Volkswagen Introduces A New-Generation Engine

Photo credit: Volkswagen 

Volkswagen has just introduced a new-generation 1.5-liter turbocharged gasoline engine in the TSI evo2. According to the German carmaker, this engine will outshine its predecessor in terms of fuel consumption and CO2 emissions. Volkswagen has enhanced its bestselling 1.5 TSI gasoline engine and is now introducing the latest generation, the TSI evo. The compact four-cylinder engine will initially be available with an output of 110 kW (150 PS), and further variants of the 1.5 TSI evo2 will follow. The T-Roc and T-Roc Cabriolet will be the first models to be delivered with the new engine. The TSI evo2 will also be introduced successively in other models by the end of the year.

 In the latest evolutionary stage of the 1.5 TSI, the development engineers have moved the three-way catalytic converter and gasoline particulate filter close to the engine in a single emission control module, thereby further improving the efficiency of the emission control system. As a further contribution to sustainability, this permits reduced use of precious metals in production and at the same time creates the basis for compliance with future emission standards.

“The 1.5 TSI is a key pillar of the Volkswagen engine range because it powers many models worldwide, from the T-Cross through to the Passat Variant. We have continuously enhanced the compact four-cylinder unit. It now offers significant fuel consumption benefits and a very dynamic response. The highlights of the latest version include Active Cylinder Management ACTplus, an emission control module close to the engine and the modern TSI-Evo combustion process.” Said by Thomas Ulbrich, Member of the Board of Management of the Volkswagen brand, responsible for Technical Development.

A key technological feature for reducing fuel consumption in the 1.5 l evo2 is the enhanced Active Cylinder Management system, ACTplus. The focus of this new development was on improving activation and deactivation of the two cylinders in order to guarantee smooth engine running. The combustion process in two-cylinder operation was optimized, allowing the operating range of the Active Cylinder Management system to be extended. Alongside the variable-geometry turbocharger, the 1.5 TSI also features a high-pressure injection system generating a pressure of up to 350 bar, plasma-coated cylinder walls to reduce friction, and pistons with cast-in cooling ducts to allow combustion to be optimized and efficiency increased.

A key factor for this next step was above all the possibility of developing and optimizing the relevant engine software components internally at Volkswagen. The TSI evo2 engines are designed for operation with fuels containing ingredients manufactured from renewable energy sources. In addition, they are suitable for various hybridization levels; a system power of up to 200 kW is possible with a plug-in concept, for example. 

By 2030, Volkswagen plans to achieve a sales share of 70% with its electric models. However, the important combustion engines are receiving further enhancements. The two reasons are that it will allow compliance with future worldwide emission standards and the combustion engine models from Volkswagen are still popular in many markets, particularly where electric mobility is establishing itself only slowly due to the lack of charging infrastructure. Each year, Volkswagen builds more than four million of them at eleven locations on three continents. Volkswagen is on the “way to zero” with its accelerate strategy, the company is driving forward its electrification at a fast pace. 

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