Method and apparatus for learning neutral position of vehicle steering angle

A novel method and apparatus for learning the neutral position of vehicle steering angle are disclosed, in which first neutral position desition means desides that the steering shaft is at neutral position when a running speed detector (80,81) detects that the vehicle speed is not less than a predet...

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Bibliographische Detailangaben
Hauptverfasser:	MIYATA, YASUNOBU, OTAKE, KATSUNORI, ITO, MASAYOSHI, HASHIGUCHI, MASAYUKI, YAMADA, KIICHI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL 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 BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL INSTRUMENTATION OR DASHBOARDS FOR VEHICLES LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS MOTOR VEHICLES PERFORMING OPERATIONS PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES TRAILERS TRANSPORTING VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	A novel method and apparatus for learning the neutral position of vehicle steering angle are disclosed, in which first neutral position desition means desides that the steering shaft is at neutral position when a running speed detector (80,81) detects that the vehicle speed is not less than a predetermined threshold level, that the difference in peripheral speed between the right and left drive wheels is smaller than a predetermined first straight-running threshold value and also when a steering shaft reference position sensor (84) continues to detect a reference position of the steering shaft for at least a first count time. The vehicle steering angle is computed (15) on the basis of the angular displacement from the neutral position thus learned.