Vehicle anti-rollover system based on electric power steering device and control method

Abstract

The invention discloses a vehicle anti-rollover system based on an electric power steering device and a control method. The vehicle anti-rollover system based on the electric power steering device comprises a sensor module, the electric power steering device, a rollover evaluation unit and a rotation angle limiting unit; and the sensor module comprises a vehicle speed sensor, a steering wheel rotation angle sensor, a slope angle sensor, a vehicle body roll angle sensor and a yaw velocity sensor. According to the vehicle anti-rollover system based on an electric power steering device, a safe automobile wheel rotation angle is calculated by using a rotation angle limiting unit when a vehicle roll angle exceeds a threshold, the safe automobile wheel rotation angle is transmitted to an electronic control unit of the electric power steering device; through an angle closed-loop system, an overlarge automobile wheel rotation angle is reduced to a safety value so as to perform anti-rollover control; and therefore, rollover of an automobile during running is avoided; and the vehicle anti-rollover system based on the electric power steering device is suitable for any vehicle using the electric power steering device and possesses universal applicability.

Description

technical field [0001] The invention relates to the field of automobile active safety, in particular to a vehicle rollover prevention system and control method based on an electric power steering device. Background technique [0002] With the development of the economy, the number of cars in the world continues to grow, and cars have become an indispensable means of transportation in people's lives. In recent years, with the rapid development of transportation, road construction has been improved day by day, and the speed of automobiles has been continuously increased. However, the resulting traffic safety problems are becoming increasingly prominent, and the problems of casualties and property losses caused by traffic accidents are also becoming more and more serious. Therefore, while people pay attention to the comfort and economy of automobiles, they also turn their attention to safety. Vehicle rollover is an important issue affecting vehicle safety. Statistics from th...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a vehicle anti-rollover system and control method based on an electric power steering device for the defects involved in the background technology, so that the vehicle can avoid rollover during the steering process.

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