1
Zettel Andrew M, Frisch Damon R, Jeffers Mary A, Tamai Goro, Koch Brian J: On-board battery refresh charging. Gen Motors, cheng tianzheng chen jingjun, August 16, 2006: CN200610007153

A refresh control system that selectively initiates a refresh charge cycle includes an energy storage device and an electric machine that is operable to charge the energy storage device. A control module monitors a usage period of the energy storage device and determines a bias factor. The control m ...


2
Zettel Andrew M, Miller Michael J, Gibbs James C, Jeffers Mary A: System and method for monitoring an electrical power relay in a hybrid electric vehicle. Gm Global Technology Operation, yangkai zhangzhi cheng, May 30, 2007: CN200610160451

A method and system to monitor a high voltage power relay operable to conduct electrical power from a source to a load, during each vehicle shutdown event. The system includes the electrical relay with a resistive device, electrically connected in parallel circuit, a controllable electrical load dev ...


3
Zettel Andrew M, Van Horn Charles J, Wu Peter E, Martini Ryan D, Heap Anthony H: Method and apparatus to monitor rotational speeds in an electro-mechanical transmission. Gm Global Tech Operations, June 3, 2009: EP2065277-A2

A powertrain includes an electro-mechanical transmission (10) mechanically-operatively coupled to an internal combustion engine (14) and an electric machine (56,72) to selectively transmit mechanical power to an output member (64). Powertrain operation includes monitoring operator inputs, and determ ...


4
Wu Peter E, Martini Ryan D, Naqi Syed, Sah Jy jen F, Almasri Osama, Buur Hanne, Zettel Andrew M, Van Horn Charles J: Electro-mechanical transmission control system. GM Global Tech Operations, Peng Wu, Cao Re, April 22, 2009: CN200810168730

A system for robust fault detection in an electrically variable, hydraulically controlled transmission includes independently monitoring hydraulic pressure within a hydraulic control circuit and electric machine rotation for detecting clutch state faults.


5
Zettel Andrew M, Van Horn Charles J, Wu Peter E, Martini Ryan D, Heap Anthony: Method and apparatus to monitor rotational speeds in an electro-mechanical transmission. GM Global Tech Operations, Zeng Xiangling, Yang Songling, May 27, 2009: CN200810175791

The present invention relates to a method and device for monitoring speed of electro-mechanical transmission, and relates to a powertrain comprising an electro-mechanical transmission mechanically-operatively coupled to an internal combustion engine and an electric machine to selectively transmit me ...


6
Martini Ryan D, Van Horn Charles J, Wu Peter E, Zettel Andrew M, Mathews Thomas E, Sah Jy Jen F, Naqi Syed, Crewes Darren: Method and apparatus to monitor a valve adapted to control mode to gear transitions during operation of an electro-mechanical transmission. GM Global Tech Operations, Peng Wu, He Zigang, April 8, 2009: CN200810160817

The present invention relates to a method and apparatus to monitor a valve adapted to control mode to gear transitions during operation of an electro-mechanical transmission. Monitoring operation of an electromechanical transmission having a hydraulic circuit with flow management valves and pressure ...


7
Martini Ryan D, Van Horn Charles J, Wu Peter E, Zettel Andrew M, Karim Rezaul, Dec Jeffrey R, Paladugu Sailaja: Method and apparatus to monitor an output speed sensor during operation of an electro-mechanical transmission. GM Global Tech Operations, Peng Wu, He Zigang, March 18, 2009: CN200810160819

The invention relates to a method and an apparatus to monitor an output speed sensor during operation of an electromechanical transmission. There is provided a method to monitor a sensing system adapted to monitor an output of an electro-mechanical transmission. This includes monitoring rotational s ...


8
Zettel Andrew M, Padmanabhan Jayanthi, Miller Michael J: Method and apparatus for detecting faults in a current sensing device. GM Global Tech Operations, Xue Feng, He Zigang, May 13, 2009: CN200810174461

A method and article of manufacture are provided to monitor a sensing system operative to monitor electrical current in a transmission line between an electrical storage device and an electrical machine. The sensing system comprises first and second sensors, operative to monitor first and second ran ...


9
Zettel Andrew M, Horn Charles J Van, Wu Peter E, Martini Ryan D, Wang Wei D, West Stephen T: Method and apparatus for monitoring a thermal management system of an electro-mechanical transmission. GM Global Tech Operations, Peng Wu, Cao Re, August 26, 2009: CN200810179927

The invention relates to a method and a device for monitoring a thermal management system of an electromechanical transmission. Temperature of an electric power device of a hybrid transmission is managed based on temperature and power flow of a device, ambient temperature and a cooling circuit flow ...


10
Wu Peter E, Martini Ryan D, Zettel Andrew M, Van Horn Charles J, Mathews Thomas E, Panahi Kambiz: Method and apparatus to monitor a flow management valve of an electro-mechanical transmission. GM Global Tech Operations, Peng Wu, Cao Re, November 11, 2009: CN200810179928

The invention relates to method and apparatus to monitor a flow management valve of an electro-mechnical transmission. The method includes setting a flow management valve capable of implementing a first position of a first stage and a second position of the second stage; indicating the flow manageme ...



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