A bench testing apparatus 10, wherein {TAIL ~ said predetermined engine operation parameter simulated data} are engine speed data and {HEAD ~ a throttle valve open angle data} 
A bench testing apparatus 10 , wherein { TAIL ~ said predetermined engine operation parameter simulated data } are engine speed data and { HEAD ~ a throttle valve open angle data }
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD