Cummins Inc.

Scania Cv Ab

Hydrogenics Corporation

Agneya Turlapati

Philipe F Saad

Kristopher R Bare

David Paul Genter

Robin J Bremmer

Janardhan Kodavasal

Ved Merchant

Archit N Koti

Rohit Saha

Sumit Tripathi

Joseph P Chandraraj

Brian K Landes

Milan K Visaria

Vivek Anand Sujan

Martin T Books

Richard J Ancimer

Carlos Alcides Lana

Christopher R Nelson

Sriram S Popuri

Xing Jin

Aaron William Beinborn

Xiaobo Song

Steven J Kolhouse

Patrick Kaufman

Jason Robert Griffin

Scott Robert Bardakjy

Edward J Lyford-Pike

Kieran J Richards

Elizabeth Weitzel

Chinmay Rao

Michael Bates

Veronica Susan Perks

Jithin Benjamin

Sunil S Bahulikar

Trideep Singh

Pradheepram Ottikkutti

Jairo A Martinez Garcia

Kunlun Liu

Sravan Kumar Ragi

Heonjoong Lee

Yongfei Yu

Anamitra Bhattacharyya

Jifei Yan

Brendan C Norton

Suhas Deutkar

Sachin Vinayak Damle

Sandesh Sadawarte

Sharon Liu

The present disclosure relates to systems and methods for optimizing refueling hydrogen in vehicles. Specifically, the present disclosure relates to identifying a refueling station, conducting a safety check on the vehicle based on a distance between the vehicle and the refueling station, switching a power source of the vehicle to only be a battery, swapping an empty or partially filled hydrogen fuel tank on the vehicle with a filled or partially filled hydrogen fuel tank at the refueling station, and switching the power source of the vehicle to include a hydrogen power source.

Fuel refilling system and method for equipment powered by fuel

A filtration system for a fuel cell hybrid propulsion system includes a first stage filter, a second stage filter positioned downstream of the first stage filter, and a third stage filter positioned downstream of the second stage filter and configured to be positioned upstream of a fuel cell system. The first stage filter has first pores with a first mean pore size. The second stage filter has second pores with a second mean pore size. The third stage filter has third pores with a third mean pore size. The second mean pore size is less than the first mean pore size. The third mean pore size is less than or equal to the second mean pore size. The first, second, and third stage filter are structured to filter an airflow prior to being received by the fuel cell system.

Multi-stage filtration system for fuel cell hybrid propulsion system

A method includes initiating a low engine-out NOx (LEON) mode by controlling a component of a vehicle having an aftertreatment system to decrease an instantaneous engine-out NOx (EONOx) amount. The method also includes comparing a temperature of the aftertreatment system to a threshold temperature. The method also includes responsive to determining that the temperature of the aftertreatment system exceeds the threshold temperature, disengaging the LEON mode. The method also includes responsive to determining that the temperature of the aftertreatment system is below the threshold temperature, comparing a NOx value to a NOx value threshold. The method also includes disengaging the LEON mode responsive to determining that the NOx value exceeds the NOx value threshold.

Systems and methods for cold operation NOx burden reduction

The present disclosure generally relates to systems and methods for implementing power a power split between a first and a second power source in a fuel cell powertrain system. The method includes receiving an input into a processor of the fuel cell powertrain system, determining an output by the processor, communicating the output by the processor to a system controller and determining a power split by the system controller. The first power source includes a fuel cell system and the second power source is selected from a battery system or an engine, and the input includes a life or health of at least one of the first power source or the second power source.

Fuel cell powertrain systems and methods for power split and allocation in fuel cell powertrain systems

A method includes: initiating a low engine-out NOx (LEON) mode by controlling a component of a vehicle having an aftertreatment system to decrease an instantaneous engine-out NOx (EONOx) amount; comparing a temperature of the aftertreatment system during the LEON mode to a warm-operation threshold temperature; responsive to determining that the temperature of the aftertreatment system exceeds the warm-operation threshold temperature, disengaging the LEON mode; responsive to determining that the temperature of the aftertreatment system is below the warm-up operation threshold temperature, comparing information indicative of an operating status of the vehicle to a LEON exit threshold; and disengaging the LEON mode responsive to determining that the information indicative of the operating status of the vehicle during the LEON mode exceeds the LEON exit threshold.

The present disclosure generally relates to systems and methods of using water output from a fuel cell system to aid in heat dissipation and evaporative cooling of radiators.

Systems and methods to utilize water output of fuel cell systems for evaporative cooling of radiators

A recycling loop configuration of an exhaust gas aftertreatment system decreases a level of system-out NOemissions of an engine. An apparatus including the configuration has an exhaust gas recycling system having a closed gas recycling loop system configured to heat gas circulating within the loop, and a blower for circulating gas within the loop. A method for operating the engine includes preheating at least one aftertreatment component of an exhaust gas aftertreatment system of the engine by exposing the component to heated gas circulating in a closed gas recycling loop.

Engine aftertreatment recycling apparatus, and system and method using same

A method comprises determining that an aftertreatment system is in a cold-operation mode; initiating a low engine-out NOx (LEON) mode by controlling a component of a vehicle containing the aftertreatment system to decrease an instantaneous engine out NOx (EONOx) amount and to increase exhaust energy relative to a normal operation mode for an engine of the vehicle; receiving information indicative of an operating status of the vehicle during the LEON mode; disengaging the LEON mode; subsequent to disengaging the LEON mode, initiating a thermal management (TM) mode for the aftertreatment system, wherein the TM mode is initiated by controlling a component of the vehicle to increase fueling to the engine for a power level by reducing engine efficiency and directing excess fuel to the aftertreatment system; receiving information indicative of an operating status of the vehicle during the TM mode; and disengaging the TM mode.

A system and method for self-adjusting engine performance parameters in response to fuel quality variations that includes an exhaust sensor for measuring a level of carbon dioxide present in an exhaust manifold, at least one of a knock sensor and a cylinder pressure transducer for determining a location of peak pressure and a centroid, respectively, a controller in communication with the exhaust sensor and the at least one of the knock sensor and the cylinder pressure transducer, the controller correlating a methane number of the fuel used by the engine to a brake specific carbon dioxide value calculated using the level of carbon dioxide measured by the exhaust sensor and the at least one of the centroid and the location of peak pressure, and an adjusting mechanism, wherein the adjusting mechanism adjusts an engine performance parameter based on the determined methane number.

System and method for self-adjusting engine performance parameters during fuel quality variation

The present disclosure provides an engine fueling system that includes multiple fueling valves such that the fuel transport delay can be reduced. The fueling system may also include an electrically driven compressor to improve engine properties during engine startup. For example, an engine fueling system comprising: a first compressor; an intake air throttle operably coupled to the first compressor and positioned downstream of the first compressor; a primary fuel path in communication with a fuel supply, wherein a first fuel from the fuel supply is injected into the primary fuel path upstream from the compressor; and a secondary fuel path in communication with the fuel supply, wherein a second fuel from the fuel supply is injected into the secondary fuel path downstream from the compressor.

Two point fuel system for gas power generation

A spark-ignited gas engine system comprises a combustion chamber defined by a piston, a head with a spark plug mechanism, and a cylinder having an associated intake valve and an associated exhaust valve, into which a mixture of combustible gas and air is entered via an intake manifold of the engine to drive a crankshaft. The system further comprises at least one turbocharger to compress the mixture. The system further comprises at least one camshaft, driven by the crankshaft via a gear assembly connected to the crankshaft, that comprises at least one cam that actuates the intake valve and the exhaust valve, at least one camphaser, coupled to the crankshaft via the gear assembly, and a controller to adjust a cam angle operation of the intake valve and the exhaust valve by adjusting the camphaser to a desired phase position to meet a target rotational phase of the camshaft.

Cam phasing system architecture

Growing community of inventors

Indianapolis, IN, United States of America

Agneya Turlapati