Method and apparatus for controlling motor driven power steering system
AssigneeHyundai Mobis Co., Ltd.
InventorDo Young Kim
Life of this patent
Estimating the term…
Abstract
A method for controlling a motor driven steering system includes setting a reference point of a motor angle by a control unit, estimating a steering angular speed and a steering angle using the reference point by the control unit, determining whether the steering angle is included within a predetermined setting range by the control unit, and controlling an output torque of the motor driven steering system by the control unit using the steering angular speed and the steering angle, when the steering angle is included within the setting range.
Claims14
A method for controlling a motor driven power steering system, comprising:
- setting, by a control unit, a reference point of a motor angle;
- estimating, by the control unit, a steering angular speed and a steering angle using the reference point;
- determining, by the control unit, whether the steering angle is included within a predetermined setting range, the predetermined setting range being set to a range of the steering angle before a collision occurs between a stopper of a rack-bar and an inner ball joint socket of a gear box set;
- and
- controlling, by the control unit, an output torque of the motor driven steering system using the steering angular speed and the steering angle, upon a determination that the steering angle is included within the setting range.
An apparatus for controlling a motor driven power steering system, comprising:
- a steering angle sensor configured to detect a steering angle of a steering wheel;
- and
- a control unit configured to set a reference point of a motor angle on the basis of the steering angle, estimate a steering angular speed and a steering angle using the reference point, and control an output torque of the motor driven steering system using the estimated steering angular speed and steering angle if the estimated steering angle is included within a predetermined setting range, the predetermined setting range being set to a range of the steering angle before a collision occurs between a stopper of a rack-bar and an inner ball joint socket of a gear box set.
Dependencies are inferred from the claim text.