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World Electric Vehicle Journal is published by MDPI from Volume 9 issue 1 (2018). Articles in this Issue were published by The World Electric Vehicle Association (WEVA) and its member the European Association for e-Mobility (AVERE), the Electric Drive Transportation Association (EDTA), and the Electric Vehicle Association of Asia Pacific (EVAAP). They are hosted by MDPI on as a courtesy and upon agreement with AVERE.
Open AccessArticle

Research on On-line Monitoring Methods of High Voltage Parameter in Electric Vehicles

China Automotive Technology And Research Center, No.218 Chenglin Road.Dongli District, Tianjin, 300162, China
Tianjin Qingyuan Electric Vehicle Co.Ltd, No.19, Xinye 5th Avenue, West Zone of TEDA, Tianjin, 300457, P.R. China
Author to whom correspondence should be addressed.
World Electr. Veh. J. 2010, 4(2), 232-237;
Published: 25 June 2010
PDF [397 KB, uploaded 18 May 2018]


Safety control and protection strategy of high-voltage system of electric vehicles include analysis of circuit condition before connection to high voltage terminal, transient current prevention for capacitive load, real-time monitoring and analysis of high-voltage system during operation, disconnecting strategy of high voltage terminals, vehicle dynamic safety and cooperative management of electrical systems, etc. Monitoring and analysis of some critical parameters of high voltage system such as insulation, electrical harness and connector condition are the basis and difficulties in high-voltage safety and protection. This paper presents several mathematical models of monitoring critical parameters, and experiments were also done to evaluate the model. Disadvantages of the commonly used calculation method are discussed. Single point insulation defect model is introduced and diagnosis method of multiple points defect is also discussed. To satisfy high voltage safety management system based on micro-controller, online diagnosis method of related parameters is studied. Hardware-in-loop (HIL) and complete vehicle experiment were conducted to prove the validity, response and reliability of the proposed method.
Keywords: high-voltage system; On-line monitoring methods; electric vehicles high-voltage system; On-line monitoring methods; electric vehicles
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Zhao, C.; Li, Q. Research on On-line Monitoring Methods of High Voltage Parameter in Electric Vehicles. World Electr. Veh. J. 2010, 4, 232-237.

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