Cummins Inc.

Cummins Filtration Ip, Inc.

Cummins Intellectual Property, Inc.

Cummins Engine Company, Inc.

Cumming Intellectual Property, Inc.

Gary Charles Salemme

Axel Otto Zur Loye

Richard J Ancimer

Colin L Norris

John Franklin Wright

Ousmane Gueye

Randy W Nelson

Vivek Anand Sujan

J Steven Kolhouse

Kenneth M Follen

Thomas M Yonushonis

Phani Kiran Vajapeyazula

An Wu

Xing Jin

Manik Narula

Apurva Arvind Chunodkar

Bryan Ellis Blackwell

Hasan Mohammed

Matthew L Anderson

Lisa A Orth-Farrell

John L Hoehne

Conrad J Simon, Iii

David A Bolis

Timothy J Proctor

Ward R Edwards, Ii

John R Mills

Lawrence H Becker

Systems and methods for conditioning an aftertreatment system. For example, a computer-implemented method for conditioning an aftertreatment system of a hybrid system including an electric motor and a combustion engine includes: determining whether the aftertreatment system is in a first temperature zone below a first temperature threshold; determining whether a power demand corresponding to the operation of the hybrid system is in a first power demand zone below a power threshold; and if the aftertreatment system is determined to be in the first temperature zone and the power demand of the hybrid system is determined to be in the first power demand zone, setting the hybrid system to compressor mode to heat the aftertreatment system.

Systems and methods for conditioning an aftertreatment system using an electric machine to drive a combustion engine

A method for warming an aftertreatment system of an engine system while an engine of the engine system is not running comprising starting at least one of an electric compressor and an electric heater using stored electrical energy and passing air through the engine system to at least a portion of the aftertreatment system when the engine of the engine system is not running.

Systems and methods for heating an aftertreatment system

An exhaust aftertreatment system for treating exhaust flow from an internal combustion engine, and associated method, allows for independent control of exhaust flow through plural exhaust legs of the exhaust aftertreatment system. The independent control of exhaust flow is carried out by adjusting a valve positioned in each the exhaust legs based on a value of a signal generated by a flow measurement device positioned along at least one of the exhaust legs. The valves can be adjusted to force a target flow in a exhaust leg, relative flow among exhaust legs, exhaust temperature in an exhaust leg, exhaust backpressure and/or imbalance within the exhaust legs.

Multi-leg exhaust aftertreatment system and method

A system for a vehicle includes a powertrain system including an engine, a transmission, a drive shaft, and a final drive; and a controller communicably coupled to the powertrain system. The controller is structured to: receive a shift schedule for the transmission of a vehicle, the shift schedule indicating when shift events occur based on operation of the vehicle; receive vehicle operation data during operation of the vehicle, the vehicle operation data including a current combustion recipe for the engine; determine a predicted impact of a scheduled shift event on a fuel consumption rate of the vehicle based on the current combustion recipe for the engine; determine an adjustment to the scheduled shift event based on the predicted impact; and provide a command to implement the adjustment to the scheduled shift event to the transmission of the vehicle.

Integrated powertrain system

Apparatuses, methods and systems including dynamic estimations of vehicle mass and road grade estimation are disclosed. One exemplary embodiment is a method including operating a vehicle system to propel a vehicle, determining with a controller a vehicle mass estimate and an uncertainty of the vehicle mass estimate, evaluating with the controller the uncertainty of the vehicle mass estimate relative to at least one criterion, if the uncertainty of the vehicle mass estimate satisfies the criterion, determining with the controller a road grade estimate, and controlling with the controller utilizing the road grade estimate at least one of a vehicle speed and an engine output.

Vehicle controls including dynamic vehicle mass and road grade estimation during vehicle operation

An exhaust aftertreatment filter and method is provided for filtering engine exhaust, and reduces the maximum temperature experienced by the filter including during regeneration including during burn-off of trapped contaminant particulate including carbon oxidation combustion.

Exhaust aftertreatment filter with reduced maximum temperature

An apparatus, system, and method are disclosed for enhancing the efficiency of an exhaust aftertreatment application. The method may include determining the current operating conditions of the application, the optimal operating conditions of a target component, and the performance criteria of a conditioning component relative to the optimal operating conditions. The method may include determining an optimal fraction of an exhaust flow to pass through the conditioning component to achieve the optimal operating conditions of the target component. The method may further include manipulating a bypass valve position based on the optimal fraction of exhaust flow to pass through the conditioning component. The target component may be a selective catalyst reduction (SCR) component that operates optimally at a designed NO/NOmole ratio. The conditioning component may be a diesel oxidation catalyst (DOC) that affects the NO/NOmole ratio. A method is thereby provided to operate an exhaust aftertreatment application more efficiently relative to an application without the invention.

Apparatus, system, and method for exhaust aftertreatment efficiency enhancement

An engine control system for optimizing a tradeoff between turbocharger lag and production of exhaust emissions including altitude and intake manifold air temperature compensation includes a turbocharger boost sensor, an engine speed sensor, an ambient pressure sensor and an intake manifold air temperature sensor, each providing appropriate sensor signals to a control computer. The control computer is operable to limit fueling signals supplied to the engine fuel system based on turbocharger boost, engine speed, ambient pressure and intake manifold air temperature to thereby optimize a tradeoff between turbocharger lag and production of black smoke and other exhaust emissions while compensating for changes in altitude and intake manifold air temperature. In one preferred embodiment, the control computer includes a fueling table stored therein which maps boost pressure and engine speed values to appropriate fueling values, an altitude correction table stored therein which maps boost pressure and ambient pressure to appropriate fueling correction values and an intake air temperature correction table store therein which maps intake manifold air temperature values to appropriate intake air temperature correction values. The control computer is operable to limit the fueling signals based on the fueling values from the fueling table, the fueling correction values from the altitude correction table and the fueling correction values from the intake air temperature correction table, to thereby maintain a desired tradeoff between turbocharger lag and production of black smoke and other exhaust emissions while compensating for changes in ambient pressure and intake manifold air temperature.

Engine control system for minimizing turbocharger lag including altitude and intake manifold air temperature compensation

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Columbus, IN, United States of America

Gary Charles Salemme