Land Rover will demonstrate the latest in a long line of technical firsts at the 2013 Geneva Motor Show with the announcement of the world’s first 9-speed automatic transmission for a passenger car. The ZF 9HP transmission is specifically designed for transverse applications, and is one of the most efficient and technically advanced transmissions ever used in a production vehicle. Land Rover is the lead partner on the project, working together with ZF who are widely recognised as the world leader in transmission technology. The 9HP is a masterpiece of packaging and despite the extra three gear ratios is only 6mm longer and weighs 7.5kg less than the outgoing six-speed transmission. The small package space is achieved by a number of innovative design features including a new hydraulic vane-type pump which also contributes to improved efficiency, two, patented, dog clutches replacing bulkier conventional clutch packs, and an Intelligently Nested gear set. Land Rover was chosen by ZF, one of the world’s most technically advanced transmission manufacturers, to be the lead partner on the 9HP and Land Rover engineers have worked in partnership with ZF engineers to jointly develop the transmission to suit the brand.
Range Rover Evoque might get 9-speed transmission
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