Patent ID: 6367577
Filing Date: 2002-04-09
Classification: B62D,Y10T

Abstract:
A vehicle including a variable gear ratio steering device and an electric power steering apparatus, the variable gear ratio steering device influencing on a steering system of the vehicle and varying a ratio of a steering angle of steerable road wheels to a steering wheel angle by driving an electric motor in accordance with a vehicle speed, and the electric power steering apparatus influencing on the steering system of the vehicle and providing an assist steering wheel torque by driving an electric motor in accordance with a manual steering wheel torque, the vehicle comprising:a power supply voltage detector for detecting a voltage of a power supply; and a control unit for controlling the electric motor of said variable gear ratio steering device in accordance with the detected voltage, wherein, when the detected voltage decreases to a certain voltage or lower, the control unit brings the variable gear ratio steering device into a slow state and thereafter stops the variable gear ratio steering device.