BATTERY STATE DETECTION DEVICE AND INFORMATION PROCESSING SYSTEM

• Main Authors: IMAMURA TAKAHIRO, UOZU TOKUJI, INOUE KEI, UEDA TETSUYA, ASANO MINORU, SATO KAZUYOSHI
• Format: Patent
• Language: English; Japanese
• Published: 28.06.2023
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; TESTING

To increase the accuracy of detecting the state of a rechargeable battery.SOLUTION: A battery state detection device 10 includes a sensor 22, a communication unit 32, and an estimation unit 23. The sensor 22 measures at least one of voltage, current, and temperature of a rechargeable battery 4 mounted on a vehicle 2. The communication unit 32 is configured to obtain reference information about battery state detection, from an external device 40. The estimation unit 23 is configured to estimate the state of the rechargeable battery 4 based on a measurement value of the sensor 22. The estimation unit 23 is configured to correct at least one of an estimation expression and a parameter based on the reference information.SELECTED DRAWING: Figure 1 【課題】充電可能バッテリの状態検出の精度を高める。【解決手段】バッテリ状態検出装置１０は、センサ２２と、通信部３２と、推定部２３と、を備える。センサ２２は、車両２に搭載される充電可能バッテリ４の電圧、電流、および温度のうち少なくとも１つを測定する。通信部３２は、バッテリ状態検出に関する参照情報を外部装置４０から取得するように構成される。推定部２３は、センサ２２の測定値に基づいて充電可能バッテリ４の状態を推定するように構成される。推定部２３は、参照情報に基づいて推定式およびパラメータの少なくとも１つを補正するように構成される。【選択図】図１