System for estimation of state of health of battery pack and method thereof

A system for estimation of state of health of a battery pack, the system comprising:

• a memory including executable instructions;
• a transceiver to receive a set of operational parameters pertaining to an operation of each of a plurality of cells of the battery pack and a discharge profile of one an exemplary battery pack and the battery pack to determine a discharge capacity of one of the exemplary battery pack and the battery pack utilizing the discharge profile;
• and
• at least one processor in communication with the memory and the transceiver, the at least one processor configured to receive the executable instructions and configured to:
• determine a first state of health of the battery pack utilizing the set of operational parameters and a first set of stress parameters;
• determine a second state of health of the battery pack based on the determined discharge capacity;
• utilize the first state of health and the second state of health to determine a second set of stress parameters of the battery pack for each of a plurality of State of Charge (SOC) ranges of the battery pack;
• dynamically select at least of the second set of stress parameters from the second set of stress parameters, wherein the at least one of the second set of stress parameters corresponds to at least one SOC range of the plurality of SOC ranges;
• determine a third state of health of the battery pack based on the at least one selected second set of stress parameters and the set of operational parameters;
• determine a deviation parameter based on the first and the third state of health of the battery pack;
• and
• transmit an ideal state of health signal to one of a server and a communication device of an electric vehicle in response to the determined deviation parameter being greater than a pre-defined threshold.

A battery pack comprising:

• a plurality of cells arranged within the battery pack;
• a plurality of sensors electrically coupled to the plurality of cells to measure a set of operational parameters pertaining to an operation of each of a plurality of cells of the battery pack;
• a battery telematics unit communicably coupled to the plurality of cells and the plurality of sensors;
• and
• at least one processor communicably coupled to each of the sensory unit and the battery telematics unit, the processor configured to:
• receive the set of operational parameters pertaining to an operation of each of a plurality of cells of the battery pack;
• determine a first state of health of the battery pack utilizing the set of operational parameters and a first set of stress parameters;
• receive a discharge profile of one an exemplary battery pack and the battery pack to determine a discharge capacity of one of the exemplary battery pack and the battery pack utilizing the discharge profile;
• determine a second state of health of the battery pack based on the determined discharge capacity;
• utilize the first state of health and the second state of health to determine a second set of stress parameters of the battery pack for each of a plurality of State of Charge (SOC) ranges of the battery pack;
• dynamically select at least of the second set of stress parameters from the second set of stress parameters, wherein the at least one of the second set of stress parameters corresponds to at least one SOC range of the plurality of SOC ranges;
• determine a third state of health of the battery pack based on the at least one selected second set of stress parameters and the set of operational parameters;
• determine a deviation parameter based on the first and the third state of health of the battery pack;
• and
• transmit an ideal state of health signal to one of a server and a user device of an electric vehicle in response to the determined deviation parameter being greater than a pre-defined threshold.