Cummins Inc.

Cummins Ip, Inc.

Cummins Intellectual Property, Inc.

Eaton Corporation

Paccar Inc.

Tula Technology, Inc.

Cummins Filtration Ip, Inc.

Timothy R Frazier

John N Chi

Vivek Anand Sujan

Linsong Guo

Martin T Books

Aleksey Yezerets

Neal W Currier

Govindarajan Kothandaraman

John M Mulloy

Sriram S Popuri

Indranil Brahma

Lisa Farrell

Divakar Rajamohan

Joan M Wills

Yongjie Zhu

Louis Joseph Serrano

J Steven Kolhouse

Samuel C Geckler

Phanindra V Garimella

Andrew W Osburn

Marten H Dane

Hasan Mohammed

Abdul R Ofoli

Weiwen Wang

Joe V Hill

Steven John Small

Robert Kern

Ryan Edgecomb

Lk Hwang

Kenneth M Follen

Morgan MacKenzie Andreae

Krishna Kamasamudram

Leslie Raymond Wolf

Suk-Min Moon

Donald W Stanton

Xi Wei

Shankar Kumar

Bruce G Bunting

Ken Federle

Kyle M Miller

Andy Osburn

Todd A Sheridan

Yi Xu

Vivek J Sujan

Systems and methods to extend a life of a component of a cylinder deactivation system are provided. A method includes initiating, by a controller, a CDA mode for an engine; determining, by the controller, a first cycle count for a first oil control solenoid of the CDA system; determining, by the controller, a second cycle count for a second oil control solenoid of the CDA system; comparing, by the controller, the first cycle count and the second cycle count; and modifying, by the controller, operation of the CDA mode for the engine based on the comparison.

Dynamic cylinder deactivation life factor to modify cylinder deactivation strategy

Systems and methods to extend a life of a component of a cylinder deactivation system are provided. A method includes generating, by a controller, an initial life factor for the component; initiating, by the controller, a CDA mode for an engine; determining, by the controller, an actual life factor for the component, the actual life factor determined by comparing a number of switching events of a cylinder in the CDA mode to a number of cycles of the cylinder in the CDA mode; comparing, by the controller, the actual life factor to the initial life factor; and modifying, by the controller based on the comparison, operation of the engine in the CDA mode to adjust the actual life factor.

This disclosure provides a system and method for controlling internal combustion engine system to reduce operation variations among plural engines. The system and method utilizes single-input-single-output (SISO) control in which a single operating parameter lever is selected from among exhaust gas recirculation (EGR) fraction and charge air mass flow (MCF), and a stored reference value associated with the selected lever is adjusted for an operating point in accordance with a difference between a measured emissions characteristic and a pre-calibrated reference value of the emissions characteristic for that operating point. Adjusting the selected operating parameter lever towards the theoretical pre-calibrated reference value of the operating parameter lever for each of plural operating points can reduce engine-to-engine variations in engine out emissions.

Engine feedback control system and method

There is disclosed method and systems for charging a depleted or spent solid storage media with gaseous ammonia.

Solid storage media charging with ammonia for use in selective catalytic reduction

A system includes an internal combustion ignition engine with an exhaust gas flow, a particulate filter in the exhaust gas flow, a NOreduction catalyst in the exhaust gas flow downstream of the particulate filter, a first oxygen sensor coupled to the exhaust gas flow downstream of the NOreduction catalyst, and a second oxygen sensor coupled to the exhaust gas flow between the particulate filter and the NOreduction catalyst. A controller includes an exhaust conditions module that interprets a first oxygen signal from the first oxygen sensor and a second oxygen signal from the second oxygen sensor and a combustion control module that commands a high engine-out air-fuel ratio when the first oxygen signal indicates a low oxygen content and commands a low engine-out air-fuel ratio when the first oxygen signal indicates a high oxygen content.

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This disclosure provides a method and system for determining recommendations for vehicle operation that reduce soot production in view of a diesel particulate filter (DPF) of an exhaust aftertreatment system. Recommendations generated can reduce excessive particulate matter (PM) production during transient engine events and provide for operating conditions favorable for passive regeneration. In this way, less frequent active regeneration of the DPF is needed and/or more opportunities are provided for passive regeneration. The system and method can utilize location and terrain information to anticipate and project a window of operation in view of reducing soot production and soot loading of the DPF, or provide the operator with instruction when such opportunities are present or will soon be encountered.

System and method of DPF passive enhancement through powertrain torque-speed management

A system and method are provided for controlling an air handling system for an internal combustion engine including a turbocharger having a variable geometry turbine fluidly coupled to an exhaust manifold of the engine and a compressor fluidly coupled to an intake manifold of the engine, and an electric motor coupled to a rotatable shaft connected between the compressor and the variable geometry turbine. A target torque required to drive the compressor to achieve target compressor operating parameters is determined, a maximum available torque that can be supplied by the variable geometry turbine in response to a target exhaust gas flow through the variable geometry turbine is determined, and the electric motor is enabled to supply supplemental torque to the rotatable shaft if the target torque is greater than the maximum available torque.

System for controlling an air handling system including an electric motor assisted variable geometry turbocharger

A method and related apparatuses and systems for operating an engine that provides a high level of NOto regenerate particulate matter deposited on a particulate filter. The method includes producing NOin response to a NOexcess capacity value of a NOreduction device. The method optionally includes determining that particulate matter exceeds an enhanced passive regeneration threshold amount before providing a high level of NO. The method optionally includes producing a higher particulate emissions output value to warm the engine exhaust to bring an aftertreatment catalyst to an optimal operating temperature. The method can be implemented with a closed loop feedback controller, which may be configured to reduce particulate matter variation.

A system controlling an air handling system for an internal combustion engine. An EGR valve in-line with an EGR passageway fluidly coupled between exhaust and intake manifolds of the engine is controllable between fully closed open positions to control a flow rate of exhaust gas through the EGR passageway. A control circuit determines a pump enable value as a function of at least one of a target engine speed and a total fueling target, determines a maximum achievable flow rate of recirculated exhaust gas through the EGR passageway with the EGR valve in the fully open position, and activates an electric gas pump to increase the flow rate of exhaust gas through the EGR passageway if the pump enable value exceeds a threshold pump enable value and a target flow rate of recirculated exhaust gas through the EGR passageway is less than the maximum achievable flow rate.

System for controlling an air handling system including an electric pump-assisted exhaust gas recirculation

According to one embodiment, an apparatus includes an electronic controller () for an internal combustion engine () of a motor vehicle. The electronic controller includes a location detection module () configured to identify a location of the motor vehicle by a global positioning system (GPS) device (). Also, the electronic controller includes a driving condition prediction module () configured to determine a direction of travel and access geographic information data for a path to be traveled by the motor vehicle. The electronic controller also has a simulation module () configured to simulate engine performance including effects from parasitic loads. Still further, the electronic controller includes a parasitic load control module () configured to adjust the timing for one or more of a regeneration process for an exhaust filter and at least one other parasitic load in order to maintain engine performance at or above a predetermined threshold.

Apparatus, system, and method for adaptive engine system control with integrated global position sensing

This disclosure provides a system and method for determining cylinder deactivation in a vehicle engine to optimize fuel consumption while providing the desired or demanded power. In one aspect, data indicative of terrain variation is utilized in determining a vehicle target operating state. An optimal active cylinder distribution and corresponding fueling is determined from a recommendation from a supervisory agent monitoring the operating state of the vehicle of a subset of the total number of cylinders, and a determination as to which number of cylinders provides the optimal fuel consumption. Once the optimal cylinder number is determined, a transmission gear shift recommendation is provided in view of the determined active cylinder distribution and target operating state.

System and method of cylinder deactivation for optimal engine torque-speed map operation

A technique for engine control to account for fuel effects including providing an internal combustion engine and a controller to regulate operation thereof, the engine being operable to combust a fuel to produce an exhaust gas; establishing a plurality of fuel property inputs; establishing a plurality of engine performance inputs; generating engine control information as a function of the fuel property inputs and the engine performance inputs; and accessing the engine control information with the controller to regulate at least one engine operating parameter.

Engine control techniques to account for fuel effects

A system and method are provided for controlling an air handling system for an internal combustion engine including a turbocharger having a variable geometry turbine and a compressor having a fresh air inlet fluidly coupled to ambient and to an air outlet of an electric air pump. An air pump enable value as determined a function of target engine speed and total fuel target values and an air flow target is determined as a function of a target fresh air flow value. Operation of the electric air pump is activated to supply supplemental air flow to the fresh air inlet of the compressor if the air pump enable value is greater than a threshold air pump enable value and the air flow target does not exceed a maximum flow value.

System for controlling an air handling system including an electric pump-assisted turbocharger compressor

Growing community of inventors

Columbus, IN, United States of America

Timothy R Frazier