Cummins Battery Electric System
Cummins Battery Electric System is an electric drivetrain for buses that can be configured as a fully-electric system or range extended electric hybrid system. In April 2017, Cummins unveiled their battery-electric technology in a concept Class 7 electric truck. They unveiled their technology for transit buses at the 2017 American Public Transportation Association Expo and 2017 Busworld Kortrijk. Cummins and Gillig announced a partnership to develop and offer the electric drivetrain in Gillig buses.[1][2]
The standard lithium ion battery enclosure provides a 70 kilowatt-hour capacity with up to eight enclosures available per vehicle. This allows for a range of up to 360 kilometres. A 350 kilowatt (peak) and 3,400 Nm (peak) motor is provided. In a range extended configuration, a 2.8 litre or 4.5 litre engine recharges the batteries when they reach a low state-of-charge.
In May 2018, Cummins debuted their new battery lineup: the BP74E (74 kWh) and BP35E (35 kWh) high voltage systems, as well as the BM44E (4.4 kWh) and BM20E (2.0 kWh) low voltage systems.[3]