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Battery charging system and electric vehicle with battery charging system

  • US 5,952,813 A
  • Filed: 04/10/1998
  • Issued: 09/14/1999
  • Est. Priority Date: 04/14/1997
  • Status: Expired due to Fees
First Claim
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1. A battery charging system comprising:

  • a battery charger for charging a battery;

    a charging controller for controlling said battery charger;

    an external power supply for supplying electric energy to said battery charger to charge the battery; and

    a vehicle-carried battery for supplying electric energy to said charging controller;

    said charging controller comprising;

    failure detecting means for detecting a failure of said external power supply;

    temporary charging stopping means for controlling said charging controller to change from a normal power consumption mode to a low power consumption mode and temporarily stopping charging of the battery with said battery charger when a failure of said external power supply is detected by said failure detecting means;

    recovery-from-failure detecting means for detecting when said external power supply recovers from the failure; and

    charging resuming means for controlling said charging controller to change from the low power consumption mode to the normal power consumption mode and resuming charging of the battery with said battery charger when recovery of said external power supply from the failure is detected by said recovery-from-failure detecting means.

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