AWTF-80 SC

The Aisin AWTF-80 SC is a 6 speed automatic transmission designed for use in transverse engine applications. It is designed to handle a maximum of convert|440|Nm|ftlbf|1|abbr=on of torque. It is built in Anjo, Japan. It is also called the TF80-SC, AF40-6, AM6 and AW6A-EL.

The design team set out to create a 6 speed automatic that fits in the same space as a manual gearbox. It measures convert|358|mm|in|1|abbr=on in length and weighs convert|90|kg|lb|0|abbr=on. Its combined use of a conventional 5-pinion planetary gearset and a compound Ravignaux gearset makes it incredibly light and compact. This combination is known as a Lepelletier arrangement. The shifting of gears is managed by a sophisticated computer programme which over-sees a clutch-to-clutch actuation. Gear changes are accomplished by one clutch engaging the instant the clutch from the previous gear disengages. The transmission control module (TCM) is located inside the transmission housing, instead of being located outside it. The advantage of this is to reduce external wiring as well as to provide a constant environment for TCM operation which encourages longevity. One aspect of the advanced nature of the electronics is at idle, it automatically selects neutral gear to reduce internal temperatures and improves fuel economy.

It utilises a special AW-1 transmission fluid which is labelled as being maintenance free. It has a fluid capacity of 8.0L (8.45qt).

All wheel drive transfer cases can be fitted to the AWTF-80 SC, making it ideal for use in cross-over type SUVs.

pecifications

Gear Ratios:

Maximum Shift speeds:

7000 rpm (up to 350 Nm)
6500 rpm (350 Nm to 400 Nm)

Torque Converter Diameter:

Applications

*Alfa Romeo 159
*Alfa Romeo Brera
*Alfa Romeo Spider
*Cadillac BLS
*Citroën C4
*Citroën C5
*Citroën C6
*Fiat Croma
*Ford Five Hundred
*Ford Fusion
*Lincoln Zephyr
*Mazda 6
*Mazda CX-7
*Mazda MPV
*Mercury Milan
*Mercury Montego
*Opel/Vauxhall Astra
*Opel/Vauxhall Vectra
*Opel/Vauxhall Zafira
*Peugeot 307
*Peugeot 407
*Peugeot 607
*Renault Espace
*Renault Vel Satis
*Saab 9-3
*Volvo S60
*Volvo V70
*Volvo XC70
*Volvo XC90

References

*(1) http://www.mathworks.com/products/simdrive/blocklist.html
*(2) http://www.aisin-aw.co.jp/en/02products/02at/01ff/index.html#ff6speed
*(3) http://www.automaticchoice.com/Catalogue/aw_tf80sc.pdf
*(4) http://media.gm.com/us/powertrain/en/product_services/2007/Whats%20New/07%20AF40%206%20transmission%20DRAFT%201.doc
*(5) http://www.altousa.com/np147.pdf
*(6) http://www.aw-europe.be/napa/files/drivingInnovation_automaticTransmission_1182180053307_4.pdf
*(7) http://media.gm.com/us/powertrain/en/product_services/2007/Spec%20Sheet/Transmissions/2007%20Automatics/07_M36.xls