Universal test tool for autobody electronic unit and working method thereof

Abstract

The invention discloses a universal test tool for an autobody electronic unit and a working method thereof. The universal test tool comprises an upper computer and a lower computer which are in communication through a USB connecting wire, wherein the lower computer further comprises a multi-channel digital input port, a multi-channel digital output port, an eight-channel pulse input port, an eight-channel PWM (Pulse-Width Modulation) output port, a two-channel CAN (Controller Area Network) bus interface, a two-path LIN (Local Interconnect Network) bus interface, a programmable controllable power supply, an embedded-type minimum system, a parallel-to-series interface and a series-to-parallel interface, wherein signals of the multi-channel digital input port are sent to the parallel-to-series interface; and the signals of the series-to-parallel interface are sent to the multi-channel digital output port. According to the invention, with different connection manners between different upper computer test software and tested units, not only is the test respectively for development process and production process of tested automotive electronic units realized by specific test software, but also different test software can be selected for the test of the different automotive electronic units.

Description

technical field [0001] The invention relates to the technical field of automobile electronics, in particular to a general test tool for an automobile body electronic unit and a working method thereof. Background technique [0002] In the design and development process of automobile body electronic units, it is very important to build a test platform for function verification and performance evaluation. It is the source of information feedback in the design iteration process and also to verify whether the body electronic units meet the functional requirements. important means. In the mass production process of body electronic units, it is necessary to carry out several functional tests and performance evaluations on the products produced to ensure product quality and meet the requirements of fast-paced production lines. As an important production management tool, test tooling can efficiently , Completely judge the production quality of the unit under test. [0003] The cons...

AI Technical Summary

Problems solved by technology

[0005] The existing embedded test tooling is generally developed for specific products and cannot be used for production testing of other products. Due to the characteristics of the single subunit of the body and the similarity of input and output interfaces, the test tooling of different body electronic units also has a certain degree of similarity. Due to the relatively long and difficult development cycle of the embedded software of the current test tooling, the test tooling designed separately for multiple body electronic units also has a certain degree of repetitive development.

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