专利名称：METHOD FOR ADJUSTING A STEERING
WHEEL RESTORING TORQUE ANDELECTROMECHANICAL MOTOR VEHICLESTEERING SYSTEM
发明人：KWASNY, OLAF,APEL, ANDREAS,BERKNER,
STEFAN
申请号：EP11758400.3申请日：20110919公开号：EP2627550A1公开日：20130821
摘要：The invention relates to a method for adjusting a steering wheel restoringtorque of an electromechanical steering system, wherein by means of said steering wheelrestoring torque a vehicle steering wheel is pushed back to an angular position leadingto straight driving. The steering wheel restoring torque is set according to a restoringfunction, which considers a present steering angular position, wherein the restoringfunction is designed in such a way that the restoring function specifies restoring torquesthat increase with increasing deflection of the vehicle steering wheel from the angularposition leading to straight travel, the restoring function contains a range leading to thesign change of the restoring torque, wherein said range contains the angular positionintended for straight driving, and said range provides for restoring torques that arerelatively small in magnitude compared to the maximum restoring torques that can beprompted by the restoring function. An angle value fed to the restoring function ischanged by an angle offset value, wherein said angle offset value is adjusted in such a way
that the magnitude of the steering wheel restoring torque perceived by the driver duringstraight driving is below a threshold that can be customized. It is thereby possible tooperate an electromechanical steering system in such a way that, for a motor vehicleequipped therewith, advantageous straight-travel behavior results, while the steeringwheel restoring characteristics are found to be suitable by the driver. The inventionfurther relates to an electromechanical steering system suitable for performing themethod.
申请人：VOLKSWAGEN AKTIENGESELLSCHAFT
地址：Berliner Ring 2 38440 Wolfsburg DE
国籍：DE
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