Vehicle reversing trajectory correction method, device, equipment, medium and product

By constructing a distance matrix using ultrasonic radar and employing dynamic programming algorithms to correct the vehicle's reversing trajectory, the problem of accumulated tracking and reversing errors caused by wheel slippage and sensor errors has been solved, thereby improving the parking accuracy and control efficiency of mid-to-low-end models.

CN122143903APending Publication Date: 2026-06-05SHENZHEN DESAY SV AUTOMOTIVE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENZHEN DESAY SV AUTOMOTIVE CO LTD
Filing Date
2026-04-29
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing vehicle reversing tracking functions suffer from accumulated errors in trajectory calculation and correction technology when wheels slip or sensors malfunction, resulting in insufficient parking accuracy. This is especially problematic in low- to mid-range models where hardware costs and computing power consumption are excessively high.

Method used

By using ultrasonic radar to acquire real-time distance and position coordinate sequences, a distance matrix is ​​constructed. The target path is determined through a dynamic programming algorithm, and the reversing trajectory is corrected based on the deviation between real-time and historical position coordinates, thereby achieving real-time and precise tracking reversing control.

Benefits of technology

It improves the accuracy of reversing while tracking, reduces hardware costs and computing power requirements, avoids the problems of overcorrection in short distances and undercorrection in long distances, and achieves real-time and precise reversing control.

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Abstract

Embodiments of the present disclosure disclose a vehicle reversing trajectory correction method, device, equipment, medium and product, comprising: acquiring a real-time distance sequence and a real-time position coordinate sequence of a vehicle when performing a tracking reversing on a target section by using an ultrasonic radar, the real-time distance sequence including a real-time distance between the vehicle and each target obstacle; calculating a difference value between the real-time distance sequence and a historical distance sequence to construct a distance matrix; determining a target path by using a preset algorithm according to the distance matrix; determining a real-time position coordinate and a historical position coordinate corresponding to each path point in the target path respectively based on the real-time position coordinate sequence and the historical position coordinate sequence according to the target path; and correcting a current reversing trajectory based on a deviation of the real-time position coordinate and the historical position coordinate corresponding to each path point to determine a real-time reversing trajectory, thereby realizing real-time correction of a reversing error.
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