07 Nov '12, 2am

Nine speeds enough for transmissions, says ZF boss

Nine speeds enough for transmissions, says ZF boss

The nine-speed transmission might be where the race to add gears ends, ZF Friedrichshafen CEO Stefan Sommer said, according to a report by Automotive News Europe . He deemed nine speeds the “natural limit” because surpassing that number would add weight and complexity that cannot be offset by gains in fuel efficiency. “There is no hard line, but you have to consider the law of diminishing returns. The question is whether adding even more gears makes sense,” he told the Automobilwoche Congress in Berlin. Automobilwoche is Automotive News Europe’s German sister publication. ZF is expecting big sales gains for next year because Chrysler Group is adopting the German company’s eight- and nine-speed transmissions (pictured above) for mass-market models. There have been reports of General Motors’ and Ford’s collaboration on nine- and 10-speed transmissions, as well as of Hyundai ...

Full article: http://paultan.org/2012/11/07/nine-speeds-enough-for-tran...

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