Patents by Inventor Hongxun Gao

Hongxun Gao 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).

  • Model-based control of airpath pressure limits by modulating a turbo charger by-pass valve and a variable-geometry turbine
    Patent number: 8209979
    Abstract: Simultaneous or independent control of a by-pass valve and a variable-geometry forced induction component on a combustion engine is based on operational parameters measured by various sensors provided as inputs to a control module. Sudden loss of power due to low turbine efficiencies is prevented during transitions between operating conditions of engine speed and load. Excessive peak cylinder pressures are also prevented by controlling engine boost pressure to a permitted limit at high engine speed and load.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: July 3, 2012
    Assignee: GM Global Technology Operations LLC
    Inventors: Yue-Yun Wang, Xiaobin (Sharon) Li, Hongxun Gao, Ibrahim Haskara
  • MODEL-BASED CONTROL OF AIRPATH PRESSURE LIMITS BY MODULATING A TURBO CHARGER BY-PASS VALVE AND A VARIABLE-GEOMETRY TURBINE
    Publication number: 20100242470
    Abstract: Simultaneous or independent control of a by-pass valve and a variable-geometry forced induction component on a combustion engine is based on operational parameters measured by various sensors provided as inputs to a control module. Sudden loss of power due to low turbine efficiencies is prevented during transitions between operating conditions of engine speed and load. Excessive peak cylinder pressures are also prevented by controlling engine boost pressure to a permitted limit at high engine speed and load.
    Type: Application
    Filed: March 24, 2009
    Publication date: September 30, 2010
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Yue-Yun Wang, Xiaobin Li, Hongxun Gao, Ibrahim Haskara
  • Diesel transient combustion control based on intake carbon dioxide concentration
    Patent number: 7769526
    Abstract: An engine control module includes a target intake carbon dioxide (CO2) module that determines a target intake CO2 concentration. An intake CO2 estimation module estimates an actual intake CO2 concentration. The engine control module adjusts fuel injection based on the target intake CO2 concentration and the actual intake CO2 concentration.
    Type: Grant
    Filed: May 6, 2008
    Date of Patent: August 3, 2010
    Inventors: Qian Chen, Tim Chang, Hongxun Gao
  • DIESEL TRANSIENT COMBUSTION CONTROL BASED ON INTAKE CABON DIOXIDE CONCENTRATION
    Publication number: 20090055078
    Abstract: An engine control module includes a target intake carbon dioxide (CO2) module that determines a target intake CO2 concentration. An intake CO2 estimation module estimates an actual intake CO2 concentration. The engine control module adjusts fuel injection based on the target intake CO2 concentration and the actual intake CO2 concentration.
    Type: Application
    Filed: May 6, 2008
    Publication date: February 26, 2009
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Qian Chen, Tim Chang, Hongxun Gao