Grounding chasis in the electric vehicle

  1. what will happen if I ground my 12v(low voltage system) and 144v(high voltage system) to a common ground?
  2. jcsd
  3. Simon Bridge

    Simon Bridge 15,261
    Science Advisor
    Homework Helper
    Gold Member

    If it is a genuine ground - then they will both be grounded.
    If not then the common "ground" rail acts as a reference voltage for both low and high voltage systems.
    A lot will depend on how your car is wired though. You can probably sketch out the resulting circuit diagram.
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