Rollover prevention device for bus based on aerodynamics and working method thereof

Abstract

The invention discloses a rollover prevention device for a bus based on aerodynamics and a working method thereof. The device comprises a vehicle-mounted computer ECU, a vehicle speed sensor, a steering wheel angle sensor, a steering wheel angle acceleration sensor and a bus roof turbulence device, wherein the vehicle-mounted computer ECU is respectively connected with the vehicle speed sensor, the steering wheel angle sensor, the steering wheel angle acceleration sensor and the bus roof turbulence device via data lines; the bus roof turbulence device comprises a left turbulence channel and a right turbulence channel respectively installed on two sides of a bus roof. According to the device provided by the invention, a rollover is judged via the vehicle-mounted computer ECU, then an upsetting moment generated by rollover is counteracted by changing opening and closing states of the left and right turbulence channels of the bus roof turbulence device, and thus the purpose of preventing rollover is achieved. According to the device and the method provided by the invention, a rollover prevention concept under traditional concepts is integrated with a modern electronic control system, rollover prevention control is performed from the aspect of body aerodynamics, and the control mode is more direct and effective.

Description

technical field [0001] The utility model relates to the safety technology of operating passenger cars, in particular to an anti-rollover device for passenger cars and a working method thereof. Background technique [0002] With the rapid development of my country's economy, the automobile industry and transportation industry have also made significant progress. Traditional passenger cars such as city buses, suburban shuttle buses, tourist buses and school buses have been greatly improved in terms of passenger capacity and ride comfort. But, because there are more and more cars on the road; and along with the improvement of the road network, the speed of the car is also greatly improved, which will very likely cause car accidents. At the same time, because of the special situation that the operating passenger vehicles are large and often carry a large number of passengers, when a traffic accident occurs, it will usually cause serious loss of life and property, so the driving...

AI Technical Summary

Problems solved by technology

At present, most commercial passenger cars mainly use differential braking to reduce the tendency of rollover, and change the braking force on one or several wheels by controlling the brake cylinder oil pressure to prevent rollover, but this method has certain limitations. For different passenger cars, the structure and parameters of the braking system are different, and problems such as insufficient brake fluid or circuit failure are prone to occur during the control process.

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