establishing {HEAD ~ a signal PMAX}, representing a predetermined maximum output power produced by {TAIL ~ said first motor generator set}, 
establishing { HEAD ~ a signal PMAX } , representing a predetermined maximum output power produced by { TAIL ~ said first motor generator set } ,
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH