Consequently, time when the closing timing of the intake valve 8 is in {TAIL ~ the predetermined range T1} including {HEAD ~ the bottom dead center} at a transition period of switching control is reduced 
Consequently , time when the closing timing of the intake valve 8 is in { TAIL ~ the predetermined range T1 } including { HEAD ~ the bottom dead center } at a transition period of switching control is reduced
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH