A method for detecting a thermal event of a battery, such as a traction battery of an electrified vehicle, includes monitoring a voltage of a group of parallel-connected cells of the battery. In response to confirming that the voltage of the group has a voltage rebound, a thermal event of the battery is detected. The detection of the thermal event may further depend on detection of a deviation of another operating parameter, such as temperature or pressure, of the battery.
Traction Battery Controller Utilizing Voltage Rebound of Parallel-Connected Battery Cells to Detect for a Thermal Event
06.06.2024
Patent
Elektronische Ressource
Englisch
IPC: | 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 |
Detection of thermal events using voltage springback of battery cells connected in parallel
Europäisches Patentamt | 2024
|Europäisches Patentamt | 2024
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