DUEWAG - BR 628 • Deutsche Bahn

Mini movie about the DUEWAG - BR 628 from the german railway (Deutsche Bahn)

The DB Class 628 is a twin-car, diesel multiple unit operated by the Deutsche Bahn AG for local passenger rail services.

Design:
(The following description is primarily related to the Class 628.4, but is largely valid for the other variants as well)
Each coach rests on two twin-axle bogies. Only the bogie at the close-coupled end of the coach is driven. Power transmission from the motor is achieved using a Voith hydrodynamic transmission system with a converter (Wandler) and a T 311r coupling. Up to Class 628, a T 320 double-converter transmission was used. Motor and transmission are suspended elastically under the lightweight coach body. The operating brake is an automatic compressed air KE disc brake with automatic load braking and electronic anti-skid protection. In addition, for rapid braking, electromagnetic rail brakes are used; these can also be activated separately if required.
Coupled running enables up to four coupled pairs of coaches to be driven from one driver's cab. The control panel resembles that of the DB's standard driving consoles. Safety equipment includes the dead man's switch system, Sifa, which is mandatory in Germany, as well as PZB 90 based on the I60R (Class 628.4) or I60 with ER24 recording device (Class 628.2) and train radio.
Class 628 units have proved to be reliable and economical in practice. Now that newer vehicles have appeared, though, passengers on the 628s will miss a number of refinements, especially air-conditioning, but also modern passenger information systems and easier, more accessible, disabled-friendly doors, because immediately behind the doors (one double or single door in the center and one single door next to each driver's position) there are two steps in order to reach low platforms. On some 628s, new passenger information systems with automatic announcements and displays for the next stop have been installed and in many regions ticket machines have also been fitted, as had been planned in the design.
Over the years the vehicles have not been completely free of technical problems, but the list of deficiencies is very short. For example, the coolant has a tendency to overheat on hot days if the radiators are not thoroughly cleaned. When traction conditions are poor, the 628 may not reach the speeds required by the timetable due to its low adhesive weight. Because the vehicles by today's standards are quite underpowered, its use on hilly routes results in long journey times. On newer vehicles such as the Class 641, the Desiro (642), the Talent (643 and 644), the LINT (648) or the Regio-Shuttle (650), which have partly replaced the 628s, two power cars have been used and the higher resultant costs accepted.

History:
The development of the Class 628 began as far back as the early 1970s, when the Class 795 and 798 railbuses were reaching the end of their estimated useful life. The Bundesbahn's central office (Bundesbahn-Zentralamt) in Munich, in cooperation with the Waggonfabrik Uerdingen, began with the concept of a Class 628 local, passenger, multiple-unit, that were to replace the railbuses, the accumulator railcars of Class 515. The new vehicles were also to be capable of being used on main lines, which required an increase in their top speed, stronger brake systems and greater comfort compared with the railbuses, but which were not to be more expensive to run than a railbus. In 1974, only 2 years later, Waggonfabrik Uerdingen and MaK demonstrated the prototypes of the two-unit Class 628.0 and also a single-coach variant, the Class 627, for use on routes with lower numbers of passengers. The vehicles were tested and proved themselves exceptionally well, even though the lack of the power from the engines was already apparent on occasions. Initially it did not go into production, because for political reasons local passenger rail services were just being reorganised and it was not yet clear, which and how many vehicles would be needed. So the Class 628 project stalled for almost four years.

Category:

Autos & Vehicles

Tags:

• Duewag
• BR
• 628
• Class
• DB
• Deutsche
• Bahn
• German
• Railway
• Diesel
• Multiple
• Unit
• Zug
• Triebwagen
• Eisenbahn
• Rail
• Way
• Road
• Railroad

[celeron03]

sind die überhauptnoch im planverkehr seh die so selten

[Metrolinkvideo]

ja, aber immer seltener, da viele wagen von den neuen Bombardier- Talent Triebwagen abgelöst werden.

Anzutreffen sind diese Triebwagen eher auf Nebenbahnstrecken.

[maz3507]

Fahren noch von neutstadt ( weinstaße ) nach grünstadt , und von frankental nach grünstadt !

[uweoehlke]

Fahren noch regelmäßig auf der Dreieich-Bahn zwischen Dieburg und Frankfurt (Main) Hbf.

[MediainRes]

@celeron03

bis 15.12.2013 sind sie noch im Planverkehr auf der NRW-RB47 (Solingen-Remscheid-Wuppertal)

[AllianceB95]

You have forgotten the so called Neigetechnik trains (Br610/611 and 612 Regio-swinger) also quite new (and maybe overpowered :P )

On the KBS 435 are driving around 628.4 togetter with the 612's. This is Until 2012 when if everything goes as planned the 612 trains will take over all Regional traffic.

[Chris77S10]

@celeron03 Natürlich, noch fast alle. Genauer gesagt: 628.4 noch alle außer Unfallfahrzeuge, 628.2 alle außer Unfallfahrzeuge und ganz wenige Abstellungen, 628.1 (3 Triebzüge) nicht mehr, 628.0 (22 Triebzüge) nicht mehr. Somit sind noch rund 450 628-Einheiten im Einsatz. Noch Fragen? :-)

[Vereister]

Ebenfalls noch im Plandienst sind die 628.4er auf der Heidebahn (KBS 123) von Hannover Hbf nach Buchholz Nordheide über Soltau (Han).

Teilweise jedoch auch nur von Bennemühlen - Buchholz/Nordheide mit Anschluss an die S-Bahn Hannover.

Jedoch werden sie auch Ende nächste Jahres gegen Triebwagen der Baureihe LINT 41 gewechselt werden.

[MediainRes]

so langsam naht zwar das Ende, aber sie fahren noch. Bspw. auf der RB47 Wuppertal-Solingen via Remscheid

[Mikosch2]

Ich finde die Wagen haben was. Zeitloses Design, bequeme Sitzmöglichkeiten...