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Control method and device for preventing rollover of automobile in high-speed state

A kind of automobile, high-speed technology, applied in the direction of vehicle components, transportation and packaging, steering mechanism, etc., can solve the problems of stall, prone to sideslip, rollover, increased resistance of wheels, etc., to achieve small changes, convenient modification, and reduce casualties rate effect

Pending Publication Date: 2019-10-15
NANJING VOCATIONAL UNIV OF IND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the car steering is realized by the deflection of the front wheels of the car. When the steering angle of the car is too large, the resistance on the wheels of the car increases, and risks such as sideslip and rollover are prone to occur, especially when the car is running at high speed. Turning at a large angle can easily cause stalls, sideslips, rollovers and other accidents

Method used

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  • Control method and device for preventing rollover of automobile in high-speed state
  • Control method and device for preventing rollover of automobile in high-speed state
  • Control method and device for preventing rollover of automobile in high-speed state

Examples

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Embodiment 1

[0027] Embodiment 1: Reference figure 1 , a control method for preventing rollover of an automobile at a high speed, comprising the following steps:

[0028] Detect vehicle speed;

[0029] When the speed of the vehicle exceeds the high speed V, the steering angle of the vehicle is detected;

[0030] When the steering angle of the vehicle exceeds the dangerous steering angle Ψ, the vehicle is braked.

[0031] Wherein, the high-speed driving speed V is the minimum speed at which the vehicle is prone to rollover accidents. When the vehicle speed exceeds the high-speed running speed V, it is defined as high-speed driving. In this state, when the vehicle turns sharply, the steering angle is excessive, and the vehicle prone to rollover. It can be understood that the high-speed driving speed V is different for different models of vehicles, and the high-speed driving speed V is smaller for vehicles with heavy weight and high center of gravity; on the contrary, for vehicles with sma...

Embodiment 2

[0036] Embodiment two: reference figure 2 , a device for preventing rollover of an automobile at high speed, comprising:

[0037] The speed detection module is used to detect the speed of the vehicle;

[0038] The steering angle detection module is used to detect the steering angle of the vehicle;

[0039] a brake module, used for braking the vehicle;

[0040] The speed detection module, the steering angle detection module and the braking module are all connected to the vehicle ECU.

[0041] When the speed of the vehicle exceeds the high-speed speed V, the steering angle of the vehicle is detected by the steering angle detection module; when the speed of the vehicle exceeds the high-speed speed V and the steering angle of the vehicle exceeds the dangerous steering angle Ψ, the vehicle is braked by the braking module , reducing the risk of vehicle rollover at high speed. High-speed driving speed V is the minimum speed at which the vehicle is prone to rollover accidents. Wh...

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PUM

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Abstract

The invention discloses a control method and device for preventing rollover of an automobile in a high-speed state, and belongs to the technical field of automobile driving safety. The control methodcomprises the following steps that the traveling speed of the automobile is detected, when the automobile traveling speed exceeds the high-speed driving speed V, the automobile steering angle is detected, and when the automobile steering angle exceeds the dangerous steering angle psi, the automobile is braked. When the automobile runs at a high speed, the steering angle of the automobile is detected, and if the automobile steering angle exceeds the the dangerous range, the automobile is braked, and the risk of rollover of the automobile in a high-speed state is reduced. The invention further provides a device for preventing rollover of the automobile in the high-speed state.

Description

technical field [0001] The invention relates to the technical field of automobile driving safety, in particular to a control method and device for preventing rollover of an automobile at high speed. Background technique [0002] Most of the car steering is realized by the deflection of the front wheels of the car. When the steering angle of the car is too large, the resistance on the wheels of the car increases, and risks such as sideslip and rollover are prone to occur, especially when the car is running at high speed. Steering at a large angle can easily cause accidents such as stalls, sideslips, and rollovers. In many traffic accidents, it is not uncommon for the vehicle to start due to being hit or the driver oversteering while driving at high speed. Contents of the invention [0003] The invention provides a control method and device for preventing rollover of a vehicle at high speed, which has the advantages of protecting the vehicle from rollover due to excessive s...

Claims

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Application Information

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IPC IPC(8): B60W30/04B62D15/02
CPCB60W30/04B62D15/025B60W2510/20
Inventor 潘纪伟丁继斌贺胜男周孟瑶
Owner NANJING VOCATIONAL UNIV OF IND TECH
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