Patents by Inventor Zena Yanqing Yee

Zena Yanqing Yee 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 and system for compensating engine blow-through air
    Patent number: 11131261
    Abstract: A method for adjusting an air-fuel ratio of a turbocharged engine that operates without blow though and with blow through is disclosed. In one example, the method provides a way to provide a feed forward fuel adjustment in the presence of engine blow though so that a closed loop controller does not have to exceed its range of control authority.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: September 28, 2021
    Assignee: Ford Global Technologies, LLC
    Inventors: Douglas Owen Toms, Paul Mahlon Ranspach, Stephen William Magner, Kenneth John Behr, Zena Yanqing Yee
  • METHOD AND SYSTEM FOR COMPENSATING ENGINE BLOW-THROUGH AIR
    Publication number: 20210148295
    Abstract: A method for adjusting an air-fuel ratio of a turbocharged engine that operates without blow though and with blow through is disclosed. In one example, the method provides a way to provide a feed forward fuel adjustment in the presence of engine blow though so that a closed loop controller does not have to exceed its range of control authority.
    Type: Application
    Filed: November 14, 2019
    Publication date: May 20, 2021
    Inventors: Douglas Owen Toms, Paul Mahlon Ranspach, Stephen William Magner, Kenneth John Behr, Zena Yanqing Yee
  • METHOD AND SYSTEM FOR CONTROLLING AN OXYGEN SENSOR
    Publication number: 20190360419
    Abstract: Methods and systems are provided for adjusting a voltage of a heated oxygen sensor (HEGO) so that the heated oxygen sensor is controlled to a desired temperature as the HEGO ages. In one example, a method generates a requested heated oxygen sensor electrode impedance for control and then adjusts the voltage responsive to the requested heated oxygen sensor electrode impedance for control.
    Type: Application
    Filed: May 24, 2018
    Publication date: November 28, 2019
    Inventors: Kenneth Behr, Zena Yanqing Yee, Gladys Galicia
  • Method and system for controlling an oxygen sensor
    Patent number: 10487764
    Abstract: Methods and systems are provided for adjusting a voltage of a heated oxygen sensor (HEGO) so that the heated oxygen sensor is controlled to a desired temperature as the HEGO ages. In one example, a method generates a requested heated oxygen sensor electrode impedance for control and then adjusts the voltage responsive to the requested heated oxygen sensor electrode impedance for control.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: November 26, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Kenneth Behr, Zena Yanqing Yee, Gladys Galicia
  • Exhaust gas sensor controls adaptation for asymmetric type sensor degradation
    Patent number: 10337436
    Abstract: Methods and systems are provided for converting an asymmetric sensor response of an exhaust gas sensor to a symmetric response. In one example, a method includes adjusting fuel injection responsive to a modified exhaust oxygen feedback signal from an exhaust gas sensor, where the modified exhaust oxygen feedback signal is modified by transforming an asymmetric response of the exhaust gas sensor to a symmetric response. Further, the method may include adapting parameters of an anticipatory controller of the exhaust gas sensor based on the modified symmetric response.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: July 2, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: Hassene Jammoussi, Imad Hassan Makki, Gladys G. Galicia, Kenneth John Behr, Zena Yanqing Yee
  • EXHAUST GAS SENSOR CONTROLS ADAPTATION FOR ASYMMETRIC TYPE SENSOR DEGRADATION
    Publication number: 20190136780
    Abstract: Methods and systems are provided for converting an asymmetric sensor response of an exhaust gas sensor to a symmetric response. In one example, a method includes adjusting fuel injection responsive to a modified exhaust oxygen feedback signal from an exhaust gas sensor, where the modified exhaust oxygen feedback signal is modified by transforming an asymmetric response of the exhaust gas sensor to a symmetric response. Further, the method may include adapting parameters of an anticipatory controller of the exhaust gas sensor based on the modified symmetric response.
    Type: Application
    Filed: November 6, 2017
    Publication date: May 9, 2019
    Inventors: Hassene Jammoussi, Imad Hassan Makki, Gladys G. Galicia, Kenneth John Behr, Zena Yanqing Yee