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English   Solaris hybridbus second Generation - how does it work?
17.11.2008 von admin

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Solaris hybridbus second Generation - how does it work?

Solaris Urbino 18 hybrid - second generation

In the bus industry, the technology of the Solaris Urbino 18 Hybrid bus is at the forefront of current developments. In our quest for the optimal solution, we decided to team up with General Motors-owned Allison Transmission, whose hybrid technology has been proven successful in hundreds of North American buses.

The Solaris Urbino 18 Hybrid is a real innovation when compared to buses with traditional diesel drive trains. To achieve the best results possible, Solaris Bus & Coach decided to use the hybrid system produced by Allison Transmission. Experience from the operation of several hundred hybrid buses in the United States clearly showed it to be the most established system on the market.

The Allison hybrid system combines the power of a diesel engine with two electrical engines. Advanced control electronics ensure that the diesel engine works at optimum speed at all times. Excess power is used to charge the bus’s batteries. The hybrid system also allows the recuperation of energy during braking. This is stored in batteries and re-used for subsequent acceleration of the bus.

The diesel component of the power train is made up by a 178 kW (242 PS) Cummins ISBe5 250B engine, which has a capacity of 6.7 litres. The second element of the power train is Allison Transmission’s Ep50 hybrid system.
As in the conventionally-powered Urbino, the drive train of the Solaris Urbino 18 hybrid bus is located in an engine compartment at the rear of the bus. It powers the third axle. Up to 52 seats make the Solaris Urbino 18 Hybrid the ideal bus for demanding city services. The total capacity of the Solaris Urbino 18 Hybrid is up to 161 passengers, depending on specifi cation.

The hybrid power train is complemented by batteries for energy storage and a Dual Power Inverter Module. These components are placed on the roof of the vehicle.



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