Safe driving.
Citaro

Safe driving.

The Electronic Stability Program (ESP®) is an active system for increasing driving safety and stability. It makes a noticeable contribution to reducing the risk of skidding during cornering or evasive manoeuvres. This is achieved by specifically controlling the braking forces on each individual wheel in critical, dynamic driving situations, for example if the bus approaches physical limits when cornering. At the same time, the engine output is reduced. A possible "breaking-out" of the bus is thus prevented by the finely metered braking within the limits of the physical possibilities.

Among other things, ESP® monitors the lateral acceleration of the bus. If, on long bends – such as motorway exits – or with rapid lane changes, the bus reaches a critical driving situation, the vehicle speed is automatically reduced so the bus returns to a situation of driving stability. The ESP® is comparable to that used in passenger cars, but is adapted for use in buses thanks to specific extended features.

Particularly in city traffic, dangers are sometimes unpredictable. This makes it even more essential to take proper measures to prevent an accident. Mercedes-Benz has equipped the Citaro urban bus with many safety features which help in mastering critical driving situations.

Road safety requires drivers to focus fully on traffic conditions. This is why special attention was given to the ergonomic driver's work area. In the Citaro, the driver has comfortable access to all controls and a perfect view of all the instruments. Further convenience is provided by the automatic transmission and the reversing camera. The Opticool windscreen and the separately controlled air conditioning system ensure that the driver is still able to concentrate even when it is hot outside.

A typical situation: a ball rolls onto the street and the children playing with it run out onto the road. A full brake application is necessary. Using targeted electronic brake actuation, the ABS system prevents permanent blocking of the wheels. Additional support is provided via the electro-pneumatic brake control EBS, thanks to which the stopping distance is substantially reduced as the brakes are actuated more quickly and precisely.

One of the core elements of the Citaro G is its turntable and the control system especially developed and thoroughly tested by Daimler researchers. The maximum angle between the two sections of the vehicle at full lock is 54.5 degrees. The unique ATC (Articulated Turntable Controller) is a new, highly sophisticated articulation limiter system especially developed by Mercedes-Benz. ATC sets new standards for the driving dynamics and safety of articulated buses:

The ATC driving dynamics control regulates the hydraulic damping of the articulation swiftly and, most importantly, perfectly in line with requirements, depending, among other things, on the steering angle, the articulation angle, vehicle speed and load. ATC has access to the data of the CAN Data Bus.

The result: Whereas the conventional high basic articulation damping leads to a strong tendency to understeer in curves and to increased tyre wear on the front axle, this articulation operates virtually freely in a normal stable driving situation and is damped only by the friction of the component elements.

In case of imminent danger, the correct reaction of the driver is just as important as the technical equipment of the vehicle. OMNIplus safety training courses provide the ideal basis. They focus among other things on practical familiarity with the behaviour of the vehicle in critical situations.

* Optional equipment