An electric power steering system for a vehicle works to determine an assist command based on steering torque to produce assist torque through an electric motor for assisting in turning a steering wheel of the vehicle, also determines a tracking command for producing automatic steering torque which brings a value of a given physical quantity associated with steering of the vehicle into agreement a target value, and controls a response rate at which a value of a given physical quantity is brought into agreement with a target value in a feedback mode. A motor driver works to actuate an electric motor based on the sum of the assist command and the tracking command to output the torque for steering the system vehicle.
Electric power steering system with motor controller
2018-07-31
Patent
Electronic Resource
English
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |