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Vehicle electric drive and power systems

  • US 8,680,795 B2
  • Filed: 06/03/2011
  • Issued: 03/25/2014
  • Est. Priority Date: 06/03/2011
  • Status: Active Grant
First Claim
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1. An automotive electric drive system comprising:

  • an electric power source;

    an electric machine; and

    a DC-DC power converter (i) electrically connected between the electric power source and the electric machine and (ii) including an inductor and a first switch each disposed in a different parallel current path connecting the electric power source and the electric machine, and second and third switches, wherein the first switch includes a terminal electrically connected between the inductor and the second switch and wherein the DC-DC power converter is configured to cause an input voltage to increase or decrease when the second and third switches are selectively turned on and off.

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