Schwerin, Germany

Lieferung: 2001-2003

The Schwerin Transit Authority (Nahverkehr Schwerin GmbH) operates a tram network with a length of approx. 22 kilometres. With more than 100.000 passengers per day the tramway builds the backbone of the state capitol's public transport system. It is intended, that 28 new low-floor tramcars will replace the Tatra vehicles by the year 2003.

The tramcar-concept features high passenger comfort. Special interest was focused on reliable operation and high maintainability.

As a main component for this concept the roof container was developed of which each vehicle obtains two. In each of these roof containers two traction inverters are integrated, a static auxiliary converter as well as vehicle control components. These containers are supplied to the car builder completely wired and tested.

Each of the 4 selective propulsion units consists of a microprocessor controlled IGBT traction inverter with its braking resistor and motor-gear-unit. Due to this four times redundancy a high vehicle availability is guaranteed.

The vehicle is controlled by the Kiepe developed serial data bus, based on the CANopen protocol. As for the international standardization of the CANopen protocol, subsystems, e.g. door, brake and heating control, are easily integrated into the vehicle control.
All vehicle components can be examined by the Kiepe diagnostic aid on WINDOWS computer systems with detailed vehicle data logging. The registered data is transmitted to the depot by radio connection and can be used for maintenance purposes. The vehicle is heated and ventilated only by roof heaters, so that no under seat heaters are needed. The driver´s cab is air conditioned.
In addition to the exterior destination signs the passenger gets line information from TFT flat screen displays that can be used for information and commercial purposes also. A video monitoring in the vehicle gives security to the passengers.

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