초록 ▼

A diagnostic technique for testing a power plant system of a locomotive, desirably during routine scheduled maintenance, involves operating the power plant system in a thermally steady state. This is accomplished by operating an engine of the locomotive at a predetermined throttle position, operatin

A diagnostic technique for testing a power plant system of a locomotive, desirably during routine scheduled maintenance, involves operating the power plant system in a thermally steady state. This is accomplished by operating an engine of the locomotive at a predetermined throttle position, operating radiator fans of a radiator operably connected to the engine at a predetermined speed, operating an alternator operably connected to the engine to apply a substantially constant load to the engine, and obtaining at least one measurement of the power plant system. The technique is readily implemented by a computing environment such as the locomotive's elaborate computer system.

대표청구항 ▼

[ What is claimed is:] [1.]1. An apparatus for testing a power plant system of a locomotive, said apparatus comprising:a controller adapted to maintain the power plant system at a thermally steady state; andsaid controller adapted to obtain at least one measurement of the power plant system; wherein

[ What is claimed is:] [1.]1. An apparatus for testing a power plant system of a locomotive, said apparatus comprising:a controller adapted to maintain the power plant system at a thermally steady state; andsaid controller adapted to obtain at least one measurement of the power plant system; wherein said controller is adapted to:operate a throttle operably connected to an engine at a predetermined throttle position;operate a radiator fan of a radiator operably connected to the engine at a predetermined radiator fan speed; andoperate an alternator operably connected to the engine to apply a substantially constant load on the engine.