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Cummins (CMI) USPTO patents

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1437 patents

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Systems and Methods for Reliably Detecting Wear Metal Particles In Lubrication Systems to Avoid Progressive Damage

A controller includes at least one processor coupled to a memory storing instructions that, when executed by the at least one processor, cause the at least one processor to: perform operations comprising: determining a concentration of a plurality of wear metal particles in a lubricant for an engine system; determining a filtered concentration of the plurality of wear metal particles using a baseline concentration of the plurality of wear metal particles; setting a diagnostic threshold based on the filtered concentration of the wear metal particles; and, responsive to determining that the concentration of the wear metal particles exceeds the diagnostic threshold, providing a notification.

Travis A. Anderson, Neha Chandrachud, Renae Christianson, Lorraine H. Myers, Pallav Pathak, Patrick J. Shook

Filed: 19 Oct 22

Electrical generator

Kevan John Simon, Neil Brown, Peethamparam Anpalahan, Philip Bend, Robert Mitchell Rolston

Filed: 15 Feb 22

Water drainage assemblies for aftertreatment systems

A water drainage assembly for an aftertreatment system comprises a first tube structured to be coupled to an outlet conduit of the aftertreatment system and has a first cross-sectional width.

Shaila Sangmeshwar Kalyanshetti, Jeffrey T. Sedlacek, Collin P. Veele, Douglas Robert Farnsworth

Filed: 7 Jul 20

Connection arrangement for a fluid transfer interface

A fluid transfer connector securely connects a port fitting of a fluid device to a fluid hose.

Shawn A. Rockey, J. Steven Kolhouse

Filed: 12 Dec 19

Electric Drive System for a Vehicle

An electric drive system for a vehicle and method includes controlling a propulsion system of the vehicle to operate according to a first torque-speed relationship between a power generated by an engine and a speed of the engine.

Henry Todd Young, Rekha Doddarangaiah Prasad, David John Scott, Timothy Robert Heller, Paul Wiczynski, Phanindra Garimella

Filed: 28 Jul 22

Curved Lobed Seal Lock Air Filter System

Various embodiments provide for a filter assembly.

Mark V. Holzmann, Ken Tofsland, Scott Gerald Manke, Wesley J. Martin, Benjamin L. Scheckel, Joseph Appelhans, Guiliang Zheng

Filed: 18 Oct 22

Diesel Exhaust Fluid Doser Protection During Cold Ambient Temperature Conditions Using Cylinder Cutout Methods

A method includes determining that at least one diesel emissions fluid (DEF) doser of an exhaust aftertreatment system is likely frozen based on at least one of an ambient air temperature or a DEF source temperature; operating an engine in a cylinder cutout mode in response to the determination that the at least one DEF doser is likely frozen; and, discontinuing the cylinder cutout mode in response to determining that the at least one DEF doser is in a predefined condition.

Ankit Raghunath Lad, Joshua Alan Lantz, Vaibhav J. Lawand, Nicholas R. Lewis, Ian W. McGiffen, Arulkumaran Muthukumarasamy

Filed: 10 Oct 22

Protuberant Compressible Filter Seal Design Utilizing Undercuts

Various embodiments relate to a filter housing seal member.

Mark V. Holzmann, Austin Schafer, Lucas Canik, Scott Gerald Manke, Rajath Martin

Filed: 17 Dec 20

Electric Drive System for a Vehicle

An electric drive system for a vehicle and a method includes determining a headroom target for a drive system of a vehicle that includes an engine.

Henry Todd Young, Rekha Doddarangaiah Prasad, David John Scott, Timothy Robert Heller, Venkat Jayaraman

Filed: 28 Jul 22

Oval Seal with Stabilization Contour

A filter element including a first endplate, a second endplate, filter media fitted between the first endplate and the second endplate, the first endplate including an opening that allows a working fluid to flow into or out of the filter media, the filter media allowing the working fluid to be filtered through the filter media and a seal member having an oval profile disposed on the first endplate and configured to seal with a filter housing, the seal member including an inner perimeter and an outer perimeter including a plurality of outwardly curved surfaces.

Scott W. Schwartz, Jessie A. Knight, Michael T. Zuroski

Filed: 10 Oct 22

Electric Drive System for a Vehicle

A method includes monitoring one or more of an ambient condition or an operational condition of a vehicle system while the vehicle system is stationary and a propulsion system of the vehicle system is operating at an idle speed, determining whether the one or more of the ambient condition or the operational condition satisfy one or more reduced auxiliary or parasitic load criteria, reducing one or more of an auxiliary load or a parasitic load responsive to determining that the one or more ambient condition or the operational condition satisfy the one or more reduced auxiliary or parasitic load criteria, and subsequently reducing the idle speed at which the propulsion system is operating to a slower speed following reducing the one or more of the auxiliary load or the parasitic load.

Henry Todd Young, Rekha Doddarangaiah Prasad, Timothy Brown, David John Scott, Paul Wiczynski, Phanindra Garimella

Filed: 28 Jul 22

Increase Aftertreatment Temperature During Light Load Operation

A method includes: determining that at least one cylinder of a first cylinder bank of an engine is active; determining that at least one cylinder of a second cylinder bank of the engine is inactive; receiving an inlet temperature of a selective catalytic reduction system; comparing the inlet temperature to a temperature setpoint; and adjusting at least one of a first exhaust manifold pressure setpoint for the first cylinder bank or a second exhaust manifold pressure setpoint for the second cylinder bank based on the comparison.

Travis Alva Anderson, Joan M. Wills, Rajkumar Subramanian, Vaibhav Daramwar, Pagalavan Mathari Bakthavatsalam, Paul Daniel Borisuk

Filed: 14 Oct 22

Electric Drive System for an Engine

A vehicle control system determines that a vehicle is not fully loaded with a payload, determines an upper limit on engine propulsion power for the vehicle that is not fully loaded with the payload, and reduces an engine speed of the vehicle to a determined speed at which a power capability of an engine of the vehicle matches the upper limit on the engine propulsion power of the vehicle.

Henry Todd Young, Rekha Doddarangaiah Prasad, Timothy Brown, David John Scott, Timothy Robert Heller, Phanindra Garimella

Filed: 28 Jul 22

Rotating Coalescing Element with Directed Liquid Drainage and Gas Outlet

A rotating coalescer having an ejected coalesced liquid separating device is described.

Brian W. Schwandt, Christopher E. Holm, Chirag D. Parikh, Suryanarayanan Paneerselvam, Peter K. Herman

Filed: 13 Oct 22

Darren Bawden Hickey

Filed: 6 Aug 20

Systems and methods for implementing corrections to a reductant delivery system in an exhaust aftertreatment system of an internal combustion engine

An exhaust aftertreatment system includes a catalyst, an exhaust conduit system, a first sensor, a second sensor, a reductant pump, a dosing module, and a reductant delivery system controller.

Jinqian Gong, Arun Kumar Dasari, Gautam Sharma

Filed: 16 May 22

Aftertreatment System Loading Tool

Systems and apparatuses include one or more processing circuits comprising one or more memory devices coupled to one or more processors, the one or more memory devices configured to store instructions thereon that, when executed by the one or more processors, cause the one or more processors to: receive a target temperature and store the target temperature on the one or more memory devices, output the target temperature, receive temperature information from a sensor positioned downstream of an engine and upstream of a aftertreatment system catalyst, generate a current temperature based on the temperature information, output the current temperature, compare the current temperature to the target temperature, output a loading instruction based on the comparison of the current temperature and the target temperature, and generate a graphical user interface including the output target temperature, the output current temperature, and the output loading instruction.

Daniel J. Robinson, Frank L. Ruggiero, Abhinav V. Rao, Azeezat Mohammed, Michael J. Zaitz, Shreyansh Gaur, Abhishek Manekar

Filed: 23 Jul 21

Filter Media Holder for Filter Assemblies

A filter media holder for securing a filter media within a filter housing comprises a first grill plate having a plurality of first apertures defined therethrough, and a second grill plate having a plurality of second apertures defined therethrough.

Benjamin L. SCHECKEL, Bradley A. SMITH

Filed: 7 Dec 20

Stator for a Rotating Electrical Machine

A stator for a rotating electrical machine is disclosed, the stator comprising a stack of stator laminations (20) forming a stator core (48; 60; 74; 80; 82).

Zhanhui Feng, Qiang Wu, Xiaoyan Shen

Filed: 4 Nov 20

Reversible Fuel Cell System Architecture

A method of maintaining a thermal balance in a solid oxide reversible fuel cell system comprising a solid oxide reversible fuel cell, an air intake for providing air to the solid oxide reversible fuel cell, and a steam reformer fluidly coupled to the solid oxide fuel cell for providing fuel to the solid oxide reversible fuel cell.

Darren B. Hickey

Filed: 18 Dec 20

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