Patents by Inventor David E. Schisler

David E. Schisler 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: 12233851
    Abstract: A method for controlling the distribution of power to a traction motor in a plug-in electric vehicle having a plurality of on-board sources of electric power. Power is distributed at a normal power control relationship in response to an operator control input during operation in a normal mode. Power is depleted at a first rate during operation of the vehicle in the normal mode. Power is distributed at a derate power control relationship in response to the operator control input during operation in a derate mode. Power is depleted at a second rate that is less than the first rate during operation in the derate mode to conserve the power of the one or more on-board sources. Operation in the derate mode can be initiated in response to information from sensors identifying a vehicle condition indicating a battery charge limitation.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: February 25, 2025
    Assignee: Cummins Inc.
    Inventors: Martin T. Books, Jennifer Kay Light-Holets, Praveen Chitradurga Muralidhar, David E. Schisler
  • Patent number: 12094264
    Abstract: An apparatus includes one or more processing circuits comprising one or more memory devices coupled to one or more processors, the one or more memory devices configured to store instructions thereon that, when executed by the one or more processors, cause the one or more processing circuits to perform various operations. The operations include wirelessly receiving a plurality of fault codes from a vehicle control system; prioritizing each fault code within the plurality of fault codes; determining a first root cause fault code corresponding to the highest prioritized fault code in the plurality of fault codes; determining a first set of interaction fault codes, the first set of interaction fault codes relating to the first root cause fault code based on a causal relationship; and wirelessly transmitting the first root cause fault code and the first set of interaction fault codes to a display of an interface device.
    Type: Grant
    Filed: July 6, 2021
    Date of Patent: September 17, 2024
    Assignee: Cummins Inc.
    Inventors: Steven R. Collins, David E. Schisler
  • Publication number: 20210335063
    Abstract: An apparatus includes one or more processing circuits comprising one or more memory devices coupled to one or more processors, the one or more memory devices configured to store instructions thereon that, when executed by the one or more processors, cause the one or more processing circuits to perform various operations. The operations include wirelessly receiving a plurality of fault codes from a vehicle control system; prioritizing each fault code within the plurality of fault codes; determining a first root cause fault code corresponding to the highest prioritized fault code in the plurality of fault codes; determining a first set of interaction fault codes, the first set of interaction fault codes relating to the first root cause fault code based on a causal relationship; and wirelessly transmitting the first root cause fault code and the first set of interaction fault codes to a display of an interface device.
    Type: Application
    Filed: July 6, 2021
    Publication date: October 28, 2021
    Applicant: Cummins Inc.
    Inventors: Steven R. Collins, David E. Schisler
  • Publication number: 20170024943
    Abstract: Systems, apparatuses, and methods disclosed provide for service assessment. The method includes receiving at least one fault code of an engine control unit (ECU); determining at least one root cause based on the at least one fault code of the ECU; determining an estimated labor time for fixing the at least one root cause; and outputting the at least one root cause and the estimated labor time to a display.
    Type: Application
    Filed: September 30, 2016
    Publication date: January 26, 2017
    Applicant: Cummins, Inc.
    Inventors: Arthur R. Wodecki, Russell Martin Poling, JR., Ronald R. Chapman, Setu Madhavi Namburu, Michael A. Wodecki, Brent A. Engel, Helena L. Weaks, Steven R. Collins, David E. Schisler
  • Patent number: 9514580
    Abstract: A fault code analyzer for a vehicle includes a fault code memory device configured to store a plurality of active and inactive fault codes for the vehicle and a priority processor coupled to the memory device. The priority processor is configured to: prioritize each fault code within the plurality of active and inactive fault codes; determine a first root cause fault code, the first root cause fault code corresponding to the highest prioritized fault code; determine a first set of interaction fault codes, the first set of interaction fault codes relating to the first root cause fault code; and provide the first root cause fault code and the first set of interaction fault codes to an interface device of a user.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: December 6, 2016
    Assignee: Cummins, Inc.
    Inventors: Steven R. Collins, David E. Schisler
  • Publication number: 20150269793
    Abstract: A fault code analyzer for a vehicle includes a fault code memory device configured to store a plurality of active and inactive fault codes for the vehicle and a priority processor coupled to the memory device. The priority processor is configured to: prioritize each fault code within the plurality of active and inactive fault codes; determine a first root cause fault code, the first root cause fault code corresponding to the highest prioritized fault code; determine a first set of interaction fault codes, the first set of interaction fault codes relating to the first root cause fault code; and provide the first root cause fault code and the first set of interaction fault codes to an interface device of a user.
    Type: Application
    Filed: March 19, 2014
    Publication date: September 24, 2015
    Inventors: Steve R. Collins, David E. Schisler
  • Patent number: 5765755
    Abstract: An injection rate shaping nozzle assembly for a fuel injector is provided which includes a closed nozzle valve element and a rate shaping control device including an injection spill circuit for spilling a portion of the fuel to be injected to produce a predetermined time varying change in the flow rate of fuel injected into a combustion chamber. The spill circuit includes a spill passage integrally formed in the nozzle valve element. The rate shaping control device may include a spill accelerating chamber in formed in the nozzle valve element for creating a rapid increase in the spill flow rate. A spill circuit purge device is provided to remove fuel from the spill circuit and accelerating chamber between each of the injection events thereby ensuring an unimpeded, effective spill fuel flow during the next spill event.
    Type: Grant
    Filed: January 23, 1997
    Date of Patent: June 16, 1998
    Assignee: Cummins Engine Company, Inc.
    Inventors: Lester L. Peters, Julius P. Perr, A. S. Ghuman, Benjamin M. Yen, Chad L. Buchanan, Robert Samuel, Kevin L. Vogt, John T. Carroll, III, James E. Denton, David E. Schisler