BATTERY MANAGEMENT SYSTEM, BATTERY SYSTEM AND HYBRID VEHICLE CONTROL SYSTEM

The state of internal resistance is appropriately expressed for a battery being energized. A battery management system 100 includes a battery information acquisition section 103, a voltage calculation section 104, a current fluctuation amount calculation section 109 and a resistance correction amoun...

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Bibliographische Detailangaben
Hauptverfasser:	YONEMOTO Masahiro, SAKABE Kei, OHKAWA Keiichiro, NAKAO Ryohhei, KOMATSU Daiki
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ELECTRICITY ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL GENERATION MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PERFORMING OPERATIONS PHYSICS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SYSTEMS FOR STORING ELECTRIC ENERGY TESTING TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	The state of internal resistance is appropriately expressed for a battery being energized. A battery management system 100 includes a battery information acquisition section 103, a voltage calculation section 104, a current fluctuation amount calculation section 109 and a resistance correction amount calculation section 111. The battery information acquisition section 103 acquires a voltage value V of a storage battery 101 being energized. The voltage calculation section 104 acquires a predicted battery voltage value V model of the storage battery 101 being energized by a method different from that of the battery information acquisition section 103. The current fluctuation amount calculation section 109 calculates a current fluctuation amount dI/dt of the storage battery 101 per unit time. Based on the comparison result of the voltage value V and the predicted battery voltage value V model and the current fluctuation amount dI/dt, the resistance correction amount calculation section 111 corrects an equivalent circuit model expressing the internal state of the storage battery 101 including a DC resistance component Ro and a polarization resistance component R p .