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BATTERY CAPACITY ESTIMATION APPARATUS AND METHOD, AND BATTERY MANAGEMENT APPARATUS PROVIDED WITH SAME AND METHOD THEREOF

  • US 20200132782A1
  • Filed: 09/18/2018
  • Published: 04/30/2020
  • Est. Priority Date: 10/11/2017
  • Status: Active Grant
First Claim
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1. A battery capacity estimation apparatus comprising:

  • a battery;

    a sensing unit connected to the battery to measure an OCV of the battery;

    an SOC estimation unit connected to the sensing unit to estimate an SOC of the battery using the OCV measured from the sensing unit;

    a memory unit configured to store data including the SOC and the OCV of the battery the memory unit being connected to the SOC estimation unit; and

    an operation unit connected to the SOC estimation unit and the memory unit, the operation unit being configured to calculate an SOC reduction degree according to a use voltage range change and re-calculate a changed SOC according to a changed use capacity.

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