PURPOSE: To provide a general-purpose motor-driven power steering applicable to industrial vehicles in a wide range.
CONSTITUTION: There are provided a steering torque sensor for detecting steering torque, either one of a vehicle speed sensor for detecting the travel state of a vehicle and a loadage sensor 3, and dipping switches 4a-4c serving as selecting means for selecting vehicle characteristics. A storage device 11 is previously stored with numerous output current characteristics and rotating speed characteristics as well as with a storage table for selecting these characteristics by vehicle characteristic numbers and vehicle state parameters. These characteristics are set by the dipping switches 4a-4c according to the item of an industrial vehicle so as to display steering assisting function with the characteristics suitable for the vehicle.
MIYAURA YASUHIKO
KANO HIROYUKI
ISHIDA KOICHI
