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Study on the Vehicle Tire Blow-out Safety Control Method and System

Author: QinLiFeng
Tutor: ChenZuo
School: Beijing Forestry University
Course: Vehicle Engineering
Keywords: Tire Tire pressure monitoring system Flat tire alarm Tire blowout control
CLC: U463.341
Type: Master's thesis
Year: 2011
Downloads: 123
Quote: 1
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Abstract


The puncture greatly affect the security of the vehicle , and how to reduce or prevent puncture hazards have become an important research topic . Flat tire safety control system as an important application of the safety of the driver assistance systems research is of great significance for improving traffic safety , the promotion of intelligent traffic system in the development of our country . For domestic research in this area many in the experimental stage , and system availability , integration , established alarm and control system structure the puncture test car based on a domestic platform , and be involved in key technology studied. Firstly, based on survey research status analysis of the reasons for a flat tire the complex tire damage occurred , summarizes the characteristics of the movement of the vehicle after the puncture , theory of puncture vehicle stability control . Linear quadratic optimal control (LQR) method on the basis of the two degree of freedom model of vehicle dynamics control torque required to puncture vehicle size calculation provides the basic tire blowout control strategy design basis. Secondly , according to the parameters of a domestic sedan vehicle in Carsim car vehicle dynamics model , and the this Carsim vehicle model puncture vehicle dynamics simulation , and analysis of simulation results of the wheel after a puncture . provides a basis for the development of a flat tire safety control system . Target to puncture alarm and control system functions , determine the system overall technical program planning subsystem functions and requirements , and to develop a system development methods and processes . And experimental platform includes subsystems : the key technologies of the tire pressure monitoring system , the central control system , electronic vacuum booster , lateral control system and CAN bus communication exploration and study, so that the platform has a good reliability and scalability . Finally, the test results under the a different tire temperature and pressure environment , summed up the yaw rate variation , to explore how to establish a puncture alarm threshold control threshold and decision-making algorithm . Completion of the longitudinal control system experiments puncture in setting working conditions , and the experimental results were analyzed and discussed , that flat tire safety control system for a flat tire vehicles can play a certain role in the auxiliary control .

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CLC: > Transportation > Road transport > Automotive Engineering > Automotive structural components > Travel System > Wheel > Tire
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