GB0210084D0 - Vehicle differential control - Google Patents

Vehicle differential control

Info

Publication number
GB0210084D0
GB0210084D0 GBGB0210084.0A GB0210084A GB0210084D0 GB 0210084 D0 GB0210084 D0 GB 0210084D0 GB 0210084 A GB0210084 A GB 0210084A GB 0210084 D0 GB0210084 D0 GB 0210084D0
Authority
GB
United Kingdom
Prior art keywords
degree
vehicle
sensors
roughness
signals
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
Application number
GBGB0210084.0A
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 GBGB0210084.0A priority Critical patent/GB0210084D0/en
Publication of GB0210084D0 publication Critical patent/GB0210084D0/en
Priority to GB0308514A priority patent/GB2388348B/en
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • B60K23/00—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
    • B60K23/08—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels, for switching from driving one axle to driving two or more axles
    • B60K23/0808—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for changing number of driven wheels, for switching from driving one axle to driving two or more axles for varying torque distribution between driven axles, e.g. by transfer clutch
    • 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
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
    • 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
    • B60K23/00—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for
    • B60K23/04—Arrangement or mounting of control devices for vehicle transmissions, or parts thereof, not otherwise provided for for differential gearing
    • 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
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
    • B60K17/20—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing in which the differential movement is limited
    • 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
    • B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
    • B60W2050/0001—Details of the control system
    • B60W2050/0043—Signal treatments, identification of variables or parameters, parameter estimation or state estimation
    • B60W2050/0052—Filtering, filters
    • 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
    • B60W2520/28—Wheel 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
    • B60W2552/35—Road bumpiness, e.g. potholes
    • 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
    • F16H48/00—Differential gearings
    • F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Arrangement And Driving Of Transmission Devices (AREA)

Abstract

A control system for a vehicle controls the distribution of drive torque to its road wheels. The system increases a degree of locking of a differential in response to a detected increase in road roughness. Thus a difference in drive torque supplied to different wheels is reduced. The system is typically applied to a four wheel drive vehicle comprising centre and rear differentials. A controller 28 receives signals from sensors, such as ride height sensors 42,44,46,48 and wheel speed sensors 34,35,38,40. The controller 28 determines from the ride height signals and wheel speed signals the degree of roughness of the surface over which the vehicle is travelling. The degree of locking is increased with increased road roughness to avoid loss of traction.
GBGB0210084.0A 2002-05-02 2002-05-02 Vehicle differential control Ceased GB0210084D0 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GBGB0210084.0A GB0210084D0 (en) 2002-05-02 2002-05-02 Vehicle differential control
GB0308514A GB2388348B (en) 2002-05-02 2003-04-14 Vehicle differential control

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0210084.0A GB0210084D0 (en) 2002-05-02 2002-05-02 Vehicle differential control

Publications (1)

Publication Number Publication Date
GB0210084D0 true GB0210084D0 (en) 2002-06-12

Family

ID=9935963

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0210084.0A Ceased GB0210084D0 (en) 2002-05-02 2002-05-02 Vehicle differential control
GB0308514A Expired - Fee Related GB2388348B (en) 2002-05-02 2003-04-14 Vehicle differential control

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB0308514A Expired - Fee Related GB2388348B (en) 2002-05-02 2003-04-14 Vehicle differential control

Country Status (1)

Country Link
GB (2) GB0210084D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7779947B2 (en) 2007-01-31 2010-08-24 Caterpillar Inc Acceleration based automated slip control system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4744437A (en) * 1986-02-27 1988-05-17 Fuji Jukogyo Kabushiki Kaisha Power transmitting system for a four-wheel drive vehicle
WO1994026548A1 (en) * 1993-05-15 1994-11-24 Alan Dean Hydraulic drive system
US5524080A (en) * 1994-11-22 1996-06-04 Zexel Torsen Inc. Traction control with variable threshold
JPH0948254A (en) * 1995-08-09 1997-02-18 Hitachi Ltd Torque divider for four-wheel drive vehicle
JP2000085403A (en) * 1998-09-10 2000-03-28 Tochigi Fuji Ind Co Ltd Differential gear
GB2357159B (en) * 1999-12-07 2003-12-31 Rover Group A control system
DE10216565A1 (en) * 2002-04-15 2003-10-23 Zahnradfabrik Friedrichshafen Device and method for the automatic control of at least one differential lock

Also Published As

Publication number Publication date
GB0308514D0 (en) 2003-05-21
GB2388348B (en) 2005-10-19
GB2388348A (en) 2003-11-12

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Legal Events

Date Code Title Description
AT Applications terminated before publication under section 16(1)