Elevator battery charging control

  • US 4,456,097 A
  • Filed: 10/12/1982
  • Issued: 06/26/1984
  • Est. Priority Date: 10/12/1982
  • Status: Expired due to Term
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First Claim
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1. An elevator comprising:

  • a battery,a car,a motor powered by the battery for propelling the car,a motor control for controlling motor operation to charge the battery under certain car motion conditions,characterized by;

    a power dissipating load,means for sensing the battery voltage and applying a load to the battery for a first interval of time if the voltage exceeds a predetermined level for a second interval of time in repeated succession.

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