I wonder if there's any reason to use an automatic at all? the turbine throttle controller ECU would be a bit more complicated, but i could make it manage the throttle demand to mask out when the vehicle is shifting so the turbines keep pushing during shifts. a well placed turbine kill switch would be necessary, but trivial to implement.
*edit* actually, not complicated at all, if the throttle drops above a certain rate (deg/s) down to idle just hold the peak position from the last second for up to 1.5seconds. resume normal operation when throttle is re-applied and cut throttle if brake is applied.
Nope no reason at all, now that the turbines have their own transmission. And the throttle hold is very realizable, my mom's astra did the exact thing you mention on upshifts, holding the engine RPM for a second or so when you let off the throttle. I'm guessing maybe a switch on the clutch to tell it to do so? It was a slightly unnerving feeling having the engine still revving mid-shift.
ha! even simpler turbine throttle control strategy:
a button on the shifter. if the button is held and the brake isn't applied, tubines to 100%. otherwise turbine torque output follows the foot pedal.
This button must be the biggest red button you can squeeze on the shifter, and simply labelled, "POWAH!"
But what about downshifting? This is where I see you running into problems with implementing the manual:
-Say when you go to move the shifter for a downshift, do you just have to make sure not to press the button in the process? I'm guessing the brake clause is to handle just this, but what about schmucks like myself who are inept at heel-toe braking? It would really suck to get jolted forward in the midst of an aggressive braking/downshifting situation because you accidentally ran the turbines up to 100%.
-Revmatching is the other issue. Regardless of whether you can heel-toe or not, or whether you just keep off the shifter button, when you go to revmatch the diesel for the next gear down you'll be inadvertently increasing power to the turbines, again causing you to accelerate when you'd really like to be slowing down.
Just some thoughts, I have a feeling these issues can be overcome by some clever means, but the controls will almost certainly need to get quite a bit more complex.
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