Vitesco Technologies, the powertrain company of Continental, 9 - 12 At the CTI Symposium in Berlin on December 2019, the integrated electric motor for Plug-in Electric Vehicles (PHEV) unveiled its extremely low-cost and compact hybrid transmission solution for the first time .
Vitesco Technologies paves the way for truly economical hybrid vehicles with its know-how in the field of powertrain electrification. Hybrid vehicles have two power sources - an internal combustion engine as well as power electronic systems and a battery-powered electric motor - making this even more challenging. This additional technical infrastructure can raise the cost of a fully-powered high-voltage hybrid vehicle to a level that may prevent it from gaining high market share. If the cost of purchasing hybrid vehicles, which usually have an electric driving range of 50 km or more, was still not so high, these engines could play a significant role in reducing CO2 emissions from everyday driving.
Vitesco Technologies offers a solution. First and foremost, this solution includes a concept that redefines a number of functions previously carried out by the transmission, and the change in traditional thinking about powertrain design. The extended role of the electric motor in this solution from Vitesco Technologies is no longer limited to just drive power and energy recovery.
Ites It has not been possible to exploit the full potential of plug-in and full hybrid vehicles to reduce CO2 emissions so far, because they were inaccessible to many customers due to expensive power transmission systems, Steph said Stephan Rebhan, Technology and Innovation Manager, Vitesco Technologies. At this point, we have identified the potential of our DHT technology designed for cost-effective PHEVs. In order to reduce CO2 emissions, PHEVs are a form of electrical mobility that deserves much more success in the future. ”
Developed for low-cost PHEVs, DHT technology actually aims to allow the design of very compact automatic transmissions with an integrated high-voltage electric motor on the output side of the transmission. The cost-effective PHEV prototype from Vitesco Technologies offers the driver the standard of comfortable driving and shifting in plug-in hybrid vehicles at the same level as the traditional 6 automatic transmission. In contrast, a DHT transmission with Vitesco technology has only four mechanical gears, and there is no mechanical synchronization system, auxiliary hydraulic or starter clutch mechanism. The electric drive motor is synchronized with a starter alternator, which enables the internal combustion engine to run quickly and smoothly while starting forward (reverse gear in 1 and 2.). This redesign of the functions makes it possible to reduce the number of mechanical components of the transmission while saving weight and cost. This makes the DHT technology a natural choice for front cross-mounting on compact segment vehicles, where installation space can often be problematic. Combined with a low-cost port injection gasoline engine and a full electric drive, for example with DHT technology, the full electric drive mode paves the way for economical, comfortable and zero-emission vehicles suitable for everyday use. Developed for cost-effective PHEVs, the DHT can achieve 120 km / h in full electric mode and 160 km / h in hybrid mode.
This new PHEV solution is based on Vitesco Technologies' extensive knowledge and system expertise in general powertrain design and electrical drive technology. For example, despite the simple jaw clutch design, the smooth and quiet shifting feature offered by the DHT technology highlights the high dynamic capability of the electric motor functions that make the most of this control technology. The DHT technology for low-cost PHEVs marks a new step in Vitesco Technologies' systematic electrification strategy. Han In order to comply with the EU's CO2 emission limits in the future, it will be especially important to control the costs that currently prevent hybrid electric motors from gaining more market share, Reb Rebhan says.