determining a limit value as a function of the error value and of the engine acceleration value in a manner that limits {HEAD ~ the engine} exhaust {TAIL ~ temperature} to the maximum value of engine exhaust temperature, and 
exhaust
determining a limit value as a function of the error value and of the engine acceleration value in a manner that limits { HEAD ~ the engine } exhaust { TAIL ~ temperature } to the maximum value of engine exhaust temperature , and
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH