A fault data recording system design for hybrid electric vehicles |
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| Affiliation: | State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400030, P.R. China;State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400030, P.R. China;State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400030, P.R. China;State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400030, P.R. China;Chongqing Changan Automobile Limited Liability Company, Chongqing 400023, P.R. China;Chongqing Changan Automobile Limited Liability Company, Chongqing 400023, P.R. China;Chongqing Changan Automobile Limited Liability Company, Chongqing 400023, P.R. China |
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| Abstract: | A data recording system for fault diagnosis of hybrid electric vehicles was studied by taking the integrated starter and generator (ISG) hybrid electric vehicle as the investigation object. The fault diagnosis communication net was established using a CAN bus and a K line. As designed, the system hardware structure included a CPU processing module, a communication module, and a USB recording module. With the system requirements and characteristics in mind, special circuit design and analysis of USB mass storage module were carried out based on the hardware scheme and software design. In the running test, the fault data recording system worked stably, and the data was recorded integrally and correctly. At the same time, the online display data accurately reflected the vehicle's running status. |
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| Keywords: | hybrid electric vehicle data recording USB interface CAN Bus K line |
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