Robust steering-pull torque compensation

A controller ( 32 ) for a vehicular system ( 10 ) that includes a hand-wheel ( 16 ) and an electric motor ( 34 ) includes a torque-assist function ( 56 ) responsive to a signal representing the torque applied to the hand-wheel ( 16 ) for providing a torque-assist command to the motor ( 34 ), and a s...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LIN WILLIAM CHIN-WOEI, COLOSKY MARK P, PATTOK KATHRYN L, CHANDY ASHOK, DENG WEIWEN, CHIN YUEN-KWOK, AMBERKAR SANKET S
Format:	Patent
Sprache:	eng
Schlagworte:	GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS MOTOR VEHICLES PERFORMING OPERATIONS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TRAILERS TRANSPORTING
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Beschreibung
Zusammenfassung:	A controller ( 32 ) for a vehicular system ( 10 ) that includes a hand-wheel ( 16 ) and an electric motor ( 34 ) includes a torque-assist function ( 56 ) responsive to a signal representing the torque applied to the hand-wheel ( 16 ) for providing a torque-assist command to the motor ( 34 ), and a steering-pull compensator ( 52 ) responsive to a signal representing a valid ignition cycle for modifying the torque-assist command to the motor ( 34 ) by an offset corresponding to a detected steering-pull condition; where the method of control includes receiving the signal indicative of the torque applied to the hand-wheel ( 16 ), providing a torque-assist command to the motor ( 34 ) in response to the received torque signal, detecting an enabling signal related to the signal representing a valid ignition cycle, quantifying a steering-pull condition in response to the received and detected signals, and modifying the torque-assist command to the motor ( 34 ) by an offset corresponding to the quantified steering-pull condition.