The question is what are the drive systems of the modern urban buses of the future? Daimler Bus and Coach Unit's answer is: Diesel and electric drive systems. Although the diesel drive system is already highly developed, Daimler Buses sees potential for further optimisation – in coming years technical optimisation measures can lead to a further low-two-figure reduction in fuel consumption and CO2 emissions.
As things stand today, electric drive systems cannot fully replace the diesel engine yet. In order to change this, development of the electric drive system continues apace at Daimler Buses. The goal is to enable the Citaro E-CELL, powered by electric batteries, and the Citaro F-CELL with fuel cell drive, to reach the output and availability of a diesel-powered Citaro – and to do this at a cost adequate to the customers' economy. Both drive systems are to be based on a modular E-platform. Unlike today, they are to make possible emission-free driving at moderate costs and at the same time drive units tailored to their respective tasks.