EPS System Outline: Notes
The power steering system adopts the electric power steering assisting for the control force of the steering wheel in the driving force of the electric motor.
The EPS control unit is doing an appropriate steering force control according to the running situation of the vehicle (at time of low speed, lightness, by the control of emphasis and high-speed running time, control with the steady weigh and the control which will be switched from low speed to high speed smoothly later) by the ESP motor.
The EPS control unit is designed for use with an automotive power steering for the primary purpose of controlling the assist motor (brush less motor) for the power steering by using as inputs the steering torque signals received from the "steering torque sensor" installed in the steering gearbox as well as the speed signals received from the "vehicle speed sensor" installed in the vehicle. In addition to the above function, the EPS control unit also provides the failsafe function, self diagnosis function and motor output limiting function.