Detroit Diesel Corporation

Jason Thomas Barton

Mark Allen Zurawski

Matthew Thomas Baird

Min Sun

Jeffery Scott Hawkins

Justin Adam Shetney

Bryant Pham

Frank S Groer

Zhiping Han

Martin Fritz

Harald Wedler

Heather A Staley

Donald E Keski-Hynnila

Reinhard Pfundt

Dennis J Grace

Stephen E Kramer

Michael Kennedy Rochon

Kevin K Luther

Marie A Racette

Jimmie L Priest, Jr

Daniel W Potter

James Erik Plastow

Andrew M Mitchell

Frank-Michael Benz

A method to operate an electronically controlled internal combustion engine having an electronic central unit with memory a turbocharger and exhaust gas recirculation valve to determine performance characteristics of said variable geometric turbocharger.

Method for operating an engine to adjust turbocharger performance characteristics

A method for cold start white smoke protection of a hydrocarbon after treatment device, and method of engine operation to effect the same. The method comprises a) determining the temperature of the hydrocarbon after-treatment device during cold start conditions; b) determining hydrocarbon emissions in the hydrocarbon after-treatment device; and c) modifying engine operating conditions to raise the hydrocarbon after-treatment temperature at a pre-determined rate to a temperature sufficient to permit controlled oxidation of the hydrocarbons in the hydrocarbon after treatment device.

Cold start white smoke aftertreatment protection

A method to detect drive cycles of a vehicle and modify engine operation according to the detected drive cycles to effect regeneration of exhaust components, particularly the Diesel Particulate Filter.

Method to operate vehicle with internal combustion engine and exhaust aftertreatment system according to detected drive cycles

The disclosure is directed to a method to determine oil consumption in an internal combustion engine that does not require extended operation of the engine in the files and is adaptable to be useful at production facilities for testing of sample engines from the line without installation of the engine into a vehicle and operating the vehicle in order to determine oil consumption of the engine during operating conditions.

Method of engine oil consumption

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 for diagnosing a turbocharger () includes disconnecting the compressor outlet conduit () so that the engine () is naturally aspirated and using the engine to drive the turbine () of the turbocharger. The compressor outlet conduit () has a restriction () to create a backpressure which is measured along with the inlet pressure, barometric pressure and ambient temperature. The flow rate is determined and compared to acceptable parameters from a map data provided by a turbocharger manufacturer to diagnose if the turbocharger is operating within the acceptable parameters.

Method of diagnosing turbochargers for internal combustion engines

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Canton, MI, United States of America

Jason Thomas Barton