Automatic parking control system and control method based on the system

Abstract

An automatic parking control system comprises a function switch, a detecting unit, a control unit and an executing unit, wherein the function switch controls starting of a parking function and controls the detecting unit to begin to detect information; the detecting unit detects the position of parking space, positions of barriers and the state information of an automobile of a user, and transmits the information to the control unit; parking maximum speed and parking accelerated speed are set in the control unit; the position of the automobile of the user relative to the parking space and the barriers can be obtained by the control unit according to a parking position and the position of the barriers; the optimal path of parking is calculated; then a reversing path and an advancing path during parking, a turning angle of the automobile on the reversing path and the advancing path and the time when braking begins are calculated according to the optimal path of parking, the parking maximum speed and the parking accelerated speed; the information is transmitted to the executing unit; and the automobile advances or reverses through the executing unit according to the preset turning angle, the time when braking begins and the parking maximum speed, so that the automobile can enter or exit from the parking space.

Description

technical field [0001] The invention relates to the technical field of automatic control of automobiles, in particular to an automatic parking control system and a control method based on the automatic parking control system. Background technique [0002] With the development of science and technology, more and more cars have entered our lives. With the increase of cars, the parking problem of cars has also brought more and more troubles to people. Semi-automatic parking technology is a relatively common control technology used on vehicles to facilitate parking. It detects the distance and angle between the vehicle and surrounding obstacles through the radar around the vehicle body, and then calculates the parking / parking position through the control system. The driving trajectory required for parking out of the parking space. The car needs to drive forward and backward many times, and finally completes the operation of parking in / out of the parking space. In each forward or...

AI Technical Summary

Problems solved by technology

When the obstacle distance is relatively close, if the driver brakes late or fails to take braking measures, the car will have the potential danger of scratching or colliding with surrounding obstacles; further, in order to ensure parking safety, semi-automatic parking The car has a speed limit. During parking, if the speed is too fast, the semi-automatic parking system will automatically exit, resulting in parking failure. For example, the parking speed is generally lower than the idling speed of the vehicle engine, even if the driver is If you do not step on the accelerator pedal during parking, the vehicle speed will still be too high, resulting in interruption or failure of parking. This requires the driver to continuously step on the brake pedal to brake during parking to ensure the smooth completion of parking.

When the car is moving forward or backward, it is difficult for the driver to know when to slow down, so the parking operation cannot be done well

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