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Control apparatus for controlling regenerative operation of vehicle motor

  • US 20040227480A1
  • Filed: 11/18/2003
  • Published: 11/18/2004
  • Est. Priority Date: 11/20/2002
  • Status: Active Grant
First Claim
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1. A control apparatus for controlling a regenerative operation of a vehicle motor comprising:

  • a vehicle motor as a drive source of a vehicle;

    an energy storage device, including plural cells that are connected to each other in series, for storing regenerative energy generated by a regenerative operation of the vehicle motor;

    a total voltage measuring device for measuring a total voltage that is a sum of inter-terminal voltages of the plural cells;

    a cell voltage judgment device for determining whether the inter-terminal voltage of any one of the plural cells exceeds a predetermined regeneration limitation voltage;

    a total voltage estimating device for determining, when it is determined by the cell voltage judgment device that the inter-terminal voltage of any one of the cells exceeds the predetermined regeneration limitation voltage, an estimated total voltage which is defined as a total voltage at a time when the inter-terminal voltage of the ones of the cells reaches a regeneration prohibition voltage that is higher than the predetermined regenerative operation limiting voltage; and

    a control device for setting an amount of regeneration depending on a difference between the estimated total voltage determined by the total voltage estimating device and the total voltage measured by the total voltage measuring device.

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