23 Sep 2016


During the recent IAA Commercial Vehicles 2016 in Hanover, Polish bus manufacturer Solaris unveiled further vehicles of their new-generation. The hybrid version of the new Urbino, and the new Urbino powered with CNG were exhibited together with the new Solaris Urbino electric. The new generation cutting-edge battery-buses had its premiere at Busworld exhibition in Kortrijk in 2015, and have already been ordered by operators from Hanover, Hamburg and Tampere.
The hybrid novelty is equipped with a serial hybrid drive by U.S. producer BAE Systems – the HybriDrive.

This technology is based on an electric engine fuelled with power from a power storage facility. This, in turn is charged with the help of a generator using a low-capacity Cummins diesel engine (a 210 HP Cummins ISB4.5E6). This environmental-friendly, partially electric drive allows to significantly reduce fuel consumption and pollutant emission into the atmosphere.

The new hybrid Urbino 12 Solaris offers also the possibility to install a Start/Stop system, which allows to completely turn off the diesel engine during stopovers and which allows to leave it in zero-emission mode. Furthermore customers can opt for an Arrive-and-Go system which additionally turns off the diesel engine when the bus is approaching a stop. Thanks to those solutions the hybrid bus of Solaris resembles an electric bus in functionality and according to various tests it is able to save up to 20 percent of the fuel needed by similar vehicles with a conventional drive. And to top it off, the engine is so quiet that the noise level can be reduced significantly, which comes in handy in particular in overcrowded city centres,

The first edition of the 12-metre Urbino CNG uses the advantages of the new-generation Solaris, such as its light frame and state-of-the-art driveline, as well as the commodious and comfortable passenger space.

The drive unit of the new Urbino 12 CNG is a Cummins ISLG engine producing 320 horsepower and meeting the Euro6 norm, and in the presented vehicle it is coupled with a Voith Diwa 6 gearbox. What is new about this model is the installation of a CNG cylinder. Five composite tanks are fitted alongside rather than crosswise on the roof, as had been the case in the former Urbino version. The new gas tank construction technology allows to reduce the weight by up to 80 kilograms depending on the configuration. What is more, thanks to locating it alongside the bus, it was possible to reduce the number of cylinder valves. The model presented at the fair boasts gas tanks of a volume of 1575 l. The producer offers also bigger cylinders, containing 1875 litres, or smaller, 1260-litre ones. Thanks to this option the bus can be tailor-made to the needs of carriers.

The battery-powered Solaris Urbino is equipped with Solaris high energy batteries which deliver 240 kWh and comply with the most rigorous safety standards. The set has been divided into six separate packs of 40 kWh each. 160 kWh are located at the rear of the vehicle, while the rest is mounted on the roof, over the first axle. The new Urbino 12 electric has been fitted with an innovative pantograph charging system. 450 kW power allows for a quick recharge of the batteries on route. A traditional plug-in connection has also been provided and can be used for overnight charging at the depot.

Emission-free and clean, the electric bus in Solaris’s new design constitutes the most innovative item in the Solaris portfolio. The benefits of the new Solaris construction such as light and rigid bodyframe, skin-on-skin panels assembly as well as ergonomic, spacious interior in combination with an exquisitely quiet and clean motor result in this extraordinary vehicle.

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