[51Cards]

Kudos for to the author for the work put into this and the intelligence functions are interesting. I do have a couple concerns though.

A. Trying to design down to two knobs makes each knob multi-modal. This removes a lot of muscle memory benefits requiring a glance at a screen, a small screen that is now partially covered by your hand while operating the knob. Haptic feedback might be able to help you know what mode you're in without looking but now you have a lot more to memorize to use it while keeping your eyes on the road which may begin to defeat the simplicity benefits.

B. Haptic feedback... will this work with gloves on? (will you feel it, will it sense your touch)

A lot of manual systems now have 3 knobs, not much more than the 2 presented here, which will always do the same thing each time you reach for them. My concern would be how long it would take the user to be familar with the interface without looking. One quick thought, I would be inclined to think that feedback through a large screen not covered by your fingers might have advantages.

It's a great study on UI consistancy however, esp around how to program the detents, etc.

[crote]

I think the multi-modal stuff can be mostly fixed by dedicated mode selection buttons, which can be blindly pressed to enter a specific mode. The logical option would be to place them around the dial like a pie chart, as that would be trivial to find without looking. Place those buttons underneath the dial instead and you can use the display as a clear mode indicator as well, without the hand obscuring it.

You could also put a copy of the display somewhere in the driver's HUD. It'd still draw some attention, but having it for example temporarily fill up the center of the speed dial (perhaps in some way only when the driver is touching it?) would be a lot less distractive than having to look all the way over on the infotainment panel.

As to B: it's a physical knob, with a motor pushing against your turning force. It'll have zero trouble with gloves.

[51Cards]

Agreed to rotating the knob on the second point... but it looks like a touch screen to change modes? Or is it a physical push button under the knob? I may have been unclear on how the knob functions.