Cummins powers over 4,500 ADL EURO VI buses

Cummins B4.5 Euro VI engine available with Stop/Start technology

Cummins is celebrating reaching a landmark number of Euro VI engine installations with Alexander Dennis Limited (ADL), supplying over 4,500 clean diesel engines to fleets across the UK.

The ADL buses are equipped with Cummins B4.5 and B6.7 engines, including integrated hybrid adapted and Stop/Start technology. These engines can offer improved fuel consumption of up to 8% and operate well within Euro VI emission standards. Stop/Start technology is used to eliminate engine idling at bus stops, traffic lights and pedestrian crossings, saving 10 minutes per hour of operations. Buses fitted with this technology produce zero emissions in stop phases as well as no engine noise, improving vehicle sociability for passengers and pedestrians

The Cummins Stop/Start engines provides a reduction of up to 5 tonnes of CO2 per bus each year, compared with conventional diesels. These power units are estimated to reduce fuel costs by up to £2,500 per bus each year.

ADL and Cummins have collaborated to create optimal custom-calibrated hybrid power solutions. Mapping torque at specific points on the duty-cycle, aligned to load-demands and the battery state-of-charge has ensured buses operate smoothly and efficiently. Smart engine logic interfaces communicate with the hybrid drivetrain to determine the most effective use of energy and maintains the exhaust aftertreatment at an optimum thermal condition. Developing this capability has established the Cummins application engineering team at the Darlington facility as the leading engine hybridization specialists in Europe.

Ashley Watton, Cummins Director – On-Highway Business Europe, said: “It’s a fantastic achievement to reach the milestone of 4,500 Euro VI installations with ADL – a clear demonstration that the on-highway power industry is moving forward. We are confident in delivering even cleaner diesel for the future and are continuing to innovate, with our latest engines performing well enough for ultra-low emission zones across the UK. Through our work with ADL, we’re helping fleets and local government deliver robust transport solutions that produce ever lower levels of CO2 and NOx emissions.”



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