Patents Assigned to Paccar Inc
  • Predictive ammonia release control
    Patent number: 11434800
    Abstract: Embodiments are directed towards controlling uncontrolled release of ammonia from an engine of a vehicle. An estimated status of the engine is determined prior to an event, such as an estimated load on the engine prior to the vehicle going up a hill. A predictive model of uncontrolled ammonia release is generated for the estimated status. At least one engine-related countermeasure is selected based on the predictive model. If the predictive model of uncontrolled ammonia release with the selected countermeasures satisfies a threshold condition, then the selected engine-related countermeasure is employed.
    Type: Grant
    Filed: January 4, 2021
    Date of Patent: September 6, 2022
    Assignee: PACCAR INC
    Inventors: Jorge Rafael Lozada Ramirez, Carl Anders Hergart, Cynthia Chaffin Webb, Christopher S. Balton
  • Heater diagnostics in heavy-duty motor vehicle engines
    Patent number: 11428136
    Abstract: A heavy duty truck includes a diesel engine, an exhaust after-treatment system, and an engine control unit. The exhaust after-treatment system may include one or more selective catalytic reduction systems, each with a respective heater, and each heater with a respective pair of temperature sensors, one upstream and the other downstream of the heater. Such systems may be used to perform diagnostic methods including populating a lookup table having heat energy supplied to an exhaust gas stream by the diesel engine as a first independent variable, heat energy supplied to the exhaust gas stream by a heater as a second independent variable, and a resulting temperature as an output. Such a lookup table can be used to maintain a temperature of the exhaust gas flow at a constant target temperature.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: August 30, 2022
    Assignee: PACCAR INC
    Inventors: Charles Wayne Reinhardt Swart, Cynthia Chaffin Webb, Maarten Meijer, Varun Ramesh
  • Method of offering finely calibrated engine speed control to a large number of diverse power take-off (PTO) applications
    Patent number: 11428175
    Abstract: Systems and methods are provided for controlling a power plant during use of a power take-off (PTO) device, wherein the responsiveness and stability of the controller are adjustable by an operator in the field. The use of setting maps allows fine tuning of controller responsiveness while also ensuring that expected performance would be achieved at any setting within the setting map. In some embodiments, a proportional-integral-derivative (PID) controller is used to control engine speed, and gains for the proportional, integral, and derivative terms are obtained from setting maps based on a responsiveness setting chosen by a vehicle operator.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: August 30, 2022
    Assignee: PACCAR Inc.
    Inventors: Burton Edwin Waite, III, James David Castner, Charles Wayne Reinhardt Swart
  • Intermittent restart for automatic engine stop start system
    Patent number: 11421640
    Abstract: A disclosed method of automatically stopping and restarting a vehicle engine determines if one or more stop/start enablement condition has been met. If the stop/start enablement condition or conditions have been met, the method initiates an engine shutdown. If a restart request is made before the engine reaches a predetermined threshold speed, then a first restart sequence is initiated. If a restart request is made when the engine speed is less than the predetermined threshold speed but still greater than 0, then a second restart sequence is initiated.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: August 23, 2022
    Assignee: PACCAR Inc.
    Inventors: Michael D. Gerty, Uday Vadlamani, Jordan Mosher, Sundeep S. Tuteja, Constantin E. Nedelcu
  • Estimating ambient air temperature and diagnosing sensor failure using intercooler efficiency
    Patent number: 11414082
    Abstract: Examples of the present disclosure describe systems and methods for determining an estimated ambient air temperature in an environment in which a vehicle is operating. The estimated ambient air temperature may be compared to an ambient temperature sensor value. The comparison may be used to determine whether an ambient air temperature sensor of the vehicle is functioning properly or if an error notification or fault code should be triggered.
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: August 16, 2022
    Assignee: PACCAR Inc
    Inventors: John Echlin, Mark Lamont Lott, Christopher William John Mabson
  • Wheel well closeout
    Patent number: D960793
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: August 16, 2022
    Assignee: PACCAR Inc
    Inventors: Victor Garcia, Yashin Robles, John Paul Patino, Quentin Vanderlaan, Brad Powell, Jon Forrest Acton, Derek Sancer, Reed Greenwood, Sodarith Sibounheuang, Justin Tjahjono, Jeffrey Paul Smith
  • Wheel well closeout
    Patent number: D960794
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: August 16, 2022
    Assignee: PACCAR Inc
    Inventors: Victor Garcia, Yashin Robles, John Paul Patino, Quentin Vanderlaan, Brad Powell, Jon Forrest Acton, Derek Sancer, Reed Greenwood, Sodarith Sibounheuang, Justin Tjahjono, Jeffrey Paul Smith
  • Hood crown with grille
    Patent number: D963526
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: September 13, 2022
    Assignee: PACCAR Inc
    Inventors: Victor Garcia, Jon Forrest Acton, Emil Marius Flitar, Derek Scott Sancer, Quentin Vanderlaan, Troy Robin McCuller
  • Vehicle grille cover
    Patent number: D963529
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: September 13, 2022
    Assignee: PACCAR Inc
    Inventor: Emil Marius Flitar
  • Hood for a vehicle
    Patent number: D963530
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: September 13, 2022
    Assignee: PACCAR Inc
    Inventors: Harry Waraich, Cameron Ellis, Jonathan Duncan, Peter Vurpillat, Rebecca Kern, Amanda Koh, Steve Hovind, Michael Newman, Scott Temple
  • Vehicle fairing
    Patent number: D963531
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: September 13, 2022
    Assignee: PACCAR Inc
    Inventors: Victor Garcia, Chase Wolf, John Paul Patino, Troy Robin McCuller, Rick David Barr, Derek Scott Sancer, Brad Powell
  • Vehicle fairing
    Patent number: D963533
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: September 13, 2022
    Assignee: PACCAR Inc
    Inventors: Victor Garcia, Chase Wolf, John Paul Patino, Troy Robin McCuller, Rick David Barr, Derek Scott Sancer
  • Vehicle fairing
    Patent number: D963534
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: September 13, 2022
    Assignee: PACCAR Inc
    Inventors: Victor Garcia, Yashin Robles, John Paul Patino, Quentin Vanderlaan, Troy Robin McCuller, Rick David Barr, Derek Scott Sancer
  • Split fender
    Patent number: D963535
    Type: Grant
    Filed: November 29, 2020
    Date of Patent: September 13, 2022
    Assignee: PACCAR Inc
    Inventors: Piotr Stegawski, Jonathan Duncan, Peter Vurpillat, Steve Hovind, Amanda Koh, Brian Hannon
  • Split fender
    Patent number: D963536
    Type: Grant
    Filed: November 29, 2020
    Date of Patent: September 13, 2022
    Assignee: PACCAR Inc
    Inventors: Piotr Stegawski, Jonathan Duncan, Peter Vurpillat, Steve Hovind, Brian Hannon
  • Vehicle mirror
    Patent number: D963537
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: September 13, 2022
    Assignee: PACCAR Inc
    Inventors: Louis Daniel Heilaneh, Kunjithapadam Raghavendran, Jeffrey Paul Smith
  • Vehicle mirror
    Patent number: D963538
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: September 13, 2022
    Assignee: PACCAR Inc
    Inventors: Dimitri Trinidad Medina, Jon Forrest Acton, Troy Robin McCuller, Jeffrey Paul Smith, Bruce Joseph Bezner
  • Vehicle mirror
    Patent number: D963539
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: September 13, 2022
    Assignee: PACCAR Inc
    Inventors: Suhaib Dakhil, Steve Hovind, Scott Temple
  • Vehicle hood ornament
    Patent number: D963543
    Type: Grant
    Filed: September 23, 2020
    Date of Patent: September 13, 2022
    Assignee: PACCAR Inc
    Inventors: Jon Forrest Acton, Rick David Barr, Troy Robin McCuller, Tu Hoang Do, Leannah Marie Nichols
  • Switch cap
    Patent number: D963599
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: September 13, 2022
    Assignee: PACCAR Inc
    Inventors: Derek Scott Sancer, Louis Daniel Heilaneh, David Leetz