AWF8F35/45
Cutaway of an AWF8F35
Overview
ManufacturerAisin AW
Also calledBMW & Mini GA8F22AW
Toyota UA80E/UA80F
Volvo TG-81SC/SD
GM AWF8F45 & AF50-8
VW AQ450
PSA EAT8
Production2013–present
Body and chassis
Class8-speed transverse automatic transmission
RelatedZF 8HP · ZF 9HP
Chronology
PredecessorAWTF-80 SC transmission

The Aisin AW F8FXX series is the world's first[1] 8-speed automatic transmission designed for use in transverse engine applications. Aisin designed the transmission to package in the same space as preceding 6-speed designs, while increasing the total gear spread and reducing gear spacing.[2] It is also called the EAT8 (PSA), GA8F22AW (BMW & Mini), TG-81SC (Volvo), [3] AF50-8 (Opel/Vauxhall), [4] AWF8F45[5] (Cadillac), and AQ450 (Volkswagen Group).[6] First usage was in the 2013 model year Lexus RX350 F Sport.

Specifications

Gear Teeth and Ratios Planetary Gear Set: Teeth[a] Count Total Avg.
Ravigneaux Ravigneaux
Model
Type 		Version
First Delivery 		[b]
[c] 		[d]
[e] 		[f]
[g] 		[h]
[i] 		Brakes
Clutches 		Ratio
Span 		Gear
Step
Gear R 1 R 2 1 2 3 4 5 6 7 8 Final Drive
AW F8F35
AW F8F45 		350 N⋅m (260 lb⋅ft) · 2013
480 N⋅m (350 lb⋅ft) · 2013 		38
(58) 		(58)
78 		36
44 		44
96 		2
4 		7.5833 1.3357
Ratio –4.2545 –2.1818 5.2000 2.9714 1.9500 1.4700 1.2235 1.0000 0.8175 0.6857 4.398
AW F8F45 480 N⋅m (350 lb⋅ft)
2013[5] 		38
(58) 		(58)
78 		26
34 		34
70 		2
4 		7.8000 1.3410
Ratio –4.0147 –2.0588 5.2500 3.0288 1.9500 1.4570 1.2209 1.0000 0.8086 0.6731 3.075 · 3.200
AW F8F35 350 N⋅m (260 lb⋅ft)
2013 		42
(62) 		(62)
82 		26
34 		34
70 		2
4 		8.2000 1.3507
Ratio –4.2206 –2.0588 5.5192 3.1842 2.0500 1.4920 1.2349 1.0000 0.8008 0.6731 2.561
  1. ^ Planetary gearset orientation: (1) Compound Ravigneaux gearset 1 is on the input (turbine) side (2) Output shaft is ring 2.2 (ring gear of outer Ravigneaux gearset part of compound Ravigneaux gearset 2)
  2. ^ Sun 1.1: sun gear of inner Ravigneaux gearset part of compound Ravigneaux gearset 1
  3. ^ Ring 1.1: ring gear of inner Ravigneaux gearset part of compound Ravigneaux gearset 1
  4. ^ Sun 1.2: sun gear of outer Ravigneaux gearset part of compound Ravigneaux gearset 1
  5. ^ Ring 1.2: ring gear of outer Ravigneaux gearset part of compound Ravigneaux gearset 1
  6. ^ Sun 2.1: sun gear of inner Ravigneaux gearset part of compound Ravigneaux gearset 2
  7. ^ Ring 2.1: ring gear of inner Ravigneaux gearset part of compound Ravigneaux gearset 2
  8. ^ Sun 2.2: sun gear of outer Ravigneaux gearset part of compound Ravigneaux gearset 2
  9. ^ Ring 2.2: ring gear of outer Ravigneaux gearset part of compound Ravigneaux gearset 2

Applications

BMW/MINI

Changan

Chery

Citroën

DS Automobiles

Exeed

Geely

GM

Jaguar

Land Rover

Lexus

Lynk & Co

Mitsubishi

Opel/Vauxhall


Peugeot

Polestar

Škoda

Toyota (as UA8xx)

Volkswagen/MAN

Volvo (TG-81SC/SD)

References

  1. ^ Toshihiko Aoki; Hiroshi Kato; Naoki Kato; Morise Masaru (8 April 2013). The World's First Transverse 8-Speed Automatic Transmission (Technical report). SAE International. doi:10.4271/2013-01-1274. 2013-01-1274.
  2. ^ Aisin AW Co. "High Torque Capacity FWD 8-speed AT". www.aisin-aw.co.jp. Archived from the original on 2018-05-20. Retrieved 2018-05-19.
  3. ^ a b "Volvo V60 prijslijst Modeljaar 2019" [Volvo V60 price list model year 2019] (PDF). volvo-tools-prd-media.s3.amazonaws.com (in Dutch). Volvo Cars Netherlands. July 2018. pp. 18–19. Archived (PDF) from the original on 2021-10-16. Retrieved 2018-07-14. File valid from 12 November 2018
  4. ^ Geord Bednarek (2 December 2016). "Der neue Insignia – im 8-Stufen Takt" [The new Insignia – with 8-step beat]. www.opel-blog.com (in German). Opel AG. Archived from the original on 2017-10-15. Retrieved 2017-12-29.
  5. ^ a b c "Cadillac XT5 Initiates New Series of Cadillac Luxury Crossovers" (PDF). media.cadillac.com (Press release). Cadillac. 9 November 2015. p. 12. Retrieved 2018-07-14. No archive due to robots.txt
  6. ^ "8 Speed Auto (US) Transmission and Torque Capacity".
  7. ^ "Test Drive Geely Xingyue Coupe SUV Review". 29 May 2019.
  8. ^ "All-New 2017 Buick LaCrosse is Here | TechLink". sandyblogs.com. Retrieved 2018-08-02.
  9. ^ "Lynk & Co. Reveals 05 coupe-like crossover".
  10. ^ Don Sherman (December 2016). "2018 Volkswagen Tiguan: We Finally Sample the U.S. Version". caranddriver.com.
  11. ^ "2022 Volkswagen Taos: What We Know So Far". 21 April 2021.
  12. ^ Chris Davies (5 September 2014). "2015 Volvo S80 D4 Geartronic SE Lux review – Updated Swedish Exec Gets Greener". carproductstested.com. Archived from the original on 2017-11-07. Retrieved 2017-12-28.
  13. ^ "Volvo V70 – model year 2014". www.media.volvocars.com. Volvo Car Corporation. 13 May 2013. Archived from the original on 2013-10-23. Retrieved 2017-12-28.
  14. ^ a b c Paul Weissler (20 January 2016). "Volvo's 2017 S90 has standard semi-autonomous driving system". articles.sae.org. SAE International. Archived from the original on 2017-10-17. Retrieved 2017-12-29.
  15. ^ Gary Witzenburg (8 January 2018). "2019 XC40 spearheads Volvo's new CMA platform". SAE International. Archived from the original on 2018-06-12. Retrieved 2018-06-08.
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