Woodward 2301E, Инструкция по установке и эксплуатации, Страница: 105 / 182

Manual 26641 2301E Digital Control
Woodward 95
20 PID DYNAMICS IN USE (monitor)
This value will indicate which set of dynamics are in use by the controller. The
choices that are shown here are:

PID USING DYNAMICS 1

PID USING DYNAMICS 2

PID USING 5-SLOPE - DYNAMICS 1

PID USING 5-SLOPE - DYNAMICS 2
Gas Engine Setup
The butterfly valve or throttle body position of a gas engine is not linear in
comparison to engine power output. In naturally-aspirated (non-turbocharged)
engines, the position of the valve in comparison to engine output appears on a
chart similar to Figure 4-6.
Turbocharged engines distort this curve, particularly as turbo pressure builds to
the point of operating the waste gate. A turbocharged gas engine will likely have
a butterfly position chart similar to Figure 4-7.
Figure 4-6. Non-linear Valve Power Curve
Figure 4-7. Non-linear Valve Power Curve for Turbocharged Engine