Cummins Inc.

Tula Technology, Inc.

Achates Power, Inc.

Cummins Ip, Inc.

Govindarajan Kothandaraman

Carlos Alcides Lana

Vivek Anand Sujan

David J Stroh

Samuel C Geckler

Marten H Dane

Karthik Kappaganthu

Kenneth M Follen

Anthony Kyle Perfetto

Michael J Cunningham

Timothy R Frazier

Aniket Gupta

Karim Abdoul Azizou

J Steven Kolhouse

Jennifer Kay Light-Holets

Michael Haas

Phani Kiran Vajapeyazula

Yongjie Zhu

Hoseinali Borhan

Kartavya Neema

Shashank Tamaskar

Jingxuan Liu

Aleksey Yezerets

Andrew W Osburn

Abdul R Ofoli

David E Koeberlein

Ashwin Vyas

Dwight A Doig

Vikas Narang

Thomas M Yonushonis

Nassim Khaled

David M Barnes

Mert Geveci

Edmund P Hodzen

Robert J Thomas

Archit N Koti

Pinak Jayant Tulpule

Lyle E Kocher

Aaron William Beinborn

Scott Robert Bardakjy

Yu Liu

Zachary Schwab

Craig M Calmer

Richard S Fox

Joseph P Chandraraj

Rohit Zope

Bibin N Patel

Vivek J Sujan

Systems, devices, and methods are disclosed that during cylinder deactivation, including skipfire, at low engines speeds and low engine loads maintain adequate oil pressure of valvetrain components or hardware required for CDA and/or skipfire operation.

Maintaining oil pressure during cylinder deactivation operation

Systems and apparatuses include one or more processing circuits including one or more memory devices coupled to one or more processors. The one or more memory devices are configured to store instructions thereon that, when executed by the one or more processors, cause the one or more processors to: receive a parameter regarding operation of a first vehicle of a first platoon; compare the parameter to a first predetermined threshold; responsive to determining that the parameter satisfies the first predetermined threshold, determine an exit parameter for the first vehicle; and cause the first vehicle to exit the first platoon based on the exit parameter.

Platoon system for vehicles

A method includes acquiring nitrogen oxide (NOx) data indicative of a first amount of NOx in an exhaust flow exiting an engine and a second amount of NOx in the exhaust flow exiting an exhaust aftertreatment system coupled to the engine where the exhaust aftertreatment system including a selective catalytic reduction (SCR) system including a SCR catalyst; determining a NOx conversion efficiency fault is present within the exhaust aftertreatment system based on the first amount of NOx and the second amount of NOx; monitoring an actual amount of NOx in the exhaust flow downstream of the SCR catalyst; determining an expected amount of NOx downstream of the SCR catalyst; and determining the SCR catalyst is responsible for the NOx conversion efficiency fault in response to the actual amount of NOx differing from the expected amount of NOx by more than a threshold amount.

Diagnostic methods for a high efficiency exhaust aftertreatment system

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: determine at least one reason for a deserter to exit a first platoon; determine a deserter position within the first platoon; communicate the deserter exit to the first platoon after determination of the at least one reason for the deserter to exit the first platoon based at least in part on the deserter position; adapt a behavior of the first platoon to allow the deserter to exit the first platoon; and reconfigure the remaining vehicles from the first platoon into a second platoon.

Systems, apparatus, and methods are disclosed that include a divided exhaust engine with at least one primary EGR cylinder and a plurality of non-primary EGR cylinders. The systems, apparatus and methods control the amount of recirculated exhaust gas in a charge flow in response to EGR fraction deviation conditions.

Systems and methods for controlling EGR flow during transient conditions

A method for controlling operation of an opposed piston engine is provided, comprising: determining a direction of rotation of the engine; comparing the determined direction of rotation to a correct direction of rotation of the engine; and responding to the determined direction of rotation being different from the correct direction of rotation by taking corrective action.

System and method for controlling opposed piston engine operation for rotation direction

One embodiment is a system comprising an engine including a dedicated EGR cylinder configured to provide EGR to the engine via an EGR loop, a non-dedicated cylinder, a plurality of injectors, an ignition system including a plurality of spark plugs, an intake throttle, and an electronic control system. The electronic control system is configured to control combustion during transient operation of the engine by determining one or more combustion control parameters compensating for variation of one or more of inert matter, unburned air and unburned fuel in EGR output by the dedicated EGR cylinder during transient operation of the engine, and an effect of the EGR loop on inert matter, unburned air and unburned fuel provided to the plurality of cylinders, and controlling operation of at least one of the throttle, the ignition system and the plurality of injectors in response to at least one of the one or more combustion control parameters.

Techniques for transient estimation and compensation of control parameters for dedicated EGR engines

Systems and apparatuses include a controller including at least one processor coupled to a memory storing instructions that, when executed by the at least one processor, causes the controller to: determine a set of emission regulations based on a location of a vehicle; determine a target temperature of a catalyst of an aftertreatment system of the vehicle in response to the determined set of emission regulations; compare a current temperature of the catalyst to the determined target temperature; and in response to the current temperature of the catalyst being below the determined target temperature, provide a thermal management command to increase the catalyst temperature toward the determined target temperature.

Systems and methods for managing catalyst temperature based on location

An opposed-piston engine includes an electronic sensor located in a charge air channel, at position between an outlet of a charge air cooler and an air intake component that distributes charge air to cylinder intake ports of the engine. The electronic sensor is disposed to measure a rate of mass airflow between the outlet of the charge air cooler and the intake component and generate electronic signals indicative of the rate of mass airflow from the charge air cooler. A control mechanization of the opposed-piston engine is electrically connected to the electronic sensor for controlling air handling devices, fuel provisioning devices, and/or EGR devices in response to the electronic signals.

Control of an opposed-piston engine with a mass airflow sensor located after a charge air cooler

An internal combustion engine is controlled in response to a location of the engine and an operational status of the engine to stop or reduce carbon monoxide emissions.

Automatic engine control for carbon monoxide conditions

Systems, apparatus, and methods are disclosed that include a divided exhaust engine with at least one primary exhaust gas recirculation (EGR) cylinder and a plurality of non-primary EGR cylinders. The systems, apparatus and methods control the EGR fraction by deactivation of one or more of the cylinders.

Systems and methods for cylinder deactivation operation in response to route conditions

An engine system includes an air handling control unit which controls a plurality of air handling actuators responsible for maintaining flow of air and exhaust gas within the engine system. The engine system has a plurality of sensors whose sensor signals at least partially define a current state of the engine system. The air handling control unit includes a controller which controls the air handling actuators of the engine system as well as a processing unit coupled to the sensors and the controller. The processing unit includes an agent which learns a policy function that is trained to process the current state, determines a control signal to send to the controller by using the policy function after receiving the current state as an input, and outputs the control signal to the controller. Then, the agent receives a next state and a reward value from the processing unit and updates the policy function using a policy evaluation algorithm and a policy improvement algorithm based on the received reward value. Subsequently, the controller controls the air handling actuators in response to receiving the control signal. In one aspect of the embodiment, the control signal is a command signal for the air handling actuators.

Deep reinforcement learning for air handling control

Methods, systems and apparatuses for inter-vehicle communication, fusion of sensor information, and information sharing resulting from inter-vehicle communication are disclosed along with control of one or more vehicles in response to information from one or more other vehicles.

Sensor fusion and information sharing using inter-vehicle communication

Systems and apparatuses include a controller including a circuit structured to communicate with a platoon of vehicles, determine a platoon rank order, determine final separation distances between vehicles, affect operation of each vehicle to achieve the platoon rank order and final separation distances, monitor the platoon of vehicles to determine if a deserter is leaving the platoon of vehicles or if a critical change has occurred, determine an updated platoon rank order, and determine an updated final separation distances between vehicles.

Growing community of inventors

Columbus, IN, United States of America

Govindarajan Kothandaraman