Vehicle steering control method and device

A steering control and vehicle technology, applied in the field of vehicles, can solve problems such as easy deviation from one's own lane and safety accidents, and achieve the effect of reducing the accident rate and improving safety.

Active Publication Date: 2021-11-09
SAIC MOTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after entering the intelligent driving mode and the vehicle speed is high, if the electronic and electrical system fails during the steering process of the vehicle, even if emergency braking is adopted, it is easy to deviate from its own lane and cause a safety accident

Method used

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  • Vehicle steering control method and device
  • Vehicle steering control method and device
  • Vehicle steering control method and device

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Embodiment Construction

[0051] The invention adds the function of limiting the turning angle in the steering control system, that is, in the intelligent driving mode, the greater the vehicle speed, the smaller the allowed turning angle of the vehicle, thereby ensuring that the vehicle enters a safe state through emergency braking and parking in the lane.

[0052] 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.

[0053] The vehicle steering control method provided by the present invention is applied to the electric power steering system on t...

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Abstract

The vehicle steering control method and device provided by the present invention store the mapping relationship between the vehicle speed and the limit value of the corner in advance, and after the vehicle enters the intelligent driving mode, determine the limit value of the corner corresponding to the real-time vehicle speed, and control the corner of the vehicle at the limit value of the corner within. Since the higher the vehicle speed, the smaller the corresponding corner limit, so that when the electronic and electrical system fails, the vehicle can achieve emergency braking and parking in the lane, reducing the probability of the vehicle deviating from its own lane, thereby reducing the risk of intelligent driving vehicles. The accident rate improves the safety of smart driving vehicles.

Description

technical field [0001] The present invention relates to the field of vehicles, more specifically, to a vehicle steering control method and device. Background technique [0002] EPS (Electric Power Steering) is a power steering system that relies on an electric motor to provide auxiliary torque. EPS judges whether power assistance is needed based on information such as the steering torque, direction of rotation, and driving speed applied to the steering wheel by the driver; Command to generate auxiliary torque, and the steering torque applied by the driver to the steering wheel together to overcome the steering resistance torque, so as to achieve power steering. [0003] In smart drive mode, EPS provides full torque to steer the vehicle without driver control. However, after entering the intelligent driving mode and the vehicle speed is high, if the electronic and electrical system fails during the steering process of the vehicle, even if emergency braking is adopted, it is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D6/00B62D119/00B62D137/00
CPCB62D6/00
Inventor 王栋宇高丽萍张友夏冰费敏李雁
Owner SAIC MOTOR
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