BAE Systems and Cummins Inc. have announced plans to collaborate on the integration and certification of a B hybrid-compatible diesel engine and hybrid electric drivetrain for the transit market, targeted for launch in 2027. The new hybrid electric solution will continue to provide transit agencies with a proven and cost-effective technology that reduces fuel use and emissions. In this effort, BAE Systems will supply its electric drive hardware to interface with the engine and form a full hybrid electric drive, as well as provide engineering support and system integration expertise.

BAE Systems and Cummins have worked together to develop hybrid electric solutions for buses since 1994. This newly expanded collaboration underscores a shared commitment to offering more emission-reducing options in transit. Hybrid electric buses facilitate workforce development for training on high-voltage systems and do not require investment in extensive charging infrastructure.

In addition, hybrid buses with BAE Systems' electric drive systems allow for increased zero-emission capable solutions. This includes proven engine start and stop and geofencing technology, allowing a hybrid bus to automatically switch to full electric bus mode when entering designated green zones. BAE Systems has more than 25 years of experience developing and integrating electric power and propulsion systems for buses, boats, and heavy-duty vehicles.

The company has more than 16,000 propulsion systems in service on transit buses worldwide, including on hybrid electric, battery electric, and hydrogen fuel cell applications. Its electric propulsion technology is developed and serviced at its facilities in Endicott, New York and Rochester, UK.