Abstract: Systems and methods for determining a position of a vehicle driver and adjusting one or more digital mirrors based on the determined position. According to examples, the position of the driver's eyes and/or head are sensed by one or more driver position sensors and determined by a driver position processor. An external camera captures images external to the vehicle, and a video processor crops, zooms, pans, and/or otherwise adjusts the images to be displayed based on the position of the driver's eyes and/or head.
Abstract: The present disclosure relates to systems and methods of automatically distributing powertrain demand between tandem drive axles in a tandem drive axle system for balanced tire wear between the tandem drive axles. Examples described herein analyze input signals collected from various vehicle sensors about operating conditions of the front and back tandem drive axles, and automatically bias a distribution of torque demand between the front and back tandem drive axles to correct for asymmetric wear based on known normal wear of the tires under like operating conditions.
Type:
Application
Filed:
February 20, 2025
Publication date:
June 12, 2025
Applicant:
PACCAR Inc
Inventors:
Jordan Michael HOUSER, Benjamin Thomas GROVER, Charles Wayne Reinhardt SWART
Abstract: A heavy duty truck includes a diesel engine that generates an exhaust gas flow and an exhaust after-treatment system for treatment of the exhaust gas flow. The exhaust after-treatment system includes at least one heater and at least one selective catalytic reduction system downstream of the heater. The heater is operated to inject supplemental heat energy into the exhaust gas flow at a rate based on a difference between a target rate of heat energy in the exhaust gas flow at an inlet to the selective catalytic reduction system and a rate of heat energy supplied to the exhaust gas flow from the diesel engine.
Type:
Grant
Filed:
September 9, 2024
Date of Patent:
June 3, 2025
Assignee:
PACCAR Inc
Inventors:
Cynthia Chaffin Webb, Charles Wayne Reinhardt Swart, Maarten Meijer, Varun Ramesh, John Lahti
Abstract: A vehicle, including: a windshield; and a first wiper arm including a first segment and a second segment attached to the first segment, wherein the first wiper arm is operatively attached to the vehicle at a first side of the vehicle such that the first wiper arm is rotatable about a first axis of rotation between at least an outer position and an inner position, and wherein the first wiper arm is shaped such that, when the first wiper arm is in the outer position, the first segment extends from the first axis of rotation away from a width center of the vehicle, and the second segment extends from the first segment at least partly along a height direction of the vehicle.
Abstract: The present disclosure describes systems and methods for automated determination of certain physical characteristics of a trailer in a tractor-trailer truck and positional arrangement between the trailer and tractor of the truck. The technology may include a camera mounted on the tractor to acquire an image of at least a rear portion of the trailer; a sensor configured to acquire information relating to the trailer angle; a processor configured to determine a position of the rear portion of the trailer in the image, and determine the length of the trailer based at least in part on the determined position of the rear portion of the trailer in the image and the information relating to the trailer angle.
Type:
Grant
Filed:
November 24, 2021
Date of Patent:
April 8, 2025
Assignee:
PACCAR Inc.
Inventors:
Stanley W DeLizo, Ian David O'Connor, August Avantaggio, Kyle Christopher Wynn Johnson
Abstract: The present disclosure relates to systems and methods of automatically distributing powertrain demand between tandem drive axles in a tandem drive axle system for balanced tire wear between the tandem drive axles. Examples described herein analyze input signals collected from various vehicle sensors about operating conditions of the front and back tandem drive axles, and automatically bias a distribution of torque demand between the front and back tandem drive axles to correct for asymmetric wear based on known normal wear of the tires under like operating conditions.
Type:
Grant
Filed:
June 30, 2023
Date of Patent:
March 25, 2025
Assignee:
PACCAR Inc
Inventors:
Jordan Michael Houser, Benjamin Thomas Grover, Charles Wayne Reinhardt Swart
Abstract: Generally described, an articulated wheel fairing system for a vehicle having a steering system with a neutral steering input and a non-neutral steering input is provided. The articulated wheel fairing system provides clearance to the steer tire and wheel of the vehicle during non-neutral steering input, such as when the vehicle is turning at slower road speeds. The wheel fairing system generally includes an articulating fairing panel configured to cover at least a portion of the steer wheel, where the fairing panel movable from a first position adjacent to the steer wheel, such as when the vehicle is traveling at higher road speeds, to a second position outwardly from the first position. The wheel fairing system includes a mechanical linkage or actuator coupled to the fairing panel and the vehicle and configured to move the frame between the first position and the second position relative to the vehicle.
Abstract: An engine control system for a vehicle includes at least one processor; and a memory, operatively connected to the at least one processor and storing instructions that, when executed by the at least one processor and in response to receiving an engine start signal, cause the engine control system to perform a method, the method including causing a crankshaft of an engine of the vehicle to begin to rotate and to rotate through a first plurality of rotations, and causing, for each combustion chamber of at least one combustion chamber of the engine, an exhaust valve of the combustion chamber to remain in an opened position while the crankshaft rotates through the first plurality of rotations and prior to fuel being injected into the combustion chamber.
Type:
Application
Filed:
June 5, 2024
Publication date:
March 13, 2025
Applicant:
PACCAR Inc
Inventors:
Charles Wayne Reinhardt Swart, Stephen Anthony Ciatti, Nick Hertlein
Abstract: Exhaust systems are described. In examples, an exhaust flow path couples exhaust ports with one or more turbochargers of an engine. The exhaust flow path may have a portion flowing through a cylinder head (e.g., couplable to the exhaust ports) and a portion flowing through an exhaust manifold (couplable to the cylinder head and the turbocharger(s)). The flow paths may be shaped to reduce the sharpness of turns between the exhaust ports and the turbocharger(s). For example, curves along the flow path may be less than 90 degrees or have a minimum curve radius, which may vary along the flow path. Additionally, at least two, independent flow paths may exist between the exhaust ports and the turbocharger(s). The cross-sectional shape of any part of the flow path may be elliptical, including at inlets and outlets.