Patents by Inventor Christopher L. Wynkoop
Christopher L. Wynkoop 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).
-
Publication number: 20240157809Abstract: A method for controlling an electric motor driving a hydraulic pump for a battery-powered electric mobile machine includes receiving one or more command signals for one or more hydraulically-driven systems. The method also includes determining a minimum pump speed for each of the one or more hydraulically-driven systems, and determining a highest minimum pump speed for the one or more hydraulically-driven systems. The method further includes converting the highest minimum pump speed to an electric motor command, and sending the electric motor command to the electric motor.Type: ApplicationFiled: November 11, 2022Publication date: May 16, 2024Applicant: Caterpillar Inc.Inventors: Andrew OLSON, Dustin D. DENNING, Christopher L. WYNKOOP, Srikar THADUVAYI, Karl P. SCHNEIDER
-
Publication number: 20240157798Abstract: A controller of a machine identifies that a battery of the machine is connected to an electrical power connector component. The controller then causes one or more charging components of the battery of the machine to be enabled, then cause one or more electrical components associated with the battery of the machine to be enabled, then causes one or more cooling components of the machine to be enabled, then causes one or more propulsion components of the machine to be disabled, then causes one or more accumulator components of a hydraulic system of the machine to bleed, and then causes one or more non-accumulator components of the hydraulic system of the machine to be enabled. In this way, the controller causes the battery of the machine to enter into a charging state.Type: ApplicationFiled: November 11, 2022Publication date: May 16, 2024Applicant: Caterpillar Inc.Inventors: Dustin Dale DENNING, Jason Lee MILLER, Christopher L. WYNKOOP, Srikar THADUVAYI, Brett Michael NEE
-
Publication number: 20240157940Abstract: As part of a start-up sequence, a controller of a machine causes one or more activation components of a battery of the machine to be enabled, then causes one or more electrical components associated with the battery to be enabled, then causes one or more non-accumulator components of a hydraulic system to be enabled, then causes one or more accumulator components of the hydraulic system to charge, and then causes one or more propulsion components to be enabled. As part of a shut-down sequence, the controller causes the one or more propulsion components to be disabled, then causes the one or more accumulator components of the hydraulic system to bleed, then causes the one or more non-accumulator components of the hydraulic system to be disabled, and then causes the one or more electrical components associated with the battery to be disabled.Type: ApplicationFiled: November 11, 2022Publication date: May 16, 2024Applicant: Caterpillar Global Mining Equipment LLCInventors: Jason Lee MILLER, Luke T. MELCHIOR, Christopher L. WYNKOOP, Dustin Dale DENNING, Brett Michael NEE, Peter H. HUANG
-
Patent number: 11572069Abstract: The present disclosure relates to a method of controlling gear selection in a transmission of a vehicle in response to a directional shift requested by an operator and to a control system for controlling gear selection to manage directional shifts in vehicles, from a first direct to a second direction (e.g. forward to reverse). The method compares the current transmission output speed with a predetermined direction shift threshold transmission output speed. If the current transmission output speed is less than or equal to the predetermined direction shift threshold transmission output speed, the transmission is caused to execute a direction shift from the initial first direction gear to the same second direction gear, or a next highest second direction gear if there is no second direction gear which corresponds to the initial first direction gear.Type: GrantFiled: August 15, 2019Date of Patent: February 7, 2023Assignee: Caterpillar Inc.Inventors: Robert Nicholas Harper, Abhishek Awana, Christopher L. Wynkoop, Mariappan Paramasivan
-
Patent number: 11566703Abstract: A method of controlling gear selection in a vehicle transmission comprises detecting a change in a direction control signal (DCS) from a neutral signal state. If the current TOS is less than or equal to a predetermined neutral shift threshold TOS, the transmission selects one of a plurality of first direction gears if the DCS was changed to a first direction signal state or one of a plurality of second direction gears if the DCS was changed to a second direction signal state. If the current TOS is greater than the predetermined neutral shift threshold TOS, the transmission selects one of the plurality of first direction gears if a machine motion direction parameter indicates that the vehicle is moving in the first direction or one of the plurality of second direction gears if the machine motion direction parameter indicates that the vehicle is moving in the second direction.Type: GrantFiled: February 22, 2021Date of Patent: January 31, 2023Assignee: Caterpillar Inc.Inventors: Robert Nicholas Harper, Christopher L. Wynkoop, Shanmugahari Murugesan
-
Publication number: 20210316731Abstract: The present disclosure relates to a method of controlling gear selection in a transmission of a vehicle in response to a directional shift requested by an operator and to a control system for controlling gear selection to manage directional shifts in vehicles, from a first direct to a second direction (e.g. forward to reverse). The method compares the current transmission output speed with a predetermined direction shift threshold transmission output speed. If the current transmission output speed is less than or equal to the predetermined direction shift threshold transmission output speed, the transmission is caused to execute a direction shift from the initial first direction gear to the same second direction gear, or a next highest second direction gear if there is no second direction gear which corresponds to the initial first direction gear.Type: ApplicationFiled: August 15, 2019Publication date: October 14, 2021Applicant: Caterpillar Inc.Inventors: Robert Nicholas HARPER, Abhishek AWANA, Christopher L. WYNKOOP, Mariappan PARAMASIVAN
-
Publication number: 20210262565Abstract: A method of controlling gear selection in a vehicle transmission comprises detecting a change in a direction control signal (DCS) from a neutral signal state. If the current TOS is less than or equal to a predetermined neutral shift threshold TOS, the transmission selects one of a plurality of first direction gears if the DCS was changed to a first direction signal state or one of a plurality of second direction gears if the DCS was changed to a second direction signal state. If the current TOS is greater than the predetermined neutral shift threshold TOS, the transmission selects one of the plurality of first direction gears if a machine motion direction parameter indicates that the vehicle is moving in the first direction or one of the plurality of second direction gears if the machine motion direction parameter indicates that the vehicle is moving in the second direction.Type: ApplicationFiled: February 22, 2021Publication date: August 26, 2021Applicant: Caterpillar Inc.Inventors: Robert Nicholas Harper, Christopher L. Wynkoop, Shanmugahari Murugesan
-
Publication number: 20210061199Abstract: A machine includes an engine, an electronic display device, and a controller configured to: receive one or more signals indicating an identification of a machine operator; retrieve a name of the operator associated with the identification of the operator in a first data set of machine operators; retrieve one or more saved machine parameters associated with the name of the operator in a second data set of machine parameters; and set one or more current machine parameters to the one or more saved machine parameters.Type: ApplicationFiled: August 29, 2019Publication date: March 4, 2021Applicant: Caterpillar Inc.Inventors: Christopher L. Wynkoop, Steven A. Bettenhausen, Keven K. Lockwood, Derek J. Light, Robert E. Shockency, JR., Adam P. Roesner
-
Patent number: 8769928Abstract: An exhaust system for use with a combustion engine is disclosed. The exhaust system may have an exhaust passage, a reduction catalyst disposed within the exhaust passage, and an injection device configured to inject reductant into the exhaust passage. The exhaust system may also have a sensor configured to generate a signal indicative of a concentration of an exhaust constituent and the reductant, and a controller in communication with the sensor and the injection device. The controller may be configured to make a comparison of a value indicative of a rate of change of the signal for a period of time with a threshold amount, and make a determination of whether the sensor is sensing a concentration of the exhaust constituent or the reductant based on the comparison. The controller may also be configured to adjust operation of the injection device based on the determination.Type: GrantFiled: September 27, 2010Date of Patent: July 8, 2014Assignee: Caterpillar Inc.Inventors: Mary L. Yeager, Christopher L. Wynkoop, Amit Jayachandran
-
Patent number: 8413424Abstract: An engine exhaust aftertreatment system including an catalyst-based device configured to reduce an amount of NOx in exhaust gases produced by an engine using reductant stored in the catalyst-based device. The system includes a controller configured to determine a starting quantity of stored reductant in the catalyst-based device at the start of the engine. The starting quantity is based on a shutdown quantity of stored reductant in the catalyst-based device determined at the shutdown of the engine.Type: GrantFiled: January 23, 2009Date of Patent: April 9, 2013Assignee: Caterpillar Inc.Inventors: Mary Lou Kesse, Christopher L. Wynkoop
-
Patent number: 8185359Abstract: A method for transforming machine sensor data between a time domain and a combustion pulse domain is disclosed. The method may include determining a number of pulse events per rotation of a shaft and determining a sampling rate per pulse event. The method may also include sampling one or more sensors at the sampling rate per pulse event. The method also may include transforming the samples into the combustion pulse domain.Type: GrantFiled: July 3, 2008Date of Patent: May 22, 2012Assignee: Caterpillar Inc.Inventors: Anthony J. Grichnik, Timothy J. Felty, James R. Mason, Amit Jayachandran, Mary Lou Kesse, Christopher L. Wynkoop
-
Publication number: 20120073265Abstract: An exhaust system for use with a combustion engine is disclosed. The exhaust system may have an exhaust passage, a reduction catalyst disposed within the exhaust passage, and an injection device configured to inject reductant into the exhaust passage. The exhaust system may also have a sensor configured to generate a signal indicative of a concentration of an exhaust constituent and the reductant, and a controller in communication with the sensor and the injection device. The controller may be configured to make a comparison of a value indicative of a rate of change of the signal for a period of time with a threshold amount, and make a determination of whether the sensor is sensing a concentration of the exhaust constituent or the reductant based on the comparison. The controller may also be configured to adjust operation of the injection device based on the determination.Type: ApplicationFiled: September 27, 2010Publication date: March 29, 2012Inventors: Mary L. YEAGER, Christopher L. Wynkoop, Amit Jayachandran
-
Patent number: 7917333Abstract: A method for providing a virtual sensor network based system. The method may include obtaining project data descriptive of a virtual sensor network to be used in a control system of a machine; establishing a virtual sensor network including a plurality of virtual sensors based on the project data. Each virtual sensor may have a model type, at least one input parameter, and at least one output parameter. The method may also include recording model information, measurement data, and performance information of the virtual sensor network including the plurality of virtual sensors; creating one or more calibration certificates of the virtual sensor network including a plurality of virtual sensors based on the model information, the measurement data, and the performance information; and generating a documentation package associated with the virtual sensor network.Type: GrantFiled: August 20, 2008Date of Patent: March 29, 2011Assignee: Caterpillar Inc.Inventors: Anthony J. Grichnik, Mary L. Kesse, Amit Jayachandran, James Mason, Tim Felty, Christopher L. Wynkoop
-
Publication number: 20100186383Abstract: An engine exhaust aftertreatment system including an catalyst-based device configured to reduce an amount of NOx in exhaust gases produced by an engine using reductant stored in the catalyst-based device. The system includes a controller configured to determine a starting quantity of stored reductant in the catalyst-based device at the start of the engine. The starting quantity is based on a shutdown quantity of stored reductant in the catalyst-based device determined at the shutdown of the engine.Type: ApplicationFiled: January 23, 2009Publication date: July 29, 2010Applicant: Caterpillar Inc.Inventors: Mary Lou Kesse, Christopher L. Wynkoop
-
Publication number: 20100050025Abstract: A method for providing a virtual sensor network based system. The method may include obtaining project data descriptive of a virtual sensor network to be used in a control system of a machine; establishing a virtual sensor network including a plurality of virtual sensors based on the project data. Each virtual sensor may have a model type, at least one input parameter, and at least one output parameter. The method may also include recording model information, measurement data, and performance information of the virtual sensor network including the plurality of virtual sensors; creating one or more calibration certificates of the virtual sensor network including a plurality of virtual sensors based on the model information, the measurement data, and the performance information; and generating a documentation package associated with the virtual sensor network.Type: ApplicationFiled: August 20, 2008Publication date: February 25, 2010Inventors: Anthony J. Grichnik, Mary L. Kesse, Amit Jayachandran, James Mason, Tim Felty, Christopher L. Wynkoop
-
Publication number: 20100004901Abstract: A method for transforming machine sensor data between a time domain and a combustion pulse domain is disclosed. The method may include determining a number of pulse events per rotation of a shaft and determining a sampling rate per pulse event. The method may also include sampling one or more sensors at the sampling rate per pulse event. The method also may include transforming the samples into the combustion pulse domain.Type: ApplicationFiled: July 3, 2008Publication date: January 7, 2010Inventors: Anthony J. Grichnik, Timothy J. Felty, James R. Mason, Amit Jayachandran, Mary Lou Kesse, Christopher L. Wynkoop