Patents by Inventor Chengfei Zhao

Chengfei Zhao 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: 12122356
    Abstract: A control method and system for a hybrid power system, and an electric vehicle. The method includes: step S1, a control unit acquiring a real-time vehicle mode signal, vehicle speed data, and actual torque data of an engine; step S2, the control unit determining whether a power system of a vehicle is in a parallel mode, if the power system of the vehicle is in the parallel mode, the control unit sending a torque compensation signal to a drive electric motor; and step S3, the control unit determining positive and negative attributes of the torque compensation signal adjusting a compensation torque output value of the drive electric motor in real time. By means of the control method, gears connecting a drive electric motor to an engine can be prevented from generating tooth knocking noise, thereby greatly alleviating NVH during the driving of a vehicle.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: October 22, 2024
    Assignee: GUANGZHOU AUTOMOBILE GROUP CO., LTD.
    Inventors: Siran Huang, Chengfei Zhao, Ruiyang Deng, Jianqi Long, Dongsheng Wu
  • Publication number: 20220410869
    Abstract: A control method and system for a hybrid power system, and an electric vehicle. The method includes: step S1, a control unit acquiring a real-time vehicle mode signal, vehicle speed data, and actual torque data of an engine; step S2, the control unit determining whether a power system of a vehicle is in a parallel mode, if the power system of the vehicle is in the parallel mode, the control unit sending a torque compensation signal to a drive electric motor; and step S3, the control unit determining positive and negative attributes of the torque compensation signal adjusting a compensation torque output value of the drive electric motor in real time. By means of the control method, gears connecting a drive electric motor to an engine can be prevented from generating tooth knocking noise, thereby greatly alleviating NVH during the driving of a vehicle.
    Type: Application
    Filed: June 4, 2021
    Publication date: December 29, 2022
    Inventors: Siran Huang, Chengfei Zhao, Ruiyang Deng, Jianqi Long, Dongsheng Wu
  • Patent number: D934828
    Type: Grant
    Filed: April 7, 2020
    Date of Patent: November 2, 2021
    Assignee: YEALINK (XIAMEN) NETWORK TECHNOLOGY CO., LTD.
    Inventor: Chengfei Zhao
  • Patent number: D941259
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: January 18, 2022
    Assignee: YEALINK (XIAMEN) NETWORK TECHNOLOGY CO., LTD.
    Inventors: Chengfei Zhao, Jiancheng Zhang
  • Patent number: D941260
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: January 18, 2022
    Assignee: YEALINK (XIAMEN) NETWORK TECHNOLOGY CO., LTD.
    Inventors: Chengfei Zhao, Jiancheng Zhang
  • Patent number: D941261
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: January 18, 2022
    Assignee: YEALINK (XIAMEN) NETWORK TECHNOLOGY CO., LTD.
    Inventors: Chengfei Zhao, Jiancheng Zhang
  • Patent number: D942428
    Type: Grant
    Filed: April 7, 2020
    Date of Patent: February 1, 2022
    Assignee: YEALINK (XIAMEN) NETWORK TECHNOLOGY CO., LTD.
    Inventor: Chengfei Zhao
  • Patent number: D991230
    Type: Grant
    Filed: November 10, 2021
    Date of Patent: July 4, 2023
    Assignee: YEALINK (XIAMEN) NETWORK TECHNOLOGY CO., LTD.
    Inventors: Chengfei Zhao, Jiancheng Zhang
  • Patent number: D991309
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: July 4, 2023
    Assignee: YEALINK (XIAMEN) NETWORK TECHNOLOGY CO., LTD.
    Inventors: Chengfei Zhao, Jiancheng Zhang
  • Patent number: D992624
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: July 18, 2023
    Assignee: YEALINK (XIAMEN) NETWORK TECHNOLOGY CO., LTD.
    Inventor: Chengfei Zhao
  • Patent number: D1000381
    Type: Grant
    Filed: December 24, 2021
    Date of Patent: October 3, 2023
    Assignee: YEALINK (XIAMEN) NETWORK TECHNOLOGY CO., LTD.
    Inventors: Chengfei Zhao, Jiancheng Zhang
  • Patent number: D1030654
    Type: Grant
    Filed: December 24, 2021
    Date of Patent: June 11, 2024
    Assignee: YEALINK (XIAMEN) NETWORK TECHNOLOGY CO., LTD.
    Inventors: Chengfei Zhao, Jiancheng Zhang
  • Patent number: D1038905
    Type: Grant
    Filed: April 21, 2022
    Date of Patent: August 13, 2024
    Assignee: YEALINK (XIAMEN) NETWORK TECHNOLOGY CO., LTD.
    Inventors: Chengfei Zhao, Jiancheng Zhang