AWF8F35
AWF8F35/45 | |
---|---|
![]() Cutaway of an AWF8F35 | |
Overview | |
Manufacturer | Aisin AW |
Also called | BMW & Mini GA8F22AW Toyota UA80E/UA80F Volvo TG-81SC/SD GM AWF8F45 & AF50-8 VW AQ450 PSA EAT8 |
Production | 2013–present |
Body and chassis | |
Class | 8-speed transverse automatic transmission |
Related | ZF 8HP · ZF 9HP |
Chronology | |
Predecessor | AWTF-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
Gearset 1 is not an ordinary gearset but a reversed one. It employs two planetary gears which mesh with each other. One of these planets meshes with the sun gear, the other planet meshes with the ring gear. This results in different ratios being generated by the planetary and also causes the sun gear to rotate in the same direction as the ring gear when the planet carrier is the stationary.
This made it possible to manage with three wheel sets. As a result, the transmission is more compact than eight-speed transmissions for conventional drives. This meant that an eight-speed automatic transmission was also possible for transverse engines. The same gearset concept was first used by Lexus in 2007 and was the very first eight-speed automatic transmission for passenger cars on the world market.
Gear Model | R2 | R1 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | Total Span | Avg. Step | Compo- nents |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Transverse | 3 Gearsets 2 Brakes 4 Clutches | ||||||||||||
AW F8F35 · 2013 AW F8F45 · 2013 | −2.182 | −4.255 | 5.200 | 2.971 | 1.950 | 1.470 | 1.224 | 1.000 | 0.817 | 0.686 | 7.583 | 1.336 | |
AW F8F45 · 2013 | −2.059 | −4.015 | 5.250 | 3.029 | 1.950 | 1.457 | 1.221 | 1.000 | 0.809 | 0.673 | 7.800 | 1.341 | |
AW F8F35 · 8HP 2013 | −2.059 | −4.221 | 5.519 | 3.184 | 2.050 | 1.492 | 1.235 | 1.000 | 0.801 | 0.673 | 8.200 | 1.351 | |
Longitudinal | |||||||||||||
AA 80E · 2007 | −2.176 | −4.056 | 4.597 | 2.724 | 1.864 | 1.464 | 1.231 | 1.000 | 0.824 | 0.685 | 6.709 | 1.312 | |
AA 80E · 2007 | −2.053 | −3.786 | 4.796 | 2.811 | 1.844 | 1.429 | 1.214 | 1.000 | 0.818 | 0.672 | 7.132 | 1.324 | |
AA 80E · Porsche | −2.182 | −4.024 | 4.919 | 2.811 | 1.844 | 1.429 | 1.207 | 1.000 | 0.827 | 0.686 | 7.173 | 1.325 |
- ^ Differences in gear ratios have a measurable, direct impact on vehicle dynamics, performance, waste emissions as well as fuel mileage
Model | Final Drive |
---|---|
AWF8 F35 AWF8 F45 | 4.398 |
AWF8 F45 | 3.075 3.200 |
AWF8 F45 | 2.561 |
AA 80E | 2.69 |
With Assessment | Planetary Gearset: Teeth[a] | Count | Total | Avg. | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Reversed | Ravigneaux | |||||||||
Model Type | First Delivery Max. Input Torque | S1[b] R1[c] | S2[d] R2[e] | S3[f] R3[g] | Brakes Clutches | Ratio Span | Gear Step[h] | |||
Gear Ratio | R2 | R1 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
Step | [i] | [j] | ||||||||
Step 2[k] | ||||||||||
Shaft Speed | ||||||||||
Δ Shaft Speed | ||||||||||
Transverse engines | ||||||||||
AW F8F35 AW F8F45 | 350 N⋅m (258 lb⋅ft) · 2013 480 N⋅m (354 lb⋅ft) · 2013 | 38 78 | 36 44 | 44 96 | 2 4 | 7.5833 | 1.3357[h] | |||
Ratio | −2.1818 | −4.2545[i] | 5.2000 | 2.9714[l] | 1.9500 | 1.4700[h][m] | 1.2235[l][m] | 1.0000[l] | 0.8175 | 0.6857 |
Step | 1.9500 | 0.8181[i] | 1.0000 | 1.7500 | 1.5238 | 1.3266[h] | 1.2014 | 1.2235 | 1.2233 | 1.1921 |
Step 2[k] | 1.1484[l] | 1.1486 | 1.1042 | 0.9819[l] | 1.0002[l] | 1.0261 | ||||
Speed | –2.3833 | –1.2222 | 1.0000 | 1.7500 | 2.6667 | 3.5375 | 4.2500 | 5.200 | 6.3611 | 7.5833 |
Δ Speed | 1.1611 | 1.2222 | 1.0000 | 0.7500 | 0.9167 | 0.8708[m] | 0.7125[m] | 0.9500 | 1.1611 | 1.2222 |
AW F8F45 | 480 N⋅m (354 lb⋅ft) · 2013[5] | 38 78 | 26 34 | 34 70 | 2 4 | 7.8000 | 1.3410[h] | |||
Ratio | −2.0588 | −4.0147[i] | 5.2500 | 3.0288[l] | 1.9500 | 1.4570[h][m] | 1.2209[l][m] | 1.0000[l] | 0.8086 | 0.6731 |
Step | 1.9500 | 0.7647[i] | 1.0000 | 1.7333 | 1.5533 | 1.3384[h] | 1.1933 | 1.2209 | 1.2366 | 1.2014 |
Step 2[k] | 1.1159[l] | 1.1605 | 1.1215 | 0.9774[l] | 0.9873[l] | 1.0293 | ||||
Speed | –2.5500 | –1.3077 | 1.0000 | 1.7333 | 2.6923 | 3.6033 | 4.3000 | 5.2500 | 6.4923 | 7.5833 |
Δ Speed | 1.2423 | 1.3077 | 1.0000 | 0.7333 | 0.9590 | 0.9110[m] | 0.6967[m] | 0.9500 | 1.2423 | 1.3077 |
AW F8F35 | 350 N⋅m (258 lb⋅ft) · 2013 | 42 82 | 26 34 | 34 70 | 2 4 | 8.2000 | 1.3507[h] | |||
Ratio | −2.0588 | −4.2206[i] | 5.5192 | 3.1842[l] | 2.0500[l] | 1.4920 | 1.2349[l][m] | 1.0000[l] | 0.8008 | 0.6731 |
Step | 2.0500 | 0.7647[i] | 1.0000 | 1.7333 | 1.5533 | 1.3740 | 1.2082 | 1.2349 | 1.2488 | 1.1897 |
Step 2[k] | 1.1159[l] | 1.1305[l] | 1.1372 | 0.9783[l] | 0.9889[l] | 1.0496 | ||||
Speed | –2.6808 | –1.3077 | 1.0000 | 1.7333 | 2.6923 | 3.6992 | 4.4692 | 5.5192 | 6.8923 | 8.2000 |
Δ Speed | 1.3731 | 1.3077 | 1.0000 | 0.7333 | 0.9590 | 1.0069 | 0.7700[m] | 1.0500 | 1.3731 | 1.3077 |
Longitudinal engines | ||||||||||
AA 80E Lexus | 480 N⋅m (354 lb⋅ft) · 2007 | 38 82 | 30 34 | 34 74 | 2 4 | 6.7091 | 1.3125[h] | |||
Ratio | −2.1765 | −4.0561[i] | 4.5970 | 2.7241 | 1.8636 | 1.4642[h][m] | 1.2313[l][m] | 1.0000 | 0.8245 | 0.6852 |
Step | 1.8636 | 0.8824[i] | 1.0000 | 1.6875 | 1.4617 | 1.2728[h] | 1.1891 | 1.2313 | 1.2129 | 1.2033 |
Step 2[k] | 1.1545 | 1.1484 | 1.0704 | 0.9657[l] | 1.0152 | 1.0080 | ||||
Speed | –2.1121 | –1.1333 | 1.0000 | 1.6875 | 2.4667 | 3.1396 | 3.7333 | 4.5970 | 5.5758 | 6.7091 |
Δ Speed | 0.9788 | 1.1333 | 1.0000 | 0.6875 | 0.7792 | 0.6729[m] | 0.5938[m] | 0.8636 | 0.9788 | 1.1333 |
AA 80E | 38 83 | 30 38 | 38 78 | 2 4 | 7.1319 | 1.3240[h] | ||||
Ratio | −2.0526 | −3.7860[i] | 4.7956 | 2.8112[l] | 1.8444 | 1.4294[h][m] | 1.2137[l][m] | 1.0000[l] | 0.8176 | 0.6724 |
Step | 1.8444 | 0.7895[i] | 1.0000 | 1.7059 | 1.5241 | 1.2904[h] | 1.1777 | 1.2137 | 1.2230 | 1.2160 |
Step 2[k] | 1.1192[l] | 1.1811 | 1.0957 | 0.9703[l] | 0.9924[l] | 1.0058 | ||||
Speed | –2.3363 | –1.2667 | 1.0000 | 1.7059 | 2.6000 | 3.3550 | 3.9511 | 4.7956 | 5.8653 | 7.1319 |
Δ Speed | 1.0696 | 1.2667 | 1.0000 | 0.7059 | 0.8941 | 0.7550[m] | 0.5961[m] | 0.8444 | 1.0696 | 1.2667 |
AA 80E Porsche | 650 N⋅m (479 lb⋅ft) · 2013 | 38 83 | 36 44 | 44 96 | 2 4 | 7.1728 | 1.3251[h] | |||
Ratio | −2.1818 | −4.0242[i] | 4.9185 | 2.8106[l] | 1.8444 | 1.4295[h][m] | 1.2073[l][m] | 1.0000[l] | 0.8266 | 0.6857 |
Step | 1.8444 | 0.8181[i] | 1.0000 | 1.7500 | 1.5238 | 1.2903[h] | 1.1841 | 1.2073 | 1.2098 | 1.2054 |
Step 2[k] | 1.1484[l] | 1.1810 | 1.0897 | 0.9808[l] | 0.9979[l] | 1.0037 | ||||
Speed | –2.2543 | –1.2222 | 1.0000 | 1.7500 | 2.6667 | 3.3550 | 3.9511 | 4.7956 | 5.8653 | 7.1319 |
Δ Speed | 1.0321 | 1.2222 | 1.0000 | 0.7500 | 0.9167 | 0.7741[m] | 0.6333[m] | 0.8444 | 1.0321 | 1.2222 |
Ratio R & even | ||||||||||
Ratio R & odd | ||||||||||
Algebra And Actuated Shift Elements | ||||||||||
Brake A | ❶ | ❶ | ||||||||
Brake B | ❶ | ❶ | ❶ | |||||||
Clutch C | ❶ | ❶ | ❶ | ❶ | ❶ | |||||
Clutch D | ❶ | ❶ | ❶ | ❶ | ||||||
Clutch E | ❶ | ❶ | ❶ | |||||||
Clutch F | ❶ | ❶ | ❶ | |||||||
| ||||||||||
Applications
BMW/MINI
- 2015–present BMW 2 Series Active Tourer (F45) and Gran Tourer (F46) with 4-cylinder engines
- 2016–present BMW X1 (F48) with 4-cylinder engines
- 2016–present Mini Clubman (F54) with 4-cylinder engines
- 2016–present Mini Countryman (F60) with 4-cylinder engines (and B38 with AWD)
- 2018–present Mini Cooper SD (F55/F56) and JCW (F56) due to torque output over 300Nm
- 2018–present BMW X2 (F39) with 4-cylinder engines
- 2019–present BMW 1 Series (F40) with 4-cylinder engines
- 2020–present BMW 2 Series Gran Coupé with 4-cylinder engines
Changan
- 2019–present Oshan COS1° GT
- 2019–present Changan CS85
- 2020–present Changan UNI-K
- 2021–present Changan UNI-V
- 2022–present Changan CS75
Chery
- 2023–present Chery Tiggo 9 (AWD)
Citroën
- 2017–present Citroën C5 Aircross
- 2018–present Citroën Grand C4 SpaceTourer
- 2019–present Citroën Berlingo
- 2020–present Citroën C4
- 2021–present Citroën C5 X
DS Automobiles
Exeed
- 2023–present Exeed Lanyue
Geely
- 2019–present Geely Xingyue/Xingyue L[7]
- 2020–present Geely Xingrui
GM
- 2016 Chevrolet Malibu
- 2017 Buick LaCrosse[8]
- 2017–2019 Cadillac XT5[5]
- 2018–2020 Buick Regal TourX, (I4 AWD only)
Jaguar
- 2020–present Jaguar E-Pace (1.5t 3-cylinder engines)
Land Rover
- 2020–present Discovery Sport (1.5t 3-cylinder engines)
- 2020–present Evoque (1.5t 3-cylinder engines)
Lexus
- 2012–present Lexus RX (V6 AL10 F-Sport, AL20 & AL30 non Hybrids)
- 2018–present Lexus ES (non-hybrid engines)
- 2020–present Lexus LM (LM350)
- 2022–present Lexus NX (non-hybrid engines)
- 2024–present Lexus LBX (Morizo RR)
Lynk & Co
Mitsubishi
- 2017–present Mitsubishi Eclipse Cross (diesel engines)
- 2019–present Mitsubishi Delica (diesel engines)
Opel/Vauxhall
- 2017–present Opel Insignia
- 2017–present Opel Grandland X
- 2018–present Opel Combo
- 2020–present Opel Corsa
- 2020–present Opel Mokka
- 2021–present Opel Astra L[broken anchor]
Peugeot
- 2017–present Peugeot 5008
- 2017–present Peugeot 308
- 2019–present Peugeot 3008 1.6 EAT8 & 2.0 EAT8
- 2018–present Peugeot 508 EAT8
- 2019–present Peugeot Rifter EAT8
- 2019–present Peugeot 208
- 2019–present Peugeot 2008
- 2022–present Peugeot 408
Polestar
- 2019–present Polestar 1
Škoda
- 2018–present Škoda Karoq (Australian market)
- 2020–present Škoda Octavia (some markets)
Toyota (as UA8xx)
- 2018–present Toyota Avalon (non-hybrid engines)
- 2018–present Toyota Alphard/Vellfire
- 2018–present Toyota Camry (non-hybrid engines)
- 2017–2020 Toyota Sienna
- 2019–present Toyota RAV4 (non-hybrid)
- 2020–present Toyota Highlander/Grand Highlander
- 2024–present Toyota GR Yaris
Volkswagen/MAN
- 2017–present Volkswagen Crafter and MAN TGE (transversely mounted engine only)
- 2018–present Volkswagen Tiguan (US version only)[10]
- 2018–present Volkswagen Atlas (US version only)
- 2018–present Volkswagen Golf (US MK7 & MK8 in some markets)
- 2019–present Volkswagen Jetta (US version only)
- 2019–present Volkswagen Arteon (US version only)
- 2022–Volkswagen Taos (FWD models)[11]
Volvo (TG-81SC/SD)
- 2014–2016 Volvo S80 II[12]
- 2014–2016 Volvo V70 II[13]
- 2014–2016 Volvo XC70 II
- 2014–2017 Volvo XC60
- 2015–2018 Volvo S60 II
- 2015–2018 Volvo V60
- 2014–present Volvo XC90 II[14]
- 2016–present Volvo S90 II[14]
- 2016–present Volvo V90 II[14]
- 2016–present Volvo V40
- 2017–present Volvo XC60 II
- 2017–present Volvo XC40[15]
- 2018–present Volvo V60 II[3]
- 2018–present Volvo S60 III
References
- ^ 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.
- ^ 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.
- ^ 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
- ^ 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.
- ^ 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
- ^ "8 Speed Auto (US) Transmission and Torque Capacity".
- ^ "Test Drive Geely Xingyue Coupe SUV Review". 29 May 2019.
- ^ "All-New 2017 Buick LaCrosse is Here | TechLink". sandyblogs.com. Retrieved 2018-08-02.
- ^ "Lynk & Co. Reveals 05 coupe-like crossover".
- ^ Don Sherman (December 2016). "2018 Volkswagen Tiguan: We Finally Sample the U.S. Version". caranddriver.com.
- ^ "2022 Volkswagen Taos: What We Know So Far". 21 April 2021.
- ^ 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.
- ^ "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.
- ^ 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.
- ^ 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.