Engineering:GM 6L50 transmission
| 6L45 · 6L50 | |
|---|---|
| Overview | |
| Manufacturer | General Motors |
| Production | 2006–present |
| Body and chassis | |
| Class | 6-Speed Longitudinal Automatic Transmission |
| Related | GM 6L80 ZF 6HP |
| Chronology | |
| Predecessor | 4L60-E · 4L65-E 5L40-E · 5L50 |
| Successor | GM 8L45 |
The 6L50 (and similar 6L45) is a 6-speed longitudinally-mounted automatic transmission produced by General Motors. It is very similar in design to the larger 6L80/6L90, and is produced at GM Powertrain plants in Toledo, Ohio; Silao, Guanajuato, Mexico; and by the independent Punch Powerglide company in Strasbourg, France. This transmission features clutch to clutch shifting, eliminating the bands used on older transmission designs. The 6L50 debuted for the 2007 model year on the V8-powered versions of the Cadillac STS sedan and Cadillac SRX crossover, and replaces the 5L40-E and 5L50 in GM's lineup. The 6L45 version is used in certain BMW vehicles and the Cadillac ATS, as part of either rear-wheel drive and all-wheel drive powertrains.
The 6L50 is adaptable to rear-wheel drive and all-wheel drive applications. The 6L45 can accommodate engines with up to 332 lb⋅ft (450 N⋅m) of torque and vehicles with a GVWR up to 5,000 pounds (2,300 kg).
Specifications
| Gear Teeth
and Ratios |
Planetary Gearset: Teeth | Count | Total | Avg. | |||
|---|---|---|---|---|---|---|---|
| Ravigneaux | Simple | ||||||
| Type | Sun 1.1
Ring 1.1 |
Sun 1.2
Ring 1.2 |
Sun 2
Ring 2 |
Brakes
Clutches |
Ratio
Span |
Gear
Step | |
| Gear | R | 1 | 2 | 3 | 4 | 5 | 6 |
| 6L45
6L50 |
450 N⋅m (330 lb⋅ft)
500 N⋅m (370 lb⋅ft) |
37
47 |
47
97 |
49
89 |
2
3 |
6.0346 | 1.4326 |
| Ratio | - 3.2001 | 4.0650 | 2.3712 | 1.5506 | 1.1567 | 0.8532 | 0.6736 |
| 6L80 | 800 N⋅m (590 lb⋅ft) | 35
46 |
46
92 |
50
94 |
2
3 |
6.0401 | 1.4329 |
| Ratio | - 3.0638 | 4.0267 | 2.3635 | 1.5319 | 1.1522 | 0.8521 | 0.6667 |
| ZF
6HP ALL |
31
38 |
38
85 |
37
71 |
2
3 |
6.0354 | 1.4327 | |
| Ratio | - 3.4025 | 4.1708 | 2.3397 | 1.5211 | 1.1428 | 0.8672 | 0.6911 |
Maximum engine power: 315 bhp (235 kW)
Maximum gearbox torque: 480 N⋅m (350 lb⋅ft)
Maximum shift speed: 7000 rpm
Maximum Validated Weight (GVW): 6,613 pounds (3,000 kg) Maximum Validated Weight (GCVW): 12,505 pounds (5,672 kg)
7-position quadrant: P, R, N, D, X, X, X (X = available calibratable range position)
Case material: Die cast aluminum
Shift pattern: (2) Three-way on/off solenoids
Shift quality: Five variable bleed solenoid
Torque converter clutch: Variable Bleed Solenoid ECCC
Converter size: 240 mm, 258 mm
Fluid type: DEXRON VI
Fluid capacity with 258 & 300 mm converter: 9.1 kg
Available Control Features
Multiple Shift Patterns (Selectable)
Driver Shift Control (Tap Up / Tap Down)
Enhanced Performance Algorithm Shifting (PAS)
Selectable Tow / Haul Mode
Engine Torque Management On All Shifts
Altitude and Temperature Compensation
Adaptive Shift Time
Neutral Idle
Reverse Lockout
Automatic Grade Braking
Additional Features
OBDII / EOBD
Integral Electro/Hydraulic Controls Module (Tehcm)
Control Interface Protocol – GMLAN
The transmission control module (TCM) is built into the solenoid pack/housing.
Assembly sites: GMPT Strasbourg, France; GMPT Toledo, Ohio, USA; GMPT Silao, Mexico
Applications
6L45
- 2007–2010 : BMW X3 - 3.0si / 2.5si / 3.0i
- 2007–2013: BMW 3 series - 330(x)i / 328(x)i / 325(x)i / 323i / 320i / 318i / 316i
- 2007–2019: BMW 1 series - 130i / 128i / 125i / 120i / 118i / 116i
- 2009–2015: BMW X1 (E84) - 2.8i xDrive / 2.5i xDrive / 1.8i sDrive
- 2013–2015 : Cadillac ATS[1]
- 2010–2013 : Cadillac SLS
- 2012–2017 : Chevrolet Caprice PPV V6
- 2011-2013: Holden VE Commodore, Calais, SV6
- 2013-2017: Holden VF Commodore, Calais, SV6
6L50
- 2007–2011 : Cadillac SLS
- 2007–2011 : Cadillac STS
- 2007–2009 : Cadillac SRX
- 2008–2015 : Cadillac CTS
- 2010–2015 : Camaro LS/LT (V6 Models)
- 2009–2011: Holden VE Commodore / Holden VE Berlina / Holden VE Calais / Chevrolet Lumina / Chevrolet Omega
- 2009–2011: Holden WM Statesman/Caprice / Daewoo Veritas
- 2015-2022: Chevrolet Colorado[2]
- 2019–present : UAZ Patriot[3][circular reference]
- 2022-on : Bremach[4]
See also
References
- ↑ Csere, Csaba (March 2012). Dissected: 2013 Cadillac ATS. Hearst Communications, Inc. ISBN 9781858941905. OCLC 38224673. http://www.caranddriver.com/features/dissected-2013-cadillac-ats-feature. Retrieved 2012-11-21.
- ↑ "2015 Chevrolet Colorado Specifications". GM. http://media.gm.com/media/us/en/chevrolet/vehicles/colorado/2015.tab1.html. Retrieved 2014-10-14.
- ↑ "UAZ Patriot". https://en.wikipedia.org/wiki/UAZ_Patriot.
- ↑ "Bremach Suv". http://bremach.us/SUV.html.
 |
