METHOD AND SYSTEM TO MANAGE THERMAL PROPAGATION IN AN ENERGY STORAGE DEVICE OF A BATTERY ELECTRIC VEHICLE

A method to manage thermal propagation in an energy storage device of a battery electric vehicle is provided. The method includes operating the battery electric vehicle with a plurality of distinct battery cell module groups each separately providing electrical power to the battery electric vehicle. The method further includes, within a computerized battery cell module groups controller, monitoring conditions within the distinct battery cell module groups, determining occurrence of an abnormal event within one of a plurality of the distinct battery cell module groups based upon the monitored conditions, and controlling operation of the battery electric vehicle based upon the determined occurrence of the abnormal event.