The method of detecting battery degradation level detects the change in residual capacity (SOC) for one charging period or one discharging period of a battery 1 being charged and discharged. Weighting factors that establish degradation level according to the value of SOC are pre-stored in memory, and based on the stored data; weighting factors are determined from the detected SOC to determine the battery 1 degradation level from the weighting factors. The method detects degradation level from a change in the residual capacity (SOC) detected over one charging period or one discharging period, rather than simply from the current, to allow more accurate detection of the battery degradation level.
BATTERY DEGRADATION LEVEL DETECTION METHOD
VERFAHREN ZUR ERKENNUNG EINES BATTERIEABBAU-LEVELS
PROCÉDÉ DE DÉTECTION DE NIVEAU DE DÉGRADATION DE BATTERIE
21.11.2018
Patent
Elektronische Ressource
Englisch
IPC: | G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |