US Patent 10527677 Battery state estimation apparatus
Patent 10527677 was granted and assigned to Denso on January, 2020 by the United States Patent and Trademark Office.
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A battery state estimation apparatus estimates a state of a secondary battery based on a battery model thereof. The battery model includes a DC resistance model, a reaction resistance model, and a diffusion resistance model. The apparatus includes a DC information storage section which stores information on the DC resistance related to temperature of the secondary battery, a reaction information storage section which stores information on the reaction resistance parameter related to the temperature, a diffusion information storage section which stores information on each of the first and second parameters related to the temperature, and a state estimation section which calculates the DC resistance, the reaction resistance parameter, and the first and second parameters from the stored information, by using the temperature as input, and estimates the state of the secondary battery based on the DC resistance, reaction resistance parameter, and first and second parameters.
US Patent 10527677 Battery state estimation apparatus
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