BATTERY CONTROLLER, VEHICLE, BATTERY CONTROL METHOD AND DETERMINATION PROGRAM

• Main Authors: TAKAHARA YOSHIYUKI, NISHIWAKI NORIO
• Format: Patent
• Language: English; Japanese
• Published: 26.08.2022
• Subjects: BASIC ELECTRIC ELEMENTS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SYSTEMS FOR STORING ELECTRIC ENERGY

To ensure the precision of determination without depending on temperature changes in determining the possibility of backup of any other battery on the basis of electric power which a battery can output.SOLUTION: A vehicle 12 is configured such that a sub battery 18 can supply electric power to a secondary system apparatus 24 in place of a main battery 16. A control section 20 as a battery controller calculates output possible power of the sub battery 18, measures a temperature of the sub battery 18 and determines whether or not the sub battery 18 is an alternative of the main battery 16 according to a different method depending on whether or not the measured temperature is a preset temperature or higher.SELECTED DRAWING: Figure 1 【課題】バッテリが出力可能な電力に基づいて他のバッテリのバックアップの可否を判定する場合において、温度変化によらず判定の精度を確保する。【解決手段】車両１２は、メインバッテリ１６に代わりサブバッテリ１８が二次系統機器２４に電力の供給を可能に構成されている。バッテリ制御装置としての制御部２０は、サブバッテリ１８の出力可能電力を算出し、サブバッテリ１８の温度を測定し、測定された温度が予め設定された設定温度以上になるか否かによって異なる方法により、サブバッテリ１８がメインバッテリ１６の代替となるかを判定する。【選択図】図１