3D four-wheel aligner with no car pushing required

Abstract

The invention discloses a 3D four-wheel aligner with no car pushing required, comprising an image processing and analyzing general module, a vehicle position compensation module, a hardware parameter compensation module, two cameras and four target disks with regular patterns. The 3D four-wheel aligner with no car pushing required is capable of overcoming the defect that a 3D four-wheel aligner with car pushing required is complex in operation. A test can be carried out directly once the target disks are hung, with no car pushing required. The operation is very simple and the data is more accurate. In view of the characteristic that the 3D four-wheel aligner with car pushing required in the market is complex in cart pushing, the 3D four-wheel aligner with no car pushing required in the invention is capable of carrying out measurement directly once the target disks are installed, with no cart pushing required. The technology adopted in the 3D four-wheel aligner with no car pushing required in the invention is totally different from that of the 3D four-wheel aligner with car pushing required, wherein the 3D four-wheel aligner with car pushing required uses position change of the target disks before and after cart pushing to calculate vehicle four-wheel alignment data, while the 3D four-wheel aligner with no car pushing required in the invention uses space structure of the target disks to calculate the vehicle four-wheel alignment data.

Description

technical field [0001] The invention relates to the technical field of four-wheel alignment of automobiles, in particular to a 3D four-wheel alignment device that does not require a cart. Background technique [0002] The four wheel aligners that are common in the market now are mainly laser and 3D, and others include PSD and CCD. [0003] The PSD four-wheel aligner is an old-fashioned traditional four-wheel aligner. It uses the characteristic that the laser beam propagates in a straight line in the air. The main accessories of the equipment are four sensors, each of which can receive and emit laser light, and the car can carry out During the four-wheel alignment monitoring, four sensors are hung on the four tires, the laser of the sensor on the left hits the sensor on the right, and the photosensitive part of the sensor converts the light signal into a position signal and inputs it to the computer to complete the positioning Monitoring, in the same way, the laser light of ...

AI Technical Summary

Problems solved by technology

A total of two push carts are required, because the size of the car tires is different, so the tire diameter is different, so the cart distance is different (the cart tires rotate about 20°), if the cart is not in place, or has been pushed, you need to Continue to push until it reaches the desired position, so the operation is very complicated,

[0005] The 3D four-wheel aligner on the market needs to be pushed back about 20° and then forward about 20° when doing car four-wheel alignment. If the push is not in place, it needs to be pushed back and forth multiple times. The operation is complicated and the data is not accurate Through this kind of artificial cart moving back and forth, and through the change of the front and rear positions of the car body, the four-wheel alignment data can be obtained. It can be pushed well in a short time of about 5 minutes, but it may not be pushed well in a long time of more than half an hour, and it cannot be done. tire compensation

Images