Patents by Inventor John J. Krone

John J. Krone 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).

  • Patent number: 10473008
    Abstract: A system and method for activating on a user interface an indicator of a condition of a lubricant in a machine module. The system may comprise a controller and a user interface. The controller may be configured to, for each of a first time window and a second time window: receive a plurality of lubricant characteristics and measured lubricant temperatures, calculate an adjusted lubricant characteristic, and determine a slope based on the plurality of adjusted lubricant characteristics. The controller may further determine a change in slope, and generate a signal to activate the indicator on the user interface based on the change in slope, wherein, if the change in slope exceeds a threshold, the indicator is a lubricant changed indicator.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: November 12, 2019
    Assignee: Caterpillar Inc.
    Inventors: Yanchai Zhang, Venkata Dandibhotla, Kyle Brent Walton, John J. Krone
  • Publication number: 20190195097
    Abstract: A system and method for activating on a user interface an indicator of a condition of a lubricant in a machine module. The system may comprise a controller and a user interface. The controller may be configured to, for each of a first time window and a second time window: receive a plurality of lubricant characteristics and measured lubricant temperatures, calculate an adjusted lubricant characteristic, and determine a slope based on the plurality of adjusted lubricant characteristics. The controller may further determine a change in slope, and generate a signal to activate the indicator on the user interface based on the change in slope, wherein, if the change in slope exceeds a threshold, the indicator is a lubricant changed indicator.
    Type: Application
    Filed: December 22, 2017
    Publication date: June 27, 2019
    Applicant: Caterpillar Inc.
    Inventors: Yanchai Zhang, Venkata Dandibhotla, Kyle Brent Walton, John J. Krone
  • Patent number: 9765499
    Abstract: A hydraulic control system is disclosed for an excavation machine including a tool linkage system. The hydraulic control system may have a first actuator configured to move a first link of the tool linkage system in response to input from an operator of the excavation machine, and a pressure sensor configured to generate a signal indicative of a pressure of the first actuator. The hydraulic control system may also have a second actuator configured to move a second link of the tool linkage system in response to input from the operator. In addition, the hydraulic control system may have a controller in communication with the pressure sensor, the first actuator, and the second actuator. The controller may be configured to automatically affect operation of the first actuator based on the pressure signal at times when movement of the second actuator is being requested by the operator and movement of the first actuator is being requested by the operator at a level less than a threshold.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: September 19, 2017
    Assignee: Caterpillar Inc.
    Inventors: Corey Lee Gorman, Adam Martin Nackers, John J. Krone, Mahmoud M. Tobaa
  • Patent number: 9702118
    Abstract: A hydraulic system is disclosed for use with a machine. The hydraulic system may have a pump configured to pressurize fluid, a first actuator configured to receive pressurized fluid from the pump, and an accumulator configured to receive fluid from the first actuator. The hydraulic system may also have a second actuator configured to receive pressurized fluid from the pump and the accumulator, and a pilot circuit configured to receive pressurized fluid from the pump and the accumulator. The hydraulic system may further have at least one valve movable to provide priority of fluid flow from the accumulator to the pilot circuit over the second actuator when a pressure of the accumulator is less than a low-pressure threshold.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: July 11, 2017
    Assignee: Caterpillar Inc.
    Inventors: Corey Lee Gorman, John J. Krone, Adam Martin Nackers
  • Patent number: 9416779
    Abstract: Method of controlling multiple variable displacement hydraulic pumps determined relative to operator commands. If non-second-pump-dominated command, a respective adjusted displacement request is determined based upon the lesser of the operator requested torque limited displacement and an adjusted torque limited displacement that calculated based upon and the torque limited displacement of the respective pump and a scaling factor calculated based upon the first relief valve set pressure and respective pump pressure. If second-pump-dominated command, the set pressure of a relief valve associated with one of the pumps is instead utilized in calculating the scaling factor in the above strategy.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: August 16, 2016
    Assignee: Caterpillar Inc.
    Inventors: Corey L. Gorman, Adam Nackers, Jeremiah C. Johnson, John J. Krone
  • Publication number: 20160138618
    Abstract: A hydraulic system is disclosed for use with a machine. The hydraulic system may have a pump configured to pressurize fluid, a first actuator configured to receive pressurized fluid from the pump, and an accumulator configured to receive fluid from the first actuator. The hydraulic system may also have a second actuator configured to receive pressurized fluid from the pump and the accumulator, and a pilot circuit configured to receive pressurized fluid from the pump and the accumulator. The hydraulic system may further have at least one valve movable to provide priority of fluid flow from the accumulator to the pilot circuit over the second actuator when a pressure of the accumulator is less than a low-pressure threshold.
    Type: Application
    Filed: November 19, 2014
    Publication date: May 19, 2016
    Applicant: CATERPILLAR INC.
    Inventors: Corey Lee Gorman, John J. Krone, Adam Martin Nackers
  • Publication number: 20160115669
    Abstract: A hydraulic control system is disclosed for an excavation machine including a tool linkage system. The hydraulic control system may have a first actuator configured to move a first link of the tool linkage system in response to input from an operator of the excavation machine, and a pressure sensor configured to generate a signal indicative of a pressure of the first actuator. The hydraulic control system may also have a second actuator configured to move a second link of the tool linkage system in response to input from the operator. In addition, the hydraulic control system may have a controller in communication with the pressure sensor, the first actuator, and the second actuator.
    Type: Application
    Filed: October 22, 2014
    Publication date: April 28, 2016
    Applicant: Caterpillar Inc.
    Inventors: Corey Lee Gorman, Adam Martin Nackers, John J. Krone, Mahmoud M. Tobaa
  • Publication number: 20150267697
    Abstract: Method of controlling multiple variable displacement hydraulic pumps determined relative to operator commands. If non-second-pump-dominated command, a respective adjusted displacement request is determined based upon the lesser of the operator requested torque limited displacement and an adjusted torque limited displacement that calculated based upon and the torque limited displacement of the respective pump and a scaling factor calculated based upon the first relief valve set pressure and respective pump pressure. If second-pump-dominated command, the set pressure of a relief valve associated with one of the pumps is instead utilized in calculating the scaling factor in the above strategy.
    Type: Application
    Filed: March 24, 2014
    Publication date: September 24, 2015
    Applicant: Caterpillar Inc.
    Inventors: Corey L. Gorman, Adam Nackers, Jeremiah C. Johnson, John J. Krone
  • Patent number: 9068643
    Abstract: A hydraulic pump housing comprises passages formed in an inner wall separating the gear cavity and the pump cavity to allow for the movement of fluid into and out of the gear cavity, thereby alleviating some of the power loss caused by churning lubricating oil. The hydraulic pump may comprise spaces integrally formed in axially opposing surfaces of the gear cavity walls adjacent the area where the gears mesh to enable the churning oil to expand and flow around the gears.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: June 30, 2015
    Assignee: Caterpillar Inc.
    Inventors: Benjamin T. Nelson, Andrew J. Krajnik, John J. Krone
  • Publication number: 20150176697
    Abstract: A hydraulic pump housing comprises passages formed in an inner wall separating the gear cavity and the pump cavity to allow for the movement of fluid into and out of the gear cavity, thereby alleviating some of the power loss caused by churning lubricating oil. The hydraulic pump may comprise spaces integrally formed in axially opposing surfaces of the gear cavity walls adjacent the area where the gears mesh to enable the churning oil to expand and flow around the gears.
    Type: Application
    Filed: March 4, 2015
    Publication date: June 25, 2015
    Inventors: Benjamin T. Nelson, Andrew J. Krajnik, John J. Krone
  • Publication number: 20140130634
    Abstract: A hydraulic pump housing comprises passages formed in an inner wall separating the gear cavity and the pump cavity to allow for the movement of fluid into and out of the gear cavity, thereby alleviating some of the power loss caused by churning lubricating oil. The hydraulic pump may comprise spaces integrally formed in axially opposing surfaces of the gear cavity walls adjacent the area where the gears mesh to enable the churning oil to expand and flow around the gears.
    Type: Application
    Filed: November 14, 2012
    Publication date: May 15, 2014
    Applicant: CATERPILLAR INC.
    Inventors: Benjamin T. Nelson, Andrew J. Krajnik, John J. Krone
  • Patent number: 8660738
    Abstract: Methods and systems are disclosed for evaluating performances of a piece of equipment and equipment operator. One disclosed method includes sensing a plurality of operating parameters of the equipment. The method then includes resolving a plurality of segments the equipment is sequentially performing from the sensed operating parameters to provide a sequence of resolved segments. The method then includes resolving what application the equipment is performing based upon the sequence of resolved segments to provide at least one resolved application. The method then includes applying at least one metric to the resolved application to provide at least one applied application metric. Then, the method includes evaluating the performance of the equipment and operator using the applied application metric. Various systems for installation on existing work equipments or new work equipments such as loaders and excavators are also disclosed.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: February 25, 2014
    Assignee: Catepillar Inc.
    Inventors: Joseph L. Faivre, Bradley K. Bomer, Chandrasekar Ramkumar, John J. Krone
  • Patent number: 8631650
    Abstract: A hydraulic system is disclosed having at least two hydraulic circuits. The disclosed system apportions flow between the two hydraulic circuits based on an assumed flow rate that is held constant in both power-limited and non-power-limited conditions.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: January 21, 2014
    Assignee: Caterpillar Inc.
    Inventors: Michael T. Verkuilen, John J. Krone, Douglas W. Koehler, James A. Aardema
  • Patent number: 8340872
    Abstract: An automated bucket loading control method includes determining a bucket tilt parameter for a bucket of the machine which corresponds with a partial bucket load, and capturing a partial bucket load by controllably tilting the bucket in a pile of material according to the determined bucket tilt parameter. A control system includes a sensor configured to monitor a bucket tilt parameter and output a bucket tilt signal, and further includes an electronic payload controller coupled with the sensor which is configured to output bucket tilting control commands. The electronic payload controller is further configured to determine a value for the bucket tilt parameter that corresponds with a target partial bucket load and output corresponding bucket tilting control commands during moving a bucket of the machine in a material pile to capture a partial bucket load.
    Type: Grant
    Filed: July 10, 2007
    Date of Patent: December 25, 2012
    Assignee: Caterpillar Inc.
    Inventors: Brian Mintah, Bassam J. Alshaer, John J. Krone, Jeffrey K. Berry
  • Publication number: 20120158279
    Abstract: Methods and systems are disclosed for evaluating performances of a piece of equipment and equipment operator. One disclosed method includes sensing a plurality of operating parameters of the equipment. The method then includes resolving a plurality of segments the equipment is sequentially performing from the sensed operating parameters to provide a sequence of resolved segments. The method then includes resolving what application the equipment is performing based upon the sequence of resolved segments to provide at least one resolved application. The method then includes applying at least one metric to the resolved application to provide at least one applied application metric. Then, the method includes evaluating the performance of the equipment and operator using the applied application metric. Various systems for installation on existing work equipments or new work equipments such as loaders and excavators are also disclosed.
    Type: Application
    Filed: December 14, 2010
    Publication date: June 21, 2012
    Inventors: Joseph L. Faivre, Bradley K. Bomer, Chandrasekar Ramkumar, John J. Krone
  • Patent number: 8046134
    Abstract: A steering system for a machine having at least one steerable traction device is disclosed. The steering system may have a steering actuator operatively connected to the at least one steerable traction device, and a travel speed sensor configured to generate a signal indicative of a travel speed of the machine. The steering mechanism may also have an operator input device having a deadzone. The deadzone may vary in response to the signal. The steering system may also have a controller in communication with the steering actuator, the operator input device, and the travel speed sensor. The controller may be configured to affect operation of the steering actuator in response to operation of the operator input device only when the operation of the operator input device deviates from the deadzone.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: October 25, 2011
    Assignee: Caterpilar Inc.
    Inventors: Xiaodong Huang, John J. Krone, Brad A. Edler, Mark L. Westphalen, Yongmin Ma, Brent M. Carr
  • Publication number: 20110072809
    Abstract: A hydraulic system is disclosed having at least two hydraulic circuits. The disclosed system apportions flow between the two hydraulic circuits based on an assumed flow rate that is held constant in both power-limited and non-power-limited conditions.
    Type: Application
    Filed: September 2, 2010
    Publication date: March 31, 2011
    Applicant: Caterpillar Inc.
    Inventors: Michael Todd Verkuilen, John J. Krone, Douglas W. Koehler, James A. Aardema
  • Publication number: 20110035112
    Abstract: A steering system for a machine having at least one steerable traction device is disclosed. The steering system may have a steering actuator operatively connected to the at least one steerable traction device, and a travel speed sensor configured to generate a signal indicative of a travel speed of the machine. The steering mechanism may also have an operator input device having a deadzone. The deadzone may vary in response to the signal. The steering system may also have a controller in communication with the steering actuator, the operator input device, and the travel speed sensor. The controller may be configured to affect operation of the steering actuator in response to operation of the operator input device only when the operation of the operator input device deviates from the deadzone.
    Type: Application
    Filed: October 20, 2010
    Publication date: February 10, 2011
    Applicant: Caterpillar Inc.
    Inventors: Xiaodong Huang, John J. Krone, Brad A. Edler, Mark L. Westphalen, Yongmin Ma, Brent M. Carr
  • Patent number: 7853380
    Abstract: A steering system for a machine having at least one steerable traction device is disclosed. The steering system may have a steering actuator operatively connected to the at least one steerable traction device, and a travel speed sensor configured to generate a signal indicative of a travel speed of the machine. The steering mechanism may also have an operator input device having a deadzone. The deadzone may vary in response to the signal. The steering system may also have a controller in communication with the steering actuator, the operator input device, and the travel speed sensor. The controller may be configured to affect operation of the steering actuator in response to operation of the operator input device only when the operation of the operator input device deviates from the deadzone.
    Type: Grant
    Filed: August 24, 2009
    Date of Patent: December 14, 2010
    Assignee: Caterpillar Inc
    Inventors: Xiaodong Huang, John J. Krone, Brad A. Edler, Mark L. Westphalen, Yongmin Ma, Brent M. Carr
  • Publication number: 20090312913
    Abstract: A steering system for a machine having at least one steerable traction device is disclosed. The steering system may have a steering actuator operatively connected to the at least one steerable traction device, and a travel speed sensor configured to generate a signal indicative of a travel speed of the machine. The steering mechanism may also have an operator input device having a deadzone. The deadzone may vary in response to the signal. The steering system may also have a controller in communication with the steering actuator, the operator input device, and the travel speed sensor. The controller may be configured to affect operation of the steering actuator in response to operation of the operator input device only when the operation of the operator input device deviates from the deadzone.
    Type: Application
    Filed: August 24, 2009
    Publication date: December 17, 2009
    Applicant: Caterpillar Inc.
    Inventors: Xiaodong Huang, John J. Krone, Brad A. Edler, Mark L. Westphalen, Yongmin Ma, Brent M. Carr