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ZF 6HP transmission

From Wikipedia, the free encyclopedia

6HP
Overview
ManufacturerZF Friedrichshafen
Production2000–2014
Model years2000–2014
Body and chassis
Class6-Speed Longitudinal Automatic Transmission
RelatedFord 6R
GM 6L
Aisin AWTF-80 SC
Chronology
PredecessorZF 5HP Transmission
Successor ZF 8HP Transmission

6HP is ZF Friedrichshafen AG's trademark name for its six-speed automatic transmission models (6-speed transmission with Hydraulic converter and Planetary gearsets) for longitudinal engine applications, designed and built by ZF's subsidiary in Saarbrücken. Released as the 6HP 26 in 2000, it was the first six-speed automatic transmission in a production passenger car. Other variations of the first generation 6HP in addition to the 6HP 26, were 6HP19, and 6HP 32 having lower and higher torque capacity, respectively. In 2007, the second generation of the 6HP series was introduced, with models 6HP 21 and 6HP 28. A 6HP 34 was planned, but never went into production.

The last 6HP automatic transmission was produced by the Saarbrücken plant in March 2014 after 7,050,232 units were produced.[1][2] The ZF plant in Shanghai continued to produce the 6HP for the Chinese market.[1]

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  • How To: Know WHAT Repair Kit You Need For Your BMW ZF 6hp 6 Speed Automatic Transmission
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Transcription

Specifications

New Paradigm

The 6HP is the first transmission designed according to ZF's new paradigm. After gaining additional gear ratios only with additional components, this time the number of components has to decrease while the number of ratios still increse. The 6HP uses a Lepelletier epicyclic/planetary gearset, which can provide more gear ratios with significantly fewer components. This means the 6HP 26 is actually lighter than its five-speed 5HP predecessors. Coming from 5 gear ratios made of 10 main components[a] to the 6 made of 8 now reflects, what major progress the Lepelletier gear mechanism means compared to conventional designs like the 5HP-family.

Basic concept

A conventional planetary gearset and a compound Ravigneaux gearset is combined in a Lepelletier gear mechanism,[3] to reduce both the size and weight. It was first realized here. Like all transmissions realized with Lepelletier transmissions, the 6HP 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.

Technical data

Gear Teeth and Ratios[b][c] Planetary Gearset: Teeth[d]
Lepelletier Gear Mechanism
Count Total Avg.
Simple Ravigneaux
Manufacturer
Model
Version
First Delivery
[e]
[f]
[g]
[h]
[i]
[j]
Brakes
Clutches
Ratio
Span
Gear
Step
Gear R 1 2 3 4 5 6
Step
–R : 1 1 : 2 2 : 3 3 : 4 4 : 5 5 : 6
1st Generation
ZF 6HP 26[k]
ZF 6HP 19[l]
ZF 6HP 32[m]
600 N⋅m (443 lb⋅ft) · 2000
350 N⋅m (258 lb⋅ft)[n] · 2000
750 N⋅m (553 lb⋅ft) · 2000[4]
37
71
31
38
38
85
2
3
6.0354 1.4327
Ratio
−3.4025
4.1708
2.3397
1.5211
1.1428
0.8672
0.6911
Step 0.8158 1.7826 1.5382 1.3311 1.3178 1.2549
2nd Generation
ZF 6HP 28[o]
ZF 6HP 21[p]
ZF 6HP 34[q]
600 N⋅m (443 lb⋅ft) · 2007
350 N⋅m (258 lb⋅ft) · 2007[r]
750 N⋅m (553 lb⋅ft) · [s]
37
71
31
38
38
85
2
3
6.0354 1.4327
Ratio −3.4025 4.1708 2.3397 1.5211 1.1428 0.8672 0.6911
Step 0.8158 1.7826 1.5382 1.3311 1.3178 1.2549
Other Manufacturer
Aisin
AWTF-80 SC
45
81
36
44
44
96
2
3
6.0494 1.4333
Ratio
−3.3939
4.1481
2.3704
1.5556
1.1546
0.8593
0.6857
Step 0.8182 1.7500 1.5238 1.3472 1.3434 1.2532
Ford
6R 60 · 6R 80
600 N⋅m (443 lb⋅ft)
800 N⋅m (590 lb⋅ft)
37
71
31
38
38
85
2
3
6.0354 1.4327
Ratio −3.4025 4.1708 2.3397 1.5211 1.1428 0.8672 0.6911
Step 0.8158 1.7826 1.5382 1.3311 1.3178 1.2549
Ford
6R 140
1,400 N⋅m (1,033 lb⋅ft) 49
95
37
47
47
97
2
3
5.8993 1.4261
Ratio
−3.1283
3.9738
2.3181
1.5158
1.1492
0.8585
0.6736
Step 0.7872 1.7143 1.5293 1.3190 1.3386 1.2744
GM
6L 45 · 6L 50
500 N⋅m (369 lb⋅ft) 49
89
37
47
47
97
2
3
6.0346 1.4326
Ratio
−3.2001
4.0650
2.3712
1.5506
1.1567
0.8532
0.6736
Step 0.7872 1.7143 1.5293 1.3406 1.3557 1.2662
GM
6L 80 · 6L 90
800 N⋅m (590 lb⋅ft) 50
94
35
46
46
92
2
3
6.0401 1.4329
Ratio
−3.0638
4.0267
2.3635
1.5319
1.1522
0.8521
0.6667
Step 0.7607 1.7037 1.5429 1.3296 1.3522 1.2781
Ratio
R & Even
Ratio
Odd
ZF
5HP 18[t]
310 N⋅m (229 lb⋅ft)
1990
32
76
38[u]
34
34
98
3
4
4.9363 1.4906
Ratio
−4.0960
3.6648
1.9990
1.4067
1.0000
0.7424
Step 1.1176 1.8333 1.4211 1.4067 1.3469
  1. ^ 3 gearsets (2 gearsets combined as a Ravigneaux compound gearset), brakes, clutches
  2. ^ The 6HP-transmission is the first one to use the Lepelletier gear mechanism
  3. ^ Other gearboxes using the Lepelletier gear mechanism see infobox
  4. ^ Planetary gearset orientation: (1) Planetary gearset 1 is on the input (turbine) side (2) Output shaft is ring 2.2 (ring gear of outer Ravigneaux gearset part)
  5. ^ Sun 1: sun gear of gearset 1
  6. ^ Ring 1: ring gear of gearset 1
  7. ^ Sun 2.1: sun gear of inner Ravigneaux gearset part
  8. ^ Ring 2.1: ring gear of inner Ravigneaux gearset part
  9. ^ Sun 2.2: sun gear of outer Ravigneaux gearset part
  10. ^ Ring 2.2: ring gear of outer Ravigneaux gearset part
  11. ^ for Rear-wheel drive cars
  12. ^ for Rear-wheel drive cars
  13. ^ for Rear-wheel drive cars
  14. ^ 350 N⋅m (258 lbf⋅ft) or 400 N⋅m (295 lbf⋅ft)
  15. ^ for Rear-wheel drive cars
  16. ^ for Rear-wheel drive cars
  17. ^ for Rear-wheel drive cars
  18. ^ produced in the PRC,[2] alternatively known as 6HP 19tu and 6HP 19z
  19. ^ planned, but never went into production[5]
  20. ^ no Lepelletier gear mechanism is applied · shown here to reflect the progress the Lepelletier gear mechanism means
  21. ^ inner and outer sun gear of the Ravigneaux planetary gearset are inverted

Imperfections

Problems with this transmission are well known.[citation needed] This transmission locks up the torque converter in all gears, increasing wear. Combined with a sealed transmission pan and "lifetime fluid", some people have experienced catastrophic transmission failure. Owners report shift issues when oil begins breaking down beyond 50K miles, hence shifting issues are common.[citation needed]

There are also problems with the valve block and solenoids[citation needed] When this failure starts to occur, shift quality and speed, torque transfer and even loss of ability to engage gears can occur. These problems led Volkswagen Group to extend the warranty on all of their vehicles equipped with this transmission to 100,000 miles or 10 years.[citation needed]

Applications

First generation

6HP 19

  • BMW X3
  • BMW 520i (E60)
  • BMW 528i (E60)
  • BMW 530i, (E60)
  • BMW 630i, (E63)
  • BMW 730i/li, (E65/E66)
  • BMW 318i, 320i, 325i, 328i, 330i, 335i (E9X), pre-LCI
  • BMW 116i, 118i, 120i (E87), pre-LCI, 135i (E82), 118d (E81)
  • BMW Z4 E85 LCI, E86
  • Hyundai Genesis Coupe - 2010-2012 3.8L

6HP 19A

The 6HP 19A is a variation of the 6HP 19 for Four-wheel drive applications (Allrad, all wheel).It was used by the Volkswagen Group for some permanent four-wheel drive models.

6HP 26

The 6HP 26 was the initial version and first used by the BMW 7 Series (E65) in 2001. Initially only used by premium brands, it was later available on the 2009 model year V8 Hyundai Genesis.

Several versions of the 6HP 26 are available depending on application and brand: 6HP 26, 6HP 26A and 6HP 26X.

Ford has developed their own versions (Ford 6R 60 and Ford 6R 80) based on the 6HP 26. Therefore, certain Ford vehicles will not be listed.

6HP 26A

The 6HP 26A is a variation of the 6HP 26 for Four-wheel drive applications (Allrad, all wheel). It was used by the Volkswagen Group for some permanent four-wheel drive models and packages a TORSEN type center differential, and open front differential into the transmission assembly.

6H P26X & 6HP 26Z

The 6HP 26X and 6HP 26Z is another variation of the 6HP 26, also for Four-wheel drive applications. This transmission is suitable for 4WDs with a separate transfer box (the "X" stands for external 4WD).

6HP 32

  • BMW E65 745d (LCI)
  • Audi Q7 4L V12 TDI 1,000 N⋅m (738 lb⋅ft)

6HP 32A

The 6HP 32A is a variation of the 6HP 32 for Four-wheel drive applications (Allrad, all wheel).

  • Volkswagen Phaeton 5.0 V10 TDi (internal 4x4)

Second generation

6HP 21

  • 2011–2014 Ford Falcon (FG2 turbocharged inline-four, naturally-aspirated inline-six, turbocharged inline-six and supercharge V8)
  • 2014–2016 Ford Falcon (FG X turbocharged inline-four, naturally-aspirated inline-six, turbocharged inline-six and supercharged V8 )[2]
  • 2014–2016 Ford Territory (SZ II petrol)[13]
  • 2010–2012 BMW 320d Lci (Thailand) (Engine N47D20)
  • 2011–2013 BMW 335i (E9X)
  • 2013–2015 BMW X1 (E84) xDrive35i
  • 2009 LCI (BMW 528i E60) (Engine: N52B30AE)
  • 2014-Present Maxus G10

6HP 28

6HP 34

The 6HP 34 was planned for high-output applications. As the successor 8HP was about to be launched and innovations are typically introduced first in the premium segment, the 6HP 34 never went into production.[5]

See also

References

  1. ^ a b "More than Seven Million: ZF Ends Production of Successful 6-Speed Automatic Transmission" (Press release). ZF Friedrichshafen. 31 March 2014. Retrieved 2 August 2016.
  2. ^ a b c d e "Review: Ford FG X Falcon (2014–16)". AustralianCar.Reviews. Retrieved 2 August 2016.
  3. ^ Riley, Mike (2013-09-01). "Lepelletier Planetary System". Transmission Digest. Archived from the original on 2023-06-21. Retrieved 2023-03-03.
  4. ^ "ZF 6HP26 Transmission" (PDF). Retrieved 2017-02-02.
  5. ^ a b "ZF 6HP34" (PDF). ZF Friedrichshafen AG. Retrieved 18 September 2009.[permanent dead link]
  6. ^ Markus, Frank (November 2001). "BMW 745i – First Drive Review". Car and Driver. Archived from the original on 18 September 2014.
  7. ^ "2003 model year XK service training technical guide" (PDF). Jaguar Cars North America. 30 September 2002. p. 4. Archived from the original (PDF) on 8 January 2016.
  8. ^ Crawford, Anthony (25 July 2007). "2007 Aston Martin DB9 Coupe Road Test". CarAdvice. Retrieved 13 September 2016.
  9. ^ a b c "Aston Martin Automatic Gearboxes". JT Automatics Ltd. Archived from the original on 25 April 2016.
  10. ^ "Review: Ford BF Falcon (2005–10)". AustralianCar.Reviews. Retrieved 2 August 2016.
  11. ^ "Review: Ford FG Falcon (2008–14)". AustralianCar.Reviews. Retrieved 2 August 2016.
  12. ^ "Review: Ford SY Territory (2005–11)". AustralianCar.Reviews. Retrieved 2 August 2016.
  13. ^ a b "Review: Ford SZ Territory (2011–16)". AustralianCar.Reviews. Retrieved 2 August 2016.
This page was last edited on 14 March 2024, at 15:25
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