Abstract: Systems and methods for driving an accessory of a vehicle. The system includes a power take-off (PTO) device, a mechanically driven accessory, a battery, and power conversion circuitry electrically connected to the battery. The system also includes a first electric motor mechanically coupled to the PTO device and a second electric motor mechanically coupled to the mechanically driven accessory. The system further includes an engageable mechanical connector that, when engaged, mechanically couples the PTO device and the mechanically driven accessory.
Type:
Grant
Filed:
February 21, 2020
Date of Patent:
June 7, 2022
Assignee:
PACCAR Inc.
Inventors:
Michael D. Gerty, Constantin Emil Nedelcu, Uday Vadlamani, Iner Martin Jorgensen, Mark G. Malowicki
Abstract: Examples of the present disclosure describe systems and methods for determining a state of an air diverter valve of an air induction system of a vehicle. The determined state of the air diverter valve may be based on an intercooler-based estimated ambient air temperature and a comparison between an ambient air temperature sensor value and a pre-compressor sensor value.
Type:
Grant
Filed:
August 18, 2020
Date of Patent:
May 24, 2022
Assignee:
PACCAR INC.
Inventors:
John Echlin, Mark Lamont Lott, Christopher William John Mabson
Abstract: The present disclosure describes methods for evaluating ammonia storage capacity of a close-coupled SCR unit while remaining compliant with prescribed emissions limits, methods of controlling an emission aftertreatment system including multiple SCR units and emission management systems for a vehicle including an internal combustion engine and an emission aftertreatment system that includes two or more SCR units.
Type:
Grant
Filed:
August 25, 2020
Date of Patent:
May 10, 2022
Assignee:
PACCAR INC
Inventors:
Charles Wayne Reinhardt Swart, Cynthia Chaffin Webb, Maarten Meijer, Varun Ramesh
Abstract: Methods of improving SCR performance in heavy duty vehicles may use multiple interdependent control techniques to increase engine exhaust temperatures in a fuel efficient manner. One method combines cylinder deactivation and mechanical loading of an engine by an electrical generator used to input energy into an exhaust stream to manipulate the exhaust temperature through the combined effect of modified air-to-fuel ratio and supplemental energy input. In particular, cylinder deactivation may be used to modify the engine air flowrate and the electric generator may be used to apply mechanical load on the engine to manipulate the engine fuel flow rate to control the engine air-to-fuel ratio and thereby increase exhaust temperatures. The exhaust temperatures may be further increased by using the electrical generator to add the energy generated as input energy to the exhaust stream.
Type:
Grant
Filed:
March 12, 2020
Date of Patent:
April 26, 2022
Assignee:
PACCAR INC
Inventors:
Cynthia Chaffin Webb, Michael Douglas Gerty, Uday Vadlamani, Kimberly Denise McKinnon, Constantin Emil Nedelcu, Maarten Meijer, Charles Wayne Reinhardt Swart
Abstract: In some embodiments of the present disclosure, augmented reality and/or virtual reality technologies are used to present information for a vehicle to a technician. A virtual object model file that includes a context model and at least one assembly detail model is created based on a vehicle design model. A VR/AR device uses its camera to generate video of a vehicle, and superimposes a depiction of a vehicle component or assembly from the virtual object model file over the video in the location in which the vehicle component or assembly is actually located, as if the vehicle were “see-through.” The VR/AR device may then also allow the technician to select specific components of the depicted assembly in order to retrieve and display detailed information about the component.
Type:
Grant
Filed:
April 29, 2020
Date of Patent:
March 29, 2022
Assignee:
PACCAR Inc.
Inventors:
David Wei-Cheng Yin, Dirk Maiwald, William Timothy Ryan, Jr.
Abstract: A method of autonomously backing a vehicle (e.g., a tractor unit) to a trailer (e.g., a semi-trailer) comprising a trailer-mounted coupling device (e.g., a kingpin). The method includes determining, by an autonomous backing module of the vehicle, a target corresponding to the trailer-mounted coupling device; determining, by the autonomous backing module, a path to maneuver the vehicle to the target and align a vehicle-mounted coupling device (e.g., a fifth wheel) with the trailer-mounted coupling device, determining, by the autonomous backing module, commands to components of the vehicle to autonomously control the vehicle to maneuver along the determined path to the target, and transmitting, by the autonomous backing module, the commands to the components of the vehicle (e.g., a braking control module, a steering control module, and/or a torque request module). Suitably configured vehicles are also described.
Type:
Application
Filed:
June 1, 2018
Publication date:
February 24, 2022
Applicant:
PACCAR INC
Inventors:
Stan DELIZO, Yen-Lin HAN, Christian HEUSSY, Caroline HOFGAARD, Kirstin SCHAUBLE, Pauline SHAMMAMI, Oleksiy KHOMENKO, Austin CHONG, Ted SCHERZINGER
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:
Application
Filed:
August 18, 2020
Publication date:
February 24, 2022
Applicant:
PACCAR Inc
Inventors:
John Echlin, Mark Lamont Lott, Christopher William John Mabson
Abstract: Examples of the present disclosure describe systems and methods for determining a state of an air diverter valve of an air induction system of a vehicle. The determined state of the air diverter valve may be based on an intercooler-based estimated ambient air temperature and a comparison between an ambient air temperature sensor value and a pre-compressor sensor value.
Type:
Application
Filed:
August 18, 2020
Publication date:
February 24, 2022
Applicant:
PACCAR Inc
Inventors:
John Echlin, Mark Lamont Lott, Christopher William John Mabson
Abstract: In some embodiments, techniques are provided for autonomously backing a vehicle (such as a Class 8 truck) to a trailer. In some embodiments, environment sensors such as image sensors and range sensors mounted to the vehicle detect a trailer and determine distances between the trailer and the vehicle as well as relative angles of the trailer and the vehicle. In some embodiments, the vehicle determines a path to the trailer based on this information, and autonomously controls braking, torque, and/or steering of the vehicle to autonomously back the vehicle along the determined path.
Type:
Application
Filed:
June 1, 2018
Publication date:
February 17, 2022
Applicant:
PACCAR INC
Inventors:
Stan DELIZO, Ted SCHERZINGER, Yen-Lin HAN, Austin CHONG, Christian HEUSSY, Caroline HOFGAARD, Oleksiy KHOMENKO, Pauline SHAMMAMI, Kirstin SCHAUBLE
Abstract: A method of autonomously maneuvering a vehicle using environment sensors comprises calculating first coordinate data based on information received from environment sensors mounted on a first portion of the vehicle; determining, based on the first coordinate data, a first target at a first location; determining a path to maneuver the vehicle to the first location; determining and transmitting commands to autonomously control the vehicle to maneuver to the first location; calculating second coordinate data based on information received from environment sensors mounted on a second portion of the vehicle; determining based on the second coordinate data, a second target at a second location, determining a path to maneuver the vehicle from the first location to the second location; and determining and transmitting commands to autonomously control the vehicle to maneuver from the first location to the second location. Suitably configured vehicles (e.g., tractor units) are also described.
Type:
Application
Filed:
June 1, 2018
Publication date:
February 3, 2022
Applicant:
PACCAR INC
Inventors:
Stan DELIZO, Ted SCHERZINGER, Yen-Lin HAN, Austin CHONG, Christian HEUSSY, Caroline HOFGAARD, Oleksiy KHOMENKO, Pauline SHAMMAMI, Kirstin SCHAUBLE