Patents by Inventor Hogbin Ma

Hogbin Ma 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).

  • System for particulate matter sensor signal processing
    Patent number: 8165786
    Abstract: A system having a particulate matter sensor in an exhaust stream of an engine upstream from a particulate filter and another such sensor downstream from the filter. There may also be an exhaust gas recirculation (EGR) control on the engine. The amount of particulate matter in or loading of the filter may be determined by the upstream filter. The working condition of the filter may be determined by the downstream sensor. The filter may have a heater and control for providing operational and particulate matter burn-off temperatures to the filter. A processor may be connected to the sensors, the EGR control and the filter heater control.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: April 24, 2012
    Assignee: Honeywell International Inc.
    Inventors: Michael L. Rhodes, Brian C. Krafthefer, David B. Kittleson, Hogbin Ma
  • SYSTEM FOR PARTICULATE MATTER SENSOR SIGNAL PROCESSING
    Publication number: 20110010071
    Abstract: A system having a particulate matter sensor in an exhaust stream of an engine upstream from a particulate filter and another such sensor downstream from the filter. There may also be an exhaust gas recirculation (EGR) control on the engine. The amount of particulate matter in or loading of the filter may be determined by the upstream filter. The working condition of the filter may be determined by the downstream sensor. The filter may have a heater and control for providing operational and particulate matter burn-off temperatures to the filter. A processor may be connected to the sensors, the EGR control and the filter heater control.
    Type: Application
    Filed: July 23, 2010
    Publication date: January 13, 2011
    Applicants: HONEYWELL INTERNATIONAL INC., UNITED STATES DEPARTMENT OF ENERGY
    Inventors: Michael L. Rhodes, Brian C. Krafthefer, David B. Kittleson, Hogbin Ma