Patents by Inventor Yiqiang LIU

Yiqiang LIU has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11988256
    Abstract: A clutch control method, including: determining whether a current vehicle state satisfies a condition for a clutch to enter a sliding friction state; if so, controlling the clutch to enter the sliding friction state, and determining a target sliding friction rotating speed of the clutch; determining whether the current vehicle state satisfies a condition for entering a clutch torque deviation collecting state; if so, collecting a torque deviation once and storing the torque deviation; at an end of an adjustment period, accumulating all torque deviations collected previously and taking an average value according to an accumulation number of times, so as to obtain an average torque deviation; if the average torque deviation exceeds a preset deviation threshold, recording the average torque deviation; and if the current vehicle state satisfies a condition for entering a deviation applying state, adjusting a current clutch friction coefficient according to the recorded average torque deviation.
    Type: Grant
    Filed: September 7, 2023
    Date of Patent: May 21, 2024
    Assignees: Zhejiang Geely Holding Group Co., LTD, Ningbo Geely Royal Engine Components Co., Ltd., Aurobay Technology Co.,Ltd.
    Inventors: Junchao Jing, Jun Yang, Yiqiang Liu, Yiming Hui, Guang Ban, Guikang Yang, Weishan Huang, Ingo Scholten, Ruiping Wang
  • Publication number: 20240157929
    Abstract: A method and a device for controlling an engine to shut down, and an electronic device and a storage medium are provided. The method includes: obtaining current state information and operating parameter information of an engine, the current state information comprising a starting state, and the operating parameter information comprising rotating speed information, starting duration information, cooling liquid temperature information and torque information of the engine; and if the current state information is the starting state, and the rotating speed information, the starting duration information, the cooling liquid temperature information, and the torque information satisfy a first preset shutdown condition corresponding to the starting state, controlling the engine to be in a shutdown state.
    Type: Application
    Filed: June 29, 2021
    Publication date: May 16, 2024
    Inventors: Junchao JING, Yiqiang LIU, Weishan HUANG, Botao ZUO, Xuemei YU, Ruiping WANG, Ingo SCHOLTEN
  • Publication number: 20240157956
    Abstract: A determination method for a drive force to be requested for a hybrid vehicle, and an apparatus. The determination method comprises the following steps: obtaining a gear state, a current vehicle speed, a current gas pedal degree of engagement, and drive force mapping information of a vehicle, the drive force mapping information indicating a correspondence relationship between vehicle speed, gas pedal degree of engagement, and drive force; if the gear state is such that the vehicle is not in park gear or neutral gear, obtaining a driving mode and altitude data of the vehicle; and if the altitude data is less than a preset altitude, determining a drive force to be requested for the vehicle on the basis of the current vehicle speed, the current gas pedal degree of engagement, the driving mode, and the drive force mapping information.
    Type: Application
    Filed: May 20, 2021
    Publication date: May 16, 2024
    Inventors: Junchao JING, Yiqiang LIU, Weishan HUANG, Botao ZUO, Ruiping WANG, Ingo SCHOLTEN
  • Patent number: 11913395
    Abstract: An intelligent control method for engine initiation, including: determining whether a current driving mode satisfies a predetermined driving mode; when the current driving mode satisfies the predetermined driving mode, acquiring a current remaining capacity of a battery; determining whether the current remaining capacity is greater than a predetermined capacity threshold value; when the current remaining capacity is greater than the predetermined capacity threshold value, not starting an engine, otherwise, acquiring a catalyst temperature and a vehicle operating state; determining, according to the vehicle operating state, whether the catalyst temperature is less than a predetermined temperature threshold value; when the catalyst temperature is not less than the predetermined temperature threshold value, driving the engine to rotate clockwise to start same in a fuel cut-off manner, otherwise, heating a catalyst by a heating plate until the catalyst temperature is not less than the predetermined temperature th
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: February 27, 2024
    Assignees: ZHEJIANG GEELY HOLDING GROUP CO., LTD., NINGBO GEELY ROYAL ENGINE COMPONENTS CO., LTD., Aurobay Technology Co., Ltd.
    Inventors: Conghui An, Yiqiang Liu, Zhiwei Qiao, Changming Jin, Zhengxing Dai, Jiang Tang, Junjie Guo
  • Publication number: 20230417296
    Abstract: A clutch control method, including: determining whether a current vehicle state satisfies a condition for a clutch to enter a sliding friction state; if so, controlling the clutch to enter the sliding friction state, and determining a target sliding friction rotating speed of the clutch; determining whether the current vehicle state satisfies a condition for entering a clutch torque deviation collecting state; if so, collecting a torque deviation once and storing the torque deviation; at an end of an adjustment period, accumulating all torque deviations collected previously and taking an average value according to an accumulation number of times, so as to obtain an average torque deviation; if the average torque deviation exceeds a preset deviation threshold, recording the average torque deviation; and if the current vehicle state satisfies a condition for entering a deviation applying state, adjusting a current clutch friction coefficient according to the recorded average torque deviation.
    Type: Application
    Filed: September 7, 2023
    Publication date: December 28, 2023
    Applicants: Zhejiang Geely Holding Group Co., LTD, Ningbo Geely Royal Engine Components Co., Ltd., Aurobay Technology Co.,Ltd.
    Inventors: Junchao JING, Jun YANG, Yiqiang LIU, Yiming HUI, Guang BAN, Guikang YANG, Weishan HUANG, Ingo SCHOLTEN, Ruiping WANG
  • Publication number: 20230407803
    Abstract: An intelligent control method for engine initiation, including: determining whether a current driving mode satisfies a predetermined driving mode; when the current driving mode satisfies the predetermined driving mode, acquiring a current remaining capacity of a battery; determining whether the current remaining capacity is greater than a predetermined capacity threshold value; when the current remaining capacity is greater than the predetermined capacity threshold value, not starting an engine, otherwise, acquiring a catalyst temperature and a vehicle operating state; determining, according to the vehicle operating state, whether the catalyst temperature is less than a predetermined temperature threshold value; when the catalyst temperature is not less than the predetermined temperature threshold value, driving the engine to rotate clockwise to start same in a fuel cut-off manner, otherwise, heating a catalyst by a heating plate until the catalyst temperature is not less than the predetermined temperature th
    Type: Application
    Filed: November 19, 2021
    Publication date: December 21, 2023
    Inventors: Conghui AN, Yiqiang LIU, Zhiwei QIAO, Changming JIN, Zhengxing DAI, Jiang TANG, Junjie GUO