CN105814332B - Contact point determines - Google Patents

Contact point determines Download PDF

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Publication number
CN105814332B
CN105814332B CN201480065789.7A CN201480065789A CN105814332B CN 105814332 B CN105814332 B CN 105814332B CN 201480065789 A CN201480065789 A CN 201480065789A CN 105814332 B CN105814332 B CN 105814332B
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CN
China
Prior art keywords
transmission shaft
clutch
shaft
torque
motor
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Active
Application number
CN201480065789.7A
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Chinese (zh)
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CN105814332A (en
Inventor
阿图尔·施拉帕
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Schaeffler Technologies AG and Co KG
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Schaeffler Technologies AG and Co KG
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Publication of CN105814332A publication Critical patent/CN105814332A/en
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Classifications

    • 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
    • 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
    • F16D48/064—Control of electrically or electromagnetically actuated clutches
    • 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
    • F16D2500/102—Actuator
    • F16D2500/1021—Electrical type
    • F16D2500/1023—Electric motor
    • F16D2500/1024—Electric motor combined with hydraulic actuation
    • 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
    • F16D2500/106—Engine
    • F16D2500/1066—Hybrid
    • 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
    • F16D2500/30—Signal inputs
    • F16D2500/308—Signal inputs from the transmission
    • F16D2500/3081—Signal inputs from the transmission from the input shaft
    • F16D2500/30814—Torque of the input shaft
    • 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
    • F16D2500/30—Signal inputs
    • F16D2500/308—Signal inputs from the transmission
    • F16D2500/3081—Signal inputs from the transmission from the input shaft
    • F16D2500/30816—Speed of the input shaft
    • 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
    • F16D2500/30—Signal inputs
    • F16D2500/308—Signal inputs from the transmission
    • F16D2500/3081—Signal inputs from the transmission from the input shaft
    • F16D2500/30816—Speed of the input shaft
    • F16D2500/30818—Speed change rate of the input shaft
    • 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
    • F16D2500/50—Problem to be solved by the control system
    • F16D2500/502—Relating the clutch
    • F16D2500/50245—Calibration or recalibration of the clutch touch-point
    • F16D2500/50251—During operation
    • F16D2500/5026—Gear engaged
    • 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
    • F16D2500/50—Problem to be solved by the control system
    • F16D2500/502—Relating the clutch
    • F16D2500/50245—Calibration or recalibration of the clutch touch-point
    • F16D2500/50266—Way of detection
    • F16D2500/50272—Gearing speed
    • 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
    • F16D2500/50—Problem to be solved by the control system
    • F16D2500/502—Relating the clutch
    • F16D2500/50245—Calibration or recalibration of the clutch touch-point
    • F16D2500/50266—Way of detection
    • F16D2500/50275—Estimation of the displacement of the clutch touch-point due to the modification of relevant parameters, e.g. temperature, wear
    • 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
    • F16D2500/50—Problem to be solved by the control system
    • F16D2500/502—Relating the clutch
    • F16D2500/50245—Calibration or recalibration of the clutch touch-point
    • F16D2500/50266—Way of detection
    • F16D2500/50281—Transmitted torque

Abstract

A kind of speed changer includes input shaft, transmission shaft, for by secondary and with transmission axis connection the motor of clutch, output shaft, the shift gear for ordinatedly coupling transmission shaft and output shaft torque, of input shaft and transmission axis connection.A kind of method for determining the contact point of clutch includes the following steps：Cut-off clutch, what the torque of revocation shift gear pair and transmission shaft or output shaft coordinated couples, determine the first rotating speed gradient of transmission shaft in the first phase, it is partly closed clutch, determine second rotating speed gradient of the transmission shaft in second stage and determines the contact point of clutch based on the two gradients.Here, motor is controlled during the two stages, by preset torque output to transmission shaft.

Description

Contact point determines
Technical field
The present invention relates to the contact points for determining clutch.Particularly, the present invention relates to one kind in mixed dynamic powertrain Contact point of the clutch at speed changer determines.
Background technology
Hybrid motor vehicle includes internal combustion engine and motor, and the motor can be used in driving motor-driven as an alternative or simultaneously Vehicle.In one embodiment be equipped with double-clutch speed changer, so that internal combustion engine and driven shaft are coupled, the driven shaft with it is motor-driven The driving wheel of vehicle connects.Double-clutch speed changer include two transmission shafts, the transmission shaft by means of associated clutch with it is interior Combustion engine is coupled and can be coupled with driven shaft by means of different shift gear pairs.If internal combustion engine operation, always only One be closed in clutch.By on the transmission shaft that its clutch disconnects by a shift gear pair and relevant transmission shaft It is ordinatedly connected with driven shaft torque, engages shift gear pair；By unclamping the secondary torque between driven shaft of the shift gear The connection of torque cooperation between the connection of cooperation or the secondary and relevant transmission shaft of the shift gear, can detach the shift gear It is secondary.For this purpose, work first shift gear pair is detached, and another shift gear pair is engaged.It is closed by disconnecting The clutch of conjunction is shifted gears and at the same time being closed another clutch.
10 2,010 024 941 A1 of DE show this speed changer.
Clutch can be operated by means respectively of actuator.Actuator more particularly to the transmission pipeline including hydraulic pressure, There is electromechanical transmitter when necessary.In the actuator or the also actuator of other structures form, such as abrasion or temperature Influence can cause the contact point of clutch to move.Contact point corresponds to the following operation of clutch, wherein being passed via clutch Pass preset torque.
In order to determine the contact point of clutch, it is known that different approach.In a variations, turning for transmission shaft is determined Fast gradient is detaching the secondary clutch for disconnecting the transmission shaft immediately later of a shift gear.Then, it is partly closed Clutch and the second rotating speed gradient for determining transmission shaft.Based on the first rotating speed gradient, the drag torque of transmission shaft can be assessed And clutch torque is determined based on the second rotating speed gradient.Contact point can be accurately determined by being so based on the two torques.
Can in the motor vehicle of combination drive, motor torque ordinatedly with the first transmission axis connection.If with the first transmission The shift gear pair of axis connection works, then motor can be used in the acceleration or deceleration of motor vehicle.
Certainly, the contact point determination of first clutch is difficult, because the moment of inertia of motor changes turning for transmission shaft Fast gradient.Motor plays rotating energy memory, enabling reduces the two rotating speed gradients.Thus it is difficult to：Foot Enough it is accurately determined gradient.One in gradient can be so flat so that needing the time of measuring improved to observe the first transmission The rotating speed of axis.Contact point on first clutch is determined to be time consumption so that prevents shift rapidly.
Invention content
Therefore, the present invention is based on following purposes：A kind of method and a kind of equipment are provided, to determine that clutch exists with improvement On transmission shaft with the contact point of motor.
Speed changer include input shaft, transmission shaft, for by input shaft with transmission axis connection clutch, output shaft, be used for Secondary and with transmission axis connection the motor of the shift gear that transmission shaft and output shaft torque, are ordinatedly coupled.For determining clutch The method of contact point include the following steps：Cut-off clutch, cancels shift gear pair and the torque of transmission shaft or output shaft is matched That closes couples, and determines the first rotating speed gradient of transmission shaft in the first phase, is partly closed clutch, determines transmission shaft the The second rotating speed gradient in two-stage and the contact point that clutch is determined based on the two gradients.Here, in the two phases in stage Between control motor, by preset torque output to transmission shaft.
It is therefore feasible that：The contact point for determining clutch, without being equipped with mechanical equipment, as between motor and transmission shaft Another clutch.The processing mode also can be used in determining other parameters on the first transmission shaft, the moment of inertia of motor It is incorporated in other parameters.
In one preferred embodiment, speed changer further includes：Another transmission shaft is used for input shaft and another transmission Another clutch of axis connection and another shift gear pair for ordinatedly coupling another transmission shaft and output shaft torque,. This, another clutch is closed and another shift gear pair and transmission shaft and output shaft torque, ordinatedly coupling during the above method Connection.
In other words, this method is preferably able to execute on the double-clutch speed changer of the motor with flanged joint.Principle On, it can be considered that two different variations for controlling motor.
In the first variations, preset torque corresponds to the moment of inertia of motor.Thus, it is possible to essentially compensate for electricity The effect of the moment of inertia of machine so that the determination method of the contact point for determining clutch need not be changed.This is realized as an alternative With and without the modular structure of the speed changer of motor, without changing the determination method for contact point.Motor is used to Property torque can be related to the rotating speed of transmission shaft.This can consider when controlling motor, so as to improved accuracy compensation motor Moment of inertia.
In the second variations, absolute value of the preset torque during the two stages is constant, wherein contacting It puts and is additionally determined based on preset torque.
Thereby, it is possible to the control of motor is simpler to design.The torque applied by motor must then be contacted determining Symbol and absolute value are considered when point.The information which kind of torque motor applies can be used for by being passed to for the control device of motor Determine the control device of contact point.Thus the moment of inertia together with motor of axis is considered when determining contact point.
In the two variations, if output shaft accelerates during the method, preset torque is first It is negative during stage, to make transmission shaft slow down, and is positive in second stage, to make transmission shaft accelerate.If example If motor vehicle includes the powertrain for having double-clutch speed changer, then can be carried out during the boost phase of motor vehicle defeated The acceleration of shaft, wherein torque are transmitted via another clutch, another transmission shaft and another shift gear pair.Pass through the two Sign modification between stage can ensure：The two rotating speed gradients can determine more quickly or with improved precision.
In above-mentioned variations, if output shaft slows down during the method, preset torque is at the two It is negative during stage, to make transmission shaft slow down.If there is double-clutch speed changer as described above, example of slowing down As can be carried out by means of the torque of secondary, another transmission shaft and another clutch via another shift gear again.
However especially when there is no dual clutch speed changer, the acceleration or deceleration of output shaft also can in the case that the two Enough caused by other effects.For example, described motor vehicle can be travelled or be slided on ramp.
Speed changer according to the present invention include input shaft, transmission shaft, for by input shaft with transmission axis connection clutch, Output shaft, the shift gear for ordinatedly coupling transmission shaft and output shaft torque, are secondary and are driven the motor and use of axis connection In the control device by means of controlling speed changer according to the above method.
Description of the drawings
Now, the present invention is described in more detail with reference to appended attached drawing, wherein
Fig. 1 shows the section of the powertrain for motor vehicle；
Fig. 2 shows the rotating speed when changing bottom gear and torque chart and
Fig. 3 shows rotating speed and torque chart when upshifting.
Specific implementation mode
Fig. 1 shows the section of the powertrain 100 particularly for motor vehicle.Powertrain 100 include for it is interior The input shaft 105 and output shaft 115 that combustion engine 110 connects, connect particularly for the driving wheel (not shown) with motor vehicle.By First transmission shaft 125 is coupled with input shaft 105 in first clutch 120 and is passed second by means of second clutch 130 Moving axis 135 is coupled with input shaft 105.Motor 140 is rigidly connect with the first transmission shaft 125.
In order to couple transmission shaft 125,135 and output shaft 115 equipped with the first gear gear pair 145, the second shift gear Pair 150 and third gear gear pair 155.Here, the first gear gear pair 145 and third gear gear pair 155 and first are driven Axis 125 is associated and the second gear gear pair 150 is associated with second driving shaft 135.The association be it is pure exemplary and More or fewer shift gear pairs 145 to 155 can be equipped with.Each shift gear pair 145 to 155 can be engaged and be divided From.In engagement, the connection that the torque with associated transmission shaft 125,135 and output shaft 115 coordinates is established, and in separation Unclamp the connection of the torque cooperation with associated transmission shaft 125,135 or with output shaft 115 or both.It is associated from During clutch 120,130 disconnects, the engagement and separation of shift gear pair 145 to 155 are carried out.Do not limiting general situation Under, below based on following content：If associated clutch 120,130 is closed, in order to realize output shaft 115 On identical rotating speed, by input shaft 105 high rotating speed with engagement the first gear 145 connect, on input shaft 105 Deng rotating speed connect with the second gear 150 of engagement and connect rotating speed low on input shaft 105 and the third gear 155 of engagement It connects.Therefore it can also refer to the first gear 145, the second gear 150 and third gear 155 herein.
Control device 160 structure for control powertrain 100 a part, particularly for control speed changer 165.Become Fast device 165 includes at least one in input shaft 105, first clutch 120, the first transmission shaft 125, shift gear pair 145,155 A and output shaft 115.Preferably, speed changer 165 is double-clutch speed changer, and the double-clutch speed changer is additionally as described above As include second clutch 130, second driving shaft 135 and the second gear gear pair 150.Control device 160 with for true The device connection of the rotating speed of fixed first transmission shaft 125.Whether engaging or detach gear 145,155 can be by means of other sensing Device is determining or is controlled by means of corresponding actuator.It can determine the disconnection degree of first clutch 120 in the corresponding way Or the disconnection degree of first clutch 120 is controlled by control device 160.It is preferred that being again provided with for second driving shaft 135, the corresponding sensor or actuator of the second gear gear pair 150 and second clutch 130.In another embodiment, Control device 160 can also be built for controlling the torque for passing through motor 140 and exporting.In this regard, control device 160 can be directly It controls the torque of motor 140 or is connect with the control device of the torque for motor 140.
Rotating speed and a torque chart 200 when upshifting Fig. 2 shows speed changer 165 in Fig. 1.Here, based on it is double from Close the described variations of speed changer.The time is additionally drawn in the horizontal direction.Rotating speed is drawn in the vertical direction (N), operational stroke (s), torque (M) and gear (G).Chart 200 is shown during the rotating speed for reducing output shaft 115, first From the switching of 155 to the first gear 145 of third gear and the connecing during this period that is used for first clutch 120 on transmission shaft 125 Contact determines.More particularly to be determined by the braking moment of internal combustion engine 110, the braking moment is borrowed for the braking of output shaft 115 Help second clutch 130, second driving shaft 135 and the second gear 150 to transmit.
First curve 205 is related to the rotating speed of the first transmission shaft 125,210 second driving shaft 135 shown in dotted line of the second curve Rotating speed.Third curve 215 shows 145,155 and the four curve 220 of gear of the engagement on the first transmission shaft 125 with dotted line The gear of engagement on second driving shaft 135 is shown.The gear of engagement is 0 expression：There is no shift gear pair 145 to 155 and phase The transmission shaft 125 answered, 135 torques ordinatedly connect.The state also referred to as dallies.5th curve 225 shows first clutch 120 operational degree.Shown numerical value is higher, and first clutch 120 is closed bigger and then via first clutch 120 Transferable torque is higher.
First clutch 120 is disconnected during first step 240.Third gear gear pair 155 is subsequently isolated so that gear Gear pair 145,155 is not connect with the first transmission shaft 125 with transmitting torque；First transmission shaft 125 is in idle running.Subsequent In step 245, transmission shaft 125 is detached from and is synchronized.When fully cancel third gear gear pair 155 and the first transmission shaft 125 it Between torque cooperation when, the first transmission shaft 125 just start as understood on the first curve 205 freely deceleration stop Only.After the preset lime or when rotating speed reduces preset value or is reduced to preset degree, the first transmission shaft 125 is determined The gradient of rotating speed.Step 250 is also referred to as the first stage.
Then, also referred to as the step 255 of second stage in as can be obtained from the 5th curve 225 partly Operate first clutch 120.Thus the rotating speed of the first transmission shaft 125 is improved to the level of the rotating speed of second driving shaft 135.Such as The rotating speed of fruit transmission shaft 125,135 is mutually matched, then it is determined that the second gradient, the gradient indicates that step 225 period first passes The variation of the rotating speed of moving axis 125.It can determine the contact point of first clutch 120 subsequently, based on the gradient of the two determinations.
Then recall the operation of first clutch 120 again in step 260 so that first clutch 120 detaches.With Afterwards, the first gear 145 is engaged as being shown third curve 215.During engaging the first gear 145, the first transmission shaft is improved 125 rotating speed so that the first gear 145 can be engaged gently.The process is referred to as synchronizing.It then, can in step 265 It is closed first clutch 120, and disconnects second clutch 130.Gear in the line of force in powertrain 100 is herein from Two gears 150 change to the first gear 145.
It is proposed to make the gradient of the first curve 205 be kept as fully big during step 250 and 255：Control electricity Machine 140 so as to step 250 and 255 during with preset torque load the first transmission shaft 125.Curve 230 and 235 shows difference Variations.
According to the first variations, according to the 6th curve 230, negative by output during motor 140 in the first stage 250 Torque and the positive torque of output during second stage 255.Here, torque corresponds respectively to the moment of inertia of motor 140.It is excellent Selection of land continuously builds negative torque during step 245.In this embodiment, big in step 250 and 255 period gradients To like there is no motors 140.It need not adjust for determining gradient or determining based on gradient the contact point of first clutch 120 Equipment or method.
Constant negative torque is exported to the during the step 235 according to the 7th curve 235 according to the second variations One transmission shaft 125 and constant positive torque is exported to the first transmission shaft 125 during the step 255.Preferably, negative turn Square is exported during step 245.In this variant form, the unit being made of the first transmission shaft 125 and motor 140 Moment of inertia reduces constant value, and the numerical value corresponds to the torque of motor 140.When based on first or second gradient into advance one Step determines, considering the first transmission shaft 125, motor 140 entire when being especially to determine the contact point of first clutch 120 Moment of inertia and the torque applied by it.
Fig. 3 shows the view corresponding to Fig. 2 in opposite shift process.Using the reference numeral and axis mark of Fig. 2 Note.Different from the view of Fig. 2, the boost phase of output shaft 115 is based on chart 300.It is engaged in the second gear gear pair 150 On second driving shaft 135 during, on the first transmission shaft 125 in step 240 the first gear gear pair 145 separation and Third gear gear pair 155 engages in step 265.In step 250 --- in the first stage --- period, the first transmission shaft 125 Slow down and stops and can determine the first gradient of its rotating speed.--- second stage --- period in step 255, by partly First clutch 120 is closed by the rotating speed of the first transmission shaft 125 with than being only reduced to it to reach by slowly stopping stronger degree To the rotating speed of second driving shaft 135.The second gradient is determined in this case.
It is corresponding with the 6th curve 230 in Fig. 2 and be related to the curve 330 of above-mentioned first variations and show to pass through electricity Machine 140 is exported to the torque of the first transmission shaft 125, and the torque corresponds to the moment of inertia of motor 140.In step 250 and 255 Period, the torque of output are always negative, but absolute value is different in the two stages.Preferably, during step 245 Continuously build negative torque.
Corresponding with the curve 235 in Fig. 2 and be related in the curve 335 of above-mentioned second variations, pass through motor 140 provide constant negative torque.Preferably, the negative torque of structure during step 245.
The determination of contact point in the two variations in the case where output shaft 115 accelerates with according to above for The description of deceleration carries out like that.
Reference numerals list
100 powertrain
105 input shafts
110 internal combustion engines
115 output shafts
120 first clutches
125 first transmission shafts
130 second clutches
135 second driving shafts
140 motors
145 first gear gear pairs
150 second gear gear pairs
155 third gear gear pairs
160 control devices
165 speed changers
200 charts
205 first curves：The rotating speed of first transmission shaft 125
210 second curves：The rotating speed of second driving shaft 135
215 third curves：The gear of the engagement of first transmission shaft 125
220 the 4th curves：The gear of the engagement of second driving shaft 135
225 the 5th curves：Operate first clutch 120
230 the 6th curves：First preset torque (the first variations)
235 the 7th curves：Second preset torque (the second variations)
240 disconnect first clutch, detach third gear
245 are detached from synchronization
250 first stage：Determine first gradient
255 second stage：Determine the second gradient
260 the first gears of engagement
265 are closed first clutch
300 charts
330 correspond to the 6th curve (the first variations)
335 correspond to the 7th curve (the second variations)

Claims (9)

1. method (200,300) of the one kind for determining contact point of the clutch (120) on speed changer (165), wherein described Speed changer (165) includes as follows：
Input shaft (105)；
Transmission shaft (125)；
Clutch (120) for the input shaft (105) to be connect with the transmission shaft (125)；
Output shaft (115)；
Shift gear for ordinatedly coupling the transmission shaft (125) and the output shaft (115) torque it is secondary (145, 155) and
Motor (140), the motor are connect with the transmission shaft (125),
Wherein the method (200,300) includes the following steps：
Disconnect (240) described clutch (120)；
Cancel the torque of (240) described shift gear secondary (145,155) and the transmission shaft (125) or the output shaft (115) Cooperation couples；
Determine the first rotating speed gradient of (250) described transmission shaft (125) in the first phase；
Partly it is closed (255) described clutch (120)；
Determine second rotating speed gradient of (255) the described transmission shaft (125) in second stage, and
The contact point of (255) described clutch (120) is determined based on the two gradients,
It is characterized in that,
The motor (140) is controlled during two stages (250,255) so that give preset torque output to the transmission shaft (125)。
2. according to the method for claim 1 (200,300), wherein the preset torque corresponds to the motor (140) Moment of inertia.
3. according to the method for claim 1 (200,300), wherein the preset torque described two stages (250, 255) absolute value during is constant and additionally determines (255) described contact point based on the preset torque.
4. according to the method for claim 1 (200,300), wherein the speed changer (165) further includes as follows：
Another transmission shaft (135)；
Another clutch (130) for the input shaft (105) to be connect with another transmission shaft (135), and
Another shift gear pair for ordinatedly coupling another transmission shaft (135) and the output shaft (115) torque (150)；
And wherein during the method (200,300)
It is closed another clutch (130), and
Another shift gear secondary (150) and another transmission shaft (135) and the output shaft (115) torque are ordinatedly It couples.
5. according to the method for claim 4 (200,300), wherein the preset torque corresponds to the motor (140) Moment of inertia.
6. according to the method for claim 4 (200,300), wherein the preset torque described two stages (250, 255) absolute value during is constant and additionally determines (255) described contact point based on the preset torque.
7. the method (200,300) according to any one of claim 1-6, wherein during the method (200,300) Make the output shaft (115) acceleration and the preset torque is negative during the first stage (250), to make Transmission shaft (125) deceleration is stated, and is positive in the second stage (255), to make the transmission shaft (125) accelerate.
8. the method (200,300) according to any one of claim 1-6, wherein during the method (200,300) Make the output shaft (115) slow down and the preset torque is during described two stages (250,255) be it is negative, so as to The transmission shaft (125) is set to slow down.
9. a kind of speed changer (165), including following element：
Input shaft (105)；
Transmission shaft (125)；
Clutch (120) for the input shaft (105) to be connect with the transmission shaft (125)；
Output shaft (115)；
Shift gear for ordinatedly coupling the transmission shaft (125) and the output shaft (115) torque it is secondary (145, 155)；
Motor (140), the motor are connect with the transmission shaft (125), and
For controlling the speed changer (165) by means of method according to any one of the preceding claims (200,300) Control device (160).
CN201480065789.7A 2013-12-10 2014-11-18 Contact point determines Active CN105814332B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102013225468 2013-12-10
DE102013225468.7 2013-12-10
PCT/DE2014/200643 WO2015086013A2 (en) 2013-12-10 2014-11-18 Contact point determination

Publications (2)

Publication Number Publication Date
CN105814332A CN105814332A (en) 2016-07-27
CN105814332B true CN105814332B (en) 2018-07-17

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CN108980335B (en) * 2017-06-02 2020-06-26 上海汽车集团股份有限公司 Self-learning triggering method and device for clutch half-joint point and dual-clutch automatic transmission
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DE102019113957A1 (en) * 2019-05-24 2020-11-26 Schaeffler Technologies AG & Co. KG Method for determining a torque transmission property of a clutch with decreasing output speed

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DE112014005608A5 (en) 2016-11-03
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WO2015086013A3 (en) 2016-03-24
WO2015086013A2 (en) 2015-06-18

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