The present invention relates to an art of {TAIL ~ control} of {HEAD ~ an engine} having a variable series supercharging system 
The present invention relates to an art of { TAIL ~ control } of { HEAD ~ an engine } having a variable series supercharging system
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH