Thermo King Corporation

Michael Dean Turnquist

Michael James Vanous

Erich Albert Lucht

William L Waldschmidt

Gregory R Truckenbrod

Cullen Evan Hall

Peter J Loomis

Gary O McGinley

Gary Mcginley

A system and method for preventing unauthorized modification to engine control software or an engine control system of, for example, a refrigerated transport application is provided. Particularly, the embodiments described herein prevent unauthorized parties from inadvertently or intentionally making changes to the engine control software used for controlling the engine or the engine control system that could, for example, potentially bypass emission strategies implemented in the refrigerated transport application. Accordingly, emission strategies such as, for example, EPA Tier IV not-to-exceed ('NTE') regulations can be maintained.

System and method for preventing unauthorized modification to engine control software or an engine control system

A method of controlling an auxiliary power unit of a vehicle. The auxiliary power unit is in communication with an air conditioning system of the vehicle and includes an engine and an alternator coupled to the engine. The method includes determining a state of a compressor of the air conditioning system, the compressor including an off state and an on state, reducing an alternator load relative to the engine in response to the compressor being varied from the off state to the on state, increasing the alternator load relative to the engine after a predetermined time interval, and simultaneously operating the alternator up to an alternator load capacity and the compressor up to a compressor load capacity.

Control system for auxiliary power unit of a vehicle

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Maple Grove, MN, United States of America

Michael Dean Turnquist