Integral (train)

The Integral is a diesel multiple unit (DMU) train type operated by Bayerische Oberlandbahn on regional services between Munich, Bayrischzell, Lenggries and Tegernsee. They were built by the now defunct Jenbacher Werke.[1]

Integral
Integral set VT 104 at München Hauptbahnhof in November 2018
ManufacturerJenbacher Werke
Entered serviceNovember 1998
Number built17 sets
Number in service17 sets
Formation5 sections per trainset
Operator(s)Bayerische Oberlandbahn
Specifications
Prime mover(s)Diesel-hydraulic
Bogies6 single wheelsets
Track gauge1,435 mm (4 ft 8 1⁄2 in)

Formation
Interior view

Each Integral unit consists of five sections, formed as follows.[2] The two "FGZ" sections are suspended by the end- and intermediate cars.[2]

CarEndwagen 2
end car 2		Fahrgastzelle
passenger section		Mittelwagen
intermediate car		Fahrgastzelle
passenger section		Endwagen 1
end car 1
Designation EW2FGZMWFGZEW1
Equipment Diesel-hydraulic motorTwo unpowered wheelsetsDiesel-hydraulic motor
Wheelsets 2none2none2

Technical specifications

The trains are powered by diesel-hydraulic motors.[2] One end car has all wheelsets powered, the other end car has only one powered wheelset. All six wheelsets use active radial steering.[2] The trains are able to run in multiple unit formation.[3]

History

The trains entered service in November 1998.[3] Following problems and malfunctions, the fleet was returned to its manufacturer in Jenbach, and was overhauled, which increased their reliability.[4]

One unit was used at the Test- and Validationcenter Wegberg-Wildenrath for testing of an anti-collision system by the Deutsches Zentrum für Luft- und Raumfahrt (DLR).[5]

The Integral trains are scheduled to be replaced by new LINT units from May 2020.[6] These LINT 54 units will be similar to those used by Bayerische Regiobahn between Munich and Füssen, as well as between Augsburg and Landsberg am Lech since December 2018.[1]

  • Anti-collision device experimentally fitted to an Integral unit

References
  1. Bauer, Alexander (August 6, 2018). "Bayern: Herbst für die Integrale und Talente bei der Bayerischen Oberlandbahn" [Bavaria: Autumn for the Integral and Talent trains at the Bayerische Oberlandbahn]. lok-report.de (in German). LOK Report-Verlag. Archived from the original on August 21, 2019. Retrieved August 21, 2019.
  2. Janicki, Jürgen; Reinhard, Horst (2008). Schienenfahrzeugtechnik [Rail vehicle technology] (in German). Bahn Fachverlag. pp. 67, 68. ISBN 9783980800259.
  3. Höger, Andreas (March 30, 2018). "Vor 20 Jahren nahm die BOB Kurs auf" [20 years ago BOB started operating]. Münchner Merkur (in German). Archived from the original on August 21, 2019. Retrieved August 21, 2019.
  4. Seeger, Heino (August 2010). "Die Bayerische Oberlandbahn" [The Bayerische Oberlandbahn]. regionale-schienen.at (in German). Verein Regionale Schienen. Archived from the original on August 21, 2019. Retrieved August 21, 2019.
  5. "Wissenschaftler stellen Anti-Kollisionssystem für Züge vor" [Scientists present anti collision system for trains]. Aachener Nachrichten (in German). May 11, 2010. Archived from the original on August 21, 2019. Retrieved August 21, 2019.
  6. Walter, Dirk (September 10, 2018). "Fahrzeugflotte wird modernisiert: 25 neue Züge für die Oberlandbahn" [Fleet gets modernised: 25 new trains for the Oberlandbahn]. Münchner Merkur (in German). Archived from the original on August 21, 2019. Retrieved August 21, 2019.
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