Antonio E Bartolomeo, Age 6032542 Shawn Dr, Warren, MI 48089

8226525, Jul 24, 2012

Sep 1, 2009

12/551592

Shawn H. Swales - Canton MI, US
Hong Yang - Rochester Hills MI, US
Antonio E. Bartolomeo - Warren MI, US

GM Global Technology Operations LLC - Detroit MI

B60K 1/02
B60W 10/04
F02N 11/08

477 3, 180 65285, 701113, 1231794, 1231921

A hybrid powertrain includes an engine having a crankshaft, and a hybrid transmission having an input member, an output member, and at least one motor/generator operable to provide or receive torque. A damper connects the crankshaft with the input member. A bi-directional rotational position sensing system operatively connects with either the crankshaft or an input side of the damper, and is configured to sense the rotational position and direction of the crankshaft, and provide a position signal indicative thereof. At least one controller is configured to receive the position signal and to provide a torque command to the motor/generator based at least in part on the position signal. The torque command is operable to cause the motor/generator to substantially cancel an expected engine torque pulse associated with the sensed rotational position during starting of the engine with the damper open. A method for controlling the hybrid powertrain is provided.

2009003, Jan 29, 2009

Nov 15, 2007

11/940693

Antonio E. Bartolomeo - Warren MI, US
Richard M. Frank - Beverly Hills MI, US
Ronald J. Kubani - Highland MI, US
Jordan R. Lee - Lake Orion MI, US
Anthony L. Marks - Novi MI, US
Blake B. Nye - Sterling Heights MI, US
John F. Van Gilder - Webberville MI, US

GM GLOBAL TECHNOLOGY OPERATIONS, INC. - DETROIT MI

F02D 13/02

701102

A method of correlating a rotational position of a crankshaft to a rotational position of a camshaft includes determining a stretch value of a timing connection, which drivingly couples the crankshaft and the camshaft, and calculating a crankshaft to camshaft rotational position value indicative of the rotational position of the crankshaft with respect to the rotational position of the camshaft. The crankshaft to camshaft rotational position value is compensated based on the stretch value to provide a compensated crankshaft to camshaft rotational position value and whether the rotational position of the crankshaft correlates to the rotational position of the camshaft is determined based on the compensated crankshaft to camshaft rotational position value.

2013000, Jan 3, 2013

Sep 23, 2011

13/242881

Kevin A. Sherwin - Farmington Hills MI, US
Anthony L. Marks - Novi MI, US
Robert J. Horner - Dexter MI, US
Wenbo Wang - Novi MI, US
Layne K. Wiggins - Dexter MI, US
Antonio E. Bartolomeo - Warren MI, US

GM Global Technology Operations LLC - Detroit MI

F02D 41/30

701103

A system for an engine includes an edge detection module and a correlation calibration module. The edge detection module (i) detects edges of a camshaft of the engine using a camshaft position sensor, and (ii) detects edges of a crankshaft of the engine using a crankshaft position sensor. The correlation calibration module calibrates a correlation between the crankshaft and the camshaft based on the detected edges of the crankshaft and the camshaft, respectively.