Device for early warning, active prevention, and active control of side tumbling of passenger vehicle at bend, and judgment method thereof

Abstract

The invention discloses a device for early warning, active prevention, and active control of the side tumbling of a passenger vehicle at a bend, and a judgment method thereof. The device comprises a digital signal processor, wherein the input end of the digital signal processor is connected with an image acquisition module and a signal acquisition module; the signal acquisition module is connected with a vehicle speed sensor through a data line P1; the output end of the digital signal processor is connected with a signal output module, a liquid crystal displayer, a storage harddisk and a warning module. According to the device and the method disclosed by the invention, a real-time vehicle speed signal is compared with a critical vehicle speed obtained through calculation by use of the signal processor, and according to the comparison result of the real-time vehicle speed signal and the critical vehicle speed, the warning module indicates the situation of the vehicle speed for a driver by sound, so that the driver makes corresponding early warning of a side tumbling risk and takes a vehicle preparatory measure in advance; therefore, the purpose of actively preventing side tumbling is reached, and the casualty rate in accidents of the passenger vehicle is reduced; the combination of early warning and active prevention and control of side tumbling risks is realized, so that the improvement of the safety guaranteeing capability of highway passenger transportation enterprises in China is facilitated.

Description

technical field [0001] The invention belongs to the field of active safety of passenger transport vehicles, and relates to an early warning and main prevention and control device and a judging method for passenger vehicle curve rollover. Background technique [0002] Passenger vehicle rollover is a relatively common traffic accident. Excessive centrifugal force causes the vehicle to lose its driving stability and topple over. The proportion of rollover in traffic accidents is not high, but the casualty rate caused by rollover is much higher than the incidence of rollover accidents. Especially once the rollover of passenger vehicles occurs, serious casualties and economic losses often occur. [0003] Rollover usually occurs after the vehicle enters a curve, and the research and development of rollover warning or rollover warning at home and abroad often rely on the signal provided by the sensor and the preset threshold. When a certain value is reached, the anti-rollover sys...

AI Technical Summary

Problems solved by technology

Early warning and prevention and control measures are too late to provide enough time for the driver to react. Drivers are often nervous in the face of sudden warnings, and there is a certain risk of misjudgment or misoperation, which is easy to interweave with other vehicles and cause secondary accidents. ACCIDENT

Due to the high speed of current vehicles, especially highway vehicles, the existing anti-rollover technology has the following problems: first, there is no early warning of rollover risk sections; second, anti-rollover tendencies that may be required on risky sections The necessary vehicle preparations cannot be made before the operation; the third is that the calculation amount of the controller in the short moment before the danger is too large, and there are certain missed and false alarms; the fourth is that there is no record of the road ahead and the driver's operation behavior

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