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In Reply to: i'll give it a try posted by KC on October 03, 1999 at 15:56:15:
: : I understand how SMG works but I want to know what the specific differences are from the Steptronic. The concept is similar but I think they are two totally different technologies.
: : : you can better understand. If the SMG is the same or similar to a sequential gear box, you use the clutch only for getting into 1st gear. The paddle shifter is similar to how the gear shift operates on a motorcycle. I simple pull puts it in the next gear up or down. The revs are matched by the engine management system to smoothly go into the next gear (up or down) smoothly. Optional on a few cars including the Ferrari 360 Modena. A fantastic device. Quicker than either the traditional manual gearbox or the psuedo Steptronic, Tiptronic, etc., etc. Just very, very expensive.
:
: The steptronic is an automatic transmission. It has a torque converter (thus loss of power), it just wont shift by itself in manual mode. You tell it when to shift and it does. It has been improved so there isn't much delay like there is if you take say an E36 325iA and put it in "M" mode and shift yourself. You have about a 400 rpm delay there.
: The SMG has NO torque converter. The tranny has the same type flywheel and clutch assembly as any stick. Only difference is that there is a computer controlled hydraulic mechanism which actuates the clutch. Also the computer can control the throttle in order to "blip" it and match revs when it shifts. This way it accomplishes a perfect double clutch, heel-n-toe shift everytime. (i don't know if it actually does it as a double clutch but it shifts as well as if a person was doing it double clutch)
: Hope it helps
: KC
Did the "M" mode work the same way, meaning have the +/- shifting for up/down?
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