Transmission specialist Getrag has begun production of the new seven-speed 7DCT300 dual-clutch transmission. (Earlier post.) Getrag will supply European customers with the new transmission from its plant in Neuenstein, Germany. For the Asian market, the transmission will also be produced in China starting in 2017. Initially, the modern automated transmission will be used in the new Renault Espace, and further models and brands will follow.
Based on a new, modular platform, the 7DCT300 is designed for a maximum torque of 300 N·m (221 lb-ft). Smart Actuation, an intelligent power-on-demand actuation system, adds to the high efficiency of the 7DCT300. Its use enables power consumption of under 40W to be achieved—less energy than a light bulb and 3.5% more efficient than second generation DCTs.
The 7DCT300 features a wet dual clutch, electro-mechanical gear actuation and new electro-hydraulic clutch actuation, enabling significant reductions in fuel consumption compared to earlier transmissions. The oil in the 7DCT300 is fill-for-life, which results in considerable advantages in terms of maintenance and running costs.
Hybrid versions of this transmission can be used in vehicles without major changes in installation space, starting in 2016. OEMs can therefore produce conventionally powered and hybrid vehicles on the same production line. Applications extend from 48V mild hybrids up to 360V plug-in hybrids.
The launch of the 7DCT300 for the Renault Espace is only the beginning. With already over 100 planned applications, the 7DCT300 has the greatest potential in our company's history. We are very happy that this initial launch is running so smoothly and completely to plan.—Bernd Eckl, Getrag Executive Vice President for Sales