A speed control for a gasoline engine is shown below. Because of the restriction at the carburetor intake and the capacitance of the reduction manifold, the lag z occurs and is equal to 0.8 second. The engine time constant z is equal to 3 seconds. The speed measurement time constant is = 0.4 second. (a) Determine the necessary gain K if the steady-state speed error is required to be less that 5% of the speed reference setting. Throttle Terque Speed RG)

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A speed control for a gasoline engine is shown below. Because of the
restriction at the carburetor intake and the capacitance of the reduction manifold, the lag
E occurs and is equal to 0.8 second. The engine time constant te is equal to 3 seconds.
The speed measurement time constant is Tm = 0.4 second.
(a) Determine the necessary gain K if the steady-state speed error is required to be
less that 5% of the speed reference setting.
Throttle
Terque
Speed
R(G)
1, +1
s+1
Transcribed Image Text:A speed control for a gasoline engine is shown below. Because of the restriction at the carburetor intake and the capacitance of the reduction manifold, the lag E occurs and is equal to 0.8 second. The engine time constant te is equal to 3 seconds. The speed measurement time constant is Tm = 0.4 second. (a) Determine the necessary gain K if the steady-state speed error is required to be less that 5% of the speed reference setting. Throttle Terque Speed R(G) 1, +1 s+1
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