1
Kenneth P Dudek, Ronald A Davis, Layne K Wiggins, Lee C Walker: Nonlinear fuel dynamics control with lost fuel compensation. GM Global Technology Operations, Christopher DeVries, July 17, 2007: US07246004 (4 worldwide citation)

A fuel control system delivers fuel to an engine cylinder and compensates for lost fuel. The fuel control system comprises a fuel dynamics module that determines a fuel dynamics model that is indicative of fuel behavior. The fuel dynamic module determines an inverse of the fuel dynamics model, recei ...


2
Byungho Lee, B Jerry Song, Lee C Walker: Method and system for enabling cylinder balancing at low idle speed using crankshaft speed sensor. November 27, 2012: US08316821 (1 worldwide citation)

A method and control system for controlling the idle speed of an engine includes an engine speed module that generates an engine speed signal. The control system also includes an actuator control module that regulates an engine speed based on a desired idle speed when an engine idle mode is enabled ...


3
Lee C Walker, B Jerry Song, Joseph Allen Griffin, Byungho Lee: Idle speed reduction systems and methods. January 29, 2013: US08360030 (1 worldwide citation)

An idle control system for a vehicle comprises an actuator control module, a torque determination module, a deviation analysis module, and an idle speed reduction module. The actuator control module regulates an engine speed based on a desired idle speed when an engine idle mode is enabled. The torq ...


4
Jose C Zavala Jurado, Lee C Walker: Control system and method based on estimated engine speed. July 23, 2013: US08494756

A control system includes a speed determination module and a profile estimation module. The speed determination module determines previous engine speeds based on a predetermined profile of a crankshaft position sensor and previous pulse times corresponding to teeth on the crankshaft position sensor. ...


5
Lee C Walker: Fuel correction systems and methods. July 24, 2012: US08229651

A fuel control system for a vehicle comprises a fuel delivery module, a torque ratio determination module, and a correction factor module. The fuel delivery module supplies first and second amounts of diesel fuel to a cylinder of an engine during first and second combustion cycles for the cylinder, ...


6
Kenneth P Dudek, Ronald A Davis, Layne K Wiggins, Lee C Walker: Nonlinear fuel dynamics control with lost fuel compensation. Christopher DeVries General Motors Corporation, November 30, 2006: US20060271268-A1

A fuel control system delivers fuel to an engine cylinder and compensates for lost fuel. The fuel control system comprises a fuel dynamics module that determines a fuel dynamics model that is indicative of fuel behavior. The fuel dynamic module determines an inverse of the fuel dynamics model, recei ...


7
Lee C Walker, B Jerry Song, Joseph Allen Griffin, Byungho Lee: Idle speed reduction systems and methods. Gm Global Technology Operations, September 22, 2011: US20110226216-A1

An idle control system for a vehicle comprises an actuator control module, a torque determination module, a deviation analysis module, and an idle speed reduction module. The actuator control module regulates an engine speed based on a desired idle speed when an engine idle mode is enabled. The torq ...


8
Byungho Lee, B Jerry Song, Lee C Walker: Method and system for enabling cylinder balancing at low idle speed using crankshaft speed sensor. Gm Global Technology Operations, October 6, 2011: US20110239984-A1

A method and control system for controlling the idle speed of an engine includes an engine speed module that generates an engine speed signal. The control system also includes an actuator control module that regulates an engine speed based on a desired idle speed when an engine idle mode is enabled ...


9
Lee C Walker, B Jerry Song, Zhiping Steven Liu: Method and system for reducing turbo lag in an engine. Gm Global Technology Operations, October 20, 2011: US20110257867-A1

A method and control module for controlling an engine includes a requested torque module that generates a requested torque and a turbo boost level module that determines a desired boost level based on the driver requested torque. The control module further includes a pulse determination module that ...


10
Lee C Walker: Fuel correction systems and methods. Gm Global Technology Operations, July 28, 2011: US20110184628-A1

A fuel control system for a vehicle comprises a fuel delivery module, a torque ratio determination module, and a correction factor module. The fuel delivery module supplies first and second amounts of diesel fuel to a cylinder of an engine during first and second combustion cycles for the cylinder, ...