Vehicle road test brake performance detection system based on laser ranging

Abstract

The invention discloses a vehicle road test brake performance detection system based on laser ranging. The system comprises a laser range finder, a laser reflector, a camera and a processor, the laser range finder is connected with the processor, laser emitted by the laser range finder returns to the same after being reflected by the laser reflector, and the camera is connected with the processor. The detection system is simple to mount and operate, and can accurately and comprehensively detect the vehicle road test brake performance.

Description

technical field [0001] The invention relates to a braking performance detection system which adopts laser ranging technology and can be used for vehicle road test braking performance testing. Background technique [0002] With the development of the national economy and the improvement of national income and consumption levels, the use of vehicles is becoming more and more popular. To ensure safe production, the safe driving of the vehicle is an important link, and the braking performance of the vehicle is an important factor affecting the safe driving of the vehicle. According to the provisions of GB7258-1997: when the braking performance of the vehicle is questioned after the bench test, the road test test specified in the standard can be used for re-inspection, and the test result of the full-load road test shall prevail. The braking performance of the road test can be measured by braking distance, braking stability requirements (horizontal displacement of the vehicle du...

AI Technical Summary

Problems solved by technology

It is difficult to install the five-wheel instrument, and it has great restrictions on the vehicle type, so it cannot be used for braking performance testing of types with large changes in vehicle type.

The defect of the deceleration meter is that in the actual measurement, there is a deviation between the simulated acceleration-time curve and the actual acceleration-time curve, which leads to a deviation in the calculation of the braking distance; the vehicle may vibrate greatly during driving, which is likely to bring additional damage to the acceleration sensor. error; cannot measure horizontal displacement during vehicle braking

[0004] It can be seen from the above that in the prior art, there is no vehicle road test braking performance detection system that is easy to install and operate, and can accurately obtain the braking distance and braking stability.

Images