US 11,906,596 B2
System-side battery health gauge and methods
Chi Cheng Liao, Hsinchu (TW); Jia-You Chuang, Hsinchu (TW); and Jui-Chi Wu, Hsinchu (TW)
Assigned to MediaTek Inc., Hsinchu (TW)
Filed by MediaTek Inc., Hsinchu (TW)
Filed on Dec. 9, 2021, as Appl. No. 17/547,181.
Claims priority of provisional application 63/130,436, filed on Dec. 24, 2020.
Prior Publication US 2022/0206079 A1, Jun. 30, 2022
Int. Cl. G01R 31/392 (2019.01); G01R 31/367 (2019.01)
CPC G01R 31/392 (2019.01) [G01R 31/367 (2019.01)] 20 Claims
OG exemplary drawing
 
1. A method for a device to estimate battery health, comprising:
collecting measurements of a battery over a plurality of charging and discharging cycles;
assigning scores to the measurements according to scoring rules stored in a memory of the device;
calculating battery health based on an average of the measurements, each measurement having an assigned score greater than a threshold; and
updating the scoring rules and measurement rules based on an analysis of the measurements during lifetime of the battery, wherein the measurement rules are used to adjust trigger conditions that define when to collect the measurements.