SERES Power marked its debut at IAA MOBILITY 2025 with the global launch of its latest generation Super Range-Extender System, a new high-efficiency engine platform and an updated distributed e-drive system. More than 60 representatives from AVL, Bosch, Mahle, Schaeffler, Valeo, Stellantis, Mubea, Infineon and other leading suppliers, along with international media, attended the unveiling and technical salon. The company stated it will use the event as a springboard for further collaboration with supply chain partners in the joint development of intelligent power systems designed to deliver safer and more efficient mobility worldwide.

The new Super Range-Extender System is built on SERES’ Saiyi (C2E) range-extender architecture and RoboREX intelligent control technology. The C2E platform employs an All-in-ONE design strategy integrating engine, motor, control electronics and housing in a single compact package to optimise installation space and reduce system costs. RoboREX control moves away from passive operation to active, predictive energy management, enabling the engine to run at optimal efficiency across varying drive cycles.

System efficiency improvements are significant. Comprehensive fuel consumption is reduced by 15 percent and in-cabin noise perception by 90 percent. The unit delivers a specific output of 3.65 kWh per litre of fuel, with peak thermal efficiency reaching 44.8 percent. These performance measures place it among the most efficient mass-produced range-extender systems on the market.

Alongside the range-extender, SERES presented its next-generation distributed e-drive architectures. Options include dual-, three- and four-motor layouts, scalable to applications from compact Class A vehicles through to full-size Class D platforms. The technology is designed to improve traction dynamics and enhance driving refinement, with safety as a central design objective.

Range-extended electric vehicles continue to gain traction in premium segments as they address charging and range limitations without compromising convenience. SERES began investing in range-extender R&D in 2016 and has since filed more than 3,900 patent applications while collecting over 100 national and industry awards. The technology underpins models produced by AITO, which has sold more than 750,000 REEVs to date. The AITO 9 currently leads sales in the ¥500,000 luxury vehicle class in China.

SERES reports active collaborations with 25 global partners and in 2024 recorded revenues of 9.2 billion yuan, a 132 percent increase on the previous year. Production volumes for its powertrain products exceeded 600,000 units, while motors and electronic control systems surpassed 900,000 units.

Click here to read the latest issue of E-Mobility Engineering.