Patents by Inventor Shihua LAN

Shihua LAN 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).

  • Method for controlling neutral gear of automatic transmission
    Patent number: 10724631
    Abstract: Disclosed is a method for controlling a neutral gear of an automatic transmission. The method includes: when a neutral gear control function of the automatic transmission is in an activated state, an automatic Transmission Control Unit (TCU) collects information on a pressure of a brake main cylinder, a state of a brake pedal, and whether an autohold function is in an activated state or not; and when the pressure of the brake main cylinder is smaller than a pressure threshold P3 of the neutral gear control function and the autohold function is in an inactivated state, or when the brake pedal is in an unstamped state and the autohold function is in the inactivated state, the automatic TCU controls the neutral gear control function to exit from the activated state.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: July 28, 2020
    Assignee: Guangzhou Automobile Group Co., Ltd.
    Inventors: Xinbo Liu, Shihua Lan, Youhui Chen
  • Method for Controlling Neutral Gear of Automatic Transmission
    Publication number: 20190136968
    Abstract: Disclosed is a method for controlling a neutral gear of an automatic transmission. The method includes: when a neutral gear control function of the automatic transmission is in an activated state, an automatic Transmission Control Unit (TCU) collects information on a pressure of a brake main cylinder, a state of a brake pedal, and whether an autohold function is in an activated state or not; and when the pressure of the brake main cylinder is smaller than a pressure threshold P3 of the neutral gear control function and the autohold function is in an inactivated state, or when the brake pedal is in an unstamped state and the autohold function is in the inactivated state, the automatic TCU controls the neutral gear control function to exit from the activated state.
    Type: Application
    Filed: July 24, 2017
    Publication date: May 9, 2019
    Inventors: Xinbo LIU, Shihua LAN, Youhui CHEN