Control method for parking auxiliary system

Abstract

The invention discloses a control method for a parking auxiliary system, and the method comprises the following steps that A, a supersonic radar works to emit a supersonic wave, and a control unit receives echo intensity signal and the information of distance between an obstacle and a vehicle; B, the control unit judges whether the distance between the obstacle and the vehicle is less than a preset threshold value or not: switching to step C if the distance between the obstacle and the vehicle is less than the preset threshold value, or else switching to step F; C, the control unit judges whether the echo intensity is greater than a preset threshold value or not: switching to step D if the echo intensity is greater than the preset threshold value, or else switching to step F; D, the control unit judges the features of the current obstacle: switching to step F if the current obstacle is judged to be an object lower than a road surface, or switching to step F if the current obstacle is judged to be an object higher than the road surface; E, an alarm signal is transmitted when the current obstacle is an effective obstacle; F, no alarm signal is transmitted if the current obstacle is an ineffective obstacle. The method achieves the accurate judgment of whether the obstacles on a pebble road surface or other obstacles lower than the road surface are ineffective obstacles or not, andachieves the accurate and effective early warning of the obstacles.

Description

technical field [0001] The invention belongs to the technical field of intelligent parking, and in particular relates to a control method of a parking assistance system. Background technique [0002] In recent years, with the process of automobile industrialization, the number of domestic automobiles has continued to rise. For the only parking spaces currently available, vehicles often deviate from parking due to human factors such as poor driving skills and bad parking habits. This will often increase the difficulty of parking for other cars, resulting in accidents such as collisions and frictions. In response to the above situation, various intelligent parking assistance systems have emerged as the times require. During the installation and use of parking assistance systems, due to the poor consistency of the installation angle and sensitivity of ultrasonic sensors, accurate calibration cannot be performed. For this reason, there must be strict requirements on the height ...

AI Technical Summary

Problems solved by technology

However, the workload of the loading test process is heavy, and the risk of false alarms is high. It cannot ensure that the installation height and angle during the test must be suitable for the actual road surface. On the other hand, the product cannot meet the needs of intelligence.

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