US 11,988,719 B2
System for estimating state of health of battery using big data
Hyun Soo Park, Whasung-Si (KR)
Assigned to Hyundai Motor Company, Seoul (KR); and Kia Motors Corporation, Seoul (KR)
Filed by Hyundai Motor Company, Seoul (KR); and Kia Motors Corporation, Seoul (KR)
Filed on Sep. 21, 2020, as Appl. No. 17/027,055.
Claims priority of application No. 10-2020-0054826 (KR), filed on May 8, 2020.
Prior Publication US 2021/0349156 A1, Nov. 11, 2021
Int. Cl. G01R 31/392 (2019.01); B60L 58/16 (2019.01); G01R 31/367 (2019.01)
CPC G01R 31/392 (2019.01) [G01R 31/367 (2019.01); B60L 58/16 (2019.02)] 11 Claims
OG exemplary drawing
 
1. A system for estimating a state of health (SOH) of a battery using big data, the system comprising:
a big data server including a processor, the processor being configured to receive vehicle driving-related data generated from a vehicle and a result of determining the SOH of the battery, to process the received vehicle driving-related data, and to generate and store a factor related to the SOH of the battery mounted in the vehicle;
a controller disposed in the vehicle and configured for determining the SOH of the battery using a preset algorithm for determining the SOH of the battery based on the factor stored in the big data server and outputting the determined SOH,
wherein the processor is configured to group vehicles having similarity according to the factor and generate information on the SOH of the battery for each group,
wherein the controller is configured to determine whether the determined SOH of the battery is appropriate based on the information on the SOH of the battery for a group to which the vehicle belongs,
wherein the information on the SOH of the battery for each group comprises a maximum SOH value of the battery, a minimum SOH value of the battery and a representative SOH value of the battery, and
wherein when the vehicle is in a state in which a preset condition for determining the SOH of the battery is satisfied, and the determined SOH of the battery is a value between the maximum SOH value of the battery and the minimum SOH value of the battery in the group to which the vehicle belongs, the controller is configured to determine the determined SOH of the battery to be a final SOH of the battery and to control the battery based on the determined SOH to provide power to a motor of the vehicle to drive wheels of the vehicle.