GB2513564A - Transmission Torque Compensation Method and System - Google Patents

Transmission Torque Compensation Method and System Download PDF

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Publication number
GB2513564A
GB2513564A GB201307656A GB201307656A GB2513564A GB 2513564 A GB2513564 A GB 2513564A GB 201307656 A GB201307656 A GB 201307656A GB 201307656 A GB201307656 A GB 201307656A GB 2513564 A GB2513564 A GB 2513564A
Authority
GB
United Kingdom
Prior art keywords
engine
sensor
clutch
transmission
oil temperature
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.)
Granted
Application number
GB201307656A
Other versions
GB201307656D0 (en
GB2513564B (en
Inventor
Marcus Harvey
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ford Global Technologies LLC
Original Assignee
Ford Global Technologies LLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ford Global Technologies LLC filed Critical Ford Global Technologies LLC
Priority to GB1307656.7A priority Critical patent/GB2513564B/en
Publication of GB201307656D0 publication Critical patent/GB201307656D0/en
Priority to DE201410105284 priority patent/DE102014105284A1/en
Priority to RU2014116609/11U priority patent/RU147021U1/en
Priority to CN201410177574.6A priority patent/CN104121106B/en
Publication of GB2513564A publication Critical patent/GB2513564A/en
Application granted granted Critical
Publication of GB2513564B publication Critical patent/GB2513564B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/08—Introducing corrections for particular operating conditions for idling
    • F02D41/083—Introducing corrections for particular operating conditions for idling taking into account engine load variation, e.g. air-conditionning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
    • B60W30/18—Propelling the vehicle
    • B60W30/192—Mitigating problems related to power-up or power-down of the driveline, e.g. start-up of a cold engine
    • B60W30/194—Mitigating problems related to power-up or power-down of the driveline, e.g. start-up of a cold engine related to low temperature conditions, e.g. high viscosity of hydraulic fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/021—Introducing corrections for particular conditions exterior to the engine
    • F02D41/0215—Introducing corrections for particular conditions exterior to the engine in relation with elements of the transmission
    • F02D41/022—Introducing corrections for particular conditions exterior to the engine in relation with elements of the transmission in relation with the clutch status
    • 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
    • F16D25/00—Fluid-actuated clutches
    • F16D25/12—Details not specific to one of the before-mentioned types
    • F16D25/123—Details not specific to one of the before-mentioned types in view of cooling and lubrication
    • 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
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0412—Cooling or heating; Control of temperature
    • F16H57/0413—Controlled cooling or heating of lubricant; Temperature control therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2200/00—Input parameters for engine control
    • F02D2200/02—Input parameters for engine control the parameters being related to the engine
    • F02D2200/023—Temperature of lubricating oil or working fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/04—Introducing corrections for particular operating conditions
    • F02D41/08—Introducing corrections for particular operating conditions for idling
    • F02D41/086—Introducing corrections for particular operating conditions for idling taking into account the temperature of the engine

Abstract

A method of compensating for transmission drag torque during engine idle, the method comprising receiving clutch position information 10, receiving transmission oil temperature information 20 and calculating transmission drag torque based on the clutch position information and the transmission oil temperature information 30. The method adjusts the calculated torque to include the transmission drag torque 40 and provides a signal to an engine to increase the engine torque output so as to maintain an engine idle speed as the clutch position changes 50. Reference is also made to a system comprising an electronic control unit (110, fig 3), a clutch position sensor (120), associated with a clutch pedal, and a sensor for determining transmission oil temperature (130) based on coolant temperature. The electronic control adjusts the calculated torque load on the engine to include the transmission drag torque and provides a signal to the engine to increase the engine torque output so as to maintain an engine idle speed as the clutch position changes.

Description

TRANSMISSION TOROUE COMPENSATION METHOD AND SYSTEM
The present disclosure relates a transmission torque compensation method and system.
Background
It is often recommended that a driver of a vehicle declutches during start of an engine with a manual transmission, for example when starting the engine in cold conditions.
Indeed, in some vchicles it is not possible to start the engine unless the clutch pedal is depressed.. However, when the clutch is subsequently released with the transmission in a neutral state, it can result in a significant reduction in the engine idle speed, i.e. the rotational speed of an engine output shaft before the transmission is engaged, especially when the transmission oil is very cold.
1 5 Such a reduction in engine idle speed may be perceived by the driver and in certain circumstances may result in stall of the engine. The reduction in engine speed is therefore undesirable.
The present disclosure seeks to address this issue.
Statements of Invention
According to a first aspect of the present disclosure there is provided a method of compensating for transmission drag torque during engine idle, the method comprising: receiving clutch position information; receiving transmission oil temperature information; calculating transmission drag torque based on the clutch position information and the transmission oil temperature information; adjusting a calculated torque load acting on an engine to include the transmission drag torque; and providing a signal to the engine to increase the engine torque output so as to substantially maintain an engine idle speed as the clutch position changes.
The method may further comprise substantially maintaining the engine idle speed as the clutch is released with the transmission in a neutral position. The engine idle speed may be substantially maintained during release of the clutch. In other words, the engine idle speed may be maintained in real time.
The method may thither comprise providing a sensor associated with the clutch; and sensing the clutch position with the sensor. The method may further comprise providing a sensor associated with a clutch pedal; and sensing the clutch pedal position with the sensor.
The method may further comprise providing a sensor to determine the transmission oil temperature. The sensor may be configured to measure the transmission oil temperature. The sensor may be configured to measure a coolant temperature, e.g. a coolant for cooling the engine and/or the transmission oil. The method may further comprise determining the transmission oil temperature based on the coolant temperature.
According to a second aspect of the present disclosure there is provided a system for compensating transmission drag torque during engine idle, the system comprising: an electronic control unit; a clutch position sensor; and a means for determining transmission oil temperature, wherein the electronic control unit is configured to calculate transmission drag torque based on clutch position information provided by the clutch position sensor and transmission oil temperature information provided by the means for determining transmission oil temperature; the electronic control unit being further configured to adjust a calculated torque load on the engine to include the transmission drag torque; and provide a signal to an enne to increase the engine toique output so as to maintain an engine idle speed as the clutch position changes.
The electronic control unit may be further configured to substantially maintain the engine idle speed as the clutch is released with the transmission in a neutral position.
The clutch position sensor may be a sensor associated with a clutch. For example, the sensor may detect the position of clutch plates to determine the degree to which the clutch has been engaged. By way of a further example, the clutch position sensor may be associated with a hydraulic cylinder operatively connected to the clutch itself.
Alternatively or additionally, the clutch position sensor may be a sensor associated with a clutch pedal. For example, the sensor may detect the position of the clutch pedal to determine the degree to which the clutch has been engaged. Byway of a ftirther example, the clutch position sensor may be associated with a hydraulic cylinder operatively connected to the clutch pedal.
The means for determining transmission oil temperature may comprise a sensor. The sensor may be configured to measure transmission oil temperature. The sensor maybe configured to measure a coolant temperature, e.g. a coolant for cooling the engine and/or the transniission oil. The means for determining transmission oil temperature may frirther comprise a means for determining the transmission oil temperature based on the coolant temperature.
An engine and/or vehicle may comprise the above-mentioned system. The vehicle may 1 5 comprise the above-mentioned engine and may additionally comprise a further engine.
For example, the vehicle may be a hybrid vehicle with two different types of engine, e.g. an internal combustion engine and an electric motor.
Brief Description of the Drawings
For a. better understanding of the present disclosure, and to show more clearly how it may be carried into effect, reference will now be made, by way of example, to the accompanying drawings, in which: Figure 1 shows a flow chart depicting a method of compensating for transmission drag torque during engine idle according to an embodiment of the present disclosure; Figure 2 shows a flow chart depicting the powertrain torque loss calculation according
to the present disclosure; and
Figure 3 shows a schematic of a system for compensating for transmission drag torque during engine idle according to the embodiment of the present disclosure.
Detailed Description
With reference to Figure 1, the present disclosure relates to a method of compensating for transmission drag torque during engine idle. Tn particular, the present disclosure relates to a situation in which a clutch is moved from a disengaged position to an engaged position with a transmission, e.g. gearbox, in neutral. The transmission drag torque depends, at least partially, on the clutch position and the temperature of the transmission oil. For example, if the oil is cold, the drag will be higher than if the oil is hot due to the increased viscosity of the oil at lower temperatures. Accordingly, the method comprises: a step 10 of receiving clutch position information; a step 20 of receiving transmission oil temperature information; and a step 30 of calculating transmission drag torque based on the clutch position information and the transmission oil temperature information. As will be described in more detail below, the method further comprises a step 40 of adjusting a calculated torque load acting on an engine to include the transmission drag torque; and a step 50 of providing a signal to the engine to increase the engine torque output so as to substantially maintain an engine idle speed as the clutch position changes.
With reference to Figure 2 the method comprises calculating a transmission drag torque 65 based on the clutch position 62 and transmission oil temperature 63, The transmission drag torque 65 may be determined by referring to a pre-determined characteristic. e.g. in the form of a look-up table 64, which comprises transmission drag torque values as a function of clutch position and transmission oil temperature. The transmission drag torque values may be obtained experimentally. The characteristic, e.g. look up table, may be stored in memory. The stored characteristic may comprise discrete points and the method may comprise interpolating between these points to obtain the transmission drag torque 65 for particular clutch position and transmission oil temperature values. The clutch position 62 may be expressed as a percentage, e.g. with 100% corresponding to a filly engaged clutch and 0% corresponding to a filly disengaged clutch.
The calculated transmission drag torque 65 may then be added to a calculated engine torque loss 61 to provide a total powertrain torque loss 66. The engine torque loss may include other torque losses acting on the engine, for example due to an alternator, air conditioning pump, water pump, oil pump or any other device associated with the engine. The calculated engine torque loss 61 may be obtained by another method and system not described here. The total powertrain torque loss 66 may then be used by an electronic control unit associated with the engine to schedule an output torque for the engine that will match the total powertrain torque loss 66 and thereby provide the desired engine idle speed.
The above-mentioned method may be carried whilst the clutch is being released with the transmission in a neutral position. As such, the cnginc idle speed may be maintained as the clutch is released. In other words, the engine idle speed may be maintained in real time and a reduction in the engine idle speed is avoided.
With reference to Figure 3, a system 100 for compensating transmission drag torque during engine idle comprises: an electronic control unit 110, e.g. a Powertrain Control Module (PCM); a clutch position sensor 120; and a means for determining transmission oil temperature 130. The electronic control unit 110 is configured to calculate transmission drag torque based on clutch position information provided by the clutch position sensor 120 and transmission oil temperature information provided by the means for determining transmission oil temperature 130.
The electronic control unit 110 is further configured to adjust a calculated torque load on the engine to include the transmission drag torque. In other words, the electronic control unit 110 may he configured to carry out the methods described in respect of Figures 1 and/or 2. The electronic control unit 110 may provide a signal to the engine to increase the engine torque output so as to maintain an engine idle speed as the clutch position changes. The electronic control unit 110 may be further configured to substantially maintain the engine idle speed as the clutch is released with the transmission in a neutral position.
The clutch position sensor 120 may be a sensor associated with a clutch. For example, the sensor 120 may detect the position of clutch plates to detennine the degree to which the clutch has been engaged. Alternatively or additionally, the clutch position sensor maybe a sensor associated with a clutch pedal. For example, the sensor 120 may detect the position. of the clutch pedal to determine the degree to which the clutch has been engaged. In the case of a hydraulically controlled clutch, the clutch position sensor may be associated with a cylinder of a clutch assembly. For example, the clutch position sensor may be associated with a hydraulic cylinder operatively connected to the clutch pedal and/or the clutch itself In any of the examples mentioned above, the clutch position sensor may comprise a position sensor, e.g. a sensor that senses the position of a particular component, and/or a travel sensor, e.g. a sensor that senses the amount of travel a particular component has undcrtakcn.
The means for determining transmission oil temperature 130 may comprise a sensor, e.g. a temperature sensor. The sensor may he configured to measure transmission oil temperature directly. Alternatively, the sensor may be configured to measure a coolant temperature, e.g. a coolant for cooling the engine and/or the transmission oil.
Accordingly, the systcm 100 may further comprise a means for determining thc transmission oil temperature based on the coolant temperature. The electronic control unit 110 or means for determining transmission oil temperature 130 may comprise the means for determining the transmission oil temperature based on the coolant temperature.
The methods and systems described above may provide a more stable engine idle speed, particularly when the transmission is in neutral and the clutch is engaged. It will be appreciated that by including the transmission drag torque in the calculation of the total powertrain torque loss, a more accurate model of the torquc loss acting on the engine is provided and the electronic control unit is able to better maintain the engine idle speed as a result,

Claims (18)

  1. Claims 1. A method of compensating for transmission drag torque during engine idle, the method comprising: receiving clutch position information; receiving transmission oil temperature information; calculating transmission drag torque based on the clutch position information and the transmission oil temperature information; adjusting a calculated torque load acting on an engine to include the transmission drag torque; and providing a signal to the engine to increase the engine torque output so as to substantially maintain an engine idle speed as the clutch position changes.
  2. 2. The method of claim 1, wherein the method farther comprises: substantially maintaining the engine idle speed as the clutch is released with the transmission in a neutral position.
  3. 3. The method of claim 1 or 2, wherein the method further comprises: providing a sensor associated with the clutch; and sensing the clutch position with the sensor.
  4. 4. The method of claim 1 or 2, wherein the method further comprises: providing a sensor associated with a clutch pedal; and sensing the clutch pedal position with the sensor.
  5. S. The method of any of the preceding claims, wherein the method further cornpnses: providing a sensor to determine the transmission oil temperature.
  6. 6. The method of claim 5, wherein the sensor is configured to measure the uansmission oil temperature.
  7. 7. The method of claim 5, wherein the sensor is configured to measure a coolant temperature and the method ftrther comprises determining the transmission oil temperature based on the coolant temperature.
  8. 8. A system for compensating transmission drag torque during engine idle, the system comprising: an electronic control unit; a clutch position sensor; and a means for determining transmission oil temperature, wherein the electronic control unit is configured to calculate transmission drag torque based on clutch position information provided by the clutch position sensor and transmission oil temperature information provided by the means for determining transmission oil temperature; the electronic control unit being further configured to adjust a calculated torque load on the engine to include the transmission drag torque; and provide a signal to an engine to increase the engine torque output so as to maintain an engine idle speed as the clutch position changes.
  9. 9. The system of claim 8, wherein the electronic control unit is further configured to substantially maintain the engine idle speed as the clutch is released with the transmission in a neutral position.
  10. 10. The system of claim 8 or 9, wherein the clutch position sensor is a sensor associated with a clutch.
  11. 11. The system of claim 8 or 9, wherein the clutch position sensor is a sensor associated with a clutch pedal.
  12. 12. The system of any of claims 8 to II, wherein the means for determining transmission oil temperature comprises a sensor.
  13. 13. The system of claim 12, wherein the sensor is configured to measure transmission oil temperature.
  14. 14. The system of claim 12, wherein the sensor is configured to measure a coolant temperature and the means for determining transmission oil temperature further comprises a means for determining the transmission oil temperature based on the coolant temperature.
  15. 15. An engine assembly comprising the system of any of claims 8 to 14.
  16. 16. A vehicle comprising the system of any of claims 8 to 14.
  17. 17. A method substantially as described herein with reference to and as shown in Figures Ito 3.
  18. 18. A system, engine assembly or vehicle substantially as described herein with 1 5 reference to and as shown in Figures 1 to 3.
GB1307656.7A 2013-04-29 2013-04-29 Transmission Torque Compensation Method and System Expired - Fee Related GB2513564B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB1307656.7A GB2513564B (en) 2013-04-29 2013-04-29 Transmission Torque Compensation Method and System
DE201410105284 DE102014105284A1 (en) 2013-04-29 2014-04-14 Method and system for compensating transmission torque
RU2014116609/11U RU147021U1 (en) 2013-04-29 2014-04-24 SYSTEM FOR COMPENSATION OF THE MOMENT OF THE RESISTANCE OF THE TRANSMISSION ON THE ENGINE IDLE, ENGINE ASSEMBLY AND VEHICLE
CN201410177574.6A CN104121106B (en) 2013-04-29 2014-04-29 Transmission torque compensation method and system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1307656.7A GB2513564B (en) 2013-04-29 2013-04-29 Transmission Torque Compensation Method and System

Publications (3)

Publication Number Publication Date
GB201307656D0 GB201307656D0 (en) 2013-06-12
GB2513564A true GB2513564A (en) 2014-11-05
GB2513564B GB2513564B (en) 2019-05-22

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ID=48626963

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1307656.7A Expired - Fee Related GB2513564B (en) 2013-04-29 2013-04-29 Transmission Torque Compensation Method and System

Country Status (4)

Country Link
CN (1) CN104121106B (en)
DE (1) DE102014105284A1 (en)
GB (1) GB2513564B (en)
RU (1) RU147021U1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106467103B (en) * 2015-08-13 2019-11-05 厦门雅迅网络股份有限公司 A kind of the Intelligent oil-saving control method and system of vehicle
DE102016225198B4 (en) 2016-12-15 2018-09-20 Audi Ag Method and device for adjusting an idling speed of an internal combustion engine of a motor vehicle and motor vehicle
US10612473B2 (en) * 2018-01-25 2020-04-07 GM Global Technology Operations LLC Method and system for controlling a vehicle propulsion system based upon an adjusted clutch torque capacity
CN108894883B (en) * 2018-06-11 2021-04-06 联合汽车电子有限公司 Dynamic control method of torque and method for inhibiting engine speed fluctuation
CN109356734A (en) * 2018-12-03 2019-02-19 奇瑞汽车股份有限公司 A kind of control method of automobile output torque
CN110107416A (en) * 2019-05-09 2019-08-09 广西玉柴机器股份有限公司 Air conditioner load pre-control method
CN111305963B (en) * 2020-01-20 2021-08-31 奇瑞汽车股份有限公司 Torque output control method, device, equipment and storage medium for vehicle
CN113090402A (en) * 2021-04-14 2021-07-09 安徽江淮汽车集团股份有限公司 Vehicle starting auxiliary control method, vehicle and computer readable storage medium

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1205339A2 (en) * 2000-11-09 2002-05-15 Fuji Jukogyo Kabushiki Kaisha Control apparatus of vehicular automated manual transmission
EP1826445A2 (en) * 2006-02-23 2007-08-29 Toyota Jidosha Kabushiki Kaisha Control device and method for vehicle automatic clutch

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0667698B2 (en) * 1986-12-24 1994-08-31 ダイハツ工業株式会社 Control device for automatic starting clutch
JPS6463427A (en) * 1987-09-02 1989-03-09 Daihatsu Motor Co Ltd Controller of automatic starting clutch
JPH02157456A (en) * 1988-12-12 1990-06-18 Nissan Motor Co Ltd Device for controlling output of engine of vehicle
JPH06146945A (en) * 1992-11-12 1994-05-27 Toyota Motor Corp Running control device for vehicle
JPH11343889A (en) * 1998-06-03 1999-12-14 Fuji Heavy Ind Ltd Controller for engine with automatic transmission
CN1896492A (en) * 2005-07-15 2007-01-17 中国第一汽车集团公司 Motor torsional-moment control for starting engine of mixed-kinetic automobile
JP2007309486A (en) * 2006-05-22 2007-11-29 Toyota Motor Corp Starting control device of vehicle
KR101048149B1 (en) * 2009-11-17 2011-07-08 기아자동차주식회사 Regenerative braking torque compensation device and method for hybrid vehicle
US8504265B2 (en) * 2011-05-20 2013-08-06 GM Global Technology Operations LLC System and method for decreasing acceleration disturbance during transmission upshifts
CN102425502A (en) * 2011-09-23 2012-04-25 奇瑞汽车股份有限公司 Frictional torque compensation method and device as well as idle speed control method and system
CN102518519B (en) * 2011-12-23 2013-12-11 重庆长安汽车股份有限公司 Control method of automobile starting for manual transmission

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1205339A2 (en) * 2000-11-09 2002-05-15 Fuji Jukogyo Kabushiki Kaisha Control apparatus of vehicular automated manual transmission
EP1826445A2 (en) * 2006-02-23 2007-08-29 Toyota Jidosha Kabushiki Kaisha Control device and method for vehicle automatic clutch

Also Published As

Publication number Publication date
GB201307656D0 (en) 2013-06-12
CN104121106B (en) 2019-02-05
CN104121106A (en) 2014-10-29
RU147021U1 (en) 2014-10-27
DE102014105284A1 (en) 2014-10-30
GB2513564B (en) 2019-05-22

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Effective date: 20200429