Patent ID: 7610799

Claim:
An engine measurement device for measuring engine performance by bench testing an automobile engine having a load connected to said engine, said engine measurement device comprising: an engine control unit for controlling a fuel injection timing of said engine; a detector for measuring time series data that include at least an engine speed of said engine and an axial torque detected between said engine and a load in a transient state, in a state in which said engine is combustion-driven by the control of said engine control unit; a torque computation unit for computing an engine torque that is an actual drive force of said engine on a basis of the time series data of said engine speed and axial torque; and a model computation unit for modeling said engine torque using a model and engine parameters including said engine speed, and said fuel injection timing; wherein a fuel torque generated by the combustion driving of said engine, and a mechanical loss torque that is a difference between said engine torque and said fuel torque are calculated from said model.