Difference of resistance torque depending on the direction of movement of steamgrack to improve driver's sense when approaching close end virtual stop member

摘要

A method for managing an assist motor (m) of a vehicle power steering system (1) comprising an actuator member (4) moving along a functional travel length (L0);How toOver the functional moving length (L0) of actuator memberMove end virtual thresholdAt least one reduced assist region (zard) separated from the normal assist zone (Zan) by SDThe process of defining zargDetermining the instantaneous position and movement direction (d) on the functional moving length (L0) of the actuator member (4) andA reduced assist region (zard) from a normal assist zone (Zan)The actuator member (4) moves to the end of the moving virtual threshold (SG)If you traverse SD,Applying the input resistance set value (cresistance) to the assist motor (m) andIncludingAfter the process of applying the input resistance set valueThe actuator member (4) has a reduced assist zoneIn zarg,The moving direction (d) of the actuator member (4) is reduced assist region (zard)If the direction from zarg to the normal assist region (Zan) isA method characterized in that an output resistance set value (cresistance) is applied.Diagram