US 11,988,256 B2
Clutch control method and apparatus, storage medium, and program product
Junchao Jing, Zhejiang (CN); Jun Yang, Zhejiang (CN); Yiqiang Liu, Zhejiang (CN); Yiming Hui, Zhejiang (CN); Guang Ban, Zhejiang (CN); Guikang Yang, Zhejiang (CN); Weishan Huang, Zhejiang (CN); Ingo Scholten, Zhejiang (CN); and Ruiping Wang, Zhejiang (CN)
Assigned to Zhejiang Geely Holding Group Co., LTD, Zhejiang (CN); Ningbo Geely Royal Engine Components Co., Ltd., Zhejiang (CN); and Aurobay Technology Co.,Ltd., Zhejiang (CN)
Filed by Zhejiang Geely Holding Group Co., LTD, Zhejiang (CN); Ningbo Geely Royal Engine Components Co., Ltd., Zhejiang (CN); and Aurobay Technology Co.,Ltd., Zhejiang (CN)
Filed on Sep. 7, 2023, as Appl. No. 18/462,440.
Application 18/462,440 is a continuation of application No. PCT/CN2022/103465, filed on Jul. 1, 2022.
Claims priority of application No. 202111668160.X (CN), filed on Dec. 31, 2021.
Prior Publication US 2023/0417296 A1, Dec. 28, 2023
Int. Cl. F16D 48/06 (2006.01)
CPC F16D 48/06 (2013.01) [F16D 2500/30406 (2013.01); F16D 2500/30412 (2013.01); F16D 2500/30425 (2013.01); F16D 2500/30428 (2013.01); F16D 2500/3056 (2013.01); F16D 2500/31446 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A clutch control method, comprising:
receiving an activation signal to complete initialization, entering an adjustment period, and entering a waiting state;
determining whether a current vehicle state satisfies a condition for a clutch to enter a sliding friction state in the waiting state;
if the condition for the clutch to enter the sliding friction state is satisfied, controlling the clutch to enter the sliding friction state, and determining a target sliding friction rotating speed, corresponding to a current gear position, of the clutch;
determining whether a condition for entering a clutch torque deviation collecting state is satisfied, according to a relationship between an actual sliding friction rotating speed of the clutch and the target sliding friction rotating speed, and the current vehicle state;
if the condition for entering the clutch torque deviation collecting state is satisfied, entering the clutch torque deviation collecting state, collecting a torque deviation once, and storing the torque deviation;
at an end of the adjustment period, accumulating all torque deviations collected previously and then taking an average value according to an accumulation number of times, so as to obtain an average torque deviation; and if the average torque deviation exceeds a preset deviation threshold, recording the average torque deviation;
determining whether the current vehicle state satisfies a condition for entering a deviation applying state; and
if the current vehicle state satisfies the condition for entering the deviation applying state, adjusting a current clutch friction coefficient according to the recorded average torque deviation.