what does SMG mean for bmw m3?

Answer 1

Sequential Manual Gearbox. It's a manual transmission with an automatically actuated clutch.

SMG uses an electro-hydraulic clutch paired with a standard manual gearbox (Getrag six speed for the M3, I believe a 7-speed for the M5). Shifts are accomplished using paddles behind the steering wheel. Different shift speeds can be set (S1 to S6), with the fastest speeds being somewhere around 80 milliseconds. The upside is there's no clutch pedal, and shifts are far faster than a human can shift (as fast as 80 milliseconds).

Ferrari first introducted "clutchless manuals" with the F1 gearbox. It is, as the name indicates, a Formula 1 derived gearbox. Maserati and Aston Martin also use the technology, and Audi just developed a similar gearbox with dual clutches called the DSG.

A number of companies have so called manu-matics - automatic transmissions that can be shifted (Tiptronic for Porsche, Steptronic for BMW, etc) - these are NOT the same as SMG, DSG, or the F1 box. Torque converters in automatics cause power loss that manual boxes do not.

Answer 2

Featuring the second-generation Sequential M Gearbox Drivelogic (SMG Drivelogic), the M3 comes with a high-performance drive concept combining the benefits of the impressive transmission technology used in Formula One with all the requirements of everyday motoring.

SMG enables the driver to adjust gearshift characteristics by means of 11 driving programs (six sequential, five automatic) to their personal style of motoring, ranging from reserved but dynamic all the way to ultra-sporting.

Paddle switches on the steering wheel (the driver presses the one on the right to shift up and the one on the left to shift down) reduce the time required for shifting gears to just 80 milliseconds. The shift signal is transmitted in two ways: electronically, by wire; redundantly, simultaneously and in two parallel modes, just like control systems deployed in the aerospace industry.

An electrohydraulic system performs the mechanical clutch engagement and gearshift process. Power is transmitted like on a standard M3 via a self-adjusting clutch (SAC) and BMW's six-speed gearbox, as featured in other M automobiles. Numerous special functions such as the uphill gradient and acceleration assistant or shift lights are also incorporated into the Sequential M Gearbox.

Answer 3

Sequential Manual Gearbox

Answer 4

This Site Might Help You.

RE:
what does SMG mean for bmw m3?

Answer 5

Sequential M Gear Box

Answer 6

In German, it is called Sequentiellen M Getriebe, but it translates in English to Sequential M Gearbox.

Answer 7

yup, the e46 m3 did come with a manual transmission standard, as does the current e92

Answer 8

sequential manual gearbox

Answer 9

Boy, Trackerrrr sure ACTED like he knew, didn't he?

Seriously, all other posts are correct.

Answer 10

Sequential manual gearbox, Duh!