Basically you can set an AFR target at each rpm range. You can also set a LOP AFR target.
Closed loop is boxed in by MAP and RPM high and low limits as well. Go outside any one of those and it drops back into open loop (runs off programmed values as before).
As I mentioned in in another thread, this is mainly aimed for those using unleaded avgas or mogas. We have an NTK sensor on Les' RV-10 now, will see what the life is like on 100LL eventually. Maybe it's workable. The NTK is rumoured to tolerate lead better than the Bosch sensor. He has his sensor mounted on an extended boss which may help keep lead off of the sensor.
As a point of interest on the test flight today, peak EGT occurred at about 15.1 AFR on the wideband, right where expected on 100LL.
Closed loop is boxed in by MAP and RPM high and low limits as well. Go outside any one of those and it drops back into open loop (runs off programmed values as before).
As I mentioned in in another thread, this is mainly aimed for those using unleaded avgas or mogas. We have an NTK sensor on Les' RV-10 now, will see what the life is like on 100LL eventually. Maybe it's workable. The NTK is rumoured to tolerate lead better than the Bosch sensor. He has his sensor mounted on an extended boss which may help keep lead off of the sensor.
As a point of interest on the test flight today, peak EGT occurred at about 15.1 AFR on the wideband, right where expected on 100LL.
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