Cummins has confirmed that it has reached a Euro 6 milestone with a total of 2,000 hybrid-adapted engine installations in buses now operating across Europe to improve air quality and reduce the carbon footprint. Cummins ‘H’ versions of its B4.5 and B6.7 are configured to integrate with the hybrid driveline and provide a seamless stop-start function enabling the vehicle to save up to 12 per cent fuel consumption.
The high-volume hybrid bus success in the UK is represented by the Enviro400H from Alexander Dennis and the New Routemaster from Wrightbus, with both double-deck buses featuring Cummins B4.5-H. And a recent UK arrival is the Belfast ‘Glider’ rapid transit articulated hybrid bus from Van Hool which uses the B6.7-H.
Beyond the UK, single-deck hybrid buses can be found operating in European cities with either the four-cylinder 4.5-litre or the six-cylinder 6.7-litre Cummins, installed by bus manufacturers including VDL, Solaris, Vectia and Irizar.
“Cummins’ engine hybridisation expertise has played a key role in helping many bus manufacturers on the road to electrification and achieve remarkable results in terms of fuel savings, emissions reduction and vehicle sociability,” says Ashley Watton, Cummins director, on-highway business Europe. “Our hybrid engine installation work continues forward into 2019 with some exciting projects underway, including a double-articulated tram bus and regional coach. The efficiency of hybrid technology and engine optimisation continues to improve and will provide operators with the energy choice they need alongside clean diesel, natural gas and full electric solutions.”