×

Remaining capacity calculating device and method for electric power storage

  • US 20060220619A1
  • Filed: 03/27/2006
  • Published: 10/05/2006
  • Est. Priority Date: 03/29/2005
  • Status: Active Grant
First Claim
Patent Images

1. A remaining capacity calculating device for electric power storage, the device comprising:

  • a reference remaining capacity calculating unit that calculates a remaining capacity based on an open-circuit voltage of an electric power storage as a reference remaining capacity;

    a capacity difference calculating unit that calculates a capacity difference between the reference remaining capacity calculated by the reference remaining capacity calculating unit and a remaining capacity finally calculated as a remaining capacity of the electric power storage;

    a proportional-integral controlling unit that calculates a proportional correction amount and an integral correction amount of a proportional-integral control with the reference remaining capacity as a target value, according to the capacity difference; and

    a remaining capacity calculating unit that calculates the final remaining capacity of the electric power storage, according to the proportional correction amount and the integral correction amount calculated by the proportional-integral controlling unit.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×