Land Rover will be displaying a new 9-speed automatic transmission for use on its passenger cars and SUVs at next week's Geneva International Auto Show. The new ZF 9HP gearbox was developed by transmission specialist ZF with Land Rover being a lead partner in the project – or so the British company says.
Specifically designed for transverse applications, the ZF unit is rather compact in dimensions, as despite sporting three more gears, it is only 6mm (0.23 inches) longer and actually weighs 7.5kg (16.5 pounds) less than the outgoing six-speed transmission it will replace.
According to the British carmaker, increasing the number of gear ratios from six to nine provides significant improvement in fuel consumption and a corresponding reduction in CO2 emissions, while the smaller ratio steps help improve response during acceleration, shift quality, drive and refinement.
Furthermore, the lowest ratio in the new 9HP is far lower than the existing 6sp transmission, with the company stating that it is specifically designed for "off-road use, towing and more extreme on-road conditions like gradients and altitude, giving the driver a heightened sense of control".
Another special feature of the ZF 9HP is the adaptive shifting system that allows the software to learn from the driver's techniques "within seconds, sharpening up during brisk driving then slipping seamlessly into a more economical regime just as quickly when taking a more relaxed approach," according to Land Rover.
“We are extremely excited about the 9HP which has been tailored exactly to dovetail with the unique attributes of our vehicles,” said John Edwards, Land Rover Global Brand Director. “It will add another layer of performance, refinement and efficiency, further enhancing Land Rover’s world class abilities.”
Further details about the ZF 9HP's availability will be announced during Land Rover's Geneva Motor Show presentation.
Articles Source : Carscoop
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