WO2015169304A1 - Kupplungssteuerung mit hystereseberücksichtigung - Google Patents
Kupplungssteuerung mit hystereseberücksichtigung Download PDFInfo
- Publication number
- WO2015169304A1 WO2015169304A1 PCT/DE2015/200252 DE2015200252W WO2015169304A1 WO 2015169304 A1 WO2015169304 A1 WO 2015169304A1 DE 2015200252 W DE2015200252 W DE 2015200252W WO 2015169304 A1 WO2015169304 A1 WO 2015169304A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- master piston
- piston
- hysteresis
- friction clutch
- basis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
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
- F16D48/066—Control of fluid pressure, e.g. using an accumulator
-
- 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
- F16D2500/1026—Hydraulic
-
- 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
- F16D2500/104—Clutch
- F16D2500/10406—Clutch position
- F16D2500/10412—Transmission line of a vehicle
-
- 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
- F16D2500/104—Clutch
- F16D2500/10443—Clutch type
- F16D2500/1045—Friction clutch
-
- 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
- F16D2500/501—Relating the actuator
- F16D2500/5012—Accurate determination of the clutch positions, e.g. treating the signal from the position sensor, or by using two position sensors for determination
-
- 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
- F16D2500/50287—Torque control
-
- 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
- F16D2500/70—Details about the implementation of the control system
- F16D2500/702—Look-up tables
- F16D2500/70205—Clutch actuator
- F16D2500/70235—Displacement
-
- 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
- F16D2500/70—Details about the implementation of the control system
- F16D2500/704—Output parameters from the control unit; Target parameters to be controlled
- F16D2500/70402—Actuator parameters
- F16D2500/7041—Position
-
- 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
- F16D2500/70—Details about the implementation of the control system
- F16D2500/706—Strategy of control
- F16D2500/70668—Signal filtering
-
- 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
- F16D2500/70—Details about the implementation of the control system
- F16D2500/706—Strategy of control
- F16D2500/70673—Statistical calculations
- F16D2500/70684—Statistical calculations using regressions
Definitions
- the present invention relates to clutch control.
- the invention relates to the control of a hydraulic actuation of a clutch, taking into account a hysteresis behavior of the actuator.
- a drive train in a motor vehicle includes a friction clutch, by means of which the transmission of torque in the drive train can be interrupted.
- the friction clutch can be hydraulically actuated.
- an increasing operation leads to a closing of the friction clutch, in a second embodiment to an opening of the friction clutch.
- An elastic element in each case provides a force opposite to the actuation.
- the hydraulic actuator comprises a master cylinder with a master piston and a slave cylinder with a slave piston, wherein the two cylinders are hydraulically coupled together. If the position of the master piston is changed, this has an effect on the slave piston and a torque that can be transmitted via the friction clutch is changed accordingly.
- the operation of the friction clutch follows the position of the master piston based on a transfer function.
- elastic effects and friction in the area of the hydrostatic path can lead to a hysteresis effect, so that the actuation of the friction clutch is not determined solely by the position of the master piston, but also by a preceding actuating direction of the master piston.
- the influence of hysteresis may depend on the absolute position of the master piston.
- the hysteresis effect may be dependent on the friction clutch used.
- DE 10 201 1 01 1 152 A1 relates to a method for controlling such a friction clutch.
- the invention is based on the object of providing an improved technology for controlling a torque which can be transmitted by means of a friction clutch through improved consideration of the problem. provide a hysteresis influence.
- the invention solves this object by means of a method, a computer program product and a device having the features of the independent claims. Subclaims give preferred embodiments again.
- a friction clutch can be actuated by means of a slave piston, which is coupled by means of a hydrostatic path with a master piston.
- An inventive method for controlling a torque transferable via the friction clutch comprises steps of controlling the position of the master piston based on a transfer function between positions of the master piston and the slave piston, the position of the master piston being additionally controlled on the basis of a hysteresis influence, which is determined on the basis of a position of the master piston and a rearward movement direction of one of the pistons.
- the influence of hysteresis is determined on the basis of a plurality of support points which are valid in each case for a predetermined range of positions of the master piston.
- Hysteresis influence can be compensated improved.
- the transmissible via the friction clutch torque can be controlled so accurate. As a result, a ride comfort can be increased.
- the method can be used advantageously on a double clutch, which can be connected upstream of a dual-clutch transmission.
- one or both clutches of the dual clutch may be controlled by the method described to allow a faster, smoother or more accurate transition between engaged gear ratios of the dual clutch transmission.
- each position of the master piston can easily be assigned a clear hysteresis.
- the influence of hysteresis can be determined quickly and inexpensively at any position.
- the hysteresis influence is at a position of
- Encoder piston based on interpolation points of the area associated with the position, and the support point of at least one adjacent area. By interpolating a typical course of the hysteresis influence on the possible positions of the Master piston are well modeled. In this case, a number of predetermined areas may be relatively small. A memory overhead for each of the areas assigned
- Hysteresis influences can be reduced.
- the support points are not equidistant.
- the areas include different-sized positional differences. For example, a narrow area can be chosen where the
- Hysteresis influence strongly changes depending on the position of the master piston.
- a wide range can be selected where the change based on the position is small. This allows a precise modeling of the course of Hystereseeinhnes on the position of the master piston can be achieved without having to store many different Hystereseeinfladore.
- the distances between adjacent support points are dependent on their associated hysteresis influences.
- the distances between the interpolation points and the boundaries of the regions are chosen such that differences between hysteresis influences of adjacent regions are substantially the same.
- the hysteresis influence stored with respect to the support points can also be adapted during the ongoing operation of the friction clutch. For this purpose, a torque actually transmitted via the friction clutch is determined at a position of the master piston, the torque determined on the basis of the position of the master piston and the hysteresis influence is compared with the determined actual torque, and the hysteresis influence at the position of the master piston is adjusted on the basis of the comparison.
- a computer program product comprises program code means for carrying out the described method when the computer program product runs on a processor or is stored on a computer-readable medium.
- An inventive device for controlling a torque, which is transferable via a friction clutch, wherein the friction clutch can be actuated by means of a slave piston which is coupled by means of a hydrostatic path with a master piston comprises an interface to an actuator for controlling the position of the master piston on the Based on a transfer function between positions of the master piston and the slave piston, a control device for providing signals at the interface, wherein the control device is adapted to determine a Hystereseeinhim on the basis of a position of the master piston and a rearward movement direction of the piston and the actuator in To control the dependence of the hysteresis influence.
- the control device is set up to determine the influence of hysteresis on the basis of a plurality of interpolation points which are valid in each case for a predetermined range of positions of the master piston.
- the device can be advantageously used to control a clutch in a drive train of a motor vehicle.
- one or both clutches of a dual clutch of a dual-clutch transmission can be controlled by means of the device.
- Figure 1 is a coupling system for a motor vehicle
- FIG. 2 is a flow chart of a method of controlling the friction clutch of FIG. 1;
- Figure 3 is a characteristic of the coupling system of Figure 1 and
- FIG. 4 shows a profile of hysteresis influences over positions of the master piston on the clutch system of FIG.
- FIG. 1 shows a coupling system 100, in particular for use in a drive train, for example in a motor vehicle.
- the clutch system 100 comprises a friction clutch 105, an actuating device 110, which in the present embodiment is designed to be electrohydraulic, and a control device 12. considerations, it is irrelevant whether a torque that can be transmitted via the friction clutch 105, increases when the operation by means of the actuator 1 10 is increased or decreased.
- the friction clutch 105 may transmit torque between a drive motor and a transmission.
- the friction clutch 105 is part of a dual clutch of a dual clutch transmission.
- the actuator 1 10 is electrically controllable in the illustrated embodiment. If actuation is effected by means of an electrically scanned clutch pedal, this is also referred to as a "clutch by wire" system
- the actuating device 110 includes an electric actuator 15 and a hydrostatic section 120.
- the hydrostatic section 120 comprises a master cylinder 125 with a master piston 130 A position of the master piston 130 is transmitted by means of a fluid 150 from the master cylinder 125 through the connecting line 145 and the slave cylinder 135 to the slave piston 140.
- the slave piston 140 is a slave cylinder 135 having a slave piston 140 and a slave piston 140 provided between the cylinders 125 and 135 is adapted to operate the friction clutch 105.
- the operation of the friction clutch 105, and thus the transmittable via the friction clutch 105 torque can be controlled by a drive of the actuator 1 15, which brings the master piston 130 in a predetermined position.
- the actuator 1 15 can be controlled via a first interface 155 by the control device 1 12.
- the actuation of the actuator 1 15 or the method of the master piston 130 in a predetermined position can be carried out in response to a request that can receive the control device 1 12 via a second interface 160.
- the requirement may in particular relate to a torque which is to be transferable via the friction clutch 105.
- a hysteresis influence between the position of the master piston 130 and the actuation of the friction clutch 105 occurs at a real clutch system 100.
- the hysteresis is substantially the same with respect to a position of the slave piston 140 or a hydraulic pressure of the fluid 150.
- the influence of the hysteresis causes a first degree of actuation to be achieved when the master piston 130 is moved in a first direction up to a predetermined position, and a second degree of actuation, which differs from the first level of actuation, when the master piston 130 is moved in the opposite direction to the same position.
- FIG. 2 shows a flow chart of a method 200 for controlling the friction clutch 105 from FIG. 1.
- a request for a torque to be transmitted via the friction clutch 105 can be received.
- a required operation of the friction clutch 105 can be determined in a step 210.
- a desired position of the master piston 130 is determined. In particular, the position may be determined based on a transfer function that associates positions of the master piston 130 and the slave piston 140 with each other.
- a region 170 is determined in which the previously determined position of the master piston 130 falls.
- a hysteresis influence is determined, which is assigned to the previously determined area.
- the hysteresis influence can be stored in particular in the memory 165.
- the determination of the influence of hysteresis takes place directly on the basis of the assigned region of the position of the master piston 130. In this case, it is advantageous to provide a relatively large number of regions 170 for a good resolution.
- the hysteresis influence is interpolated at the position of the master piston 130.
- the hysteresis influences of the assigned area 170 and of at least one adjacent area 170 are used as interpolation nodes.
- the interpolation may be, for example, linear, quadratic, cubic, generally polynomial or exponential.
- a step 235 the previously determined position of the master piston 130 is adjusted on the basis of the hysteresis influence. Subsequently, in one step 240 of the actuator 1 15 are driven to bring the master piston 130 in the predetermined position.
- the method 200 may be extended such that stored hysteresis influences during operation of the clutch system 100 can be continuously adjusted.
- a torque actually transmitted via the friction clutch 105 can be determined. This can be done, for example, on the basis of a sensor value, a model calculation or a method which can be carried out in particular on the inactive friction clutch 105 of a double clutch.
- the operation of the friction clutch 105 may be determined to a predetermined torque.
- a difference between the position of the master piston 130 determinable on the basis of the steps 245 and 250 and the position determinable by means of the steps 205 to 240 can be calculated.
- a hysteresis influence which is assigned to a region 170 in which the position of the master piston 130 is or should lie, can be adjusted.
- the method 200 may be cycled.
- steps 205 to 240 can be cycled independently of steps 245 to 255, respectively.
- FIG. 3 shows a diagram 300 with a characteristic curve 305 at the coupling system 100 of FIG. 1.
- a position of the master piston 130 is plotted.
- a hydraulic pressure of the fluid 150 in the hydrostatic Stecke 120 is applied.
- the hydraulic pressure corresponds qualitatively also to a position of the slave piston 140 or an actuation of the friction clutch 105.
- the characteristic curve 305 is a hysteresis loop, which results on the basis of a transmission function 302 and a hysteresis influence.
- a direct relationship between a position of the master piston 130 and the hydraulic pressure or the position of the slave piston 140 may be present. However, due to elasticities, tolerances and friction, the relationship is dependent on a direction 310 in which the master piston 130 is moved.
- the vertical distance between an upper and a lower portion of the hysteresis loop 305 is referred to as the hysteresis influence 315, wherein the amount of the hysteresis influence 315 at different positions of the master piston 130 is different.
- regions 170 over the possible positions of the master piston 130, to each of which a hysteresis influence 315 is assigned.
- the regions 170 need not be the same size, but may be small in particular at such locations, if the hysteresis influence 315 changes greatly over the position of the master piston 130, and be correspondingly large when the
- Hysteresis influence 315 changes only slightly over the position of the master piston 130.
- FIG. 4 shows a diagram 400 with a profile 405 of hysteresis influences 315 corresponding to FIG. 3.
- a position of the master piston 130 is plotted analogously to the representation of FIG. 3 and in the vertical direction the amount of an associated hysteresis influence.
- Each area 170 is a predetermined one
- Hystereseeinl 315 each at a support point 410, offered.
- Hystereseeinflüssen 315 to determine an interpolation or extrapolation via the nodes of the known hysteresis 315 can take place.
- the result of this interpolation is shown as curve 405.
- a linear, polynomial or other interpolation can be used.
- all existing hysteresis influences 315 are used for the interpolation.
- the interpolation occurs only between adjacent hysteresis influences 315 or over a predetermined number of hysteresis influences 315 around a region 170 in which the position of the master piston 130 lies.
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020167031008A KR102427703B1 (ko) | 2014-05-09 | 2015-04-09 | 히스테리시스를 고려하는 클러치 제어 |
| CN201580023516.0A CN106255839B (zh) | 2014-05-09 | 2015-04-09 | 具有迟滞考虑的离合器控制 |
| DE112015002192.2T DE112015002192B4 (de) | 2014-05-09 | 2015-04-09 | Kupplungssteuerung mit Hystereseberücksichtigung |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014208787 | 2014-05-09 | ||
| DE102014208787.2 | 2014-05-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015169304A1 true WO2015169304A1 (de) | 2015-11-12 |
Family
ID=53276685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2015/200252 Ceased WO2015169304A1 (de) | 2014-05-09 | 2015-04-09 | Kupplungssteuerung mit hystereseberücksichtigung |
Country Status (4)
| Country | Link |
|---|---|
| KR (1) | KR102427703B1 (de) |
| CN (1) | CN106255839B (de) |
| DE (1) | DE112015002192B4 (de) |
| WO (1) | WO2015169304A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110291302B (zh) * | 2017-01-30 | 2021-08-17 | 利滕斯汽车合伙公司 | 离合式真空泵系统 |
| DE102017111966A1 (de) * | 2017-05-31 | 2018-12-06 | Schaeffler Technologies AG & Co. KG | Verfahren zur Berechnung einer Sollposition eines Kupplungsaktors bei einer Steuerung einer Kupplung |
| CN112511052B (zh) * | 2019-08-26 | 2022-03-11 | 上海汽车集团股份有限公司 | 一种转矩容量的估算方法及系统 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10236116A1 (de) * | 2002-08-07 | 2004-02-19 | Zf Friedrichshafen Ag | Mobiles Fahrzeug mit einem schaltbaren Getriebe |
| EP1418083A2 (de) * | 2002-11-11 | 2004-05-12 | LuK Lamellen und Kupplungsbau Beteiligungs KG | Verfahren, Vorrichtung und deren Verwendung zum Betrieb eines Kraftfahrzeuges |
| DE102006011350A1 (de) * | 2006-03-11 | 2007-09-13 | Zf Friedrichshafen Ag | Kompensation einer Hysterese eines elektronischen Druckstellers |
| DE102011011152A1 (de) | 2010-03-04 | 2011-09-08 | Schaeffler Technologies Gmbh & Co. Kg | Verfahren zur Steuerung einer Reibungskupplung und Vorrichtung hierzu |
| DE102012204940A1 (de) * | 2011-04-15 | 2012-10-18 | Schaeffler Technologies AG & Co. KG | Verfahren zur Adaption von Parametern einer Kupplung |
| DE102013201261A1 (de) | 2012-02-22 | 2013-08-22 | Schaeffler Technologies AG & Co. KG | Verfahren zur Steuerung einer Reibungskupplung |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10292580D2 (de) * | 2001-06-13 | 2004-08-26 | Luk Lamellen & Kupplungsbau | Kupplungsbetätigungsvorrichtung sowie Verfahren zum Ermitteln von Kupplungsparametern |
| DE102004029558A1 (de) * | 2003-06-23 | 2005-01-13 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Verfahren und Vorrichtung zur Steuerung einer Kupplung |
| DE102008041353A1 (de) * | 2008-08-19 | 2010-02-25 | Robert Bosch Gmbh | Verfahren zur Kompensation von Volumenänderungen eines Hydraulikfluids in einer hydraulischen Betätigungseinrichtung zur Betätigung einer Kupplung, sowie hydraulische Betätigungseinrichtung |
| DE102013220324A1 (de) * | 2012-10-31 | 2014-04-30 | Schaeffler Technologies Gmbh & Co. Kg | Verfahren zur Betätigung einer Reibungskupplung |
-
2015
- 2015-04-09 KR KR1020167031008A patent/KR102427703B1/ko active Active
- 2015-04-09 WO PCT/DE2015/200252 patent/WO2015169304A1/de not_active Ceased
- 2015-04-09 CN CN201580023516.0A patent/CN106255839B/zh active Active
- 2015-04-09 DE DE112015002192.2T patent/DE112015002192B4/de active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10236116A1 (de) * | 2002-08-07 | 2004-02-19 | Zf Friedrichshafen Ag | Mobiles Fahrzeug mit einem schaltbaren Getriebe |
| EP1418083A2 (de) * | 2002-11-11 | 2004-05-12 | LuK Lamellen und Kupplungsbau Beteiligungs KG | Verfahren, Vorrichtung und deren Verwendung zum Betrieb eines Kraftfahrzeuges |
| DE102006011350A1 (de) * | 2006-03-11 | 2007-09-13 | Zf Friedrichshafen Ag | Kompensation einer Hysterese eines elektronischen Druckstellers |
| DE102011011152A1 (de) | 2010-03-04 | 2011-09-08 | Schaeffler Technologies Gmbh & Co. Kg | Verfahren zur Steuerung einer Reibungskupplung und Vorrichtung hierzu |
| DE102012204940A1 (de) * | 2011-04-15 | 2012-10-18 | Schaeffler Technologies AG & Co. KG | Verfahren zur Adaption von Parametern einer Kupplung |
| DE102013201261A1 (de) | 2012-02-22 | 2013-08-22 | Schaeffler Technologies AG & Co. KG | Verfahren zur Steuerung einer Reibungskupplung |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112015002192A5 (de) | 2017-01-19 |
| DE112015002192B4 (de) | 2024-03-21 |
| CN106255839A (zh) | 2016-12-21 |
| KR102427703B1 (ko) | 2022-08-01 |
| KR20170005412A (ko) | 2017-01-13 |
| CN106255839B (zh) | 2019-02-22 |
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