Patents by Inventor Daniel Reed Dempsey
Daniel Reed Dempsey 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: 11673554Abstract: A method of substantially preventing road speed excursions while traversing a road grade includes: determining, by a controller, a predicted over speed for a vehicle during an upcoming downhill grade based on a difference between a predicted engine braking power of the vehicle and an amount of braking power that substantially prevents a speed of the vehicle from exceeding a speed threshold; and responsive to the determination, controlling, by the controller, one or more components of the vehicle to substantially prevent the vehicle from exceeding the speed threshold.Type: GrantFiled: March 8, 2021Date of Patent: June 13, 2023Assignee: Cummins Inc.Inventors: Daniel Reed Dempsey, Joseph R. Dynes, Nathanael G. Long
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Patent number: 11091142Abstract: Apparatuses, methods, and systems comprising vehicle fleet management systems are disclosed. One embodiment is a method that provides a plurality of predetermined powertrain trim templates, where each of the plurality of predetermined powertrain trim templates specifies a plurality of powertrain trim parameters implementable by an electronic powertrain control system to control one or more operational response characteristics of the powertrain. The method includes selecting one of the plurality of predetermined powertrain trim templates and one of a plurality of vehicles of a vehicle fleet to receive the selected one of the plurality of predetermined powertrain trim templates. In response to the act of selecting one of the plurality of predetermined powertrain trim templates, the method transmits via a telematics network one or more modified powertrain trim parameters.Type: GrantFiled: October 3, 2018Date of Patent: August 17, 2021Assignee: Cummins Inc.Inventors: Christopher Michael Remington, Daniel Reed Dempsey, Steven W. Reedy, Jason A. Owens, Radhika Cherukuru
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Publication number: 20210188271Abstract: A method of substantially preventing road speed excursions while traversing a road grade includes: determining, by a controller, a predicted over speed for a vehicle during an upcoming downhill grade based on a difference between a predicted engine braking power of the vehicle and an amount of braking power that substantially prevents a speed of the vehicle from exceeding a speed threshold; and responsive to the determination, controlling, by the controller, one or more components of the vehicle to substantially prevent the vehicle from exceeding the speed threshold.Type: ApplicationFiled: March 8, 2021Publication date: June 24, 2021Applicant: Cummins Inc.Inventors: Daniel Reed Dempsey, Joseph R. Dynes, Nathanael G. Long
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Patent number: 11034352Abstract: A control system, apparatus, and method integrates management of vehicle torque limits and gear shifting of a vehicle by determining future engine power requirements from the forward-looking route conditions to improve performance and drivability of the vehicle over what is achievable through default and/or currently selected torque limits and gear state shifting strategies.Type: GrantFiled: October 8, 2019Date of Patent: June 15, 2021Assignee: Cummins Inc.Inventors: Nirav Shah, Daniel Reed Dempsey
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Patent number: 10988140Abstract: A powertrain including a prime mover and an electronically controllable clutch. The powertrain structured selectably engages the clutch to provide power from the prime mover to drive one or more ground contacting wheels and to selectably disengage the clutch to decouple with one or more ground contacting wheels. The electronic control system operatively communicates with the prime mover and the electronically controllable clutch, and uses a predictive cruise control (PCC) controller and an idle coast management (ICM) controller, to control vehicle speed during concurrent operation of the PCC controller and the ICM controller.Type: GrantFiled: December 15, 2017Date of Patent: April 27, 2021Assignee: Cummins Inc.Inventors: Kenneth M. Follen, Vivek Anand Sujan, Daniel Reed Dempsey, Tejas Shrikant Kinjawadekar, Craig Michael Calmer, Jairo Andres Sandoval Leon, Oruganti Prashanth Sharma
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Publication number: 20210101597Abstract: A control system, apparatus, and method integrates management of vehicle torque limits and gear shifting of a vehicle by determining future engine power requirements from the forward-looking route conditions to improve performance and drivability of the vehicle over what is achievable through default and/or currently selected torque limits and gear state shifting strategies.Type: ApplicationFiled: October 8, 2019Publication date: April 8, 2021Inventors: Nirav Shah, Daniel Reed Dempsey
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Patent number: 10960884Abstract: A system, method, and apparatus include a controller structured to predict a change in speed of a vehicle in advance of upcoming terrain and inhibit a coasting event if the speed exceeds a limit. In one form a velocity of the vehicle is predicted using a physics based model of the vehicle within a look ahead window in front of a vehicle. Such a look ahead window can be distance or time based. In another, speed of a vehicle is monitored during a coasting event and is compared against a threshold to determine whether to remain coasting or re-engage an engine to a driveline. The threshold is a function of road grade, and permits a larger deviation from set speed at low grade than at high grade. The function can be based on road grade and vehicle weight.Type: GrantFiled: June 11, 2020Date of Patent: March 30, 2021Assignee: Cummins Inc.Inventors: Oruganti Prashanth Sharma, Kenneth M. Follen, Tejas Shrikant Kinjawadekar, Vivek Anand Sujan, Daniel Reed Dempsey, Apurva Chunodkar, Nathanael G. Long, Jairo Andres Sandoval Leon
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Publication number: 20210070299Abstract: A method of substantially preventing road speed excursions while traversing a road grade event includes receiving, by a controller, vehicle operations data regarding operation of a vehicle and road grade data regarding an upcoming road grade of a path ahead of the vehicle. The method additionally includes determining, by the controller, an amount of braking power that substantially prevents the vehicle from exceeding a speed threshold regarding operation of the vehicle based on the road grade and vehicle operations data, and determining an amount of engine braking power based on a current transmission setting. The method further includes controlling, by the controller, a transmission setting in response to a determination that the amount of engine braking power is less than the amount of braking power.Type: ApplicationFiled: September 5, 2019Publication date: March 11, 2021Inventors: Daniel Reed Dempsey, Joseph R. Dynes, Nathanael G. Long
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Patent number: 10940862Abstract: A method of substantially preventing road speed excursions while traversing a road grade event includes receiving, by a controller, vehicle operations data regarding operation of a vehicle and road grade data regarding an upcoming road grade of a path ahead of the vehicle. The method additionally includes determining, by the controller, an amount of braking power that substantially prevents the vehicle from exceeding a speed threshold regarding operation of the vehicle based on the road grade and vehicle operations data, and determining an amount of engine braking power based on a current transmission setting. The method further includes controlling, by the controller, a transmission setting in response to a determination that the amount of engine braking power is less than the amount of braking power.Type: GrantFiled: September 5, 2019Date of Patent: March 9, 2021Assignee: Cummins Inc.Inventors: Daniel Reed Dempsey, Joseph R. Dynes, Nathanael G. Long
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Publication number: 20200346649Abstract: A system, method, and apparatus include a controller structured to predict a change in speed of a vehicle in advance of upcoming terrain and inhibit a coasting event if the speed exceeds a limit. In one form a velocity of the vehicle is predicted using a physics based model of the vehicle within a look ahead window in front of a vehicle. Such a look ahead window can be distance or time based. In another, speed of a vehicle is monitored during a coasting event and is compared against a threshold to determine whether to remain coasting or re-engage an engine to a driveline. The threshold is a function of road grade, and permits a larger deviation from set speed at low grade than at high grade. The function can be based on road grade and vehicle weight.Type: ApplicationFiled: June 11, 2020Publication date: November 5, 2020Inventors: Oruganti Prashanth Sharma, Kenneth M. Follen, Tejas Shrifant Kinjawadekar, Vivek Anand Sujan, Daniel Reed Dempsey, Apurva Chunodkar, Nathanael G. Long, Jairo Andres Sandoval Leon
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Patent number: 10717440Abstract: A system, method, and apparatus include a controller structured to predict a change in speed of a vehicle in advance of upcoming terrain and inhibit a coasting event if the speed exceeds a limit. In one form a velocity of the vehicle is predicted using a physics based model of the vehicle within a look ahead window in front of a vehicle. Such a look ahead window can be distance or time based. In another, speed of a vehicle is monitored during a coasting event and is compared against a threshold to determine whether to remain coasting or re-engage an engine to a driveline. The threshold is a function of road grade, and permits a larger deviation from set speed at low grade than at high grade. The function can be based on road grade and vehicle weight.Type: GrantFiled: April 26, 2018Date of Patent: July 21, 2020Assignee: Cummins Inc.Inventors: Oruganti Prashanth Sharma, Kenneth M. Follen, Tejas Shrikant Kinjawadekar, Vivek Anand Sujan, Daniel Reed Dempsey, Apurva Chunodkar, Nathanael G. Long, Jairo Andres Sandoval Leon
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Patent number: 10479360Abstract: A system, method, and apparatus includes management of coasting during operation of a vehicle equipped with a predictive cruise control system.Type: GrantFiled: July 23, 2019Date of Patent: November 19, 2019Assignee: Cummins Inc.Inventors: Joseph R. Dynes, Daniel Reed Dempsey, Kenneth M. Follen, Howard Robert Frost, Oruganti Prashanth Sharma, Ian Fredrick Lowry, Nathanael G. Long
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Publication number: 20190344794Abstract: A system, method, and apparatus includes management of coasting during operation of a vehicle equipped with a predictive cruise control system.Type: ApplicationFiled: July 23, 2019Publication date: November 14, 2019Inventors: Joseph R. Dynes, Daniel Reed Dempsey, Kenneth M. Follen, Howard Robert Frost, Oruganti Prashanth Sharma, Ian Fredrick Lowry, Nathanael G. Long
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Patent number: 10399569Abstract: A system, method, and apparatus includes management of coasting during operation of a vehicle equipped with a predictive cruise control system.Type: GrantFiled: November 3, 2016Date of Patent: September 3, 2019Assignee: Cummins Inc.Inventors: Joseph R. Dynes, Daniel Reed Dempsey, Kenneth M. Follen, Howard Robert Frost, Oruganti Prashanth Sharma, Ian Fredrick Lowry, Nathanael G. Long
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Patent number: 10393195Abstract: A powertrain including a prime mover and an electronically controllable clutch. The powertrain structured selectably engages the clutch to provide power from the prime mover to drive one or more ground contacting wheels and to selectably disengage the clutch to decouple with one or more ground contacting wheels. The electronic control system operatively communicates with the prime mover and the electronically controllable clutch, and uses a predictive cruise control (PCC) controller and an idle coast management (ICM) controller, to control vehicle speed during concurrent operation of the PCC controller and the ICM controller.Type: GrantFiled: December 15, 2017Date of Patent: August 27, 2019Assignee: Cummins Inc.Inventors: Kenneth M. Follen, Vivek Anand Sujan, Daniel Reed Dempsey, Tejas Shrikant Kinjawadekar, Craig Michael Calmer, Jairo Andres Sandoval Leon, Oruganti Prashanth Sharma
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Publication number: 20190184996Abstract: A powertrain including a prime mover and an electronically controllable clutch. The powertrain structured selectably engages the clutch to provide power from the prime mover to drive one or more ground contacting wheels and to selectably disengage the clutch to decouple with one or more ground contacting wheels. The electronic control system operatively communicates with the prime mover and the electronically controllable clutch, and uses a predictive cruise control (PCC) controller and an idle coast management (ICM) controller, to control vehicle speed during concurrent operation of the PCC controller and the ICM controller.Type: ApplicationFiled: December 15, 2017Publication date: June 20, 2019Inventors: Kenneth M. Follen, Vivek Anand Sujan, Daniel Reed Dempsey, Tejas Shrikant Kinjawadekar, Craig Michael Calmer, Jairo Andres Sandoval Leon, Oruganti Prashanth Sharma
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Publication number: 20190186561Abstract: A powertrain including a prime mover and an electronically controllable clutch. The powertrain structured selectably engages the clutch to provide power from the prime mover to drive one or more ground contacting wheels and to selectably disengage the clutch to decouple with one or more ground contacting wheels. The electronic control system operatively communicates with the prime mover and the electronically controllable clutch, and uses a predictive cruise control (PCC) controller and an idle coast management (ICM) controller, to control vehicle speed during concurrent operation of the PCC controller and the ICM controller.Type: ApplicationFiled: December 15, 2017Publication date: June 20, 2019Inventors: Kenneth M. Follen, Vivek Anand Sujan, Daniel Reed Dempsey, Tejas Shrikant Kinjawadekar, Craig Michael Calmer, Jairo Andres Sandoval Leon, Oruganti Prashanth Sharma
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Patent number: 10293825Abstract: Methods of operating internal combustion engines are provided. A controller detects a coasting event while an associated vehicle is in motion. In response to the coasting event, the controller directs at least a portion of an exhaust gas output by an exhaust system of an internal combustion engine of the vehicle into an intake system of the internal combustion engine.Type: GrantFiled: September 22, 2016Date of Patent: May 21, 2019Assignee: Cummins Inc.Inventors: Tony James Hall, Daniel Reed Dempsey
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Publication number: 20190100192Abstract: One embodiment is a system comprising an internal combustion engine including an output shaft, a pulley system structured to be driven by the output shaft, a first alternator and a second alternator structured to be driven by the pulley system, and an electromagnetic clutch integrated within one of the pulley system, the first alternator and the second alternator and structured to selectably couple and decouple at least one of the first alternator and the second alternator from the output shaft. The system includes a controller in operative communication with the internal combustion engine system and structured to evaluate power demand and power production capability parameters of the system and to control the electromagnetic clutch to engage or disengage in response to the evaluation.Type: ApplicationFiled: October 3, 2018Publication date: April 4, 2019Inventors: Christopher Michael Remington, Daniel Reed Dempsey, Steven W. Reedy, Jason A. Owens, Radhika Cherukuru
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Publication number: 20180265090Abstract: A system, method, and apparatus include a controller structured to predict a change in speed of a vehicle in advance of upcoming terrain and inhibit a coasting event if the speed exceeds a limit. In one form a velocity of the vehicle is predicted using a physics based model of the vehicle within a look ahead window in front of a vehicle. Such a look ahead window can be distance or time based. In another, speed of a vehicle is monitored during a coasting event and is compared against a threshold to determine whether to remain coasting or re-engage an engine to a driveline. The threshold is a function of road grade, and permits a larger deviation from set speed at low grade than at high grade. The function can be based on road grade and vehicle weight.Type: ApplicationFiled: April 26, 2018Publication date: September 20, 2018Inventors: Oruganti Prashanth Sharma, Kenneth M. Follen, Tejas Shrikant Kinjawadekar, Vivek Anand Sujan, Daniel Reed Dempsey, Apurva Chunodkar, Nathanael G. Long, Jairo Andres Sandoval Leon