GB2446419A - Traction control system for a vehicle - Google Patents

Traction control system for a vehicle Download PDF

Info

Publication number
GB2446419A
GB2446419A GB0702609A GB0702609A GB2446419A GB 2446419 A GB2446419 A GB 2446419A GB 0702609 A GB0702609 A GB 0702609A GB 0702609 A GB0702609 A GB 0702609A GB 2446419 A GB2446419 A GB 2446419A
Authority
GB
United Kingdom
Prior art keywords
vehicle
traction control
wheel slip
value
control system
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
GB0702609A
Other versions
GB0702609D0 (en
GB2446419B (en
Inventor
Andrew Gavin Maskell
Karl Gordon Richards
Elliot Duncan Hemes
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 GB0702609A priority Critical patent/GB2446419B/en
Publication of GB0702609D0 publication Critical patent/GB0702609D0/en
Publication of GB2446419A publication Critical patent/GB2446419A/en
Application granted granted Critical
Publication of GB2446419B publication Critical patent/GB2446419B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • B60W30/18172—Preventing, or responsive to skidding of wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K28/00—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
    • B60K28/10—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the vehicle 
    • B60K28/16—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the vehicle  responsive to, or preventing, skidding of wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B60L15/2072—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for drive off
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/10—Indicating wheel slip ; Correction of wheel slip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/10—Indicating wheel slip ; Correction of wheel slip
    • B60L3/106—Indicating wheel slip ; Correction of wheel slip for maintaining or recovering the adhesion of the drive wheels
    • 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
    • B60W2520/00—Input parameters relating to overall vehicle dynamics
    • B60W2520/04—Vehicle stop
    • 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
    • B60W2520/00—Input parameters relating to overall vehicle dynamics
    • B60W2520/10—Longitudinal speed
    • 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
    • B60W2552/00—Input parameters relating to infrastructure
    • B60W2552/05—Type of road
    • 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
    • B60W2552/00—Input parameters relating to infrastructure
    • B60W2552/40—Coefficient of friction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility

Abstract

When it is detected by velocity sensors (1-4, figure 1) that the vehicle is stationary 14 a slip threshold is set 15 by the controller (6, figure 1) to a low value so that virtually no wheel slip is allowed. Once the speed of the vehicle has reached a predetermined value, a higher wheel slip threshold is set 17 so that the vehicle's forward momentum can be maintained. This permits the vehicle to move off from rest without the wheels digging into a deformable surface, for example by controlling the throttle of the vehicle's engine (12, figure 1).

Description

Traction Control system for a vehicle This invention relates to
traction control systems for a vehicle and particularly to systems for controlling the vehicle's motion when setting off from rest on a deformable surface such as soft sand.
Known traction control systems compare a measurement of wheel slip with a threshold and reduce the torque applied to the driven wheels (usually by limiting engine output)if the slip threshold is exceeded. However, in addition to slowing down the rotational speed of the slipping wheel, the speed of vehicle is also reduced.
When driving on soft sand it is desirable to set a higher slip threshold than when driving on asphalt, for example, in order to maintain forward momentum and prevent the vehicle from bogging down.
EP 0574150 discloses a traction control system whereby the slip threshold is increased if it is detected that the traction control system is causing the vehicle to slow down too much.
WO 02/04242 describes a traction control system in which, on detecting entry onto a deformable surface, the wheel slip threshold is linearly increased over a period of time in order to increase the driven wheel speed and allow the wheels to churn through the loose surface.
While a high slip threshold is desirable while driving on sand, the opposite is true in the situation where the vehicle is starting of f from rest (on sand). If a high level of spin is allowed, then as the stationery vehicle attempts to pull away, the spinning wheels tend to dig into the sand and the vehicle is unable to move at all. Hence, a traction control system which permitted a vehicle to move off from rest on a deformable surface, such as sand, with the minimum of wheel spin and which enabled the vehicle to gain sufficient momentum in order to make good progress, would be advantageous.
According to a first aspect of the present invention, there is provided a traction control system for a vehicle for assisting the vehicle in starting off from rest on a deformable surface, the system including; means for measuring vehicle speed, and a controller connected to said means for measuring, wherein the controller is adapted to set a wheel slip threshold to a first value when the vehicle is stationary and to reset the wheel slip threshold to a second value, higher than the first value, when the vehicle speed reaches a predetermined value.
Preferably, the first slip threshold is set very low so that that virtually no slip is allowed (1 kph of overelip for example). This enables the vehicle to get moving and gradually build up some momentum. Once the vehicle has reached a speed of typically 5kph, the slip threshold is increased to a comparatively high value, thus permitting a high degree of slip and allowing the vehicle to maintain its momentum.
The traction control system may be further provided with means for measuring wheel slip and the controller may be further adapted to compare measured wheel slip with slip thresholds and to generate a control signal for a powertrain associated with the vehicle for adjusting a powertrain torque demand in order to reduce wheel slip to a target value.
Instead of or in addition to adjusting torque demand, the controller may be adapted to generate signals for controlling the braking of individual wheels in order to reduce slip.
The means for measuring vehicle speed and wheel slip may include wheel speed sensors.
The powertrain may comprise an internal combustion engine or an electric motor.
In one embodiment, the controller has a torque demand input and is adapted to continuously monitor powertrain torque demanded by the driver (for example, throttle pedal position) and to modify the powertrain torque demand on resetting the wheel slip threshold by an amount dependent on the magnitude of the driver-demanded powertrain torque. This permits the controller to reduce torque demand once the set speed is reached (for cases where the driver has pressed the throttle pedal close to its maximum extent), so that the engine speed and/or vehicle acceleration would not suddenly increase at an alarming rate due to the slip threshold changing to the higher value.
In accordance with a second aspect, the invention consists of a method of traction control for a vehicle for assisting the vehicle in starting off from rest on a deformable surface, the method including the steps of; monitoring vehicle speed, setting a wheel slip threshold to a first value when the vehicle is stationary, resetting the wheel slip threshold to a second value higher than the first value when the vehicle speeds reaches a predetermined value.
An embodiment of the invention will now be described, by way of example only, with reference to the drawings of which; Figure 1 is a schematic block diagram of a traction control system in accordance with embodiment of the invention, and Figure 2 is a flowchart illustrating operation of the traction control system of Figure 1.
In the example of Figure 1, the traction control system is suitable for incorporation in a vehicle having four driven wheels. The outputs from four wheel sensors 1,2,3,4, each being associated with a respective one of four driven wheels (not shown) are connected to a speed calculator 5. The speed calculator 5 has two outputs which are connected to a controller 6. A first output on line 7 provides the controller 6 with a measurement of vehicle speed. A second output on line 8 provides the controller 6 with a measurement of wheel slip. A further input to the controller 6 on line 9 provides a terrain type (eg.sand) signal. This input is supplied by a driver-operated switch 10. A driver demand signal is supplied from a throttle pedal position sensor 11 to the controller 6. An output of the controller 6 supplies an engine torque demand signal to an internal combustion engine 12. This signal may typically be used to control a throttle of the engine 12, for example.
In this example, the speed calculator 5 can be arranged to provide a measurement of vehicle speed for the controller 6 by calculating vehicle speed as the speed of the slowest wheel or as an average of the speed of two or more wheels.
The speed calculator 5 can therefore also detect when the vehicle is stationary. Further, the speed calculator 5 provides a measurement of wheel slip to the controller 6 by comparing individual wheel speeds (as provided by the wheel speed sensors 1-4) with the calculated vehicle speed.
The controller 6 has stored therein, two values of wheel ship threshold for comparison with a measured value of wheel slip under certain operating conditions to be described below.
The controller 6 continuously monitors wheel speed and wheel slip and reduces engine torque demand when a wheel slip threshold is exceeded. Hence, the degree of wheel slip can be kept below a predetermined level.
With reference to the flow diagram of figure 2, operation of the traction control system of figure 1 will now be described.
At step 13, the controller 6 interrogates the driver-operated terrain type selector switch 10 to determine if the vehicle is on sand. This switched 10 can be a rotary type switch whereby the driver sets it to the type of terrain the vehicle is traversing, for example asphalt, mud, sand.
If it is determined that the vehicle is on sand, then the process proceeds to step 14 whereby the controller 6 interrogates the speed calculator 5 to ascertain whether the vehicle is stationary or not.
If the vehicle is stationary then the controller 6 selects a lower one (Ti) of the two stored slip thresholds for comparison with the wheel slip measurements (step 15).
The controller 6 continues to monitor vehicle speed (step 16). When vehicle speed reaches a predetermined value (5kph in this example), a higher (T2) of the stored slip thresholds is selected by the controller 6 for comparison with the wheel slip measurements (step 17).

Claims (8)

1. A traction control system for a vehicle for assisting the vehicle in starting off from rest on a deformable surface, the system including; means for measuring vehicle speed, and a controller connected to said means for measuring, wherein the controller is adapted it to set a wheel slip threshold to a first value when the vehicle is stationary and to reset the wheel slip threshold to a second value, higher than the first value, when the vehicle speed reaches a predetermined value.
2. A traction control system according to claim 1 further including means for measuring wheel slip and wherein the controller is adapted to compare measured wheel slip with slip thresholds and to generate a powertrain control signal for use by a powertrain associated with the vehicle for adjusting a powertrain torque demand in order to reduce wheel slip to a target value. -9.
3. A traction control system according to either preceding claim including wheel speed sensors associated with each wheel of the vehicle.
4. A traction control system according to any preceding claim in which the controller is adapted to generate signals for controlling the braking of the individual wheels of the vehicle in order to reduce wheel slip.
5. A traction control system according to any preceding claim in which the controller is further adapted to monitor driver-demanded powertrain torque and to modify the powertrain torque demand on resetting the wheel slip threshold by an amount dependent on the magnitude of the driver-demanded powertrain torque.
6. a method of traction control for a vehicle for assisting the vehicle in starting off from rest on a deformable surface, the method including the steps of; monitoring vehicle speed, setting a wheel slip threshold to a first value when the vehicle is stationary, resetting the wheel slip threshold to a second value higher than the first value when the vehicle speed reaches a predetermined value.
7. A traction control system for a vehicle substantially as herejnbefore described with reference to the drawings.
8.A method of traction control for a vehicle substantially as hereinhefore described with reference to the drawings.
GB0702609A 2007-02-12 2007-02-12 Traction control system for a vehicle Active GB2446419B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0702609A GB2446419B (en) 2007-02-12 2007-02-12 Traction control system for a vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0702609A GB2446419B (en) 2007-02-12 2007-02-12 Traction control system for a vehicle

Publications (3)

Publication Number Publication Date
GB0702609D0 GB0702609D0 (en) 2007-03-21
GB2446419A true GB2446419A (en) 2008-08-13
GB2446419B GB2446419B (en) 2011-07-06

Family

ID=37899099

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0702609A Active GB2446419B (en) 2007-02-12 2007-02-12 Traction control system for a vehicle

Country Status (1)

Country Link
GB (1) GB2446419B (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2454336A (en) * 2007-10-29 2009-05-06 Ford Global Tech Llc Traction control
US8140238B2 (en) 2007-10-26 2012-03-20 Ford Global Technologies, Llc Detection and control of power induced hop during traction control in a vehicle
US8244445B2 (en) 2007-10-30 2012-08-14 Ford Global Technologies, Llc Stuck vehicle with time and pedal related traction control
GB2500698A (en) * 2012-03-30 2013-10-02 Jaguar Cars Vehicle traction control maintaining wheel slip in the range of 5 to 20 percent
GB2508689A (en) * 2012-09-06 2014-06-11 Jaguar Land Rover Ltd A vehicle control system including a vehicle launch assist function and a method of controlling a vehicle
WO2014148979A1 (en) * 2013-03-19 2014-09-25 Scania Cv Ab Regulating system and method for autonomous vehicles with antispin system
WO2014184344A1 (en) * 2013-05-16 2014-11-20 Jaguar Land Rover Limited Vehicle traction control
GB2504834B (en) * 2012-06-11 2015-05-06 Jaguar Land Rover Ltd Vehicle control system and method of controlling a vehicle
EP2982537A4 (en) * 2013-04-01 2016-11-16 Pioneer Corp Traction control device and traction control method
GB2562265A (en) * 2017-05-10 2018-11-14 Jaguar Land Rover Ltd Apparatus and method for vehicle recovery

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0434059A1 (en) * 1989-12-19 1991-06-26 Japan Electronic Control Systems Co., Ltd. Traction control system for automotive vehicle with feature of prediction of road friction level
US5262952A (en) * 1990-02-22 1993-11-16 Mazda Motor Corporation Slip control system for motor vehicle
EP0794080A2 (en) * 1996-03-05 1997-09-10 Ford Motor Company Vehicle traction control with throttle position limit
US5813936A (en) * 1996-03-15 1998-09-29 Honda Giken Kogyo Kabushiki Kaisha Driving force controller in vehicle for forcibly upshifting in response to a driving force traction controller and a vehicle stopped detection means
WO2002004242A1 (en) * 2000-07-06 2002-01-17 Kelsey-Hayes Company Traction control algorithm for vehicle operation upon deformable road surfaces

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3948453B2 (en) * 2003-11-18 2007-07-25 日産自動車株式会社 Vehicle driving force control device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0434059A1 (en) * 1989-12-19 1991-06-26 Japan Electronic Control Systems Co., Ltd. Traction control system for automotive vehicle with feature of prediction of road friction level
US5262952A (en) * 1990-02-22 1993-11-16 Mazda Motor Corporation Slip control system for motor vehicle
EP0794080A2 (en) * 1996-03-05 1997-09-10 Ford Motor Company Vehicle traction control with throttle position limit
US5813936A (en) * 1996-03-15 1998-09-29 Honda Giken Kogyo Kabushiki Kaisha Driving force controller in vehicle for forcibly upshifting in response to a driving force traction controller and a vehicle stopped detection means
WO2002004242A1 (en) * 2000-07-06 2002-01-17 Kelsey-Hayes Company Traction control algorithm for vehicle operation upon deformable road surfaces

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8140238B2 (en) 2007-10-26 2012-03-20 Ford Global Technologies, Llc Detection and control of power induced hop during traction control in a vehicle
US7853389B2 (en) 2007-10-29 2010-12-14 Ford Global Technologies, Llc Traction control for performance and demonstration spin
GB2454336B (en) * 2007-10-29 2012-04-11 Ford Global Tech Llc A method for controlling a powertrain of a vehicle
DE102008064745B3 (en) 2007-10-29 2019-01-24 Ford Global Technologies, Llc Method for controlling a drive train of a vehicle
DE102008053628B4 (en) * 2007-10-29 2017-10-12 Ford Global Technologies, Llc Drive control for demonstrating and demonstrating the wheel spin
GB2454336A (en) * 2007-10-29 2009-05-06 Ford Global Tech Llc Traction control
US8244445B2 (en) 2007-10-30 2012-08-14 Ford Global Technologies, Llc Stuck vehicle with time and pedal related traction control
GB2500698A (en) * 2012-03-30 2013-10-02 Jaguar Cars Vehicle traction control maintaining wheel slip in the range of 5 to 20 percent
US9688279B2 (en) 2012-03-30 2017-06-27 Jaguar Land Rover Limited Vehicle traction control method, system, controller and vehicle with such a system
GB2500698B (en) * 2012-03-30 2014-12-17 Jaguar Land Rover Ltd Vehicle traction control
US9475395B2 (en) 2012-06-11 2016-10-25 Jaguar Land Rover Limited Vehicle control system and method to provide desired wheel slip
GB2504834B (en) * 2012-06-11 2015-05-06 Jaguar Land Rover Ltd Vehicle control system and method of controlling a vehicle
GB2508689B (en) * 2012-09-06 2015-03-25 Jaguar Land Rover Ltd Vehicle control system and method
GB2508689A (en) * 2012-09-06 2014-06-11 Jaguar Land Rover Ltd A vehicle control system including a vehicle launch assist function and a method of controlling a vehicle
WO2014148979A1 (en) * 2013-03-19 2014-09-25 Scania Cv Ab Regulating system and method for autonomous vehicles with antispin system
EP2982537A4 (en) * 2013-04-01 2016-11-16 Pioneer Corp Traction control device and traction control method
CN105263777A (en) * 2013-05-16 2016-01-20 捷豹路虎有限公司 Vehicle traction control
US9676390B2 (en) 2013-05-16 2017-06-13 Jaguar Land Rover Limited Vehicle traction control
WO2014184344A1 (en) * 2013-05-16 2014-11-20 Jaguar Land Rover Limited Vehicle traction control
CN105263777B (en) * 2013-05-16 2018-07-20 捷豹路虎有限公司 Vehicle traction controls
GB2562265A (en) * 2017-05-10 2018-11-14 Jaguar Land Rover Ltd Apparatus and method for vehicle recovery
GB2562265B (en) * 2017-05-10 2020-06-10 Jaguar Land Rover Ltd Apparatus and method for vehicle recovery

Also Published As

Publication number Publication date
GB0702609D0 (en) 2007-03-21
GB2446419B (en) 2011-07-06

Similar Documents

Publication Publication Date Title
GB2446419A (en) Traction control system for a vehicle
US10414404B2 (en) Vehicle control system and method for controlling a vehicle
US10518771B2 (en) System and method for controlling vehicle speed
JP6149112B2 (en) Vehicle control system and control method
US10253860B2 (en) Driveline and method of controlling a driveline
US8175785B2 (en) System and method for performance launch control of a vehicle
US9555703B2 (en) Adaptive control of motor vehicle powertrain
US9545926B2 (en) Vehicle control system and method for switching between powertrain control functions
US7894971B2 (en) Vehicle control apparatus
US8200408B2 (en) System and method for active traction control of a vehicle
US9849889B2 (en) Adaptive control of motor vehicle powertrain
GB2499461A (en) Cruise control which sets a speed ceiling when off-road driving is detected
GB2508688A (en) A vehicle control system and a method of controlling a vehicle
JPS6099757A (en) Slip preventing device for vehicle
US20150210282A1 (en) Speed control system and method for operating the same
AU2015208379A1 (en) Vehicle speed control system and method
JP2010285987A (en) System and method for controlling traction in two-wheeled vehicle
US11897472B2 (en) Method for controlling a drive motor in a motor vehicle
US6535809B1 (en) Vehicle engine torque control with engine drag control mode
CN107000807A (en) The identification of shift process
US6577944B1 (en) Traction control system
US20090319146A1 (en) Traction control system for diesel powered vehicles
JP5315294B2 (en) Vehicle control device
RU2575331C2 (en) Car control system and car control method
SE532944C2 (en) Method and computer program for improving the drivability of a motor vehicle

Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20131128 AND 20131204