ZF 8HP transmission
Encyclopedia
The ZF 8HP is an eight-speed automatic transmission
, designed and built by ZF Friedrichshafen AG
subsidiary ZF Getriebe GmbH in Saarbrücken. It is to debut in a rear-wheel drive application in the new BMW
7 Series
760Li saloon fitted with the V12 engine
.
One of its main aims is to improve vehicle fuel economy, and it can achieve an 11% saving compared to ZF-6 speed transmission and 14% verse modern 5-speed transmissions. Due to changes in internal design, shift time
s have reduced to 200 milliseconds, along with the ability to shift in a non-sequential manner - going from 8th to 2nd in extreme situations. In the 8HP70 version, it has a torque
handling limit of 700 newton metres (516 ft·lbf), and weighs 90 kilograms (198 lb).
Future development will see two four-wheel drive
versions available, with version destined for Volkswagen Group
applications, using a Torsen
centre differential. It will be able to encompass a torque range from 300 newton metres (221 ft·lbf) to 1000 newton metres (738 ft·lbf), and will be available for use in middle class cars, through to large luxury sport utility vehicle
s.
Chrysler Group LLC will initially receive the 8HP 8-speed automatic transmissions from the ZF Getriebe GmbH plant in Saarbrücken, Germany. By 2013, in parallel with Chrysler Group, ZF is setting up a new transmission production plant in North America, where the 8-speed transmissions will be produced. ZF Friedrichshafen and Chrysler Group have reached a supply and license agreement for ZF's 8HP 8-speed automatic transmission. Chrysler Group is licensed to produce the 8HP at the company’s Kokomo Transmission Plant and the Kokomo Casting plant
, starting in 2013.
Automatic transmission
An automatic transmission is one type of motor vehicle transmission that can automatically change gear ratios as the vehicle moves, freeing the driver from having to shift gears manually...
, designed and built by ZF Friedrichshafen AG
ZF Friedrichshafen
ZF Friedrichshafen AG, also known as ZF Group, and commonly abbreviated to ZF, is a German public company headquartered in Friedrichshafen, in the south-west German region of Baden-Württemberg....
subsidiary ZF Getriebe GmbH in Saarbrücken. It is to debut in a rear-wheel drive application in the new BMW
BMW
Bayerische Motoren Werke AG is a German automobile, motorcycle and engine manufacturing company founded in 1916. It also owns and produces the Mini marque, and is the parent company of Rolls-Royce Motor Cars. BMW produces motorcycles under BMW Motorrad and Husqvarna brands...
7 Series
BMW 7 Series
The BMW 7 Series is a line of full-size luxury vehicles produced by the German automaker BMW. Introduced in 1977, it is BMW's flagship car and is only available as a sedan or extended-length limousine...
760Li saloon fitted with the V12 engine
BMW N74
The N74 a V12 engine built by BMW in Munich, Germany. As of 2009 it is the company's flagship engine in the 7-Series, only being offered in the Li long wheelbase variant....
.
One of its main aims is to improve vehicle fuel economy, and it can achieve an 11% saving compared to ZF-6 speed transmission and 14% verse modern 5-speed transmissions. Due to changes in internal design, shift time
Shift time
Shift time refers to the time interval between gear changes in a transmission during which power delivery is interrupted. This is usually in reference to motor vehicles but can apply to any gearbox. Reducing shift time is important in performance vehicles or race cars because during shifting the...
s have reduced to 200 milliseconds, along with the ability to shift in a non-sequential manner - going from 8th to 2nd in extreme situations. In the 8HP70 version, it has a torque
Torque
Torque, moment or moment of force , is the tendency of a force to rotate an object about an axis, fulcrum, or pivot. Just as a force is a push or a pull, a torque can be thought of as a twist....
handling limit of 700 newton metres (516 ft·lbf), and weighs 90 kilograms (198 lb).
Future development will see two four-wheel drive
Four-wheel drive
Four-wheel drive, 4WD, or 4×4 is a four-wheeled vehicle with a drivetrain that allows all four wheels to receive torque from the engine simultaneously...
versions available, with version destined for Volkswagen Group
Volkswagen Group
Volkswagen Group is a German multinational automobile manufacturing group. , Volkswagen was ranked as the world’s third largest motor vehicle manufacturer and Europe's largest....
applications, using a Torsen
Torsen
Torsen is a type of differential used in automobiles. It was invented by American Vernon Gleasman and manufactured by the Gleason Corporation. Torsen is a contraction of Torque-Sensing...
centre differential. It will be able to encompass a torque range from 300 newton metres (221 ft·lbf) to 1000 newton metres (738 ft·lbf), and will be available for use in middle class cars, through to large luxury sport utility vehicle
Sport utility vehicle
A sport utility vehicle is a generic marketing term for a vehicle similar to a station wagon, but built on a light-truck chassis. It is usually equipped with four-wheel drive for on- or off-road ability, and with some pretension or ability to be used as an off-road vehicle. Not all four-wheel...
s.
Chrysler Group LLC will initially receive the 8HP 8-speed automatic transmissions from the ZF Getriebe GmbH plant in Saarbrücken, Germany. By 2013, in parallel with Chrysler Group, ZF is setting up a new transmission production plant in North America, where the 8-speed transmissions will be produced. ZF Friedrichshafen and Chrysler Group have reached a supply and license agreement for ZF's 8HP 8-speed automatic transmission. Chrysler Group is licensed to produce the 8HP at the company’s Kokomo Transmission Plant and the Kokomo Casting plant
Kokomo Casting
Kokomo Casting is a Chrysler automobile factory in Kokomo, Indiana. The factory opened in 1965 and was expanded in 1969, 1986, 1995, and 1997. It is the largest die casting factory in the world.In June 2010 Chrysler announced a 300 million dollar investment to retool and modernize the Kokomo...
, starting in 2013.
Gear ratios
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | R | Final Drive |
|---|---|---|---|---|---|---|---|---|---|
| 4.696 | 3.130 | 2.104 | 1.667 | 1.285 | 1.000 | 0.839 | 0.667 | 3.300 | 2.81 |
- 75 mph @ 1500 rpm in 8th gear.
Audi
- Audi A4Audi A4The first generation Audi A4 debuted in 1994, with production starting November 1994. It was built on the Volkswagen Group B5 platform, which it shared with the fourth generation Volkswagen Passat . It had a front-mounted longitudinal engine and front-wheel drive...
North American version - Audi A5Audi A5The Audi A5 is a coupé produced by the German automobile manufacturer Audi since 2007. It is the coupé, cabriolet, and five-door fastback versions of the fourth generation Audi A4 saloon and estate models....
North American version - Audi A6Audi A6The Audi A6 is an executive car marketed by the German automaker Audi AG, now in its fourth generation. As the successor to the Audi 100, the A6 is manufactured in Neckarsulm, Germany – and is available in saloon, and wagon configurations, the latter marketed by Audi as the Avant.All generations...
- Audi A7Audi A7The Audi Sportback concept is a concept car produced by Audi, shown at the 2009 North American International Auto Show. The Sportback concept, a luxury five-door fastback model, was regarded as a preview of two future models: the Audi A5 Sportback variant and the Audi A7...
- Audi A8Audi A8The Audi A8 is a four-door, full-size, luxury sedan car manufactured and marketed by the German automaker Audi since 1994. Succeeding the Audi V8, the A8 has been offered with front wheel drive or permanent four-wheel drive, with multitronic or tiptronic automatic transmissions — and in short- and...
- Audi Q5Audi Q5The Audi Q5 is a compact crossover SUV which was released by German automaker Audi for the 2009 model year. It is built using the new Audi MLP platform which debuted in the 2007 Audi A5 coupé. The Q5 is the second Audi model in the "Q" range, after the full-size Q7...
North American version
BMW
- BMW 1 SeriesBMW 1 Series (F20)On June 5, 2011 BMW officially introduced brand new 1 series codenamed F20. Like its predecessor, new car still features rear-wheel drive, 50:50 weight balance, a longitudinally-mounted engine and an advanced aluminum multilink suspension.- Engines :...
- BMW 3 SeriesBMW 3 Series (F30)The BMW F30 series is the sixth generation of the BMW 3 Series range of compact executive cars was unveiled on October 14, 2011 in Munich. It will be released as a 2012 model scheduled to go on sale in early 2012....
- BMW 5 SeriesBMW 5 SeriesThe BMW 5 Series is a mid-size / executive car manufactured by BMW since 1972. The car, now in its sixth generation, is sold in sedan and touring body styles....
- BMW 5 GT
- BMW 6 SeriesBMW 6 SeriesBMW 6 Series refers to several generations of executive coupés produced by BMW.The first was the E24, being derived from the E12 & E28 5 Series 4-door sedans. The E24 launched in 1976 to replace the 3.0CS & 3.0CSi . 14 years later, in 2003, BMW released the all new E63/E64 which was available as a...
- BMW 7 seriesBMW F01The BMW F01 is the current BMW 7 series that went into production in September 2008. The long-wheelbase model, codenamed BMW F02, is longer than the BMW F01.-Presentation:...
- BMW X3BMW X3 (F25)The BMW F25 is the 2nd generation model of the BMW Sports Activity Series X3, on sale since 2010. The 2011 X3 was unveiled on July 14, 2010...
- BMW X5BMW X5 (E70)The BMW E70 is the development name for the current X5 Sports Activity Vehicle . It replaced the BMW X5 in November 2006. It is manufactured alongside the new, 2008 BMW X6 at BMW's Greer, South Carolina plant in the USA and BMW's facility in Toluca, Mexico.-Design:The new generation BMW X5 is ...
- BMW X6BMW X6The BMW X6 is a mid-size luxury crossover released for sale in the second quarter of 2008 by German automaker BMW. The X6 was marketed as a Sports Activity Coupé by BMW...
Potential future vehicles to use it
- Maserati QuattroporteMaserati QuattroporteThe Maserati Quattroporte is a luxury four-door saloon made by Maserati in Italy. The name translated from Italian literally means "four doors". There have been five generations of the car, each separated by a period of roughly five years....
- Dodge DurangoDodge DurangoThe Dodge Durango is a full-size crossover SUV from the Dodge division of Chrysler. It was introduced in 1998 as a mid-size SUV, and as a replacement for the Ramcharger discontinued in the North American market in 1993, and was redesigned to full-size for 2004....
V6 - Dodge ChallengerDodge ChallengerThe Dodge Challenger is the name of three different generations of automobiles marketed by the Dodge division of Chrysler.The first generation Dodge Challenger was a pony car built from 1970 to 1974, using the Chrysler E platform and sharing major components with the Plymouth Barracuda. The second...
V6 - Jeep Grand CherokeeJeep Grand CherokeeThe Jeep Grand Cherokee is a Mid-size SUV produced by the Jeep division of Chrysler. While some other SUVs were manufactured with body on frame construction, the Jeep Grand Cherokee has always used a unibody chassis.- Development :...
V6
List of ZF 8HP variants
| name | max. gasoline torque (N·m) | max. diesel torque (N·m) | example | |
|---|---|---|---|---|
| 8HP30 | 300 | 300 | BMW 1 Series (F20) | |
| 8HP45* | 450 | 500 | BMW 5 Series (F10) | |
| 8HP70 | 700 | 700 | BMW 7 Series (F01) | BMW X5 (E70) |
| 8HP90 | 900 | 1000 | Rolls-Royce Ghost |
- Chrysler uses name 845RE - 8-speed, 450 N·m, Rear wheel drive