US 11,789,087 B2
Battery charge support system for reducing energy loss
Hideo Kondo, Oizumi-machi (JP)
Assigned to SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC, Scottsdale, AZ (US)
Filed by SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC, Phoenix, AZ (US)
Filed on Mar. 3, 2021, as Appl. No. 17/190,938.
Prior Publication US 2022/0283237 A1, Sep. 8, 2022
Int. Cl. G01R 31/3842 (2019.01); G01R 31/374 (2019.01); G01R 31/36 (2020.01); G01R 31/367 (2019.01); H01M 10/48 (2006.01); G05B 13/04 (2006.01)
CPC G01R 31/3842 (2019.01) [G01R 31/374 (2019.01); H01M 10/486 (2013.01); G01R 31/367 (2019.01); G01R 31/3648 (2013.01); G05B 13/041 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A battery system comprising:
a temperature sensor configured to detect a temperature of a battery;
a state-of-charge (SoC) calculation engine configured to calculate an SoC value of the battery;
a charge current controller configured to determine an adjusted current according to a charge profile based on the temperature and the SoC value, the charge current controller configured to transmit current data that indicates the adjusted current to a device;
an energy calculation engine configured to:
compute estimated charge energy loss based on an internal resistance of the battery and the adjusted current from the charge profile; and
compute actual charge energy loss for the battery for a sampling period based on the SoC value, a cell voltage of the battery detected by a voltage monitor, and a current detected by a current sensor; and
a battery manager configured to generate an alert based on a comparison of the estimated charge energy loss with the actual charge energy loss.