The new eCitaro is based on Mercedes-Benz’s Citaro model
Mercedes-Benz has unveiled the new fully electric eCitaro. The new bus uses innovative components only now available for the first time for the eCitaro to achieve a hitherto unknown degree of energy efficiency.
The performance of the eCitaro meets most of the requirements of the transport companies even at launch. It is also already prepared for the battery technology of the future.
The platform for the new Mercedes-Benz eCitaro is the best-selling Citaro, which has sold over 50,000 units worldwide. With its wide range of low-emission and now locally zero-emission city buses, it provides the answer to issues surrounding environmentally friendly local public transport services.
The powertrain of the new eCitaro is based on the proven and optimised ZF AVE 130 electric portal axle with electric motors at the wheel hubs. The peak output of the motors is 2×125 kW, while torque is 2×485 Nm. It is an inherent feature of such motors that this is fully available right from the start, ensuring appropriate dynamic performance even with a full complement of passengers.
Lithium-ion batteries with a total capacity of up to 243 kWh provide the power. The batteries are split between up to 10 modules, each supplying around 25 kWh. The basic equipment sees two battery modules on the vehicle roof plus four fitted at the rear. Depending on customer requirements, another two or four battery modules are mounted on the roof of the eCitaro.
With the full complement of batteries, the eCitaro with standard equipment weighs around 13.44 t. In conjunction with a gross vehicle weight rating of 19.5 t, this corresponds to a payload of more than six tonnes or around 88 passengers – in line with what is needed in practice even during rush hour.
The eCitaro’s charging technology also allows it to adjust to the individual wishes and requirements of the transport operators. For the start of series production, plug-in charging is envisaged. To this end, the city bus features a socket for a Combo-2 plug above the front wheel arch on the right-hand side of the vehicle in the direction of travel.
If opportunity charging is required to extend the range, there will also be an option to charge the eCitaro via a current collector on the roof in future. This option will be gradually phased in once series production has started.