Quote:
Originally Posted by chris719
Some of these people would fail Engineering 101 type courses. A requirement defines WHAT something does. Design specifications define HOW it does it.
What makes an automatic transmission automatic is the requirement that it shall be able to shift by itself. How it does that is of no consequence.
Engineers spec a transmission by requirements like:
The transmission shall be able to shift automatically.
The transmission shall be able to complete an upshift in xxx ms.
The transmission shall be able to complete a downshift in xxx ms.
The transmission shall have a manual mode.
The transmission shall have n gears with the following ratios...
etc...
HOW those requirements are met are purely details. I could design and sell BMW a Triple Gnome Transmission - M TGT. It could shift even faster than DCT. It might even have gnome-operated clutches inside, but who cares? It's still an automatic.
If you treat the transmissions as black boxes, it's completely clear to anyone with basic reasoning skills that DCT and automatic transmissions are functionally equivalent in terms of user requirements. The DCT is just a higher performance version.
This isn't DCT bashing, it's just fact. DCT is better than the manual.
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Yeah, but the DCT is an manual that just has an automatic function...