Safety driving control and rescue system for wheel diameter variation and high-speed tire burst

Abstract

The invention relates to a safety driving control and rescue system for wheel diameter variation and high-speed tire burst. The safety driving control and rescue system for wheel diameter variation and high-speed tire burst comprises a real-time monitoring module, an analysis and processing module, a central control unit and a wheel braking control module, wherein the real-time monitoring module is used for detecting rolling diameter of each wheel; the analysis and processing module is used for processing effective wheel diameter height variation amount; the central control unit is used for judging whether each wheel is in effective rolling radius variation or tire burst according to the effective wheel diameter height variation amount of each wheel transmitted by the analysis and processing module; and after the central control unit judges that one wheel is in variation and particularly in tire burst, the wheel braking control module controls a braking device to apply braking force different in magnitude in different acting time to each wheel according to the effective wheel diameter difference of two coaxial wheels when a vehicle is in the state of linear driving or curve driving so as to coordinate with control on engine driving force and further control real-time proceeding speed of each wheel. Therefore, the vehicle in wheel diameter variation or high-speed tire burst can be kept in an 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. During the driving 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 h...

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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