What is EDC transmission (Efficient Double Clutch / Efficient Two Clutch Transmission?)? How does EDC transmission work ?….
EDC (Efficient Double Clutch / Efficient Two Clutch Transmission). The French automaker Renault has abbreviated the EDC transmission, a new generation of automatic transmissions. The EDC transmission was introduced for the first time in 2010 and is a dual-clutch transmission (Dual Clutch). It competes with Volkswagen’s DSG transmission.
The “E” The EDC abbreviation stands as “Efficient” . The electronically managed transmission responds to driver driving patterns to offer a dynamic and energy-efficient driving experience.
EDC is based upon the double clutch principle. This means that there is one clutch for each of the 1-3-5 gears, and two for the reverse. The next gear is ready when the second clutch is available. This allows for extremely quick shifting between one gear and the next, without reducing torque or jolting. This type of transmission doesn’t have a torque convertor. The ECU determines which gear to use based on various driving parameters. This includes optimizing road conditions, engine power, and gas consumption. Like any automatic transmission (+/-, the driver can manage the system at any moment.
The working principle is as follows: Synchromesh and transmission gears interlock. Each of these gears is connected to a clutch, and moves on two splined shafts. The command from the processor guides them. One of the gears can be found in the desired clutch while the other is in an upper clutch. This allows for smooth transition.
There are four types of EDC transmissions available today, each one suitable for all vehicle types. You can choose from two 6-speed and two 7-speed speeds. Two models have a dry clutch, which is designed for small engines that produce very little torque (less than 300 Nm). Two other models are equipped with a dry clutch to handle small engines that have less torque (less than 300 Nm). These types of transmission are found in models with high torque or power like Megane IV RS and Talisman.
EDC emits on average 30g/km less carbon dioxide than an automatic transmission. It was introduced in 2010 and is still considered to be one of the most reliable automated transmissions available. EDC transmissions have seen a significant increase in demand over the past few years.
Renault has used an old torque converter transmission for many years. It is very assertive with the EDC transmission. The EDC transmission can be used on vehicles with front wheel drive (with transverse engines placement). The EDC transmission cannot be applied to an engine that is located longitudinally.
Magna and German manufacturer Getrag developed the EDC automated transmission. The EDC automatic transmission was inspired by the DSG robotic transmission from the Volkswagen group, which is the first dual-clutch transmission. Experts agree that the DSG robotic transmission is more responsive in sporty driving than Volkswagen’s DSG gearbox but performs better in normal driving conditions because of its efficient and optimized management.
