The disclosed subject matter relates to a method and system for detecting failures in a cell measuring circuit for a vehicle battery comprising a plurality of battery cells. First the method comprises determining a cell voltage of each of the plurality of cells by the respective cell measuring circuit. Next, the method comprises performing cell balancing to balance a cell voltage for the plurality of cells and the cell balancing times are compared to determine if there are deviating cell balancing times, and if there is an identifiable pattern in the cell balancing times which can provide an indication of a failure in any of the cell measuring circuits.
SYSTEM AND METHOD FOR DETECTING FAILURES IN A BATTERY MANAGEMENT SYSTEM FOR A VEHICLE BATTERY
SYSTEM UND VERFAHREN ZUR DETEKTION VON FEHLERN IN EINEM BATTERIEVERWALTUNGSSYSTEM FÜR EINE FAHRZEUGBATTERIE
SYSTÈME ET PROCÉDÉ DE DÉTECTION DE DÉFAILLANCES DANS UN SYSTÈME DE GESTION DE BATTERIE POUR UNE BATTERIE DE VÉHICULE
2022-10-26
Patent
Electronic Resource
English
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 |
SYSTEM AND METHOD FOR DETECTING FAILURES IN A BATTERY MANAGEMENT SYSTEM FOR A VEHICLE BATTERY
European Patent Office | 2021
|System and method for detecting failures in a battery management system for a vehicle battery
European Patent Office | 2022
|Resolving communication failures within vehicle wireless battery management system
European Patent Office | 2022
|Apparatus for detecting battery pack, method, battery, battery system and vehicle
European Patent Office | 2015
|Vehicle battery management system, vehicle and vehicle battery management method
European Patent Office | 2020
|