The previous fuel tests were conducted in mid-2015. Since then, Scania has introduced a stop/start-function when the bus stop brake is activated and doors opened at bus stops. The bus can also switch to a fully electric mode with the diesel engine deactivated when certain conditions are met and diesel propulsion is not needed for, for example, operating the compressor for air to brakes.
These tests are performed according to the Standardised On-Road Test (SORT) cycle for city buses, as set forth by UITP, the international public transport organisation. Scania’s SORT tests have been supervised by the Netherlands Vehicle Authority, RDW.
The 19-percent fuel savings for an average of 29.49 litres/100 km concerns city bus traffic with an average speed of 12 km/h, in other words very dense traffic. With an average speed for 18 km/h the fuel consumption was 28.11 litres/100 km, 8 percent less than the 2015 figure and finally with an average speed of 25 km/h, the new fuel consumption figures were 28.2 litres/100 km, 4 percent under the 2015 figure.
“The Scania Citywide hybrid has demonstrated that it is well adapted for suburban to city centres bus routes,” says Anna Forsberg, Product Manager for City and Suburban Bus Applications at Scania. “We know that the growth of cities in the world is primarily not occurring in city centres but in expanding suburban areas and this bus is the perfect vehicle for these operations.”