Vehicle steering control method, device and system
A steering control and vehicle technology, applied in automatic steering control components, vehicle components, steering mechanisms, etc., can solve problems such as high requirements for actuator response, poor system robustness, and impact on vehicle safety, to increase sensitivity, improve Operational stability and reliability, the effect of reducing the turning radius
Active Publication Date: 2021-11-12
CHINA FIRST AUTOMOBILE
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[0003] However, in the prior art, a prescribed algorithm is used to calculate the rear wheel angle, which focuses on the control of the driver's somatosensory vehicle slip angle during maneuvering, which requires a large amount of vehicle state information to estimate the vehicle slip angle, and The input accuracy of the road surface friction coefficient is high, the system robustness is poor, and the requirements for the response of the actuator are very high. The response of the vehicle is not fast enough, which affects the safety of the vehicle.
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[0055] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, the drawings only show some but not all structures related to the present invention. The embodiments of the present invention and features in the embodiments may be combined with each other without conflict.
[0056] An embodiment of the present invention provides a vehicle steering control method, which is suitable for steering control of a passenger car. The method may be executed by the vehicle steering control device provided in the embodiment of the present invention, and the device may be implemented in software and / or hardware. figure 1 It is a flowchart of a vehicle steering control method provided by an em...
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The embodiment of the present invention discloses a vehicle steering control method, device and system. By acquiring the vehicle speed signal and the steering wheel angle signal, and according to the vehicle speed signal, the proportional coefficient between the front wheel angle and the rear wheel angle of the vehicle is determined, and according to The steering wheel angle signal determines the front wheel angle of the vehicle so that the rear wheel angle can be calculated based on the proportional coefficient and the front wheel angle. The embodiment of the present invention can determine the proportional coefficient of the front wheel angle and the rear wheel angle of the vehicle according to the speed of the vehicle, so as to improve the response speed of the rear wheel steering, and further improve the safety and stability of the vehicle steering control.
Description
technical field [0001] Embodiments of the present invention relate to the technical field of vehicle control, and in particular, to a vehicle steering control method, device, and system. Background technique [0002] At present, the steering control of the car usually receives the steering angle signal of the steering wheel by the front wheel steering actuator to control the front wheel angle of the car; while the rear wheel steering actuator needs to obtain the vehicle state parameter signal of the whole vehicle, and use the prescribed algorithm to calculate The rear wheel angle is output to drive the rear wheel steering actuator to control the rear wheel angle. [0003] However, in the prior art, a prescribed algorithm is used to calculate the rear wheel angle, which focuses on the control of the driver's somatosensory vehicle slip angle during the maneuvering process, which requires a large amount of vehicle state information to estimate the vehicle slip angle. The input...
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IPC IPC(8): B62D5/04B62D6/00B62D15/02B60W40/105
CPCB62D5/046B62D6/00B62D15/021B60W40/105B62D6/002B62D6/02B62D7/159B62D15/025
Inventor 禹真余景龙单帅苗为为王立军王君君
Owner CHINA FIRST AUTOMOBILE