Virtual instrument-based motor control automatic testing system and method for electric automobile

Abstract

The invention provides a virtual instrument-based motor control automatic testing system and method for an electric automobile, wherein the system comprises an industrial personal computer and a CAN (controller area network) communication bus connected with the industrial personal computer, a test setting unit, a data processing unit, a result display unit and a database management unit which areall connected with the industrial personal computer, a data collecting unit respectively connected with a motor control circuit to be tested and the industrial personal computer, and a PXI (PCI Extensions for Instrumentation) communication card respectively connected with the industrial personal computer and the CAN communication bus; a programmable power supply is connected with the motor control circuit to be tested; and the motor control circuit to be tested is respectively connected with the data collecting unit and the CAN communication bus. The method comprises the steps of: selecting test items and setting parameters; collecting testing signals; analyzing and processing test data; displaying a testing result; and updating and managing a database. By the automatic testing system andmethod, the function detection and the collecting, processing and storing of the testing data of an electric automobile motor control circuit can be completed automatically; the synchronous sampling of the testing data is ensured; the automatic testing system and method have high testing precision and good the repeatability is good; the testing error is reduced; and the automatic level of the detection is improved.

Description

technical field [0001] The invention relates to an electric vehicle. In particular, it relates to a virtual instrument-based automatic test system and method for electric vehicle motor control that can accurately and efficiently determine the quality of a motor control circuit. Background technique [0002] As environmental protection and energy issues are increasingly concerned by countries all over the world, electric vehicles have developed rapidly under the promotion of national policies, financial support and technology, and the industrialization pattern is gradually taking shape. Vehicle motors and their control systems are key components of electric vehicles. Users must select a suitable test system to accurately and efficiently determine the quality of motor control circuits, and continuously improve related production processes through the analysis of test data. The traditional testing currently used mainly relies on manual testing, which has shortcomings such as l...

AI Technical Summary

Problems solved by technology

The traditional testing currently used mainly relies on manual testing, which has shortcomings such as long testing time, poor repeatability and synchronization of data processing, and low accuracy of test results, making it difficult to meet the requirements of mass production.

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