Automobile switch testing device and method

Abstract

The invention discloses an automobile switch testing device and method. The device includes an upper computer, a lower computer connected to the upper computer and a marking machine, a display screenis disposed on the upper computer, the lower computer includes a short circuit testing plate and a product performance testing plate, and the product performance testing plate includes a product connection detection circuit, a pressure drop detection circuit, a signal conduction detection circuit, a CAN / LIN / RS232 / RS485 communication signal detection circuit and an unqualified product control circuit; the short circuit testing plate and the product performance testing plate are in communication with each other through a CAN bus. The switch testing device also includes a relay, and a to-be-detected product is connected to the short circuit testing plate and the product performance testing plate through the relay. The switch testing device can effectively solve the problems that existing automotive switch testers can only be used for testing one type of products and cannot be in common use, during a short circuit test, sample data can only be manually tested in advance to solidify a datarange into a program, and thus the test is complicated. During manufacturing of a testing platform, a single chip microcomputer is utilized to conduct a sampling test, then a test result is displayedby an LED lamp at last, and therefore the problem that since there are too many indicator lights on a testing box, inconvenience is brought to long-time testing is solved.

Description

technical field [0001] The invention relates to an automobile switch testing device and a testing method. Background technique [0002] At present, automotive switches mainly include functional switches and combination switches, and the products need to be strictly tested during the production process. The testing of some products with communication is more stringent and complicated, basically a special test bench is made for each product for testing. For this type of special test bench with communication, the production cost is relatively high, the production cycle is long, and the maintenance is troublesome. With the rapid development of automotive electronic technology and the increase of communication products, there is a need for a universal test device designed to better meet the needs of automotive switches. [0003] The existing special test bench has the following defects: 1. Only one product can be tested and cannot be used universally; 2. During the short-circui...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is a kind of automobile switch testing device and testing method, solves the problem that the existing automobile switch testing device can only test a kind of product, can't be used universally; During short-circuit test, can only manually test the sample data in advance, and the data range is solidified to In the program, the test is more troublesome; the test bench is made by using a single-chip microcomputer for sampling and testing, and finally displayed through LED lights. There are too many lights on the test box, which is not conducive to long-term testing.

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