Test system of driving motor of electric vehicle based on virtual instrument

In order to satisfy the performance test requirements of driving motor system of electric vehicle, a test platform is established based on driving motor characteristic analysis. Virtual instrument technology is also used in this test system design. A hardware construction based on PXI bus is built up. Test software based on project management and hierarchy configuration is written. The test system makes full use of the flexibility, compatibility and reusability of virtual instrument, and can realize multi - channel parallel, high speed data acquisition in motor test. This test system was used in practical experiment successfully; the objectivity and automation in test process are improved remarkably. Experiment result shows that this test system has preferable value in technique research and application.