JOURNAL OF LIGHT INDUSTRY

CN 41-1437/TS  ISSN 2096-1553

Volume 33 Issue 6
November 2018
Article Contents
SHEN Yongpeng, LIU Ankang, CUI Guangzhao and et al. Design of online detection system for insulation resistance of electric vehicle based on unbalanced bridge[J]. Journal of Light Industry, 2018, 33(6): 82-91. doi: 10.3969/j.issn.2096-1553.2018.06.010
Citation: SHEN Yongpeng, LIU Ankang, CUI Guangzhao and et al. Design of online detection system for insulation resistance of electric vehicle based on unbalanced bridge[J]. Journal of Light Industry, 2018, 33(6): 82-91. doi: 10.3969/j.issn.2096-1553.2018.06.010 shu

Design of online detection system for insulation resistance of electric vehicle based on unbalanced bridge

  • Received Date: 2018-07-25
  • Aiming at the problems of low accuracy,long detection time and poor reliability of existing insulation detection system for electric vehicles,on the basis of studying the inherent mechanism of the measurement accuracy and reliability of insulation resistance for electric vehicles,replacing traditional electric relay by resistance partial measurement and optical control relay,an insulation resistance detection circuit of unbalanced bridge based on high-precision instrument amplifier was designed,then a four-step on-line calculation method of insulation resistance was proposed. Finally,a number of insulation resistance tests were completed for a light truck. The results showed that the detection system could achieve 5% insulation resistance measurement accuracy,and had the advantages of on-line detection and high reliability.
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