Patents by Inventor Anthony L. Marks
Anthony L. Marks 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).
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Patent number: 9163576Abstract: 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.Type: GrantFiled: September 23, 2011Date of Patent: October 20, 2015Assignee: GM Global Technology Operations LLCInventors: Kevin A. Sherwin, Anthony L. Marks, Robert J. Horner, Wenbo Wang, Layne K. Wiggins, Antonio E. Bartolomeo
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Patent number: 8550055Abstract: A control system includes an engine mode transition module that initiates a deactivated mode to deactivate at least one cylinder. A scheduling module schedules a command to disable a spark plug at least one engine cycle after a command to disable a fuel injector for the at least one cylinder.Type: GrantFiled: March 10, 2010Date of Patent: October 8, 2013Inventors: Eric B. Ferch, Anthony L. Marks, Ryan Bruss, Ronald M. Wozniak, Eloy Martinez, Jon C Wasberg
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Patent number: 8495984Abstract: An engine control system for a vehicle includes a variable displacement module that deactivates N of M cylinders of an engine during a fuel management mode. N is an integer and M is an integer greater than 1. A spark control module generates a spark timing signal for the N cylinders based on a pre-dwell time and a fuel management dwell modifier during the fuel management mode. The spark control module reduces dwell time of the N cylinders during the fuel management mode based on the fuel management dwell modifier.Type: GrantFiled: October 26, 2009Date of Patent: July 30, 2013Inventors: Robert W. Riegel, Yujiro Suwa, Ronald M. Wozniak, Anthony L. Marks
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Publication number: 20130006496Abstract: 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.Type: ApplicationFiled: September 23, 2011Publication date: January 3, 2013Applicant: GM Global Technology Operations LLCInventors: Kevin A. Sherwin, Anthony L. Marks, Robert J. Horner, Wenbo Wang, Layne K. Wiggins, Antonio E. Bartolomeo
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Publication number: 20110220068Abstract: A control system includes an engine mode transition module that initiates a deactivated mode to deactivate at least one cylinder. A scheduling module schedules a command to disable a spark plug at least one engine cycle after a command to disable a fuel injector for the at least one cylinder.Type: ApplicationFiled: March 10, 2010Publication date: September 15, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Eric B. Ferch, Anthony L. Marks, Ryan Bruss, Ronald M. Wozniak, Eloy Martinez, Jon C. Wasberg
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Publication number: 20110094475Abstract: An engine control system for a vehicle includes a variable displacement module that deactivates N of M cylinders of an engine during a fuel management mode. N is an integer and M is an integer greater than 1. A spark control module generates a spark timing signal for the N cylinders based on a pre-dwell time and a fuel management dwell modifier during the fuel management mode. The spark control module reduces dwell time of the N cylinders during the fuel management mode based on the fuel management dwell modifier.Type: ApplicationFiled: October 26, 2009Publication date: April 28, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Robert W. Riegel, Yujiro Suwa, Ronald M. Wozniak, Anthony L. Marks
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Patent number: 7814874Abstract: A camshaft (cam) phaser control system for an engine includes a first camshaft having a first target wheel. A second camshaft has a second target wheel. A cam position sensor detects said first and second target wheels and generates camshaft position data based on said first and second target wheels.Type: GrantFiled: March 23, 2007Date of Patent: October 19, 2010Inventors: Ronald J. Kubani, Coburn C. Bland, Jr., Anthony L. Marks
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Patent number: 7562558Abstract: A knock sensor diagnostic system may include a knock sensor. A bias circuit applies a bias voltage to the knock sensor. An input circuit receives an input signal based on the bias voltage. A control module indicates a short circuit associated with the knock sensor based on the input signal. A knock sensor diagnostic system may also or alternatively include a signal generator that generates and applies a test signal with a predetermined frequency to the knock sensor. Another input circuit receives another input signal that is based on the test signal. A control module indicates an open circuit associated with the knock sensor based on the other input signal.Type: GrantFiled: September 11, 2007Date of Patent: July 21, 2009Assignee: GM Global Technology Operations, Inc.Inventors: Robert J. Horner, Craig M. Sawdon, Thomas A Szpakowski, Brian Carl Nelson, Karl T. Kiebel, Marilyn L Kindermann, Anthony L. Marks
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Patent number: 7519465Abstract: 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.Type: GrantFiled: November 15, 2007Date of Patent: April 14, 2009Assignee: GM Global Technology Operations, Inc.Inventors: Antonio E. Bartolomeo, Richard M. Frank, Ronald J. Kubani, Jordan R. Lee, Anthony L. Marks, Blake B. Nye, John F. Van Gilder
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Publication number: 20090064762Abstract: A knock sensor diagnostic system may include a knock sensor. A bias circuit applies a bias voltage to the knock sensor. An input circuit receives an input signal based on the bias voltage. A control module indicates a short circuit associated with the knock sensor based on the input signal. A knock sensor diagnostic system may also or alternatively include a signal generator that generates and applies a test signal with a predetermined frequency to the knock sensor. Another input circuit receives another input signal that is based on the test signal. A control module indicates an open circuit associated with the knock sensor based on the other input signal.Type: ApplicationFiled: September 11, 2007Publication date: March 12, 2009Inventors: Robert J. Horner, Craig M. Sawdon, Thomas A. Szpakowski, Brian Carl Nelson, Karl T. Kiebel, Marilyn L. Kindermann, Anthony L. Marks
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Publication number: 20090030586Abstract: 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.Type: ApplicationFiled: November 15, 2007Publication date: January 29, 2009Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Antonio E. Bartolomeo, Richard M. Frank, Ronald J. Kubani, Jordan R. Lee, Anthony L. Marks, Blake B. Nye, John F. Van Gilder
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Publication number: 20080230024Abstract: A camshaft (cam) phaser control system for an engine includes a first camshaft having a first target wheel. A second camshaft has a second target wheel. A cam position sensor detects said first and second target wheels and generates camshaft position data based on said first and second target wheels.Type: ApplicationFiled: March 23, 2007Publication date: September 25, 2008Inventors: Ronald J. Kubani, Coburn C. Bland, Anthony L. Marks
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Patent number: 5570016Abstract: A method and apparatus for detecting an engine crankshaft angular position which provides for fast starting of the engine. A target wheel and sensor combination generate an analog signal which is convened into a 24 bit digital output which repeats every 360.degree. rotation of the crankshaft. Each bit represents a particular angular position of the crankshaft. Any 6 sequential bits in the repeating 24 bit digital output sequence form a unique pattern. By monitoring the first six bits generated (90.degree. of crankshaft rotation) during startup, a crankshaft angular position can be determined, thereby enabling fast starting of the engine.Type: GrantFiled: June 1, 1994Date of Patent: October 29, 1996Assignee: General Motors CorporationInventors: Thaddeus Schroeder, Bruno P. B. Lequesne, Raymond O. Butler, Jr., Anthony L. Marks, Thomas A. Perry, John R. Bradley
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Patent number: 4596218Abstract: An LPP ignition timing control for an internal combustion engine of the type having a normal combustion mode characterized by combustion pressure peaks compatible with closed loop LPP ignition timing control and an abnormal combustion mode which may not be so compatible includes a closed loop control apparatus effective to sense LPP in the combustion chamber, generate an LPP value therefrom, store a DLPP value indicative of a desired LPP, and compare the LPP value and stored DLPP value and adjust ignition timing to reduce the difference therebetween. During a sensed abnormal combustion mode, the control changes the ignition timings for ignition events toward predetermined, stored ignition timings and substitutes for the stored DLPP value temporary DLPP values which are a predetermined crankshaft angle in advance of the generated LPP values and limited in the retard direction to the stored DLPP value.Type: GrantFiled: July 31, 1985Date of Patent: June 24, 1986Assignee: General Motors CorporationInventors: Philip A. Karau, Anthony L. Marks, James H. Currie
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Patent number: 4481585Abstract: A plurality of electrical load switches of the type operable to at least two operating conditions by the actuation of an operating member are connected in respective motor vehicle load circuits and are mounted in a switching unit having an actuating mechanism for actuating the switch operating members that is selectively locatable in each of a plurality of switch operating positions in each of which it is in register with an operating member. The switching unit is controlled by a microprocessor that effects the locating of the actuating mechanism in the switch operating position in which it may actuate the operating member of a load switch selected to be operated and the operating of the actuating mechanism when so located in response to function select electrical signals that indicate the load switches selected for operation.Type: GrantFiled: August 3, 1981Date of Patent: November 6, 1984Assignee: General Motors CorporationInventors: Gerald O. Huntzinger, Raymond O. Butler, Jr., Lewis R. Hetzler, John Delaplane, Anthony L. Marks