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Paccar Inc patents

Recent patent applications related to Paccar Inc. Paccar Inc is listed as an Agent/Assignee. Note: Paccar Inc may have other listings under different names/spellings. We're not affiliated with Paccar Inc, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "P" | Paccar Inc-related inventors

Fuel efficiency system for a vehicle

Vehicle systems and components are set forth, which aim to reduce rolling friction caused in part by the contact between the vehicle's tires and the ground surface over which the vehicle is traversing. These systems and/or components thereof may increase the overall fuel efficiency of a vehicle. ... Paccar Inc

Intermittent restart for automatic engine stop start system

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. ... Paccar Inc

Systems and methods for improving electronic component quality during the manufacture of vehicles

Embodiments of the present disclosure are directed to improving the quality of electronic components suitable for use in vehicles such as class 8 trucks. Vehicles such as class 8 trucks are becoming more complex and using more electronic components, and so the likelihood of proper functionality and successful integration of such components must be ensured before being incorporated into a manufactured vehicle. ... Paccar Inc

Intermittent restart for automatic engine stop start system

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. ... Paccar Inc

Use of laser scanner for autonomous truck operation

A vehicle includes one or more laser scanners and an on-board vehicle computer system communicatively coupled to the laser scanners. The computer system uses information (e.g., coordinate points) obtained from the laser scanners to calculate a trailer angle (e.g., a cab-trailer angle) for the vehicle. ... Paccar Inc

Method to elevate idle speed to launch a vehicle with manual transmission

A method of controlling an idle speed for an engine of a vehicle includes the steps of sensing a vehicle speed and a parking brake position. Clutch position is also sensed. ... Paccar Inc

Method of offering finely calibrated engine speed control to a large number of diverse power take-off (pto) applications

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. ... Paccar Inc

Cyclonic thermal diffuser and method

A diffuser is configured for use on a vehicle having an engine and an exhaust pipe. The diffuser includes a conduit with a first end configured to receive exhaust gases from the engine. ... Paccar Inc

Crankcase ventilation and centrifugal oil filter

A filter for an internal combustion engine includes an oil filter and a separator. The oil filter has a rotor that rotates about an axis in response to oil that is discharged from the rotor. ... Paccar Inc

Self-stowing rectangular pontoon trailer skirts

A stowable side fairing for a tractor-trailer having a frame includes first and second panels rotatably coupled to the frame and extending downward from the frame. A cross-member is rotatably coupled at a first end to the first panel and at a second end to the second panel. ... Paccar Inc

Systems and methods for determining speed control management settings

Methods and devices for determining speed control management settings are provided. A vehicle configuration is obtained, specifying at least a transmission, including a number of gears present in the transmission. ... Paccar Inc

Systems and methods for determining the quantity of a combustion product in a vehicle exhaust

Exhaust after treatment systems for internal combustion engine powered vehicles are provided. One system includes logic in the form of one or more routines implemented by one or more of the system's components for determining the quantity of certain combustion products present in the exhaust that exits an oxidation catalyst, such as a diesel oxidation catalyst (doc), without the use of a specific sensor for each combustion product. ... Paccar Inc

Handheld testing device of nitrogen oxide sensor

A testing device is capable of testing a nox sensor in an environment that does not have dew point detection capability. The testing device includes a connector configured to be coupled to the nox sensor, an output indicator, and circuitry. ... Paccar Inc

Surface-modified catalyst precursors for diesel engine aftertreatment applications

The present disclosure features a method of making an engine aftertreatment catalyst, where the engine aftertreatment catalyst includes a metal oxide, a metal zeolite, and/or vanadium oxide when the metal oxide is different from vanadium oxide, each of which can be independently surface-modified with a surface modifier. The method includes providing a solution including an organic solvent and an organometallic compound; mixing the solution with a metal oxide, a metal zeolite, and/or a vanadium oxide to provide a mixture; drying the mixture; and calcining the mixture to provide a surface-modified metal oxide catalyst, a surface-modified metal zeolite catalyst, and/or a surface-modified vanadium oxide catalyst. ... Paccar Inc

05/11/17 / #20170128885

Thermally integrated compact aftertreatment system

A thermally integrated catalyst aftertreatment exhaust system includes a flow channel that directs diesel exhaust through a diesel oxidation catalyst unit that includes a diesel oxidation catalyst, by a doser that introduces def into the diesel exhaust, through a mixing chamber that includes a static metallic mixer coated with a def hydrolysis catalyst, and through an scr unit that includes an scr catalyst. The diesel oxidation catalyst converts a portion of diesel exhaust into water, carbon dioxide, or nitrogen dioxide. ... Paccar Inc

05/11/17 / #20170128884

Electrochemical reductant generation while dosing def

A diesel exhaust fluid (def) doser includes a def inlet configured to receive def, a def outlet configured to spray def out of the def doser, and an electrochemical cell. The electrochemical cell is located between the def inlet and the def outlet and couplable to a power source. ... Paccar Inc

05/11/17 / #20170128883

High efficiency and durability selective catalytic reduction catalyst

This disclosure features an exhaust aftertreatment system that includes a selective catalytic reduction catalyst that includes a metal oxide catalyst and a metal zeolite catalyst, a metal oxide catalyst that is other than a vanadium oxide catalyst and a vanadium oxide catalyst, or a metal oxide catalyst that is other than a vanadium oxide catalyst together with a metal zeolite catalyst and a vanadium oxide catalyst. When used in a selective catalytic reduction system in a diesel engine, the catalyst composition can increase a conversion efficiency of nitrogen oxides (nox) to nitrogen and water by a minimum of 2 percent compared to the metal zeolite catalyst alone, the metal oxide catalyst alone, or the vanadium oxide catalyst alone, when present.. ... Paccar Inc

05/11/17 / #20170128882

Binary catalyst based selective catalytic reduction filter

Catalytic cores for a wall-flow filter include juxtaposed channels extending longitudinally between an inlet side and an outlet side of the core, wherein the inlet channels are plugged at the outlet side and outlet channels are plugged at the inlet side. Longitudinal walls forming the inlet and outlet channels separate the inlet channels from the outlet channels. ... Paccar Inc

05/11/17 / #20170128881

Diesel oxidation catalyst with minimal platinum group metal content

The present disclosure describes a diesel oxidation catalyst, including a metal oxide including a metal on a metal oxide surface, and less than 10 g/ft3 by weight of pt or pd, wherein the diesel oxidation catalyst oxidizes carbon monoxide and hydrocarbons of a diesel exhaust to carbon dioxide and water.. . ... Paccar Inc

04/27/17 / #20170114695

Combining model and delta pressure based soot load estimates

A system for estimating an amount of soot in an exhaust particulate filter includes a delta p soot load estimate generator configured to generate a first soot load estimate as a function of a pressure drop and a mass flow of exhaust. The system further includes a model estimate generator configured to generate a second soot load estimate as a function of a modeled engine performance. ... Paccar Inc

04/20/17 / #20170106338

Reductant dosing control using prediction of exhaust species in selective catalytic reduction

A system and related method for controlling reductant dosing in a selective catalyst reduction system includes a chamber containing a catalyst, and a controllable reductant dosing system that includes a controllable injector connected to a reservoir of reductant, and a controller that obtains inlet exhaust temperature, speed, and composition information, for example, from one or more sensors in the exhaust stream. The controller solves a set of coupled equations comprising (i) one-dimensional, steady ammonia mass balance equations and (ii) one-dimensional, steady species mass transfer equations, to calculate a one-dimensional distribution of ammonia storage in the catalyst and a one-dimensional distribution of exhaust species concentrations through the scr system including a concentration of ammonia and a concentration of one or more nitrogen oxides at the scr outlet; and uses the solution to control the injector. ... Paccar Inc

01/12/17 / #20170011569

Real-time driver reward display system and method

A method and system for improved driver reward display functionality. A driver reward is calculated based on inputs, such as freight fuel, fuel economy, and % idle. ... Paccar Inc

01/12/17 / #20170008520

Predictive cruise control system with advanced operator control and feedback

An on-board vehicle computer system for a vehicle includes at least one processing unit and a memory having stored therein computer-executable instructions configured to cause the on-board vehicle computer system to implement various aspects of a predictive cruise control (pcc) system. In one aspect, the computer system provides a plurality of available speed control bands in a pcc system, and the available speed control bands are selectable by an operator of the vehicle. ... Paccar Inc

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