Engine measurement device

Details Engine measurement device Engine measurement device

2005-05-09

2009-11-03

McCall, Eric S (Department: 2855)

Measuring and testing

Internal combustion engine or related engine system or...

Power output

C073S114250, C073S116050

Reexamination Certificate

active

07610799

ABSTRACT:
An engine measurement device includes a detector for measuring individual pieces of time series data containing at least a speed and output torque of an engine in a transient state while the engine is being run in combustion by control of an engine control unit, a torque operation unit for calculating the engine torque on the basis of the time series data of the engine speed and the output torque, and a model operation unit for modeling the engine torque as functions of the engine speed and a fuel injection time. This model is used to calculate both a fuel torque generated by the combustion run of the engine and a mechanical loss torque or the difference between the engine torque and the fuel torque.

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