| 摘要 |
An engine control unit, and method of use, uses a power curve or algorit hm to pro-actively adjust fuel flow rate to an engine, optionally in combinatio n with a reactive power curve or algorithm, thereby to adjust engine power, in anticipation of changes in loads being imposed on the engine, as well as to respond to engin e speed changes. The ECU has a power curve or algorithm stored in memory which responds to certain predetermined operating conditions other than sensed engine speed, by providing a sequence of pro-active change inputs, at predetermined rates of change, in rate of delivery of fuel to the engine combustion chambers, independent of engine speed change, thereby to produce pro-active incrementa l changes in power output of the engine. Such pro-active incremental power changes are effected in anticipation of changes in load demand on the engine , and correspond generally with expected incrementally progressive changes in load demand on the engine. In preferred embodiments, the power curve or algorithm includes a first upwardly sloping line representing small increment increase s in engine power, a second step change increase in engine power, a third downwardly sloping line representing small incremental decreases in engine power, and a fourth relatively greater magnitude step change decrease in engine power. Th e pro-active change input signals can be combined with reactive change input signals to make respective combination change input signals which take into consideration a variety of operating parameters, including engine speed changes.
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