Auto Manual Gearbox?
03-30-2004, 10:48 AM
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Auto Manual Gearbox?
Is MB currently exploring the possibility of using a auto manual gearbox (like SMG on BMW or DSG on Audi) in its future cars? Anybody has heard any rumor?
03-30-2004, 11:58 AM
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'05 A4 1.8TQM6
MB has touch-shift, which is kind of like a SMG idea. On the new AMG's, there's a setting where it's shifted using the steering wheel mounted buttons to shift the gears yourself.
"The Sequential Manual Gearbox enables sporty, rapid gear changes through all six gears via the steering wheel paddles or selector lever, without the use of a clutch. Select Dynamic Driving Control (Sport button) for faster engine response and even more spontaneous driving enjoyment."
Touch-shift, your changing gears without a clutch as well...
found this article, don't know if it helps, but kind of explains it:
"Sequentronic versus 5-speed automatic transmission with Touchshift
The essential difference between Sequentronic and the 5-speed automatic transmission with Touchshift (Tipfunction in the UK) lays in the shift pauses that Sequentronic requires for every gear change (even in Autoshift mode), and in the noticeable interruption of tractive power associated with these. With a fully automatic transmission, this is compensated for by the use of the torque converter - the gear changes are almost imperceptible to the driver and passengers. In addition, the hill holder function, the choice between the Standard, "S", and Winter, "W", modes and the intelligent control electronics are further components which are designed to relieve the burden on the driver. Drivers who appreciate ease of use will therefore prefer the fully automatic transmission while active drivers will wee the Sequentronic as the ideal choice. "
"The Sequential Manual Gearbox enables sporty, rapid gear changes through all six gears via the steering wheel paddles or selector lever, without the use of a clutch. Select Dynamic Driving Control (Sport button) for faster engine response and even more spontaneous driving enjoyment."
Touch-shift, your changing gears without a clutch as well...
found this article, don't know if it helps, but kind of explains it:
"Sequentronic versus 5-speed automatic transmission with Touchshift
The essential difference between Sequentronic and the 5-speed automatic transmission with Touchshift (Tipfunction in the UK) lays in the shift pauses that Sequentronic requires for every gear change (even in Autoshift mode), and in the noticeable interruption of tractive power associated with these. With a fully automatic transmission, this is compensated for by the use of the torque converter - the gear changes are almost imperceptible to the driver and passengers. In addition, the hill holder function, the choice between the Standard, "S", and Winter, "W", modes and the intelligent control electronics are further components which are designed to relieve the burden on the driver. Drivers who appreciate ease of use will therefore prefer the fully automatic transmission while active drivers will wee the Sequentronic as the ideal choice. "
03-30-2004, 07:59 PM
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2005 smart cabrio; 2008 Mercedes-Benz B 200
sequential manual
No AMG uses a sequential manual - they're all automatics, notwithstanding the recalibration they've done to them. Automatic = flex plate, torque converter, clutch discs bathed in ATF, hydraulic circuits etc.
Mercedes-Benz Sequentronic is a true sequential manual gearbox = regular flywheel, dry clutch disc, release bearing, mechanical gearbox not incorporating internal clutches, servos to select gear/actuate clutch.
However, Sequentronic is not sold in N. America, and it's nowhere near as good as the BMW SMG II system. By good, I mean fast/smooth.
The sequential manual that Mercedes-Benz developed for the smart car is perhaps better developed in the latest smarts - it shifts reasonably well, bearing in mind that this is not a high-performance vehicle.
Mercedes-Benz Sequentronic is a true sequential manual gearbox = regular flywheel, dry clutch disc, release bearing, mechanical gearbox not incorporating internal clutches, servos to select gear/actuate clutch.
However, Sequentronic is not sold in N. America, and it's nowhere near as good as the BMW SMG II system. By good, I mean fast/smooth.
The sequential manual that Mercedes-Benz developed for the smart car is perhaps better developed in the latest smarts - it shifts reasonably well, bearing in mind that this is not a high-performance vehicle.
