Differentiation of a resisting torque according to direction of movement of a steering rack for improving feel of driver at the approach to an end-of-travel virtual stop

• Main Authors: Baudouin, Nicolas, Thiery, Arnaud, Moulaire, Pascal, Barthes, Dimitri
• Format: Patent
• Language: English
• Published: 31.01.2023
• Subjects: LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; MOTOR VEHICLES; PERFORMING OPERATIONS; TRAILERS; TRANSPORTING

A method for managing a power steering system assist motor, includes defining, over the functional length of the actuator member, at least one reduced assist area separate from a normal assist area by an end-of-travel virtual threshold, a step of assessing an instantaneous position and a direction of the movement of the actuator member on the functional length, a step of applying an input resistance set point value to the assist motor when the actuator member crosses the end-of-travel virtual threshold in such a way as to move from the normal assist area into the reduced assist area. After the step of applying an input resistance set point value, an output resistance set point value is applied when the actuator member is in the reduced assist area and the direction of the movement of the actuator member is directed from the reduced assist area towards the normal assist area.