METHOD FOR CONTROLLING END OF TRAVEL FOR ELECTRIC POWER-ASSISTED STEERING

摘要

The invention relates to motor vehicles having a power-assisted steering rack. The maximum current strength flowing through the electric power-assistance motor is controlled so as to adapt the assistance torque to the approach of the end-of-travel positions of the rack. Said control is carried out or activated on the basis of parameters including the acceleration value of the rotation of the steering wheel, and by controlling the assistance torque so as to target a deceleration value or profile of the rotation of the steering wheel, thereby making it possible to reduce the shocks and noise when the steering system reaches the steering lock stop.

主权项

1. A method for controlling end of travel, for a steering rack of a motor vehicle with electric power assistance, a method in which the maximum intensity of the electric current flowing through the electric power assistance motor is controlled to adapt the power assistance torque, at the approach of the end of travel positions of the rack, so as to reduce the shocks and noise when the steering system reaches the steering lock stop, wherein the control of the power assistance torque, at the approach of the end of travel positions, is carried out or activated based on parameters including the acceleration value of the rotation of the steering wheel, and by controlling the power assistance torque so as to target a deceleration value or profile of the rotation of the steering wheel.