Volkswagen continues its path of electrification but does not abandon the technological development of its traditional engines. To confirm this, the German brand presented the new generation of one of its best-selling petrol engines, the 1.5 TSI that arrives in Europe with the Evo2 version. The compact and modern four-cylinder unit will initially be available with an output of 110 kW (150 hp) with other variants to be introduced later. The T-Roc and T-Roc Cabriolet will be the first models to be delivered with the new engine while by the end of 2022 this engine will also be offered on other cars of the brand.
In the last evolutionary phase of the 1.5 TSI, development engineers have moved the three-way catalyst and gasoline particulate filter close to the engine into a single emission control module, thereby further improving the efficiency of the emission control system. As a further contribution to sustainability, this allows for a reduced use of precious metals in production and at the same time creates the basis for compliance with future emission standards. A key technological feature to reduce fuel consumption in the 1.5 l evo2 is the advanced active cylinder management system, ACTplus, a joint development of the Wolfsburg and Salzgitter sites. The goal of this new development was to improve the activation and deactivation of the two cylinders to ensure smooth engine operation. The combustion process in two-cylinder operation has been optimized, thus also making it possible to extend the operating range of the Active Cylinder Management system.
With ACTplus, the second and third cylinders do not activate when the engine is running at low and medium loads and speeds. This passage is barely noticeable. Efficiency is increased in the active cylinders, while the intermediate cylinders simply follow with virtually no leaks: they reactivate when the accelerator is pressed again. In addition to the variable geometry turbocharger, the 1.5 TSI also features other high-tech components: the high-pressure injection system generates a pressure of up to 350 bar, the plasma-coated cylinder walls reduce friction and the pistons with integrated cooling ducts allow optimized combustion and increase yield. TSI evo2 engines are designed to run on fuels containing ingredients produced from renewable energy sources, this also ensures they are ready to meet future requirements. Furthermore, they are suitable for various levels of hybridization; with a plug-in concept, for example, a system output of up to 200 kW (272 hp) is possible.
#Volkswagen #petrol #engine #efficient #greener