Quote:
Originally Posted by cRiPpLe_rOoStEr
It might depend on terrain conditions and driver's behavior, just like any other automatic transmission with fuzzy-logic electronic controls.
It might be just like downshifting in a manual or in an automatic with sequential mode. Depending on the difference between the low ratio and the regular, you might experience the engine increasing the RPM in order to keep the speed, or it may slow down with a less noticeable impact on RPM.
Then it might be more likely to retain lower ratios for longer, and become more rev-happy.
|
Surely the shifting logic would depend on terrain conditions and driver behavior. However, with the throttle wide open, maximum acceleration is clearly desired above all else, therefore the ECU should adjust gearing to hold the engine's RPM at the power peak, 6300 RPM in the case of the vehicle in the video I posted. This means not upshifting until 6300 RPM or close to it is reached regardless of the mode the transmission is in.
I can't imagine that the engineers who designed these transmissions didn't know that, I think they designed it this way so it feels more like a traditional auto instead of just holding one specific RPM. Sort of like the stupid "simulated shifting" they do with CVTs these days where they shift it in steps, which defeats the entire purpose of having a CVT to begin with.
I asked the guy who made that video what happens if he floors it from a stop in L but he said he never tried it and he sold the car since making the video so he can't retest it.