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Electric vehicle

  • US 8,563,151 B2
  • Filed: 06/02/2009
  • Issued: 10/22/2013
  • Est. Priority Date: 06/12/2008
  • Status: Active Grant
First Claim
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1. An electrically driven vehicle, comprising:

  • a battery mounted inside a vehicle interior;

    an air intake duct which is provided with a cooling fan, and which is adapted to provide the battery with cooling air from the vehicle interior;

    an air discharge duct arranged to discharge, into the vehicle interior, air which was warmed after cooling the battery;

    a battery state detector that detects a state of the battery;

    a ventilation mechanism which comprises an outside air introduction mechanism that introduces outside air into the vehicle interior, and which ventilates air inside the vehicle interior; and

    a controller that starts and stops the ventilation mechanism,characterized in that;

    the battery is a lithium ion battery;

    the electrically driven vehicle comprises a gas discharge passage through which gas emitted from the lithium ion battery under abnormal conditions of the lithium ion battery is discharged into the vehicle interior;

    the ventilation mechanism comprises a window glass drive mechanism that moves a window glass in the vehicle interior;

    the controller includes a ventilation mechanism starting means that starts the ventilation mechanism when the lithium ion battery is determined to be in an abnormal state when a value showing the state of the lithium ion battery detected by the battery state detector exceeds a predetermined threshold, said ventilation mechanism starting means comprising an outside air introduction starting means and a window opening starting means that starts opening of the window glass by the window glass drive mechanism; and

    the battery state detector is any one of or a combination of any one of;

    a voltage sensor installed in the lithium ion battery,a temperature sensor installed in the lithium ion battery,a gas sensor installed in the gas discharge passage, anda gas temperature sensor installed in the gas discharge passage.

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