Manumatic
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Manumatic is a portmanteau word, combining the words manual and automatic, that applies to a new class of automotive transmissions. Chrysler Corporation made some luxury cars with a manumatic transmission where the transmission is an automatic with some elements of a manual (e.g. a gear can be manually selected without pressing a clutch). This type of transmission was introduced in the beginning of the 21st century. There is no other use for this word known so far. Different car manufacturers have been using a variety of labels for their manumatic transmissions, such as Tiptronic, Touchshift, Sporttronic, Sensodrive, Allshift, Speedshift, Multitronic (MMT) and others.
Manumatic also describes an electro-hydraulic manual transmission that is disguised to behave like an automatic transmission, with electronics in the shift system depressing the clutch when necessary. Mercedes-Benz has a version called Sequentronic and BMW has SSG (Sports Sequential Gearbox) and SMG (as used in the BMW M3). Most implementations of this manual masquerading as an automatic have the side effect that the car is difficult to reverse, and jerky when changing gear. These are also referred to as clutchless manuals.
[edit] See also
- Tiptronic
- Automatic transmission
- Semi-automatic transmission
- Continuously variable transmission
- Manual transmission
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