Abstract
New standards in the automotive industry highlighted the situation of the actual operation of the alternator and a variety of harsh environment simulation limit test. Using new standards in the automotive industry as a guide, this article presents a virtual instrument based on the durability of automobile generator integrated test system. The design adopt virtual instrument technology in designing the system, Graphic language, LabVIEW is applied in writing measure-control program. The system uses a lot of features on LABVIEW, including Data acquisition, control of serials port, etc. Test implementation uses the host computer via RS232 and RS485 communication port and the data acquisition card, NI PCI- 6221, to control the frequency hybrid motor, temperature control box, electronic loads and other intelligent devices, and to simulate a variety of automotive alternator working conditions and real-time monitoring to monitor the status of generators. Using this system, two separate automobile alternators can be tested in terms of high-speed vehicle impact and high temperature durability test and electrical performance test and other tests at the same time. As a result, the generator speed measurement error is within 1%, the control error is within 2%, voltage and current measurement errors were within 0.5% and 0.4%, which meets the requirements.
Highlights
As a major essential of automobile parts, the automotive alternator provides power to the ignition coil and the electrical equipment, and charges the battery for the car
Power generation stability and durability is extremely important, and it comes the need for a compliant performance test system integrated generator, the generator quality and functional testing
With the development of the automobile industry in China, recent years there were many different types of integrated and intelligent automotive generator test platform. These test platforms generally provide only general performance test function generator, low efficiency of the test, and the measurement is limited to the general environment
Summary
As a major essential of automobile parts, the automotive alternator provides power to the ignition coil and the electrical equipment, and charges the battery for the car. Power generation stability and durability is extremely important, and it comes the need for a compliant performance test system integrated generator, the generator quality and functional testing. With the development of the automobile industry in China, recent years there were many different types of integrated and intelligent automotive generator test platform. These test platforms generally provide only general performance test function generator, low efficiency of the test, and the measurement is limited to the general environment. National Development and Reform Commission issued the "automotive alternator technology" conditions for industries QC/T 729-2005 as well as new standards developed by the Guangzhou Automobile Group. In order to improve the scalability automobile generator test system, accuracy and efficiency of the test objectives, a new automobile generator integrated durability test systems was put forward, mainly for the alternator
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