Wheel diameter change and high-speed tire burst safety driving control and rescue system

Abstract

A safety driving control and rescue system for wheel radius change and high-speed tire burst comprises: a real-time monitoring module for detecting a rolling wheel radius of each wheel, an analyzing and processing module for processing a height change of an effective wheel radius, a central control device (210) for determining whether an effective rolling radius change and tire burst occur in each wheel according to the height change of the effective wheel radius of each wheel transmitted from the analyzing and processing module, and a wheel braking control module. After the central control device determines that a change and particularly tire burst occur on a wheel, the wheel braking control module, according to an effective wheel radius difference between two coaxial wheels, controls a braking device to apply braking forces with different value and different action time to wheels in a state that the vehicle is driven in a straight line or driven in a curve road, so as to control a real-time traveling speed of each wheel in cooperation with regulation and control on a driving force of the engine, so that the vehicle in which change of the wheel radius or high-speed tire burst occurs maintains the original stable driving state.

Description

technical field [0001] The invention relates to a safe driving control and rescue system when the wheel diameter of the vehicle changes and the high-speed tire blows out. Background technique [0002] At present, the safe driving automatic control technology represented by ABS, TCS and ESP has been greatly developed. In the process, there is a lack of effective research on the driving safety control and rescue issues when the effective rolling radius of the tire changes significantly, and the technical solution for safe and effective vehicle countermeasures based on the characteristics of the wheel diameter change is almost blank. [0003] For example, on the expressway, if the front tire of the vehicle suddenly blows out, the effective rolling radius of the tire will change significantly. Cause a major traffic accident, even if the vehicle is equipped with the most advanced ESP system at this time, it will not have much effect on preventing the major accident harm caused b...

AI Technical Summary

Problems solved by technology

The right front wheel will surely obtain greater driving force due to the effect of the differential, and it will turn more distance than the left punctured wheel at the same time. In this way, the result of ESP participating in the control will instead instantly induce a sudden, The greater left bias force causes the vehicle with a flat tire to turn around and roll over. At this time, the ESP system will have control logic confusion, which will lead to wrong countermeasures and may lead to more serious accident hazards.

[0012] In addition, although there are some countermeasures for high-speed tire blowout accidents, they cannot fundamentally eliminate the rolling force and rollover risk caused by the high-speed driving of the blown-out vehicle, and cannot consider the driving characteristics when the wheel diameter changes, so it cannot be effectively implemented. For the problem of tire blowout rescue, the existing public technology cannot eradicate the rear-end collision accident caused by the tire blowout rescue process in the actual driving process

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