Anti-rollover control method and device of automobile

Abstract

The invention discloses an anti-rollover control method and device of an automobile, and belongs to the field of an automobile safety control system. The anti-rollover control method comprises the following steps that I, an ABS (antilock brake system) is in external connection with an auxiliary brake system, the auxiliary brake system is provided with a pressure sensor for detecting hydraulic oil,an oil-inlet electromagnetic valve is arranged at the oil-inlet end of each wheel, an oil-outlet electromagnetic valve is arranged at the oil-outlet end of each wheel, a wheel right side electromagnetic valve and a wheel left side electromagnetic valve which are used for controlling the corresponding oil-inlet electromagnetic valves are connected to the auxiliary brake system, and shock absorbersare arranged between an automobile frame and an automobile body; and II, pressure in a hydraulic cylinder of each shock absorber is synchronously changed along with the change of the load of the automobile, when the pressure of the front shock absorber and the pressure of the rear shock absorber on one side of the automobile are both smaller than a minimum threshold value, braking is performed onthe front wheel and the rear wheel on the other side of the automobile, so that the automobile speed is reduced, and the automobile returns to a safety condition. According to the method disclosed bythe invention, under the situation that the automobile is overloaded, electricity supply to an automobile starting engine is forbidden, and when the automobile is subjected to rollover, unilateral braking is performed on the left side wheels or the right side wheels, so that the automobile returns to the safe travelling condition.

Description

technical field [0001] The invention belongs to the field of automobile safety control systems, and in particular relates to an automobile anti-rollover control method and its device, that is, by controlling the wheel braking force and the starter, it is possible to change the running of the automobile when the automobile is turning at a relatively high speed state, to avoid the dangerous situation of vehicle rollover. Background technique [0002] In the process of transportation, there are often tragedies of vehicles rolling over when turning, especially when large trucks roll over and flatten small vehicles, which cause huge injuries and economic losses to families and society. Modern large vehicles, such as muck trucks and cement mixer trucks, already have a high center of gravity. When fully loaded or even overloaded, the center of gravity of the vehicle will increase further. When turning at a high speed, the vehicle is prone to rollover. In a state of loss of control...

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Problems solved by technology

[0004] Through the analysis of the above-mentioned existing patents, it can be concluded that at present, the main method is to control the hydraulic cylinder or the suspension system to adjust the left and right roll angles of the car. This method plays a certain role for ordinary cars, but it is difficult for heavy vehicles system to change the tilt of the car to the left or right, because the load of the vehicle is too large, the pressure of the hydraulic system is high, and the car and the frame are separated, which brings safety hazards to both manufacture and use

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