Return control method and device of electric power steering system and storage medium
By acquiring vehicle parameters and using PI calculation to determine the return current value of the electric power steering system, the problem of inaccurate steering wheel return in the electric power steering system has been solved, achieving accurate return under different conditions and improving driving safety and comfort.
CN121734495APending Publication Date: 2026-03-27BYD CO LTD
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Patent Information
- Application Number
- CN202411765755.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2026-03-27
Smart Images
Figure CN121734495A_ABST
Abstract
The invention discloses a return control method and device of an electric power steering system and a storage medium, relates to the technical field of vehicles, and aims to solve the problem that a steering wheel of a vehicle cannot be accurately returned. The method comprises the steps that the vehicle speed, the steering wheel angle, the steering wheel torque and the actual return rotating speed of a steering wheel of a vehicle are obtained; determining a target return rotating speed of the steering wheel according to the vehicle speed and the steering wheel angle; according to the difference value between the target return rotating speed and the actual return rotating speed and the steering wheel torque, proportional integral PI operation is carried out, and a return current value is obtained; and according to the return current value, the electric power steering system is controlled to output return torque to return the steering wheel.
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