12/6/2023 0 Comments Dual clutch transmission truck![]() It incorporates Eaton’s lengthy experience with heavy duty transmissions, plus the latest automatic transmission technology. The 7-speed Procision grew out of a “clean sheet” design approach, Alison Thomas, Eaton’s global product strategy manager for medium duty transmissions, informed me. I never turn down an opportunity to get hands-on with new technology. ![]() In late November, the company invited me to the Eaton Proving Grounds in Marshall, Mich., to try one out. It is the first dual clutch transmission for Class 6 and 7 trucks (19,501 lbs to 33,000 lbs gross vehicle weight) in North America. Thanks to I-Shift Dual Clutch power-shifting, there is less risk of getting stuck on slippery or uneven roads, such as when hauling timber in a forest.Eaton, in early September, introduced Procision – its new line of medium duty dual clutch transmissions. I-Shift Dual Clutch also makes a big difference with livestock or tanker operations, since the seamless gear changes means less movement in the cargo itself. It is particularly effective in long haul operations and conditions that require a lot of gear changing, for instance on hills, roads with lots of twists and turns or when driving through cities with plenty of roundabouts and traffic lights. The result is more relaxed and safe driving,” says Drewsen. Power-shift gear changes, where there is no interruption in power delivery, means it is easier to keep up with traffic, especially on difficult stretches of roads. The heavier the transport and the tougher the operating conditions, the more you will gain with I-Shift Dual Clutch. “For trucks, this gearbox will truly make a major difference to driveability. Transmissions with dual clutches are already used in cars, but Volvo Trucks is the first manufacturer in the world to offer a similar solution for series-produced heavy vehicles when it will be available on certain Volvo FH models from autumn 2014. ![]() As a result, engine torque is maintained and driving comfort is significantly improved,” says Astrid Drewsen, product manager for drivelines at Volvo Trucks. ![]() With dual clutches, gear changes take place without any interruption in power delivery. When one gear is selected in one gearbox, the next gear is already prepared in the other. “When driving it feels like you have access to two gearboxes. It is based on I-Shift, but the front half of the gearbox has been redesigned with entirely new components. It is the clutch that determines which of the gears is currently active. I-Shift Dual Clutch is a transmission consisting of two input shafts and a dual clutch, meaning two gears can be selected at the same time. Here at Volvo Trucks we are immensely proud to be able to offer this innovation to our customers,” says Claes Nilsson, President of Volvo Trucks. “In situations that require a lot of gear changes, for instance on hilly or windy roads, I-Shift Dual Clutch brings an entirely new dimension to truck driving. For the driver, the result is more comfortable and efficient progress on the road. Thanks to power-shift gear changes torque is maintained without any interruption in power delivery and, as a consequence, the truck does not lose any speed during gear changes. News from Volvo: Volvo Trucks is launching its I-Shift Dual Clutch – the first automated transmission for heavy vehicles with a dual clutch system.
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