SOC estimation system
JP2024175444AInactive Publication Date: 2024-12-18TOYOTA MOTOR CO LTD
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Patent Information
- Application Number
- JP2023093236
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-06-06
- Publication Date
- 2024-12-18
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
To highly accurately estimate an SOC in between a fully charged state and a completely discharged state of a secondary battery.SOLUTION: An SOC estimation system includes: a first secondary battery; a second secondary battery which is connected in series to the first secondary battery, and in which a voltage change at the time of charge and discharge is larger than in the first secondary battery; and a controller for estimating an SOC of the first secondary battery on the basis of an SOC-OCV characteristic of the second secondary battery.SELECTED DRAWING: Figure 1
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