Patents by Inventor Rebecca Trierweiler

Rebecca Trierweiler 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 monitoring an auxiliary pump for a hybrid powertrain
    Patent number: 8068966
    Abstract: A powertrain system includes a hybrid transmission coupled to an engine and an auxiliary hydraulic pump. The auxiliary hydraulic pump is commanded to operate at a predetermined speed only when enable criteria are met. An engine-off state is inhibited based upon a difference between a commanded speed and a monitored operating speed of the auxiliary hydraulic pump.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: November 29, 2011
    Assignees: GM Global Technology Operations LLC, Daimler AG, Chrysler LLC, Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Peter E. Wu, Ali K Naqvi, Rebecca Trierweiler, Syed Naqi, Ryan D Martini
  • METHOD FOR MONITORING AN AUXILIARY PUMP FOR A HYBRID POWERTRAIN
    Publication number: 20090118954
    Abstract: A powertrain system includes a hybrid transmission coupled to an engine and an auxiliary hydraulic pump. The auxiliary hydraulic pump is commanded to operate at a predetermined speed only when enable criteria are met. An engine-off state is inhibited based upon a difference between a commanded speed and a monitored operating speed of the auxiliary hydraulic pump.
    Type: Application
    Filed: October 10, 2008
    Publication date: May 7, 2009
    Applicants: GM GLOBAL TECHNOLOGY OPERATIONS, INC., Daimler AG, Chrysler LLC, Bayerishe Motoren Werke Aktiengesellschaft
    Inventors: PETER E. WU, ALI K. NAQVI, REBECCA TRIERWEILER, SYED NAQI, RYAN D. MARTINI