What you will see is the following steps:
- Pre-start 'bump'. This is unique to my setup as I found some times the water pump sticks, bumping it frees it up.
- Throttle moves to 'idle' position
- Engine is started.
- Engine ramps up speed
- Alternator load is applied (Video does not show this well, sorry).
- Stop is requested, load is removed and throttle starts to slow-down.
- About 1/2 way through the cool-down I request a Stop-Now, and engine is immediately stopped.
That is it! Have a couple of issues - there is another phantom power path via the ~START FET protection diode. Yet another reason not to use the Low Drive for the Starter. (And I will need to think about this for the Low-Drive revision on the PCBs...). For now, D17 needs to be removed. (Or make sure the unit at all times has +BAT connected when ever the other side of the ~START relay is connected to +12v.)
Other problems mostly are around the RPM measurements. Of course stability needs field drive, but I have noted a couple of measurements way out of the park. And there IS some level stator output at no Field drive, maybe can take advantage of that??? More to come.
I also noted the throttle changes are a bit coarse These are all configurable via parameters in the include file, once things settle down I might look to change these to a finer steps. And likely shorten the cool-down cycle.
But the use of current draw to decide the motor has started works GREAT!
And overall I would say things worked not so bad for a 1st run. (And not one puff of smoke!)