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On April 15, General Motors and Ford Motor Co., the two giants of the U.S., announced the signing of an agreement to jointly develop a new series of fuel-saving transmission systems, including nine-speed and ten-speed automatic transmissions, to improve the fuel economy and power performance of their vehicles. .
General Ford teamed up
Under the agreement, GM and Ford will jointly develop a new generation of advanced technology nine-speed and ten-speed automatic transmissions for applications such as cars, crossovers, SUVs, and trucks, including precursors, rear drives, and other derivative models. However, the two companies did not disclose the details of the new transmission, but said they would choose the right time to release the main parameters to the outside world.
In September last year, informed sources disclosed the intention of GM and Ford to cooperate in the development of nine-speed and ten-speed gearboxes, and pointed out that General Motors will lead the development of a nine-speed gearbox for front-wheel-drive models, while Ford Motors will Will lead the development of a ten-speed gearbox for rear-wheel drive models, including pickups, SUVs and high-performance cars.
At the time, an informed supplier stated that the two companies had started cooperation on this project since the beginning of 2012. Currently, the two gearboxes are still in the design stage, and it is difficult to put into production before 2015. It is expected that the new project will save GM and Ford a lot of money in engineering design and product development. Both parties will combine the new gearbox and their respective engines from both hardware and software.
According to Ford and GM's production forecasts, informed suppliers said that by 2018, GM and Ford will jointly develop nine-speed and ten-speed transmissions with an annual production and sales volume of 1 million units.
The US auto industry is facing tremendous pressure to reduce fuel consumption. On August 28 last year, the U.S. government announced the introduction of the CAFE (Corporate Average Fuel Economy) for the 2025 Corporate Average Fuel Economy Regulations, which requires that the average fuel economy of new vehicles in 2025 should reach 54.5 miles per gallon, which is equivalent to approximately 100 kilometers and 4.3 liters of fuel consumption. The current vehicle level has almost doubled. According to data provided by the US Environmental Protection Agency, the average fuel economy of new vehicles in the US market in 2012 was 23.8 mpg.
The cooperation between General Motors and Ford in the drive system can be traced back to 2002, this time can be seen as further expansion. At the time, GM and Ford jointly developed a series of six-speed automatic transmissions for front-wheel drive models.
The six-speed gearbox jointly developed by the two companies includes the Ford 6F and GM 6T70 transmissions, and is equipped with millions of models covering Ford Fusion, Maverick, Chevrolet Malibu and Cruze.
At present, major car manufacturers and transmission component companies are committed to the development of new gearboxes. Several seven-speed to nine-speed gearbox products have begun to enter the market.
As one of the Big Three in Detroit, the Chrysler Group has established a joint venture with ZF Friedrichshafen to provide an eight-speed automatic transmission for the Chrysler 300, Dodge Charger sedan, Jeep Grand Cherokee SUV, and 2013 Ram pickup. Chrysler also plans to introduce a production license for a nine-speed automatic transmission from ZF to be installed in the new Freestyle light car that will be put into production next month.
Audi, BMW and Lexus currently provide eight-speed transmissions for their models, while Mercedes-Benz offers seven-speed transmissions and plans to develop a nine-speed transmission. This fall, GM’s luxury brand Cadillac will use the eight-speed transmission from Japan’s Aisin Seiki for the first time, with CTS and XTS models.
In September 2011, Hyundai President Park SeongHyon said that the company is developing a new ten-speed automatic transmission, which is expected to be put into use in 2014; the transmission will be equipped with luxury models, which may include modern Genesis and Equus.
Mike Omotoso, analyst of LMC Automotive's powertrain industry, analyzes that the increase in gearbox progression mainly contributes to fuel economy and power output smoothness. “The load that the engine must bear is reduced, so it is no longer like having low-grade. Several gearboxes are spinning as hard as they are.†However, considering that the increase in the number of stages will bring complexity and difficulty in assembly, it is unlikely that the passenger car transmission will exceed ten speeds.
Eric Fedewa, head of global powertrain and component forecasting at IHS Automotive, believes that advanced gearboxes with higher levels “provide consumers with better driving experience and fun. This is a Important factors, in addition to improving fuel economy and emission levels."
LMC expects that by 2018, one-third of the North American market will use eight-speed, nine-speed, and ten-speed transmissions. According to estimates, of the vehicles produced in North America this year, 850,000 will use an eight-speed gearbox, 80,000 will use a nine-speed gearbox, and the total vehicle sales will be about 15.8 million; by 2018, there will be 2.5 million eight-speed transmissions. There are 2.75 million nine-speed transmissions and 1.3 million ten-speed transmissions. The total sales volume of the auto market is estimated at 18.4 million.
GM and Ford Sign Agreement to Jointly Develop Nine-Speed ​​and Ten-Speed ​​Transmissions