公开(公告)号：US12055595B2

公开(公告)日：2024-08-06

申请号：US17614130

申请日：2020-05-29

Applicant: Cummins Inc.

Inventor： Omkar A. Harshe ,  Kameshwaran Sasidharan ,  John P O'Brien

IPC: G01R31/392 ,  B60L58/16 ,  G01R31/367

CPC classification number: G01R31/392 ,  B60L58/16 ,  G01R31/367 ,  B60L2240/547 ,  B60L2250/16

Abstract: Methods and systems of estimating an end of life of a rechargeable energy storage device in an energy storage system is disclosed. The system includes at least a motor, the energy storage device associated with the motor, a processing unit associated with the energy storage device, and at least one sensor operatively coupled with the processing unit and the energy storage device. The method includes measuring a most recent state of health (SOH) of the energy storage device after the system is started, storing the most recent SOH with at least one previously measured SOH, calculating a new replace-by date of the energy storage device based on the most recent SOH and the at least one previously measured SOH, and replacing a previously calculated old replace-by date with the new replace-by date, the new replace-by date being the same as or shorter than the old replace-by date.

公开(公告)号：US20220221523A1

公开(公告)日：2022-07-14

申请号：US17614130

申请日：2020-05-29

Applicant: Cummins Inc.

Inventor： Omkar A. Harshe ,  Kameshwaran Sasidharan ,  John P. O'Brien

IPC: G01R31/392 ,  G01R31/367 ,  B60L58/16

Abstract: Methods and systems of estimating an end of life of a rechargeable energy storage device in an energy storage system is disclosed. The system includes at least a motor, the energy storage device associated with the motor, a processing unit associated with the energy storage device, and at least one sensor operatively coupled with the processing unit and the energy storage device. The method includes measuring a most recent state of health (SOH) of the energy storage device after the system is started, storing the most recent SOH with at least one previously measured SOH, calculating a new replace-by date of the energy storage device based on the most recent SOH and the at least one previously measured SOH, and replacing a previously calculated old replace-by date with the new replace-by date, the new replace-by date being the same as or shorter than the old replace-by date.