Patents by Inventor John P. Kresse
John P. Kresse 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: 8718886Abstract: A system and method for controlling double transition shifts in an automatic transmission having multiple gear sections. During a double transition shift, the system performs simultaneous closed loop control of the primary oncoming clutch in the primary gear section and the secondary off-going clutch of the secondary gear section. Before the input shaft of the secondary gear section is fully pulled down or the secondary off-going clutch becomes overheated, the system switches closed loop control of the input shaft to the secondary on-coming clutch of the secondary gear section. The system utilizes model-based calculations to determine the initial clutch pressure settings when a clutch enters closed loop control.Type: GrantFiled: July 3, 2013Date of Patent: May 6, 2014Assignee: Allison Transmission, Inc.Inventors: John Andrew Byerly, John P. Kresse, Mark A. Rains, Jeffrey K. Runde
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Publication number: 20140019023Abstract: A system and method for controlling double transition shifts in an automatic transmission having multiple gear sections. During a double transition shift, the system performs simultaneous closed loop control of the primary oncoming clutch in the primary gear section and the secondary off-going clutch of the secondary gear section. Before the input shaft of the secondary gear section is fully pulled down or the secondary off-going clutch becomes overheated, the system switches closed loop control of the input shaft to the secondary on-coming clutch of the secondary gear section. The system utilizes model-based calculations to determine the initial clutch pressure settings when a clutch enters closed loop control.Type: ApplicationFiled: July 3, 2013Publication date: January 16, 2014Inventors: John Andrew Byerly, John P. Kresse, Mark A. Rains, Jeffrey K. Runde
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Patent number: 8571771Abstract: Methods and systems for managing acceleration of a motor vehicle having an automatic transmission by controlling transmission turbine acceleration are provided. A desired transmission turbine acceleration is determined based on vehicle speed, turbine speed, and other information obtained from the vehicle transmission. One or more torque limits are determined as a function of the turbine acceleration. The torque limits are applied to manage acceleration of the vehicle.Type: GrantFiled: July 31, 2012Date of Patent: October 29, 2013Assignee: Allison Transmission, Inc.Inventor: John P. Kresse
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Patent number: 8483919Abstract: A system and method for controlling double transition shifts in an automatic transmission having multiple gear sections. During a double transition shift, the system performs simultaneous closed loop control of the primary oncoming clutch in the primary gear section and the secondary off-going clutch of the secondary gear section. Before the input shaft of the secondary gear section is fully pulled down or the secondary off-going clutch becomes overheated, the system switches closed loop control of the input shaft to the secondary on-coming clutch of the secondary gear section. The system utilizes model-based calculations to determine the initial clutch pressure settings when a clutch enters closed loop control.Type: GrantFiled: November 11, 2011Date of Patent: July 9, 2013Assignee: Allison Transmission, Inc.Inventors: John Andrew Byerly, John P. Kresse, Mark A. Rains, Jeffrey K. Runde
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Publication number: 20130066528Abstract: The present invention provides a method of controlling input torque of a powered vehicle. The vehicle includes a transmission having an input shaft, an output shaft, and a countershaft. The method includes providing input torque to the input shaft, determining a rotational acceleration of the countershaft, and measuring vehicle speed. The method also includes determining a threshold based on the measured vehicle speed. The measured countershaft acceleration is compared to the threshold and the input torque is controlled based on the result of the comparison.Type: ApplicationFiled: September 7, 2012Publication date: March 14, 2013Applicant: Allison Transmission, Inc.Inventors: John P. Kresse, Avery T. Sheets
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Publication number: 20120296538Abstract: Methods and systems for managing acceleration of a motor vehicle having an automatic transmission by controlling transmission turbine acceleration are provided. A desired transmission turbine acceleration is determined based on vehicle speed, turbine speed, and other information obtained from the vehicle transmission. One or more torque limits are determined as a function of the turbine acceleration. The torque limits are applied to manage acceleration of the vehicle.Type: ApplicationFiled: July 31, 2012Publication date: November 22, 2012Inventor: John P. Kresse
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Patent number: 8290689Abstract: A control system comprising a brake torque determination module that determines a desired brake torque and a vane position determination module that determines a vane position based on an engine speed and the desired brake torque, and that adjusts the vane position to a position between an open position and a closed position. A method comprising determining a desired brake torque, determining a vane position based on an engine speed and the desired brake torque, and adjusting the vane position to a position between an open position and a closed position.Type: GrantFiled: April 14, 2009Date of Patent: October 16, 2012Inventors: Steven J. Andrasko, John P. Kresse, Kevin L. Kluemper, Brett R. Caldwell
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Patent number: 8275528Abstract: Methods and systems for managing acceleration of a motor vehicle having an automatic transmission by controlling transmission turbine acceleration are provided. A desired transmission turbine acceleration is determined based on vehicle speed, turbine speed, and other information obtained from the vehicle transmission. One or more torque limits are determined as a function of the turbine acceleration. The torque limits are applied to manage acceleration of the vehicle.Type: GrantFiled: February 21, 2008Date of Patent: September 25, 2012Assignee: Allison Transmission, Inc.Inventor: John P Kresse
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Publication number: 20120123654Abstract: A system and method for controlling double transition shifts in an automatic transmission having multiple gear sections. During a double transition shift, the system performs simultaneous closed loop control of the primary oncoming clutch in the primary gear section and the secondary off-going clutch of the secondary gear section. Before the input shaft of the secondary gear section is fully pulled down or the secondary off-going clutch becomes overheated, the system switches closed loop control of the input shaft to the secondary on-coming clutch of the secondary gear section. The system utilizes model-based calculations to determine the initial clutch pressure settings when a clutch enters closed loop control.Type: ApplicationFiled: November 11, 2011Publication date: May 17, 2012Inventors: John Andrew BYERLY, John P. KRESSE, Mark A. RAINS, Jeffrey K. RUNDE
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Publication number: 20100258080Abstract: A control system comprising a brake torque determination module that determines a desired brake torque and a vane position determination module that determines a vane position based on an engine speed and the desired brake torque, and that adjusts the vane position to a position between an open position and a closed position. A method comprising determining a desired brake torque, determining a vane position based on an engine speed and the desired brake torque, and adjusting the vane position to a position between an open position and a closed position.Type: ApplicationFiled: April 14, 2009Publication date: October 14, 2010Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: STEVEN J. ANDRASKO, John P. Kresse, Kevin L. Kluemper, Brett R. Caldwell
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Patent number: 7806803Abstract: A method for controlling a transmission in a motor vehicle includes determining a temperature of a fluid in the transmission, determining whether the torque converter lockup clutch is applied, and determining an engine torque of the motor vehicle. Then, the torque converter lockup clutch is applied and the transmission is prohibited from up-shifting if the temperature of the fluid exceeds a threshold, the torque converter lockup clutch is not applied, and the engine torque exceeds a second threshold. Next, a tractive effort of the motor vehicle is determined and the torque converter lockup clutch is deactivated when the temperature of the fluid is less than a third threshold, the tractive effort is less than a fourth threshold, or the engine torque is less than the second threshold.Type: GrantFiled: April 21, 2008Date of Patent: October 5, 2010Assignee: GM Global Technology Operations, Inc.Inventors: Jeffrey E Shultz, Mark A. Rushing, Vickie M. Rushing, legal representative, John P. Kresse
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Patent number: 7664588Abstract: A method is provided for determining variance of actual engine torque from reported engine torque, including configuring a controller with an algorithm to calculate the ratios of current and maximum engine torque to reported torque upon the initiation of high-throttle 1-2 shift, high-throttle 2-3 shift, high-throttle torque converter lockup, and at maximum Engine Rating Torque Function for each high-throttle torque converter drive cycle. An apparatus is also provided for detecting engine torque variance in a vehicle having an engine, a throttle, and a torque converter, the apparatus comprising a controller with memory and an algorithm for calculating the maximum and current engine torque variance upon the occurrence a predetermined throttle condition, and storing the values in accessible memory, wherein the controller is configured to initiate the algorithm upon the occurrence of one of the throttle conditions, and wherein the throttle and torque converter each communicate speed signals to the controller.Type: GrantFiled: November 30, 2006Date of Patent: February 16, 2010Assignee: GM Global Technology Operations, Inc.Inventors: Jeffrey K. Runde, John P. Kresse, Brett R. Caldwell, Andrew L. Mitchell, Phillip F. Mc Cauley
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Publication number: 20090215586Abstract: Methods and systems for managing acceleration of a motor vehicle having an automatic transmission by controlling transmission turbine acceleration are provided. A desired transmission turbine acceleration is determined based on vehicle speed, turbine speed, and other information obtained from the vehicle transmission. One or more torque limits are determined as a function of the turbine acceleration. The torque limits are applied to manage acceleration of the vehicle.Type: ApplicationFiled: February 21, 2008Publication date: August 27, 2009Inventor: John P. Kresse
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Patent number: 7510505Abstract: A method of releasing a lockup clutch for a fluid coupling assembly disposed between an engine and an automatically shiftable transmission during a negative engine torque mode of operation is provided. The method includes the steps of: A) determining a current engine torque value prior to commanding the engine to ramp to a target engine torque value; B) commanding the engine to a target engine torque value wherein the target engine torque value is one of a zero and near zero value; C) holding the engine at the target engine torque value; and D) releasing or disengaging the lockup clutch when the engine is operating at the target engine torque value. A powertrain is also provided having a controller sufficiently configured to operate according to the method of the present invention.Type: GrantFiled: August 29, 2006Date of Patent: March 31, 2009Assignee: General Motors CorporationInventors: Kevin L. Kluemper, John P. Kresse
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Patent number: 7499784Abstract: A method for selecting a shift schedule for a transmission in a motor vehicle is provided. The method includes the steps of determining whether a signal-to-noise ratio exceeds a threshold and calculating a tractive effort of the motor vehicle. A vehicle mass and a road grade is then estimated from the tractive effort using a recursive least squares estimator with multiple forgetting when the signal-to-noise ratio exceeds the threshold. A vehicle mass is selected and the road grade estimated from the vehicle mass and tractive effort when the signal-to-noise ratio does not exceed the threshold. A shift schedule is then selected based on the vehicle mass and the estimated road grade.Type: GrantFiled: April 9, 2007Date of Patent: March 3, 2009Assignee: General Motors CorporationInventor: John P. Kresse
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Publication number: 20080312034Abstract: A method for controlling a transmission in a motor vehicle includes determining a temperature of a fluid in the transmission, determining whether the torque converter lockup clutch is applied, and determining an engine torque of the motor vehicle. Then, the torque converter lockup clutch is applied and the transmission is prohibited from up-shifting if the temperature of the fluid exceeds a threshold, the torque converter lockup clutch is not applied, and the engine torque exceeds a second threshold. Next, a tractive effort of the motor vehicle is determined and the torque converter lockup clutch is deactivated when the temperature of the fluid is less than a third threshold, the tractive effort is less than a fourth threshold, or the engine torque is less than the second threshold.Type: ApplicationFiled: April 21, 2008Publication date: December 18, 2008Applicant: GENERAL MOTORS CORPORATIONInventors: Jeffrey E. Shultz, Mark A. Rushing, Vickie M. Rushing, John P. Kresse
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Publication number: 20080249693Abstract: A method for selecting a shift schedule for a transmission in a motor vehicle is provided. The method includes the steps of determining whether a signal-to-noise ratio exceeds a threshold and calculating a tractive effort of the motor vehicle. A vehicle mass and a road grade is then estimated from the tractive effort using a recursive least squares estimator with multiple forgetting when the signal-to-noise ratio exceeds the threshold. A vehicle mass is selected and the road grade estimated from the vehicle mass and tractive effort when the signal-to-noise ratio does not exceed the threshold. A shift schedule is then selected based on the vehicle mass and the estimated road grade.Type: ApplicationFiled: April 9, 2007Publication date: October 9, 2008Inventor: John P. Kresse
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Publication number: 20080148710Abstract: The method of the present invention is adapted to protect an exhaust aftertreatment system by preventing the system from becoming clogged and/or damaged during periods of light engine load. According to a preferred embodiment, the present invention protects the exhaust aftertreatment system by increasing the load on the engine during periods of light engine load and/or low exhaust temperature.Type: ApplicationFiled: March 5, 2008Publication date: June 26, 2008Applicant: GENERAL MOTORS CORPORATIONInventor: John P. Kresse
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Publication number: 20080133078Abstract: A method is provided for determining variance of actual engine torque from reported engine torque, including configuring a controller with an algorithm to calculate the ratios of current and maximum engine torque to reported torque upon the initiation of high-throttle 1-2 shift, high-throttle 2-3 shift, high-throttle torque converter lockup, and at maximum Engine Rating Torque Function for each high-throttle torque converter drive cycle. An apparatus is also provided for detecting engine torque variance in a vehicle having an engine, a throttle, and a torque converter, the apparatus comprising a controller with memory and an algorithm for calculating the maximum and current engine torque variance upon the occurrence a predetermined throttle condition, and storing the values in accessible memory, wherein the controller is configured to initiate the algorithm upon the occurrence of one of the throttle conditions, and wherein the throttle and torque converter each communicate speed signals to the controller.Type: ApplicationFiled: November 30, 2006Publication date: June 5, 2008Applicant: GENERAL MOTORS CORPORATIONInventors: JEFFREY K. RUNDE, John P. Kresse, Brett R. Caldwell, Andrew L. Mitchell, Phillip F. McCauley
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Patent number: 7380396Abstract: The method of the present invention is adapted to protect an exhaust aftertreatment system by preventing the system from becoming clogged and/or damaged during periods of light engine load. According to a preferred embodiment, the present invention protects the exhaust aftertreatment system by increasing the load on the engine during periods of light engine load and/or low exhaust temperature.Type: GrantFiled: May 25, 2005Date of Patent: June 3, 2008Assignee: General Motors CorporationInventor: John P. Kresse