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Electrically powered vehicle

  • US 8,600,593 B2
  • Filed: 06/11/2008
  • Issued: 12/03/2013
  • Est. Priority Date: 07/04/2007
  • Status: Active Grant
First Claim
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1. An electrically powered vehicle that can be charged by an external power supply, comprising:

  • a power feed node electrically connected to said external power supply through a connection device;

    a power storage device for storing electric power to be used for generating vehicle drive force, configured such that it can be charged with electric power supplied by said external power supply;

    a switching element interposed in an electrical path from said power feed node to said power storage device;

    a control device operating by using electric power from an auxiliary power storage device provided separately from said power storage device, for controlling opening and closing of said switching element in correspondence with a period during which said power storage device is charged; and

    an internal power supply line for transmitting electric power from said external power supply, whereinsaid switching element is connected between said power feed node and said internal power supply line,said electric power consuming component includes a detector connected to said internal power supply line, for detecting whether electric power is supplied from said external power supply to said internal power supply line,all electric power consuming components mounted on said electrically powered vehicle being arranged to electrically be disconnected from said power feed node, as a result of opening of said switching element,said control device includesa charge start instruction unit for generating and instruction for requesting charge of said power storage device,a charge end determination unit for determining end of charge of said power storage device, andan opening and closing control unit for turning on said switching element in response to generation of said instruction for requesting charge and opening said switching element in response to determination as said end of charge,after power supply of said electrically powered vehicle is stopped, at least one prescribed timing to turn on said switching element is provided, andsaid charge start instruction unit generates said instruction for requesting charge when said detector detects electric power supply to said internal power supply line at said prescribed timing when said switching element was turned on.

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