Vehicle steering control method, device and vehicle
By calculating the target torque and basic differential torque of the rear axle motor and controlling the output torque of the left and right rear motors, the problem of limited turning of traditional vehicles on narrow roads is solved, resulting in a smaller turning radius and better tire protection.
CN119749695BActive Publication Date: 2026-06-09BYD CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BYD CO LTD
- Filing Date
- 2024-07-04
- Publication Date
- 2026-06-09
Smart Images
Figure CN119749695B_ABST
Abstract
A vehicle steering control method, device and vehicle, the method comprising: obtaining a rear axle motor target torque and a rear axle basic differential torque based on state information of the vehicle; obtaining a left rear motor target torque and a right rear motor target torque based on the rear axle basic differential torque and the rear axle motor target torque, for applying to left rear drive motor and right rear drive motor of the vehicle, so as to control the vehicle to steer. The method, device and vehicle control the vehicle to steer by applying the left rear motor target torque and the right rear motor target torque to the left rear drive motor and the right rear drive motor of the vehicle respectively. The use of the left rear drive motor and the right rear drive motor of the vehicle to output different torques enhances the control ability of the vehicle body posture, greatly reduces the turning radius of the vehicle, and avoids tire wear of the vehicle.
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