Donaldson Comapny, Inc.

Thermo King Corporation

Allan T Hovda

Eivind Stenersen

Wenzhong Zhang

John R Hiemstra

Josh Kundert

Gary Dale Reeves

Wayne M Wagner

Todd R Taubert

Derek Hiemstra

Scott Peters

Erich Albert Lucht

Greg R Truckenbrod

John J Shaw

Jill N Irlbeck

John Wiese

This disclosure relates to a method for controlling a system for regenerating a diesel particulate filter. The method includes monitoring an engine run time that has lapsed since a previous regeneration event. The method also includes monitoring backpressure behind the diesel particulate filter. The method further includes triggering a regeneration flag if the engine run time that lapsed since the previous regeneration event reaches a predetermined time limit and the backpressure exceeds a minimum value.

System and method for regenerating an auxiliary power unit exhaust filter

An exhaust system for use with a diesel engine includes a diesel particulate filter configured to capture particulate matter exhausted from the diesel engine, a first sensor operable to detect a particulate matter accumulation level within the diesel particulate filter, and a second sensor operable to detect an ambient temperature of an environment surrounding the diesel particulate filter. The exhaust system also includes a control module electrically coupled to the first sensor, the second sensor, and the diesel particulate filter. The control module is operable to adjust a first regeneration threshold based on the detected ambient temperature. The control module is also operable to initiate regeneration of the diesel particulate filter when the detected particulate matter accumulation level reaches the first regeneration threshold.

System and method to regenerate a diesel particulate filter

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Savage, MN, United States of America

Allan T Hovda