Cummins Ip, Inc.

Siemens Industry, Inc.

Cummins Filtration Ip, Inc.

Cummins Emission Solutions Inc.

Xiao Lin

Daniel D Wilhelm

Jinqian Gong

Archana Chandrasekaran

Javier Franco

Baohua Qi

Carlos Alcides Lana

Douglas Mitchell

Thomas A Grana

David Samuel Everard

Xi Wei

Lisa Farrell

Clyde W Xi

Jeff Runde

Kwadwo O Owusu

April Evans

Robert Kern

Douglas A Mitchell

Douglas Alan Mitchell

Daniel W Wilhelm

The present disclosure relates to a controller apparatus for regenerating a particulate matter sensor. The controller apparatus includes a sensing module configured to detect a soot loading on a particulate matter sensor and generate a regeneration request indicating a desired regeneration temperature and a heating module configured to receive the regeneration request and send a heating command signal to a heating element based on the regeneration request. The controller apparatus also includes an electrical resistance module configured to detect an electrical resistance in the heating element, a calibration module configured to determine an actual temperature of the heating element based on a resistance-to-temperature model, and a temperature feedback module configured to modify the heating command signal according to the difference between the desired regeneration temperature and the actual temperature.

Temperature compensation for particulate matter sensor regeneration

Systems and methods are disclosed for diagnosing gain rationality of an NOx sensor that is downstream of a selective catalytic reduction (SCR) catalyst. Sensor diagnostics are performed while maintaining reductant dosing to the SCR catalyst.

[object Object]

The present disclosure relates to a controller apparatus for regenerating a particulate matter sensor. The controller apparatus includes a sensing module configured to detect a soot loading on a particulate matter sensor and generate a regeneration request indicating a desired regeneration temperature and a heating module configured to receive the regeneration request and send a heating command signal to a heating element based on the regeneration request. The controller apparatus further includes an electrical resistance module configured to detect an electrical resistance in the heating element and determine an actual temperature of the heating element and a temperature feedback module configured to modify the heating command signal according to the difference between the desired regeneration temperature and the actual temperature. The present disclosure also includes a related method and system.

Particulate matter sensor regeneration

A method includes raising a temperature of an SCR catalyst for a predetermined time period while dosing urea. The method further includes maintaining the temperature of the SCR catalyst without dosing urea for a second predetermined time period. The method further includes filtering out at least low frequency data from a first NOsensor upstream of the SCR catalyst and from a second NOsensor downstream of the SCR catalyst, and comparing the filtered data from the first NOsensor and the second NOsensor without dosing urea over a third predetermined time period. The method further includes providing a NOsensor condition index for at least one of the first NOsensor and the second NOsensor in response to the comparing.

According to one embodiment, described herein is an apparatus for mitigating on-board diagnostic (OBD) faults generated by an OBD system of an internal combustion engine (ICE) system having a selective catalytic reduction system with a diesel exhaust fluid (DEF) decomposition tube. The apparatus includes a fault mitigation module that is configured to monitor at least one OBD signal of the OBD system and issue a request for regenerating the DEF decomposition tube when a value of the at least one OBD signal reaches a predetermined regeneration threshold corresponding with the at least one OBD signal. The regeneration threshold is reachable prior to an OBD fault threshold corresponding with the at least one OBD signal. The apparatus also includes a regeneration module that is configured to regenerate the DEF decomposition tube according to the issued request.

Apparatus, system, and method for mitigating diesel exhaust fluid deposits and associated conditions

An apparatus for determining a deterioration of a NOsensor response rate in an internal combustion engine system includes an engine control module configured to stop fueling to an internal combustion engine during motoring of the internal combustion engine. The apparatus also includes a signal monitoring module configured to monitor a NOsensor signal after the engine control module stops fueling to the internal combustion engine during motoring of the engine and store NOsensor signal data corresponding to the monitored NOsensor signal. Additionally, the apparatus includes a time constant module that is configured to determine a time constant of the NOsensor response after the engine control module stops fueling. The apparatus further includes a response rate deterioration module configured to determine a response rate deterioration value of the NOsensor based at least partially on the determined time constant.

Apparatus, system, and method for estimating deterioration of a NOx sensor response rate

A reconfigurable harness board system is provided for assembling a wire harness for an electrical panel and comprises a plurality of sub-harness modules. Each sub-harness module defines a swappable template for a wire harness for a respective electrical component for the electrical panel. Select ones of the sub-harness modules are mounted to a frame according to a first layout of electrical components for the electrical panel to create a reconfigurable harness board system in which each sub-harness module is detachable from the frame to be swapped with a different sub-harness module in order to reconfigure the harness board system according to a second layout of electrical components.

System and method for reconfiguring a harness board

A real time, average pressure difference method for monitoring doser efficiency is described that determines the difference between the average pressure when the doser is not injecting and the average pressure when the doser is injecting at a predetermined commanded injection rate. The average pressure difference method results in improved doser efficiency monitoring. The method can be implemented in a number of areas. For example, in a diesel truck application, the doser efficiency can be monitored accurately in real time.

Real time doser efficiency monitoring

A real time doser efficiency monitoring method is described that measures the average instant pressure difference within one duty cycle of the doser injector. The disclosed method results in improved doser efficiency monitoring. The disclosed method can be implemented in a number of areas. For example, in a diesel truck application, the doser efficiency can be monitored accurately, for example within 5% error, all the time, no matter whether the truck is in a transient or steady state.

Real-time doser efficiency monitoring

A wire harness projection guidance system comprises a support stand for supporting a wire harness board used to construct a wire harness. A projector is mounted to the support stand for projecting an image onto a wire harness board supported on the support stand. A memory stores data representing wire route for each of a plurality of individual wires in a wire harness. A programmed processing system is operatively coupled to the memory and the projector for generating a series of images to be projected by the projector. Each image in the series represents one of the stored wire routes for an associated individual wire.

Growing community of inventors

Indianapolis, IN, United States of America

Xiao Lin