Vehicle differential control

A control system for a drive torque distribution to a vehicle's wheels, comprises monitoring the difference between loads in the vicinity of at least 2 different wheels to which torque is distributed. A degree of locking of torque distribution means is varied accordingly. Thus a difference in s...

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Bibliographische Detailangaben
Hauptverfasser:	KEITH GARY REGINALD PARSONS, DAVID ANDREW CLARE
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES AUXILIARY DRIVES FOR VEHICLES CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES INSTRUMENTATION OR DASHBOARDS FOR VEHICLES PERFORMING OPERATIONS ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	A control system for a drive torque distribution to a vehicle's wheels, comprises monitoring the difference between loads in the vicinity of at least 2 different wheels to which torque is distributed. A degree of locking of torque distribution means is varied accordingly. Thus a difference in speed or drive torque supplied to different wheels is controlled. The system is typically applied to a four wheel drive vehicle comprising centre and rear differentials. A controller 28 receives signals from load sensors 42,44,46,48 in the vicinity of each wheel 11,12,13,14. The controller 28 determines the difference in load between the two rear wheels 13,14 and the difference in load between the front wheels 11,12 and the rear wheels 13,14. The controller 28 typically increases the degree of locking of the centre differential and of the rear wheels as a difference in load between front and rear wheels increases.