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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, safety accidents, etc., and achieve the effect of reducing the accident rate, improving safety, and reducing the probability of departing from one's own lane.

Active Publication Date: 2020-07-31
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, so as to ensure 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 th...

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Abstract

The invention provides a vehicle steering control method and device. The mapping relation between a vehicle speed and a steering angle limit value is stored in advance, and after a vehicle enters an intelligent driving mode, the steering angle limit value corresponding to the real-time vehicle speed is determined, and the steering angle of the vehicle is controlled within the steering angle limitvalue. Due to the fact that the higher the vehicle speed is, the smaller the corresponding steering angle limit value is, when an electronic and electrical system breaks down, the vehicle is emergently braked and parked in the lane, the probability that the vehicle deviates from the lane of the vehicle is reduced, the accident rate of the intelligent driving vehicle is reduced, and the safety of the intelligent driving vehicle is improved.

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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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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