Power supply device and vehicle including the same
First Claim
1. A power supply device comprising:
- a detection circuit that detects internal resistance, temperature, and SOC of a battery;
a memory circuit that stores record data and a predetermined SOC range as storage data, the record data being estimated standardized available output power at standard SOC and standard temperature at the detected internal resistance and temperature of the battery; and
a determination circuit that, when the internal resistance, the temperature, and the SOC of the battery are detected by said detection circuit, in a comparison between the detected SOC with the predetermined SOC range, which is stored in the memory circuit, if it is determined that the detected SOC of the battery falls within the predetermined SOC range, estimates standardized available output power of the battery at the standard SOC and the standard temperature at the detected internal resistance and temperature of the battery, which are detected by the detection circuit, and the record data, which is stored in the memory circuit.
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Accused Products
Abstract
A power supply device according to the present invention includes a detector, a memory, and a determinator. The detector detects internal resistance, temperature, and SOC of a battery. The memory stores record data and a predetermined SOC range as storage data. The record data is used for estimating standardized available power at standard SOC temperature corresponding to the detected internal resistance and temperature. If the detected SOC of the battery falls within the range, the determinator estimates standardized available power at the standard SOC and temperature based on the detected internal resistance and temperature, and the record data. When the internal resistance, temperature, and SOC are detected by the detector, if the detected SOC falls within the range, the determinator estimates standardized available power at standard SOC temperature based on the detected internal resistance and temperature, and the record data.
19 Citations
11 Claims
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1. A power supply device comprising:
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a detection circuit that detects internal resistance, temperature, and SOC of a battery; a memory circuit that stores record data and a predetermined SOC range as storage data, the record data being estimated standardized available output power at standard SOC and standard temperature at the detected internal resistance and temperature of the battery; and a determination circuit that, when the internal resistance, the temperature, and the SOC of the battery are detected by said detection circuit, in a comparison between the detected SOC with the predetermined SOC range, which is stored in the memory circuit, if it is determined that the detected SOC of the battery falls within the predetermined SOC range, estimates standardized available output power of the battery at the standard SOC and the standard temperature at the detected internal resistance and temperature of the battery, which are detected by the detection circuit, and the record data, which is stored in the memory circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification
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- Resources
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Current AssigneeSanyo Electric Company Limited (Panasonic Holdings Corporation)
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Original AssigneeSanyo Electric Company Limited (Panasonic Holdings Corporation)
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InventorsHayashida, Atsushi, Inui, Shinya
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Primary Examiner(s)Leykin, Rita
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Application NumberUS14/131,741Publication NumberTime in Patent Office1,316 DaysField of Search318/139, 320/132, 320/134, 320/135, 320/136, 320/137US Class Current1/1CPC Class CodesB60L 58/13 Maintaining the SoC within ...G01R 31/382 Arrangements for monitoring...G01R 31/389 Measuring internal impedanc...Y02T 10/70 Energy storage systems for ...
