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Volkswagen 1.5 TSI evo2: Higher efficiency and lower emissions for the world’s engines

Wolfsburg (Germany) – Higher efficiency and lower emissions: Volkswagen has enhanced its best-selling 1.5 TSI petrol engine. Now introducing the latest generation, Volkswagen TSI evo2, in the first model in Europe.The engine reduces both fuel consumption and CO22 emission. The compact, ultra-modern four-cylinder engine will initially offer an output of 110 kW (150 PS). However, more variants of the 1.5 TSI evo2 will follow. The T-Roc and T-Roc Cabriolet will be the first models to feature the new engine. TSI evo2 will also be introduced to other models at the end of the year.

  • New high-tech power unit combines high efficiency and powerful performance
  • Introduced in the T-Roc for many Volkswagen models with enhanced base engine with 110 kW (150 PS)1 and the T-Roc Convertible2
  • The new engine is also designed for fuels with renewable components
  • Volkswagen compact TSI engines installed in factories around the world

“The 1.5 TSI is a key pillar of Volkswagen’s engine range as it powers many models around the world, from the T-Cross3 all the way up to the Passat variant4. We are continually improving our compact four-cylinder unit. It now offers significant fuel consumption advantages and a very dynamic response,” said Thomas Ulbrich, member of the Volkswagen brand management board, who is also responsible for “technical development”.

“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.”

Thomas Ulbrich, member of the Volkswagen Board of Management

What to expect from the Volkswagen 1.5 TSI evo2

An overview of the new features of the EA 211 evo2. In the latest evolution of the 1.5 TSI, development engineers have moved the three-way catalytic converter and gasoline particulate filter into a single emission control module close to the engine, further increasing the efficiency of the emission control system. as a further contribution to sustainability. This can reduce the use of precious metals in production, while laying the groundwork for compliance with future emission standards.

A key technical feature to reduce fuel consumption in the 1.5 l evo2 is the enhanced Active Cylinder Management system. It is ACTplus – a joint development project of Wolfsburg and Salzgitter. This new development focuses on improving the activation and deactivation of both cylinders to ensure smooth engine operation. The combustion process in twin-cylinder operation is optimised, so that the operating range of the active cylinder management system can also be extended. With ACTplus, the second and third cylinders do not fire when the engine is running at low to medium loads and speeds. This transformation is hardly noticeable. The efficiency of the active cylinder is increased, with little to no losses in the intermediate cylinder. When the accelerator is pressed again, they are reactivated.

In addition to the variable geometry turbo, the 1.5 TSI also features other high-tech components. A high-pressure injection system generates pressures up to 350 bar, plasma-coated cylinder walls reduce friction, and pistons with cast cooling ducts optimize combustion and increase efficiency.

Future-oriented concept

TSI evo2 engines are designed to use fuels with components made from renewable energy sources – this also ensures they are ready for future requirements. In addition, they are suitable for various hybridization levels; for example, system powers of up to 200 kW (272 PS) can be achieved with the plug-in concept.

The engine complements the electrification strategy.Volkswagen is “going to zero” – with its acceleration strategy, the company is rapidly advancing its electrification offensive. By 2030, Volkswagen plans to achieve a 70 percent sales share with its electric models. At the same time, important internal combustion engines are receiving further improvements. There are two reasons for this: First, it will enable them to comply with future global emissions standards, such as Euro 7.

Second, Volkswagen’s internal combustion engine models remain popular in many markets — especially in markets where EVs have been slow to develop due to a lack of charging infrastructure.

World Engine – the most advanced in a decade

Since 2012, the compact TSI engines of the EA 211 series (EA = German acronym for Development Order) have been worldwide bestsellers. Volkswagen produces more than 4 million engines annually at 11 locations on three continents. When they debuted in 2012 – in three capacity variants – they already incorporated many high-tech features. Strictly lightweight construction saves up to 21kg compared to its predecessor.

TSI-evo combustion process

1.5 l TSI evo1 The already familiar TSI-evo combustion process is also used in the TSI evo2 generation. In addition to optimizing combustion chamber cooling, the decisive factor is again the symbiosis of the Miller cycle (early closing of the intake valves at high compression) and VTG turbocharging technology (variable turbocharger geometry). A key factor for the next step is first and foremost the possibility of developing and optimizing the relevant engine software components in-house at Volkswagen.

1T-Roc 1.5 TSI (110 kW/150 PS), fuel consumption in l/100 km (NEDC): 6.8–6.2 urban, 4.4 outside, 5.3–5.0 combined; CO2 Emissions in g/km (combined) 120–115; Efficiency Class: B
2T-Roc Cabriolet 1.5 TSI (110 kW/150 PS), fuel consumption in l/100 km (NEDC): urban 7.0–6.4, suburban 4.7, combined 5.6–5.4; CO2 Emissions in grams/km (combined) 127–122; Efficiency class: BA
3T-Cross 1.5 TSI (110 kW/150 PS), fuel consumption in l/100 km (NEDC): urban 5.8, suburban 4.6, combined 5.1; carbon monoxide2 Emissions in g/km (combined) 116; Efficiency class: B
4Passat Variant 1.5 TSI (110 kW/150 PS), fuel consumption (l/100 km) (NEDC): urban 6.3-6.1, suburban 4.9-4.6, combined 5.3-5.2; carbon monoxide2 Emissions in g/km (combined) 122-120; Efficiency class: BA

Volkswagen passenger car

The Volkswagen passenger car brand is present in more than 150 markets around the world. It also manufactures vehicles at more than 30 locations in 13 countries. In 2021, Volkswagen will deliver around 4.9 million vehicles. These include best-selling models such as the Polo, T-Roc, Golf, Tiguan or Passat, as well as the successful all-electric models ID.3 and ID.4. Last year, the company delivered more than 260,000 pure electric vehicles (BEVs) to customers around the world, more than ever before. Currently, around 184,000 employees worldwide work at Volkswagen. In addition, there are more than 10,000 trading companies and service partners with 86,000 employees. With its acceleration strategy, Volkswagen continues to advance its further development into a software-oriented mobility supplier.

Volkswagen in press release

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