AWTF-80 SC explained

AWTF-80 SC
Production:	2005 – 2019
Model Years:	2005 – 2019
Manufacturer:	Aisin Seiki
Class:	6-Speed Transverse Automatic Transmission
Successor:	AWF8F35 Transmission
Related:	Ford 6R GM 6L ZF 6HP

The Aisin AW TF-8# SC series is a 6-speed automatic transmission designed for use in transverse engine applications produced by Aisin Seiki. It is built in Anjō, Japan, and is also called TF-80SC^[1] (AWF21), AF40-6, AM6,^[2] AW6A-EL and TF-81SC (AF21).^[3] All-wheel drive transfer cases can be fitted to the AWTF-80 SC.

Specifications

Basic concept

A conventional 5-pinion planetary gearset and a compound Ravigneaux gearset is combined in a Lepelletier gear mechanism,^[4] to reduce both the size and weight. It was first realized in 2000 with the 6HP from ZF Friedrichshafen. Like all transmissions realized with Lepelletier transmissions, the AWTF-80 SC also dispenses with the use of the direct gear ratio, making it one of the very few automatic transmission concepts without such a ratio.

It also has the capability to achieve torque converter lock-up on all six forward gears, and disengage it completely when at a standstill, significantly closing the fuel efficiency gap between automatic and manual transmissions.

Gearbox control

To reduce external wiring as well as to provide a constant environment for the transmission control module (TCM), it is located inside the transmission housing. Gear shifting is managed by a computer program that oversees a clutch-to-clutch actuation that allows one clutch engage the instant the clutch from the previous gear disengages. When idling and with the foot brake depressed neutral gear is selected automatically. This helps to reduce internal temperatures and improve the fuel economy.

Technical data

Features

Maximum shift speed	7,000/min	6,500/min
Maximum torque	350Nm	400Nm
Torque converter diameter	260mm
Length	358mm
Weight	90kg (200lb)

With Assessment!colspan=3

Planetary Gearset: Teeth Lepelletier Gear Mechanism	Count	Total	Avg.
Simple				Ravigneaux
Model	Version First Delivery	S1 R1	S2 R2	S3 R3	Brakes Clutches	Ratio Span	Gear Step
Gear Ratio	R {i _{R}}	1 {i _{1}}	2 {i _{2}}	3 {i _{3}}	4 {i _{4}}	5 {i _{5}}	6 {i _{6}}
Step	- \tfrac{i _{R}} {i _{1}}	\tfrac{i _{1}} {i _{1}}	\tfrac{i _{1}} {i _{2}}	\tfrac{i _{2}} {i _{3}}	\tfrac{i _{3}} {i _{4}}	\tfrac{i _{4}} {i _{5}}	\tfrac{i _{5}} {i _{6}}
Step 2			\tfrac{i _{1}} {i _{2}} : \tfrac{i _{2}} {i _{3}}	\tfrac{i _{2}} {i _{3}} : \tfrac{i _{3}} {i _{4}}	\tfrac{i _{3}} {i _{4}} : \tfrac{i _{4}} {i _{5}}	\tfrac{i _{4}} {i _{5}} : \tfrac{i _{5}} {i _{6}}
Shaft Speed	\tfrac{i _{1}} {i _{R}}	\tfrac{i _{1}} {i _{1}}	\tfrac{i _{1}} {i _{2}}	\tfrac{i _{1}} {i _{3}}	\tfrac{i _{1}} {i _{4}}	\tfrac{i _{1}} {i _{5}}	\tfrac{i _{1}} {i _{6}}
Δ Shaft Speed	0 - \tfrac{i _{1}} {i _{R}}	\tfrac{i _{1}} {i _{1}} - 0	\tfrac{i _{1}} {i _{2}} - \tfrac{i _{1}} {i _{1}}	\tfrac{i _{1}} {i _{3}} - \tfrac{i _{1}} {i _{2}}	\tfrac{i _{1}} {i _{4}} - \tfrac{i _{1}} {i _{3}}	\tfrac{i _{1}} {i _{5}} - \tfrac{i _{1}} {i _{4}}	\tfrac{i _{1}} {i _{6}} - \tfrac{i _{1}} {i _{5}}
Aisin AWTF-80 SC	450Nm^[5] 2005	50 90	36 44	44 96	2 3
Gear Ratio		\tfrac{ 112 }{ 27 }		\tfrac{ 14 }{ 9 }		\tfrac{ 336 }{ 391 }
Step		1.0000		1.5238		1.3436	1.2532
Step 2			1.1484	1.1311		1.0722
Speed	–1.2222	1.0000	1.7500	2.6667	3.5926	4.8272
Δ Speed	1.2222	1.0000	0.7500	0.9167	0.9259	1.2346
ZF 6HP	All · 2000	37 71	31 38	38 85	2 3
Gear Ratio		\tfrac{ 9 , 180 }{ 2 , 201 }		\tfrac{ 108 }{ 71 }		\tfrac{ 4 , 590 }{ 5 , 293 }	\tfrac{ 85 }{ 123 }
Step		1.0000		1.5382		1.3178	1.2549
Step 2			1.1589	1.1559		1.0502
Speed	–1.2258	1.0000	1.7826	2.7419		4.8096	6.0354
Δ Speed	1.2258	1.0000	0.7826	0.9593		1.1599	1.2258
Ratio R & Even	- \tfrac{R _{3} (S _{1+} R _{1)}{R} _{1} S _{3} }	\tfrac{R _{3} (S _{1+} R _{1)} (S _{2} + R _{2} )}{R _{1} S _{2} (S _{3} + R _{3} )}		\tfrac{R _{2} R _{3} (S _{1+} R _{1)}{R} _{2} R _{3} (S _{1+} R _{1)-} S _{1} S _{2} S _{3} }		\tfrac{R _{3} }
Ratio Odd	\tfrac{R _{2} R _{3} (S _{1+} R _{1)}{R} _{1} S _{2} S _{3} }		\tfrac{S _{1} + R _{1} }		\tfrac{R _{3} (S _{1+} R _{1)}{R} _{3} (S _{1+} R _{1)+} S _{1} S _{3} }
Algebra And Actuated Shift Elements
Brake A		❶	❶	❶	❶
Brake B	❶			❶		❶
Clutch C			❶				❶
Clutch D	❶	❶
Clutch E					❶	❶	❶

Applications

Manufacturer A – M!Make!Period!Model

BMW Group
BMW	2014–2020	i8
	2015–present	225xe Active Tourer (F45)
	2020–present	X1 xDrive 25e (F48)
	2020–present	X2 xDrive 25e (F39)
Mini	2014–2017	Cooper (F56/55)
	2015–2017	Clubman (F54)
	2016–2017	Countryman (F60)
Fiat Chrysler Automobiles
Alfa Romeo	2005–2011	159
	2005–2010	Brera
	2006–2010	Spider
Fiat	2005–2011	Croma
	2012–2019	500
Lancia	2008–2014	Delta
Ford Motor Company
Ford	2005–2007	Five Hundred
	2006–2012	Ford Fusion (US)
	2007–2014	Mondeo MkIV
	2006–2014	Galaxy
Lincoln	2006	Zephyr
	2007–2012	MKZ
Mercury	2005–2010	Milan
	2005–2007	Montego
General Motors
Cadillac	2005–2010	BLS
	2009–2016	SRX II
Chevrolet	2008–2016	Cruze
Opel Vauxhall		Astra
		Vectra
		Signum
		Zafira
	2008–2017	Insignia
	2014–2017	Meriva
Saab	2006–2014	9-3 II (FWD & AWD)
	2013–2014	9-3 III
	2010–2012	9-5 II
Hyundai Motor Company
	2006–2014	Veracruz
Jaguar Land Rover
Jaguar	2007–2009	X-Type
Land Rover	2006–2014	Freelander 2
	2011–2013	Evoque
Luxgen
	2013–2015	S5 2.0 T
	2015-2019	S5 ecohyper
	2019–Present	S5 GT (GT 225) · 1.8 T
	2014–2015	U6
	2015–2018	U6 ecohyper
	2018–Present	Luxgen U6 GT (GT 220) 1.8 T
	2016–Present	Luxgen M7 ecohyper 2.2 T
	2016–Present	Luxgen U7 ecohyper 2.2 T
	2019–Present	URX 1.8 T
Mahindra & Mahindra
	2015–present	XUV&nbsp500
Mazda
	2005–2008	6 I
	2006–2012	CX-7
	2006–present	CX-9
	2006–present	MPV III
	2007–2012	6 II

Manufacturer N – Z!Make!Period!Model

PSA Group
Citroën		C4
		C5
		C6
		DS3
		DS4
		DS5
	2010–2016	Jumpy
		C-Elysée
Peugeot	2006–2008	307
	2014–2018	308
	2005–2010	407
	2010–present	408 (Saloon)
	2011–2018	508
	2005–2010	607
	2008–	3008
	2009–	5008
	2010–2016	Expert
Renault
	2005–2009	Vel Satis
	2006–2010	Espace
Suzuki
	2014–present	Vitara (FWD & AWD)
	2015–present	Baleno
	2017–present	Swift
	2017–present	SX4 S-Cross
Toyota Group & Lotus
Toyota	2006–2008	Previa (V6)
	2007–2018	Camry
	2007–2017	Aurion (V6)
	2007–2012	Blade (V6)
	2007–2013	Mark X Zio (V6)
	2008–2016	Highlander
	2008–2017	Alphard (V6)
	2008–2018	Avalon
	2008–2018	RAV4
	2009–2017	Venza
	2011–2016	Sienna
	2017	ProAce
Lexus	2007–2018	ES350
	2010–present	RX
	2015–present	NX200t
Lotus	2012	Evora (IPS)
	2022–	Emira (V6)
Scion	2011–2016	tC
Volkswagen Group
Audi	2003–2013	A3
	2015–2018	Q3
Škoda		Octavia
		Rapid
Volkswagen	2003–2010	Transporter
	2007	Jetta
	2009–2017	Tiguan
	2012–present	Passat
	2019–present	Polo (MK5) (India)
Volvo
	2005–2014	XC90^[6] (FWD & AWD)
	2006–2009	S60^[7] (FWD & AWD)
	2006–2008	Volvo V70 II (FWD & AWD)
	2006–2008	XC70 (AWD)
	2007–2016	S80 II^[8] ^[9] (FWD & AWD)
	2008–2016	V70 III^[10] (FWD & AWD)
	2008–2016	XC70 II (FWD & AWD)
	2009–2017	XC60 (FWD & AWD)
	2011–2018	S60 II (FWD & AWD)
	2016–2017	S90 (FWD)
	2016–2018	V90 (FWD)
	2011–2018	V60 (FWD & AWD)
	2011–2012	S40 II (FWD)
	2011–2012	V50^[11] (FWD)
	2011–2013	C30 (FWD)
	2011–2013	C70 II (FWD)
	2012–2014	V40 II (FWD)

External links

• Block Reference (SimDriveline Version 1)
• AISIN AW CO.,LTD./For FWD Vehicle AT
• Alto Products Corp.
• Driving innovation Wayback Machine

Notes and References

1. Web site: Volvo Car Bookstore . 2015-09-13 . 2015-03-26 . https://web.archive.org/web/20150326130122/https://www.volvotechinfo.com/index.cfm?event=viewFile&filename=ReleaseNewsVIDA2014C.pdf&hash=EEA99E460619945AD28D8979F7BDF452 . live .
2. Web site: Archived copy . 2017-06-04 . 2021-03-04 . https://web.archive.org/web/20210304233730/http://citroen-de-de.custhelp.com/euf/assets/images/allemagne/citroen/Wartungshefte/2006/cs9006-2_de.pdf . dead .
3. Web site: Archived copy . 2015-01-02 . dead . https://web.archive.org/web/20160304122443/http://www.atraonline.com/gears/2008/2008-08/2008_8_6.pdf . 2016-03-04 .
4. Web site: Riley . Mike . 2013-09-01 . Lepelletier Planetary System . 2023-03-03 . Transmission Digest . en-US . 2023-06-21 . https://web.archive.org/web/20230621163418/https://www.transmissiondigest.com/lepelletier-planetary-system/ . live .
5. Kasuya. Satoru. Taniguchi. Takao. Tsukamoto. Kazumasa. Hayabuchi. Masahiro. Nishida. Masaaki. Suzuki. Akitomo. Niki. Hiroshi. 2005. AISIN AW New High Torque Capacity Six-Speed Automatic Transmission for FWD vehicles. SAE Transactions. 114. 1193–1201. 44725152. 0096-736X. 2020-07-09. 2020-07-20. https://web.archive.org/web/20200720192453/https://www.jstor.org/stable/44725152. live.
6. Web site: en, de . Kraftstoffbetriebene Heizung, D5244T, TF-80SC . Fuel powered heater, D5244T, TF-80SC . Accessory installation instructions . Volvo Car Customer Service . https://web.archive.org/web/20180225172550/http://accessories.volvocars.com/de-de/XC90/InstallationInstruction/Document/VCC-297089-1/2007/D5%20AWD/Automatic/default/NOTHING . 2018-02-25 . 2018-02-25 . live.
7. Web site: en . Volvo Car USA, LLC. Bookstore:RTJ21096-2009-06-10 . www.volvotechinfo.com . https://web.archive.org/web/20160304105719/https://www.volvotechinfo.com/index.cfm?event=item.getItem&item=RTJ21096-2009-06-10 . 2016-03-04 . 2017-11-26 . dead.
8. Web site: en . Volvo Car USA, LLC. Bookstore:TJ26840-2014-11-06 . https://web.archive.org/web/20160617153342/https://www.volvotechinfo.com/index.cfm?event=item.getItem&item=TJ26840-2014-11-06 . 2016-06-17 . 2017-11-26 . usurped.
9. Web site: en . Models - S80 - Technical Data - Volvo Car UK Media Newsroom . Volvo Car Corporation . 2008 . https://web.archive.org/web/20160304085830/https://www.media.volvocars.com/uk/en-gb/models/s80/2009/specifications . 2016-03-04 . 2015-09-13 . dead.
10. Web site: en . Volvo Car USA, LLC. Bookstore:RTJ20857-2009-04-15 . Volvo Cars of North America . www.volvotechinfo.com . 15 April 2009 . https://web.archive.org/web/20180225172607/https://www.volvotechinfo.com/index.cfm?event=item.getItem&item=RTJ20857-2009-04-15 . 2018-02-25 . 2018-02-25 . live.
11. Web site: de . Volvo V50 Betriebsanleitung (MY12) . Volvo V50 owner's manual (MY12) . Volvo Car Corporation . 312 . 2011 . 2019-01-16 . 2016-04-13 . https://web.archive.org/web/20160413235115/http://az685612.vo.msecnd.net/pdfs/697dad82f9e38155435b82dfcdcdd95197121416/V50_owners_manual_MY12_DE_tp14038.pdf . live .