Press Release

AVL and iwis to Develop Innovative VCR System

Cooperation Agreement Signed

Helmut List, CEO AVL, und Frank Wiemer, CEO iwis motorsysteme[1]

iwis motorsysteme GmbH & Co KG, a leading global supplier of chain drive systems for the automotive industry, and AVL List GmbH, the world's largest independent company for the development, simulation and testing of drive systems, announce the conclusion of a cooperation agreement. The aim of the cooperation is the series production of a two-stage hydraulic VCR system, developed by AVL, in order to implement geometrically variable compression ratios in internal combustion engines. Helmut List, CEO AVL: "In addition to low system costs, the OEM's primary focus is on easy integration into existing engine families at minimum investment."

The collaboration will cover the entire development and production chain, and will strengthen both of the companies' leadership positions for innovative automotive solutions. Because of its modular con-rod concept, the jointly developed Dual Mode VCS™ (Variable Compression Ratio System) is easy to integrate into existing engine architectures. This makes the Dual Mode VCS technology a cost-optimized solution to further reduce CO2 emissions in fleets.

The Two Partners


AVL draws on an extensive range of state-of-the-art development capabilities. iwis' role in the partnership is to support the joint development activities with its many years of experience in the large-scale series production of high-quality automotive components.

The iwis Group is a global technology leader for high-quality chain solutions and is one of the leading suppliers of precision chain drives systems and components for the automotive industry, as well as industrial applications in the mechanical and plant engineering, packaging, printing and food industries and materials handling. The iwis Group has 22 subsidiaries and offices all over the world and employs more than 1,400 people. In 2015, the company generated annual sales of €330 million.



Pia Linke, Communication iwis motorsysteme

Tel: +49 89 76909 1232


With more than 12,200 employees, AVL is one of the world's leading mobility technology companies for development, simulation, and testing in the automotive industry and in other sectors such as rail, marine, and energy. Based on extensive in-house research activities, AVL delivers concepts, technology solutions, methodologies, and development tools for a greener, safer, and better world of mobility and beyond.

AVL supports international partners and customers in their sustainable and digital transformation. The focus lies on the areas of electrification, software, AI and automation. In addition, AVL supports companies in energy-intensive sectors on their way to a greener and more efficient energy generation and supply.

Innovation is AVL's passion. Together with an international network of experts at more than 90 locations and 45 Tech and Engineering Centers worldwide, AVL is driving the future of mobility. In 2023, the company generated a turnover of 2.05 billion Euros, of which 10 % are invested in R&D activities.

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