What is the difference between an automatic transmission (AT) and an automated manual transmission (AMT)?
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1 Answer
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In answering this question I'm assuming you already know the difference between an Automatic Transmission (AT) and a Manual Transmission (MT).
Conventional Automatic Transmission (AT)
- Minimal to no power interruption
- Automatic moving-off
- Various gear ratios
- Efficiency: 90-95%
Automated Manual Transmission (AMT)
Functionality is the same as a Z-speed manual transmission in constant-mesh or synchromesh but the process of shifting gears and moving off are automated.
- Power interruption like a manual transmission (MT)
- Automatic moving-off
- Efficiency: 92-97% (pretty much the same as a MT)
- Reputation for poor shift quality and reliability
There are more - I wasn't sure if you were looking for functional differences or characteristics. See the reference I've provided for more info - it is a fantastic textbook.
Reference:
Automotive Transmissions: Fundamentals, Selection, Design and Application (Naunheimer et al.)
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$\begingroup$ I still don't understand, but I'm not very well versed in the terminology of transmissions. ; ) I'll leave it up to the original questioner to determine if their question is answered. $\endgroup$– hazzey ♦Nov 7, 2015 at 14:25
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$\begingroup$ @hazzey It is a pretty broad question - not sure if the OP is looking for a detailed answer on how their functionality differs or not. $\endgroup$ Nov 7, 2015 at 20:59
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