Method for detecting and processing out-of-control speed of small unmanned special vehicle

Abstract

The invention discloses a method for detecting and processing out-of-control speed of a small unmanned special vehicle. Double rotating speed sensors are adopted to calibrate vehicle speed data and accurately obtain the vehicle speed when a vehicle turns, judgment errors are avoided, target values of a plurality of speed ranges are arranged, different threshold value intervals are set according to target values of different ranges, then vehicle speed control can be completed in a multi-time control and multi-time detection mode according to the current driving speed of the vehicle and the judgment condition that the vehicle speed is out of control, when the vehicle is still out of control after multi-time control, emergency braking is conducted, The vehicle speed out-of-control detection is more flexible and accurate, the speed control in the driving process is smoother, the vehicle operation and speed adjustment are smoother, and the vehicle speed out-of-control detection method can meet the intelligent application scene of automatic driving.

Description

technical field [0001] The invention belongs to the field of speed out-of-control detection systems, and relates to a detection and processing method for speed out-of-control of an unmanned small special vehicle. Background technique [0002] With the vigorous development of autonomous driving, traditional small special vehicles are also constantly seeking breakthroughs. At present, the mainstream traditional small special vehicle manufacturers respond to the wave of autonomous driving mostly by cooperating with autonomous driving research and development companies. Based on the addition of a control computer, automatic driving is realized. Since the control method of traditional small special vehicles is more of human control, it is easy to judge whether the vehicle is in a state of speed out of control, and then carry out corresponding control. However, the realization of speed out-of-control discrimination on the basis of automatic driving requires additional algorithm p...

AI Technical Summary

Problems solved by technology

[0003] The traditional speed out-of-control detection and processing method is to detect whether the real-time speed exceeds the set speed. If it exceeds a certain value, brake processing is adopted. This method has poor flexibility and accuracy, and it is difficult to meet the intelligent application scenarios of automatic driving. At the same time, the existing Most self-driving vehicles use a speed sensor, either installed on the left or on the right. When going straight, the speed of the left and right wheels is the same, but when turning, the speed of the left and right wheels is inconsistent. The speed obtained by the speed sensor is inconsistent with the real vehicle situation. The out-of-control judgment introduces errors. Therefore, an increase in safety strategy to solve the safety problems caused by speed out-of-control of unmanned small special vehicles in different scenarios such as uphill and downhill is imminent.

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