Ford and GM are spreading the load on ratio increases

摘要

Ford and GM are developing nine-and 10-speed automatic transmissions together. The modular technologies will be used in transverse and longitudinal applications, helping to reduce fuel consumption and CO_2 emissions. The wider ratio spread offered by the greater number of gears will improve launch performance and make cruising more efficient, The transmissions are being developed in the US but could migrate to European applications. Ford's chief engineer for transmissions and drivelines, Craig Renneker, said: "We will each use our own control software to ensure that each transmission is carefully matched to the brand-specific vehicle DNA for each company."