Steering wheel angle limitation and split wheel braking joint control system and method for automobile tire blowout

Abstract

The invention relates to a combined control system and method for limiting the steering wheel angle of an automobile tire puncture and split wheel braking based on a hydraulic power steering and ABS braking system, which is suitable for the safety auxiliary control after a tire puncture of an automobile. The invention content includes: the steering wheel angle Limits, split wheel brake control and light control. The invention can effectively prevent serious traffic accidents caused by improper operations such as oversteering and slamming on the brakes by the driver after a tire blowout. The present invention controls the solenoid valves installed on both sides of the hydraulic power steering cylinder to lock the steering wheel, limit the range of the turning angle, and unlock the steering wheel; The control of the brake pressure regulator realizes the split-wheel braking after a tire blowout and cooperates with the steering wheel to go straight and turn; at the same time, the tire blowout control ECU controls the start of the brake light and the double flashing signal light after the tire blowout to remind others to pay attention to avoidance.

Description

technical field [0001] The invention relates to a combined control system and method for limiting the rotation angle of a steering wheel with a tire blowout and wheel braking based on a hydraulic power steering and an ABS braking system. Background technique [0002] When the car is running on the highway, a high-speed tire blowout is one of the important factors that cause serious traffic accidents. After a car blows out at high speed, the driving resistance of the blown wheel increases sharply, the rolling radius decreases, and its adhesion to the ground decreases sharply. The large steering wheel angle can easily make the rim touch the ground and cause the tire rim to separate, and the body shakes after the blown tire , causing the driving direction to deviate from the original direction. At this time, the driver often turns the steering wheel greatly due to panic and slams on the brakes. These improper operations cause the high-speed vehicle to produce a sharp sideslip o...

AI Technical Summary

Problems solved by technology

After a car blows out at high speed, the driving resistance of the blown wheel increases sharply, the rolling radius decreases, and its adhesion to the ground decreases sharply. The large steering wheel angle can easily make the rim touch the ground and cause the tire rim to separate, and the body shakes after the blown tire , causing the driving direction to deviate from the original direction. At this time, the driver often turns the steering wheel greatly due to panic and slams on the brakes. These improper operations cause the high-speed vehicle to produce a sharp sideslip or rollover under the action of inertial force. Loss of direction control causing serious traffic accident

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