Detroit Diesel Corporation

Frank S Groer

Tomislav Ivo Golub

Min Sun

Jeffery Scott Hawkins

Mark Allen Zurawski

Heather A Staley

Harald Wedler

Donald E Keski-Hynnila

Reinhard Pfundt

Dennis J Grace

Kevin Sisken

Matthew Thomas Baird

Amr Radwan

Zornitza Pavlinova Pavlova-MacKinnon

Jason Thomas Barton

Peter Zagone

Zhiping Han

Martin Fritz

Bernd Martin

Jimmie L Priest, Jr

A method to synchronize Fault Code Memory between at least a first module and a second module in an engine controller unit; each said module in electronic communication with each other and having volatile and non volatile memory; said modules in electronic communication; when compatibility of versions of static fault codes between the modules is established, the first module downloads and saves the static fault code table resident on the second module in nonvolatile memory for access by a diagnostic tool.

Method for static fault code synchronization in an internal combustion engine

The present invention is directed to a method to operate an internal combustion engine with electronic control wherein fault codes indicative of emissions levels may be stored in permanent memory.

Method of operation of internal combustion engine with permanent fault code implementation

A method to operate an electronic controlled diesel engine to provide enhanced fault code administration responsive to the variable driving cycle.

Fault code memory administrator with a driving cycle state machine concept

A method for verifying the functionality of the components for a diesel particulate filter system based upon engine speed, engine torque, inlet and outlet exhaust pressure at the diesel particulate filter. Various sensor signals are compared to calibratable values in memory for a determination whether the diesel particulate filter system is functional.

Method for verifying the functionality of the components of a diesel particulate filter system

In one aspect, the present invention is directed to a method for operating an electronically controlled internal combustion engine in a vehicle to perform at least one rationality check on at least one sensor to detect impending sensor failure and verify component functionality. The engine is equipped with an engine control system (ECS) having a memory and in electronic communication with various sensors. The sensors transmit data signals to the ECS indicative of associated engine and vehicle component functionality. The method comprises determining a measured operating condition of a first component from sensor data signals indicative of first component functionality, determining a measured operating condition of a second component from sensor data signals indicative of second component functionality, comparing the measured condition of the first component to the measured operating condition of the second component to determine whether sensor readings from the first component are indicative of a component operating within a normal range but indicative of impending sensor or component failure, logging an indication of an impending sensor or component failure as a fault in MPU memory if it occurs for a predetermined period of time and for more than a predetermined number of times and drive cycles, and activating a warning alert to an operator and initiating remedial actions responsive to the indication of impending component or sensor failure. The data logged includes time of fault, type of fault, number of occurrences of the fault, number of drive cycles where the fault occurred and distance traveled with the fault logged.

Method of verifying component functionality on EGR and air systems

A method to operate an internal combustion engine by derating the engine in response to sensed emissions levels as compared to engine speed and engine torque and logging a fault.

Calibratable fault reactions in heavy-duty diesel engines

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West Bloomfield, MI, United States of America

Frank S Groer