CURVE OF MAXIMUM ALLOWABLE ENGINE TORQUE FOR CONTROLLING A COMBUSTION ENGINE
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United States of America Patent
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Issued Date -
Nov 1, 2012
app pub date -
Sep 11, 2009
filing date -
Sep 11, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A curve of maximum allowable engine torque as a function of engine rotational speed for controlling a combustion engine is provided, where a combustion engine control unit is arranged to control output torque and engine rotational speed as not to exceed the curve, and where the curve is defined by a torque build up range (n0 to ni), constant power range (n2 to 113) and a torque ramp down range (n3 to n4). The torque ramp down range is defined so that the engine rotational speed at high engine power is reduced, while high engine rotational speeds are allowed at low engine power.
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