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Devices and methods for the safe driving, charging and energy recovery operation of an electric vehicle

  • US 9,272,626 B2
  • Filed: 03/28/2012
  • Issued: 03/01/2016
  • Est. Priority Date: 03/30/2011
  • Status: Active Grant
First Claim
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1. An electrical protection and monitoring device in an electric vehicle for safe driving operation and also for safe charging of a rechargeable energy store of the electric vehicle with an unearthed IT network as an on-board electrical system and energy recovery operation from the energy store of the electric vehicle at a charging station, the electrical protection and monitoring device comprising:

  • (a) an insulation monitoring instrument connected to the on-board electrical system of the electric vehicle; and

    (b) a differential current monitoring instrument in the electric vehicle connected to a connected section of the power supply network to monitor a residual current.

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