the pressure value of any one clutch in the double clutch；
    Judge whether pressure value corresponding to each clutch exceedes preset pressure value；
    If it is, determine that the clutch that pressure value exceedes preset pressure value is target clutch.
  7. 7. the moment of torsion pre-control method according to claim 4 based on double clutch, it is characterised in that the control letter of output first Number, to reduce the operating pressure of the target clutch, until the difference of the rotating speed of the rotating speed of the motor and speed change gear is protected Hold within a preset range, and maintain the torque value of the target clutch, so that the torque value for being delivered to speed change gear is kept not Become, including：The first control signal is exported, the operating pressure of the target clutch is reduced to preset descending slope, until described The difference of the rotating speed of motor and the rotating speed of speed change gear is maintained at 8rpm between 25rpm；
    It is determined that now the torque value of target clutch and remain unchanged, so that the torque value for being delivered to speed change gear keeps constant.
  8. 8. the moment of torsion pre-control method according to claim 4 based on double clutch is characterized in that, also include：
    According to current throttle aperture, the operating pressure of the target clutch is adjusted.
CN201710756835.3A 2017-08-29 2017-08-29 A kind of torque Pre-control System and method based on double clutch Active CN107420535B (en)

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CN201710756835.3A CN107420535B (en) 2017-08-29 2017-08-29 A kind of torque Pre-control System and method based on double clutch

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Application Number Priority Date Filing Date Title
CN201710756835.3A CN107420535B (en) 2017-08-29 2017-08-29 A kind of torque Pre-control System and method based on double clutch

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CN107420535B CN107420535B (en) 2019-03-26

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CN108275141A (en) * 2018-02-05 2018-07-13 安徽江淮汽车集团股份有限公司 The control method of mixed dynamic double clutch automatic speed changing case torque pre-control
CN109113881A (en) * 2018-08-21 2019-01-01 安徽江淮汽车集团股份有限公司 Diesel engine emissions system control method
CN110094435A (en) * 2018-01-31 2019-08-06 长城汽车股份有限公司 DCT clutch moment of torque acquisition methods based on ESP state
CN110778620A (en) * 2019-11-14 2020-02-11 安徽江淮汽车集团股份有限公司 Clutch transmission torque calibration method, device, storage medium and device
WO2021143071A1 (en) * 2020-01-19 2021-07-22 蜂巢传动科技河北有限公司 Engine control method and device for hybrid vehicle
CN113700773A (en) * 2021-08-31 2021-11-26 中国第一汽车股份有限公司 Self-learning method and device for clutch half-joint point position
CN113983160A (en) * 2021-10-29 2022-01-28 重庆长安汽车股份有限公司 Clutch torque control method and system for torque exchange stage of dual-clutch automatic transmission
CN114987437A (en) * 2022-04-24 2022-09-02 东风柳州汽车有限公司 Hybrid vehicle driving mode adjusting method, device, equipment and storage medium
CN115782821A (en) * 2022-11-25 2023-03-14 重庆长安汽车股份有限公司 Static valve washing method and system for electromagnetic valve of hybrid power transmission

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Publication number Priority date Publication date Assignee Title
CN110094435A (en) * 2018-01-31 2019-08-06 长城汽车股份有限公司 DCT clutch moment of torque acquisition methods based on ESP state
CN108275141A (en) * 2018-02-05 2018-07-13 安徽江淮汽车集团股份有限公司 The control method of mixed dynamic double clutch automatic speed changing case torque pre-control
CN108275141B (en) * 2018-02-05 2020-04-28 安徽江淮汽车集团股份有限公司 Control method for torque pre-control of hybrid double-clutch automatic gearbox
CN109113881A (en) * 2018-08-21 2019-01-01 安徽江淮汽车集团股份有限公司 Diesel engine emissions system control method
CN109113881B (en) * 2018-08-21 2020-06-23 安徽江淮汽车集团股份有限公司 Diesel engine emission system control method
CN110778620A (en) * 2019-11-14 2020-02-11 安徽江淮汽车集团股份有限公司 Clutch transmission torque calibration method, device, storage medium and device
WO2021143071A1 (en) * 2020-01-19 2021-07-22 蜂巢传动科技河北有限公司 Engine control method and device for hybrid vehicle
CN113700773A (en) * 2021-08-31 2021-11-26 中国第一汽车股份有限公司 Self-learning method and device for clutch half-joint point position
CN113700773B (en) * 2021-08-31 2022-07-12 中国第一汽车股份有限公司 Self-learning method and device for position of half-joint point of clutch
CN113983160A (en) * 2021-10-29 2022-01-28 重庆长安汽车股份有限公司 Clutch torque control method and system for torque exchange stage of dual-clutch automatic transmission
CN114987437A (en) * 2022-04-24 2022-09-02 东风柳州汽车有限公司 Hybrid vehicle driving mode adjusting method, device, equipment and storage medium
CN115782821A (en) * 2022-11-25 2023-03-14 重庆长安汽车股份有限公司 Static valve washing method and system for electromagnetic valve of hybrid power transmission

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