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Steering angle correcting method, electric power steering system and vehicle

A technology of electronic power steering and steering angle, which is applied in the direction of power steering mechanism, steering mechanism, steering rod, etc.

Active Publication Date: 2018-02-16
BORGWARD AUTOMOTIVE CHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The EPS in the related art cannot solve the problem that the vehicle deviates from the driving route due to a tire blowout or other reasons during driving

Method used

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  • Steering angle correcting method, electric power steering system and vehicle
  • Steering angle correcting method, electric power steering system and vehicle
  • Steering angle correcting method, electric power steering system and vehicle

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Embodiment Construction

[0062] Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0063] Such as figure 1 Shown is a steering angle correction method according to an embodiment of the present disclosure. The method is applied to an electronic power steering system. The electronic power steering system includes a power assist motor for providing steering power. The method includes the following steps.

[0064] In step S11, the driving information of the vehicle is acquired, and the driving information is driving parameter information and / or driving image information;

[0065] In step S12, according to the driving information, it is determined whether the vehicle is in an abnormal steering state deviating from the driving route;

[0066] I...

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Abstract

The invention relates to a steering angle correcting method, an electric power steering system and a vehicle. The steering angle correcting method comprises the following steps of obtaining travellinginformation of the vehicle, wherein the travelling information is travelling parameter information and / or travelling image information; according to the travelling information, determining whether the vehicle is under an abnormal steering condition deviating from a travelling route; if yes, according to a current power assisting current of the vehicle, torque information of a current steering wheel, and current vehicle speed information, determining a target control signal, wherein the target control signal is used for controlling a power assisting motor to output a target power assisting torque to correct the deviation of the steering angle of the vehicle; and according to the target control signal, controlling the power assisting motor to output the target power assisting torque. Through the adoption of the steering angle correcting method disclosed by the invention, when the vehicle deviates from the travelling route, the power assisting motor can be controlled to output the targetpower assisting torque, so that the abnormal steering of the vehicle is effectively resisted, and the occurrence of accidents caused by that a driver does not correct the steering wheel in time is avoided.

Description

technical field [0001] The present disclosure relates to the field of vehicle automatic control, in particular, to a steering angle correction method, an electronic power steering system and a vehicle. Background technique [0002] According to statistics, a large part of the traffic accidents on the expressway is due to the fact that the driver does not correct the steering wheel angle in time when the vehicle deviates from the driving route, resulting in a collision. There are many reasons for the vehicle to deviate from the driving route, such as tire blowout, vehicle four-wheel alignment deviation, high-speed crosswind, uneven road surface, and these reasons are unavoidable. [0003] Electric Power Steering (EPS) is a steering system that directly relies on the power-assisted motor to provide steering assistance. Compared with the traditional hydraulic power steering system, EPS has the advantages of saving energy, protecting the environment, and improving the driver's d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/04B62D6/00B62D117/00B62D137/00B62D101/00B62D119/00
CPCB62D5/0463B62D5/0481B62D6/00
Inventor 张秀荣霍强
Owner BORGWARD AUTOMOTIVE CHINA CO LTD
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