Vehicle steering device

摘要

A vehicle steering device including a steering torque detection unit that detects a steering torque, the vehicle steering device controlling an electric current value, which is applied to an electric motor, and applying an assist torque to a steering system based on the steering torque, includes a one-side pull response control unit that detects one-side pull generated at a vehicle, and corrects the current value to restrict the one-side pull. One-side pull response control is restricted or inhibited for a predetermined time after the vehicle ends a turn.

主权项

1. A vehicle steering device comprising:
a steering torque detection unit that detects a steering torque, the vehicle steering device controlling an electric current value applied to an electric motor to apply an assist torque to a steering system based on the steering torque; a one-side pull response controller that detects one-side pull of a vehicle, and determines if a vehicle is traveling straight in accordance with a vehicle behavior and a steering angle, calculates an integral value of the steering torque by integrating the steering torque while it is determined that the vehicle is traveling straight, and calculates a correction current value, which corrects the electric current value to restrict the one-side pull of the vehicle based on the integral value and the steering angle; and a switch device configured to enable the one-side pull response control by the one-side pull response controller, the switch device serving as a cruise control switch device which enables cruise control by a cruise control controller equipped in a vehicle, the switch device being operated by a vehicle operator, wherein the one-side pull response controller, on condition that the switch device is in ON state, restricts or prohibits the one-side pull response control for a predetermined amount of time after the vehicle ends a turn and the vehicle is determined as traveling straight even if the one-side pull is still being detected.