Automobile tire burst safety and stability control method

Abstract

The invention provides an automobile tire burst safety and stability control method used for manned and unmanned vehicles and based on vehicle braking, driving, steering and suspension systems and belongs to the field of automobile tire burst safety. According to the automobile tire burst safety and stability control method, tire burst judgment using a tire pressure detection mode, a state tire pressure mode and a steering mechanical state mode are established; an automobile tire burst safety and stability control mode, an automobile tire burst safety and stability control mode model, an automobile tire burst safety and stability control mode algorithm, a control structure and a control process are adopted; through tire burst control entering and exiting as well as normal and tire burst control mode conversion, vehicle braking, driving, steering, steering wheel rotation force and suspension balancing control are carried out in a coordinated manner to realize real or unreal tire burst process overlapped tire burst control; and under a condition that a tire burst process state and a tire burst wheel and vehicle motion state are suddenly changed, important technical barriers that thewheel and the vehicle are seriously unstable due to tire burst, the tire burst extreme state is hard to control and so on are broken through to solve the important long-term problem which troubles theautomobile tire burst safety at present.

Description

technical field [0001] The invention belongs to the field of automobile tire blowout safety Background technique [0002] Car tire blowout, especially on the expressway, is a vicious accident with high risk and high probability of occurrence. Car tire blowout safety is a major topic that has not yet achieved effective breakthroughs at home and abroad. Relevant technical literature retrieval It shows that the current technical solutions for this subject mainly include the following. First, Tire Pressure Monitoring System (TPMS). As a relatively mature tire pressure detection technology, this system is widely used in various vehicles. Relevant tests and technologies have shown that with the help of tire pressure monitoring, the probability of tire blowout can be reduced, but There is no strict corresponding relationship between tire blowout, tire pressure, and temperature-related parameters in the space-time domain, so TPMS cannot truly, real-time, and effectively solve the s...

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Problems solved by technology

Its four, automobile tire blowout safety control method and system (Chinese Patent No. 200810119655.5), this invention proposes a kind of technical scheme that "makes the vehicle maintain the original driving direction" by "steering auxiliary motor control", this scheme has no effect on the original tire blowout vehicle. The direction control has a certain effect. In the actual control process, only the original direction of the vehicle is controlled, and it is difficult to achieve the purpose of safe and stable control of the vehicle tire burst.

Fifth, tire blowout brake control system and method (Chinese Patent No. 201310403290), the system and method propose a method of wheel brake control through the difference signal of vehicle tire blowout and non-blowout wheel brake anti-lock control. technical solution, but the braking force involved in this solution does not take into account related technical problems and solutions such as wheel vehicle stability control, so it is difficult to achieve the purpose of vehicle tire burst safety control

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