Tyre outline recognition device of car axle set oblique angle

Abstract

The invention relates to a tyre outline recognition device of a car axle set oblique angle, belonging to performance detection equipment for a headlamp for a motor vehicle. The recognition device mainly comprises double guide rails (A), a base assembly (B), a stroke device (C) and a laser distance measuring instrument (D), wherein the base assembly (B) and the stroke device (C) are fixedly connected into a whole; the base assembly (B) is arranged on the double guide rails (A) through base wheels (11); driving wheels in the base wheels (11) are driven by a driving mechanism; the laser distancemeasuring instrument (D) is arranged on the stroke device (C) and driven by a motor to do linear motion; and the start scanning point of the laser distance measuring instrument (D) is precisely positioned through a stay wire sensor. The invention aims to detect an included angle between the axes of a back shaft of the motor vehicle and guide rails of a light meter during detecting the headlamp, and further corrects the detection result of the headlamp.

Description

[0001] This application is a divisional application. [0002] Original application title: Tire profile identification method and device for axle deflection angle; [0003] Application number: 2009100671344; [0004] Application date: 2009.06.14 Technical field [0005] The invention belongs to automobile headlight performance testing equipment, and relates to a tire profile identification device for axle deflection angle, which is used to identify the tire profile of the axle deflection angle. It overcomes the current car body axis line on the vehicle detection line. The problem of inaccurate measurement results caused by the technical condition of headlights is benchmarked. The device measures the deflection angle in the driving direction and then corrects the headlight detection results. Background technique [0006] When driving at night, the technical condition of the headlights is very important to driving safety. In the newly released GB7258-2004 standard, it is pr...

AI Technical Summary

Problems solved by technology

[0007] The object of the present invention is to provide a kind of tread profile identification device of the axle shaft that puts the deflection angle with the driving direction as the headlight detection reference, and the device is used in conjunction with the tire profile recognition method of the axle shaft deflection angle to overcome the current The problem of inaccurate measurement results caused by detecting the technical condition of headlights based on the axis of the car body on the automobile inspection line

Images