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Electric motor drive apparatus, hybrid vehicle with the same and stop control method of electric power converting device

  • US 8,111,026 B2
  • Filed: 01/18/2007
  • Issued: 02/07/2012
  • Est. Priority Date: 02/06/2006
  • Status: Active Grant
First Claim
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1. An electric motor drive apparatus comprising:

  • a capacitance element smoothing a DC voltage;

    an electric power converting device performing electric power conversion between said capacitance element and at least one electric motor;

    an abnormality sensing device sensing an abnormality relating to said capacitance element, and providing a signal being activated when the abnormality is sensed;

    a control device activating and providing a shutdown permission signal for permitting shutdown of said electric power converting device at least before said abnormality sensing device senses the abnormality; and

    a shutdown circuit activating a shutdown signal instructing shutdown of said electric power converting device and providing the shutdown signal to said electric power converting device when the signal provided from said abnormality sensing device becomes active while said shutdown permission signal is active.

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