STORAGE BATTERY CONTROL DEVICE

• Main Author: YAMAGUCHI RYUTA
• Format: Patent
• Language: English; Japanese
• Published: 07.02.2022
• Subjects: BASIC ELECTRIC ELEMENTS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS; GENERATION; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SYSTEMS FOR STORING ELECTRIC ENERGY

To correctly perform charge control even when a current sensor is abnormal.SOLUTION: At the charging of a main battery 21 by power supplied from an external charger 100, a battery control device 70 executes charge control based on the detection current of a first current sensor 22. The battery control device 70 includes: an acquisition unit which, at the charging of the main battery 21 by the external charger 100, acquires an output current detected by the external charger 100, as output current information; a reliability determination unit which determines the reliability of the output current information; an abnormality determination unit which determines whether or not an abnormality has occurred in the first current sensor 22; and a charge control unit which, on determination that an abnormality has occurred in the first current sensor 22, executes charge control using output current information in place of the detection current of the first current sensor 22, on condition that the reliability determination unit determines that the output current information is reliable.SELECTED DRAWING: Figure 1 【課題】電流センサの異常時にも適正に充電制御を実施する。【解決手段】バッテリ制御装置７０は、外部充電装置１００からの電力供給による主バッテリ２１の充電時に、第１電流センサ２２の検出電流に基づいて充電制御を実施する。バッテリ制御装置７０は、外部充電装置１００による主バッテリ２１の充電時に、外部充電装置１００にて検出される出力電流を出力電流情報として取得する取得部と、出力電流情報の信頼性を判定する信頼性判定部と、第１電流センサ２２に異常が生じているか否かを判定する異常判定部と、第１電流センサ２２に異常が生じていると判定された場合において、信頼性判定部により出力電流情報の信頼性が有ると判定されたことを条件に、第１電流センサ２２の検出電流に代えて出力電流情報を用いて充電制御を実施する充電制御部と、を備える。【選択図】 図１