Patents by Inventor Gengnan ZHANG

Gengnan ZHANG 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: 11923719
    Abstract: The present disclosure relates to the field of vehicle technology and provides an energy recovery control method, a system, and a vehicle. The method is applied in a vehicle, and the vehicle comprises a drive motor and a battery electrically connected to the drive motor; a first energy recovery torque curve with respect to the drive motor is pre-configured in the vehicle, and the first energy recovery torque curve is used to indicate a correspondence relationship between vehicle speed and energy recovery torque of the drive motor. The present disclosure performs reduction on a first energy recovery torque curve by means of utilizing a reduction ratio, allowing energy recovery in accordance with a relatively low torque strength when a usable charge power of the battery is unable to satisfy a preset power requirement corresponding to the first energy recovery torque curve.
    Type: Grant
    Filed: January 11, 2021
    Date of Patent: March 5, 2024
    Assignee: GREAT WALL MOTOR COMPANY LIMITED
    Inventors: Yinlei Wang, Tong Kang, Gengnan Zhang, Zhenmin Jiang, Baogang Wang, Xiu Liu
  • Publication number: 20230219436
    Abstract: A DC converter, a controlling method, and a vehicle are provided. The DC converter includes: a first inductor, a switching unit, a diode, a first capacitor, a load resistor, a pre-charge control unit and a controller. The output terminal of the controller is connected with the control terminal of the switching unit and the control terminal of the pre-charge control unit. The controller is configured to control the switching unit to be turned on or turned off, and to control the resistor connected between the negative electrode of the diode and the first end of the load resistance in the pre-charge control unit when the switching unit is turned off, such that the direct current converter is pre-charged by the low-voltage power supply.
    Type: Application
    Filed: September 29, 2021
    Publication date: July 13, 2023
    Inventors: Mingwang ZHOU, Xuejing YANG, Shujiang CHEN, Gengnan ZHANG, Yipo HU
  • Publication number: 20230139991
    Abstract: The present disclosure provides a method and system for determining a pure electric available power and a vehicle, the method being applied to a vehicle including a fuel cell, the vehicle further including a battery pack and a motor, the fuel cell and the battery pack being electrically connected to the motor, wherein the method includes: monitoring a current travelling state of the vehicle and a current on-off state of the fuel cell; acquiring a maximum peak power outputted by the motor, a maximum output power of the battery pack and a starting-up power of the fuel cell; and according to the current travelling state, the current on-off state of the fuel cell, the maximum peak power, the maximum output power and the starting-up power, determining the pure electric available power.
    Type: Application
    Filed: April 9, 2021
    Publication date: May 4, 2023
    Inventors: Maiqing WU, Shengbo WANG, Lei LI, Zhiwei LIU, Yang HAO, Gengnan ZHANG, Linxiao WANG, Yazhou SHEN, Mingwang ZHOU, Yanlong GENG
  • Publication number: 20230040763
    Abstract: The present disclosure relates to the field of vehicle technology and provides an energy recovery control method, a system, and a vehicle. The method is applied in a vehicle, and the vehicle comprises a drive motor and a battery electrically connected to the drive motor; a first energy recovery torque curve with respect to the drive motor is pre-configured in the vehicle, and the first energy recovery torque curve is used to indicate a correspondence relationship between vehicle speed and energy recovery torque of the drive motor. The present disclosure performs reduction on a first energy recovery torque curve by means of utilizing a reduction ratio, allowing energy recovery in accordance with a relatively low torque strength when a usable charge power of the battery is unable to satisfy a preset power requirement corresponding to the first energy recovery torque curve.
    Type: Application
    Filed: January 11, 2021
    Publication date: February 9, 2023
    Inventors: Yinlei WANG, Tong KANG, Gengnan ZHANG, Zhenmin JIANG, Baogang WANG, Xiu LIU