Automobile short-distance braking control device and automobile short-distance braking control method using same

Abstract

The invention discloses an automobile braking control device and a method and provides an automobile short-distance braking control device and an automobile short-distance braking control method using the same; automobile tire pressure can be reduced rapidly in a short time, so that the area of each tire in contact with the ground is increased, the frictional force between the tires and the ground is increased, the braking distance of the vehicle is shortened, and the collision of the moving vehicle against front vehicles or barriers is avoided; the automobile short-distance braking control device and the automobile short-distance braking control method solve the technical problems that a vehicle braking at an emergent state in the prior art can stop after slipping for a long distance by inertia along the road surface, and the vehicle easily collides with the front vehicles or barriers, resulting in safety accidents. During the vehicle moving process, the space and the relative speed between the vehicle and the front vehicles or barriers are detected by using radar; when detecting that the collision can be avoided by using emergent braking, the radar sends a signal to an ECU (Electronic Control Unit); the ECU sends a signal to an intelligent tire deflation device after calculation and a deflation valve is opened by the intelligent tire deflation device to deflate, so that the tire pressure is reduced to a setting value in a short time.

Description

technical field [0001] The present invention relates to a braking control device and method for an automobile, in particular to a short-distance braking control device for an automobile that can stop at a short distance in an emergency so as to avoid collisions between the driving vehicle and the vehicle in front or an obstacle, and a short-distance braking control device for an automobile using the device. brake control method. Background technique [0002] In order to reduce the driving resistance of the vehicle, the tire pressure of the car is generally sufficient. At this time, the effective contact area between the tire and the ground is small, and the friction force is small. When the vehicle is stopped within a certain distance and time, it is precisely because of the small friction between the tires and the ground that the vehicle will coast along the road for a long distance after sudden braking before it can completely stop. When a vehicle or an obstacle collides,...

AI Technical Summary

Problems solved by technology

This device is to quickly remove the high-speed gear in the case of emergency braking of the vehicle, and change to the reverse gear to achieve short-term reverse in-situ friction, so as to reduce the forward sliding inertia of the vehicle, shorten the braking distance, and achieve driving safety. However, when driving in reverse gear at high speed, the damage to the vehicle will be greater, and even if the wheels are reversed, the contact area between the tire and the ground will not change, that is, the friction between the two will not change, so the vehicle It will also coast along the road surface for a long distance before it can come to a complete stop. Therefore, there is also the problem that the vehicle cannot stop the vehicle within a short distance and time, and it is very easy to collide with the vehicle or obstacle in front, causing safety accidents, etc. question

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