US 12,346,095 B2
Method and system for control of battery thermal management of electric drive bulldozers based on deep learning
Wei Yan, Jinan (CN); Guoxiang Li, Jinan (CN); Na Mei, Jinan (CN); Bin Hu, Jinan (CN); Qingjiang Wan, Jinan (CN); Rongzhong Li, Jinan (CN); Yinyin Liu, Jinan (CN); Jiashu Ji, Jinan (CN); and Jiaqi Li, Jinan (CN)
Assigned to SHANDONG UNIVERSITY, Shandong (CN)
Appl. No. 18/014,448
Filed by SHANDONG UNIVERSITY, Shandong (CN)
PCT Filed Jul. 18, 2022, PCT No. PCT/CN2022/106154
§ 371(c)(1), (2) Date Jan. 4, 2023,
PCT Pub. No. WO2022/258079, PCT Pub. Date Dec. 15, 2022.
Claims priority of application No. 202110643527.6 (CN), filed on Jun. 9, 2021.
Prior Publication US 2023/0273593 A1, Aug. 31, 2023
Int. Cl. G05B 19/4155 (2006.01)
CPC G05B 19/4155 (2013.01) [G05B 2219/50333 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A computer-readable non-transitory storage medium storing a computer program that, when executed by a processor, causes the processor to perform a method for control of a battery thermal management (BTM) of an electric drive bulldozer, comprising:
obtaining a load segment of a current moment “t” in a load spectrum of a running load of the electric drive bulldozer;
predicting the load segment of a next moment “t+1” using a Markov chain model;
carrying out a weighting calculation by using the load segment of the current moment “t” and a corresponding weight thereof with the predicted load segment of the next moment “t+1” and a corresponding weight thereof,
calculating a motor speed, a motor torque, and a state of charge (SOC) of a battery of the electric drive bulldozer based on the weighted load segment;
taking a real-time battery outlet water temperature, an occupant cabin temperature, an occupant cabin target temperature, an ambient temperature, and the calculated motor speed, the calculated motor torque and the calculated SOC which are calculated based on the weighted load segment, as input quantities of an electric compressor rotating speed prediction model to predict a rotating speed of an electric compressor of the electric drive bulldozer; and
controlling the rotating speed of the electric compressor of the electric drive bulldozer according to the predicted rotating speed of the electric compressor of the electric drive bulldozer so as to achieve control of the BTM of the electric drive bulldozer.