2013 NEW ZF 9HP Transmission - How It Works

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The ZF 9HP is a nine-speed automatic transmission, designed but not built by ZF Friedrichshafen AG subsidiary ZF Getriebe GmbH in Saarbrücken.[1] As a front-transverse transmission, it will debut in front-wheel drive and All-wheel drive vehicles. ZF touts the new design as being able to save an average of 16% in fuel usage over current 6-speed automatic transmissions. Tentative ratio spread is 9.84:1. Transmission will have a torque range between 280 and 480 Nm.

The 9HP is masterfully packaged and despite the extra three gear ratios is only 0.24 inches (6mm) longer and actually weighs 16.5 lbs (7.5kg) less than the outgoing six-speed transmission. The compact packaging is achieved by using a number of innovative design features: A new compact hydraulic vane-type pump, two patented dog clutches replacing bulkier conventional clutch packs, and a nested gear set.

Land Rover will demonstrate the world's first nine-speed automatic transmission for a passenger car at the 2013 Geneva Motor Show.

[cruisertechgt]

ZF leader in auto transmissions. congrats

[LBB]

9 after 2 years 10 then 11, stupid thing

[Vra]

Garbage in every vehicle that has this transmission