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Control method and device for four-wheel steering system of vehicle

A four-wheel steering and control method technology, which is applied to automatic steering control components, vehicle components, steering mechanisms, etc., to achieve the effect of improving accuracy

Active Publication Date: 2021-12-17
SAIC MOTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, there is currently a lack of a four-wheel steering control scheme that is applied to mass-produced vehicles and considers all operating conditions

Method used

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  • Control method and device for four-wheel steering system of vehicle
  • Control method and device for four-wheel steering system of vehicle
  • Control method and device for four-wheel steering system of vehicle

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Embodiment Construction

[0058] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0059] In this application, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes none. other elements specifically listed, or also include elements inherent in such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "com...

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PUM

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Abstract

The invention provides a control method and device for a four-wheel steering system of a vehicle, and the method comprises the steps: recognizing the operation condition of a vehicle through the motion information of the vehicle, and calculating an expected rear wheel steering angle of the vehicle under the operation condition; and controlling the four-wheel steering system according to the actual rear wheel rotation angle obtained through amplitude limiting of the preset rear wheel rotation angle allowable range and the preset rear wheel rotation speed allowable range. The control scheme of the vehicle four-wheel steering system provided by the invention has adaptability to all working conditions of mass-produced vehicles, so that the precision of four-wheel steering control is improved.

Description

technical field [0001] The invention relates to the technical field of automobiles, and more specifically, to a control method and device for a four-wheel steering system of a vehicle. Background technique [0002] Compared with traditional front-wheel steering, four-wheel steering has many advantages. For example, it improves the steering performance of the car at high speeds and on slippery roads. Keep the driving stability of the car, the rear wheel steering is opposite to the front wheel steering direction at low speeds, and the turning radius is reduced. [0003] However, there is currently a lack of a four-wheel steering control scheme that is applied to mass-produced vehicles and considers all operating conditions. Contents of the invention [0004] In view of this, in order to solve the above problems, the present invention provides a control method and device for a four-wheel steering system of a vehicle. The technical solution is as follows: [0005] A control...

Claims

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Application Information

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IPC IPC(8): B60W30/045B62D6/00B62D7/14B62D101/00B62D137/00
CPCB60W30/045B62D6/002B62D7/14
Inventor 姬生远韩东冬潘越刘咏萱李晓迪徐灯福刘飞周中坚张成宝翁辉
Owner SAIC MOTOR