Patents by Inventor Dengfeng HE

Dengfeng HE 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).

  • Publication number: 20240132152
    Abstract: The present disclosure provides a self-learning collaborative control method for active steering and yaw moment for a motor vehicle, including a first step of constructing fundamental formulas which are stored in a vehicle ECU, and a second step of calculating an active steering angle ?C and a yaw moment Mc on line by the vehicle ECU according to following sub-steps during a driving process of the motor vehicle, and controlling a driving state of the motor vehicle according to ?C and Mc. The second step includes a first sub-step of collecting raw real-time parameter values, a second sub-step of performing calculation by the identifier and the control target reference model, a third sub-step of calculating ?C and Mc. The present disclosure can realize the self-learning collaborative control of active steering and yaw moment without requiring a system control model and correct a driver's steering operation.
    Type: Application
    Filed: December 25, 2023
    Publication date: April 25, 2024
    Inventors: Zhijun Fu, Yaohua Guo, Dengfeng Zhao, Jinquan Ding, Chaohui Liu, Wenbin He, Wenchao Yang, Lei Yao, Fang Zhou, Hui Wang, Wuyi Ming
  • Patent number: 11839004
    Abstract: A driving circuit and a method for operating the driving circuit is provided for a lamp, the lamp includes a lighting unit, and a first and a second pair of connection pins for coupling the driving circuit to a power supply unit. The driving circuit includes a pre-heating detection circuit and a protection circuit. The pre-heating detection circuit is coupled to the first pair of connection pins and configured to detect a voltage between the first pair of connection pins and output a reference voltage. The protection circuit includes a switching circuit connected in series with the lighting unit, the protection circuit is configured to compare the reference voltage with an input voltage of the lamp and turn on the switching circuit to light the lighting unit when the input voltage of the lamp is greater than the reference voltage.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: December 5, 2023
    Assignee: SAVANT TECHNOLOGIES LLC
    Inventors: Yin Zhi, Junhua Huang, Zhichao Liu, Junxian Chu, Dengfeng He
  • Publication number: 20220361306
    Abstract: A driving circuit and a method for operating the driving circuit is provided for a lamp, the lamp includes a lighting unit, and a first and a second pair of connection pins for coupling the driving circuit to a power supply unit. The driving circuit includes a pre-heating detection circuit and a protection circuit. The pre-heating detection circuit is coupled to the first pair of connection pins and configured to detect a voltage between the first pair of connection pins and output a reference voltage. The protection circuit includes a switching circuit connected in series with the lighting unit, the protection circuit is configured to compare the reference voltage with an input voltage of the lamp and turn on the switching circuit to light the lighting unit when the input voltage of the lamp is greater than the reference voltage.
    Type: Application
    Filed: October 16, 2019
    Publication date: November 10, 2022
    Inventors: Yin Zhi, Junhua Huang, Zhichao Liu, Junxian Chu, Dengfeng He
  • Patent number: 11122665
    Abstract: Disclosed is a protective device of a lighting assembly, the lighting assembly comprising at least one LED, a first end lamp base and a second end lamp base, and the protective device including a first detecting module and a second detecting module and a driving module. The first detecting module and the second detecting are configured to detect a connection state of the first end lamp base to output a first detecting signal, and a connection state of the second end lamp base to output a second detecting signal. The driving module is connected to the at least one LED and configured to control the at least one LED to work based on the first detecting signal and the second detecting signal. The present disclosure also discloses a lighting assembly including the protective device and a protective method of the lighting assembly.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: September 14, 2021
    Assignee: Shaanxi Wasentech Intelligent Electric Co., Ltd.
    Inventor: Dengfeng He
  • Patent number: 10798794
    Abstract: The present invention discloses an LED lighting assembly configured to retrofit a fluorescent tube, comprising at least one LED, and a driving circuit configured to drive the at least one LED. The driving circuit comprises a switch control module and a rectifying circuit. The driving circuit is connected to the at least one LED and configured to receive and process an AC voltage signal from one side or both sides of the LED lighting assembly, and control the driving of the at least one LED based on the processed voltage signal. The rectifying circuit is connected to the at least one LED and configured to convert an AC power inputted to the rectifying circuit into a DC power supplied to the at least one LED. The present invention also discloses an LED driving circuit configured to retrofit a fluorescent tube.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: October 6, 2020
    Assignee: CURRENT LIGHTING SOLUTIONS, LLC
    Inventors: Dazhen Wang, Dengfeng He, Qiang Zou, Zhichao Liu, Junhua Huang, Junxian Chu
  • Publication number: 20190200426
    Abstract: The present invention discloses an LED lighting assembly configured to retrofit a fluorescent tube, comprising at least one LED, and a driving circuit configured to drive the at least one LED. The driving circuit comprises a switch control module and a rectifying circuit. The driving circuit is connected to the at least one LED and configured to receive and process an AC voltage signal from one side or both sides of the LED lighting assembly, and control the driving of the at least one LED based on the processed voltage signal. The rectifying circuit is connected to the at least one LED and configured to convert an AC power inputted to the rectifying circuit into a DC power supplied to the at least one LED. The present invention also discloses an LED driving circuit configured to retrofit a fluorescent tube.
    Type: Application
    Filed: November 13, 2018
    Publication date: June 27, 2019
    Inventors: Dahzen WANG, Dengfeng HE, Qiang ZOU, Zhichao LIU, Junhua HUANG, Junxian CHU