WSW GTW Generation 15

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Generation 15 / Gtw15
Generation 15 in the Wagenhalle in Vohwinkel
Generation 15 in the Wagenhalle in Vohwinkel
Numbering: 01-31
Number: 31 (supplied)
Manufacturer: Vossloh Kiepe
Year of construction (s): 2015/16/17
Length: 24 m
Height: 2.7 m
Width: 2.2 m
Trunnion Distance: 7,645 mm
Bogie axle base: 1.28 m
Smallest bef. Radius: 9 m
Empty mass: 25.6 t
Top speed: 65 km / h
Continuous output : 4 × 75 kW

Acceleration: 1.3 m / s²
Braking delay: 1.3 m / s² (E-brake)
Power system : 750 V =
Power transmission: Busbar
Brake: Electromotive brake , hydraulic brake
Train control : European Train Control System (ETCS)
Seats: 42
Standing room: 88

As WSW GTW generation 15 new are vehicles (GTW = GTW) the WSW mobil for the Wuppertal suspension railway called. They are manufactured by the Düsseldorf company Vossloh Kiepe and have been in use since December 18, 2016. They replace the previous suspension railways of the type GTW 72 .

From a technical point of view, Generation 15 is a new development. A particular advance is the use of three-phase asynchronous motors with the option of energy recovery during braking. The electronic equipment of the suspension railway has been fundamentally changed, and the train control system ETCS is being installed. The exterior design of the new suspension railways is based on the GTW 72, while the interior design has been specially revised.

So far, the vehicles of the Wuppertal suspension railway with were GTW for G élénk T rubbed W agen and called the year of commissioning of the first rail car. Since this has not yet taken place, the Wuppertal public utilities still call the vehicle “The new suspension railway generation.” The designation GTW 2014 was used by the Prose engineering office involved in the development . In September 2015, the name "Generation 15" was first found on a WSW website. Operationally, the car will continue to be referred to as the GTW 2014. On December 18, 2016, the cars 01-05 were put into operation and drove with passengers for the first time.

history

Procurement

In May 2010, the Berlin designer office büro + staubach was commissioned to create a design concept , which, among other things, had designed the exterior design for the Düsseldorf NF10 and NF8U tramcars as well as for the Variobahn vehicles in Munich, Graz, Potsdam and Nuremberg. The design and the specifications were presented in September 2010. On November 10, 2011, a contract was signed with Vossloh Kiepe for 31 new vehicles; the order volume is 122 million euros, 20 million euros of which will be taken over by the Verkehrsverbund Rhein-Ruhr . At that time, the delivery of the first vehicle was planned for mid-2014 and the full delivery of the fleet for December 2015.

development

Development of the interior design in the suspension railway workshop with the help of a wood study

Local transport vehicles are usually designed according to existing standards and regulations. However, these standards cannot be applied to suspension railways. The technology of the new Wuppertal suspension railway is based on the tram construction and operating regulations (BOStrab), but many points had to be adapted. For this purpose, WSW employees were involved in the development process and numerous measurements were taken on the existing GTW 72 vehicles . The driving behavior when the vehicle is empty and fully occupied was examined and the angle of inclination and the forces at sensitive points such as the joints were measured. Measurements of the noise emissions were also carried out in order to obtain reference values ​​for the new development.

The course of the entire route of the Wuppertal suspension railway was modeled on the computer and the driving behavior of the new vehicles on this route was calculated. Scenarios such as towing or a collision of suspension railways were examined using simulation software .

In the spring of 2012, a wood study was created in the workshop of the Wuppertal suspension railway in Vohwinkel , with the help of which the design of the interior was illustrated. The dimensions of the wood study corresponded to those of the finished vehicle. In this way, the design and seating arrangement could be tested before the actual vehicles were manufactured. The color concept was announced in February 2013.

Manufacturing process

The trains are developed and manufactured under the leadership of Vossloh Kiepe, with the Prose engineering office from Winterthur being commissioned to develop the bogies and the Munich branch of Prose and design & technik from Altenrhein on Lake Constance for the development of the car bodies . The car bodies are manufactured in Austria by Hammerer Aluminum Industries , the front and rear cabins in the lightweight construction center in Saxony . The transmissions were developed and supplied by ZF Friedrichshafen . The joints at the car transitions were supplied by ATG Autotechnik from Siek in Schleswig-Holstein , the bellows by PEI from Bologna . The train control devices were developed by Alstom Transport Germany and manufactured in Belgium. The final assembly of the components in the car body takes place in the Vossloh Rail Vehicles plant in Valencia , where tests are also carried out on the stationary vehicle. The suspension railways are then dismantled again into the individual assemblies, transported to Wuppertal and reassembled and put on the rails in the main workshop of the Wuppertal suspension railway in Vohwinkel .

In December 2013 the first car body of an end car was completed, meanwhile other car bodies have been produced. At the beginning of 2015, the first car body was fitted with windows and painted in Valencia.

Installation

The vehicles are transported by semi-trailers from Valencia to Wuppertal.
Onlookers at the presentation of the first delivered train

In September 2014, the time of delivery of the first vehicle to Wuppertal was estimated to be October 2015. On October 23, 2015, the delivery date was set for November 14, 2015. On this occasion, the Vohwinkeler Straße leading to the depot was closed to traffic. Around 5000 people came to the unveiling of the first part of the wagon on a semi-trailer , Mayor Andreas Mucke was also present and gave a speech. On the night of February 9, 2016, the first self-powered test drive took place , initially without passengers . The section between the Vohwinkel and Hammerstein stops was driven several times, emergency braking was carried out and the angle of inclination was tested. Car 01 was used, which was temporarily equipped with measuring devices for this purpose. According to the Wuppertaler Stadtwerke, these first tests went smoothly. The WSW mobil publicly announced the location and route section of the nocturnal test drive, so that around 100 onlookers turned up. In the first three days of testing, 200 kilometers were covered. While the test drives initially took place at night, from the end of April 2016 tests were also planned during the day and thus parallel to ongoing operations with the GTW 72 vehicles. After a test phase of the vehicle and the train control system, the approval by the technical supervisory authority in Düsseldorf and the start of regular operations on December 18, 2016. At that time, seven of the 31 suspension railway trains ordered had been delivered.

The training of the operating personnel began even before the first test drive with the real vehicle. For this purpose, a simulation software was developed in which the arrangement of the control elements of generation 15 and the route of the Wuppertal suspension railway were reproduced.

Initially, the new vehicles went into operation without any major technical problems. In mid-May 2017, 11 new vehicles were already in operation and two more were already in Wuppertal. On May 19, 2017, however, between the Pestalozzistraße and Westende stations, a component of the chassis came into contact with the scaffolding of the suspension railway. The generation 15 vehicle was traveling at a speed of around 50 km / h to 60 km / h at that time. The property damage to the route and vehicle was minor, but the cause of the scaffold contact was not known. Therefore the delivery of new vehicles was stopped and the speed limit was reduced to 40 km / h. Due to the lower speed, 7 additional minutes had to be spent for one round , which, due to the limited number of vehicles, led to a reduction in the frequency . After more than a year of troubleshooting, the WSW announced in August 2018 that a design change would be carried out in order to be able to rule out renewed contact with the scaffolding in the future. The speed was again reduced by 10 km / h to 30 km / h until the design change was implemented, but the delivery of new vehicles could now be continued.

On November 18, 2018, the conductor rail of the suspension railway detached itself from the scaffolding over a length of several 100 meters and fell into the Wupper . Thereupon the passenger service of the suspension railway was stopped for several months. According to the WSW, the incident was not caused by the vehicles' pantographs , as they have a predetermined breaking point. The delivery of Generation 15 vehicles was therefore continued unchanged, and acceptance runs and test runs of the train control system were carried out. In January 2019, it was planned to have all new vehicles in operation by the time passenger operations resumed.

technology

drive

One of the four powered chassis before installation
Side view of the chassis
The new generation during a test drive in June 2016

Three-phase asynchronous motors are used in the new suspension railway trains. Each bogie has a drive motor to which ZF helical-bevel gears are connected on both sides . The first gear stage consists of a bevel gear , the second a spur gear . Since the travel speed with three-phase technology is changed by varying the frequency in the stator windings, the gearbox has a fixed ratio of 12.4127. The transmission technology for a bogie weighs 280 kg, added about 50 kg to arrival and take-off clutch . One gearbox contains 7.5 liters of gear oil . The seals on the shafts are carried out by labyrinth seals , which run without contact and therefore do not cause any friction or notch effects. The engine and transmission are fully suspended and mounted in rubber elements that reduce vibrations and noise emissions. The housings are made of aluminum , the cooling fins on the motor are clearly visible from the outside .

Electrically driving in the two drive groups is divided: At each end cars, a current collector , which via the current rail a DC voltage taps and power converter supplies two traction motors. If one drive group fails, the vehicle can continue its journey with the remaining drive group at half power and reduced top speed.

The top speed of Generation 15 is 65 km / h, although the Wuppertal suspension railway is only approved for 60 km / h. However, the operating voltage is increased from 600 volts to 750 volts. This and the use of three-phase motors increase the maximum acceleration to 1.3 m / s², the average acceleration triples compared to the GTW 72. As a result, the minimum cycle time can be reduced from three to two minutes and the travel time for the entire route by 5 can be reduced to 25 minutes.

Brakes

The GTW 2014 has two independent brake systems: the electromotive brake and the mechanical brake. With the electromotive brake, the three-phase motor acts as a generator ; the kinetic energy of the suspension railway is converted into electrical energy and the vehicle is braked. The generator output corresponds to the engine output; the braking deceleration is also the same as the maximum achievable acceleration. For a trip between two stations, the WSW estimate the electrical energy required to be two kilowatt hours , with one kilowatt hour being recovered by the electric brake with each braking process before the next station.

The mechanical braking system consists of four brake calipers, each located on the rear wheel of a bogie. When the brake is actuated, the brake calipers press brake pads onto the side surfaces of the wheels with the aid of hydraulic cylinders ( hydraulic brake ). There are two valves on the hydraulic unit : an emergency brake valve , which releases the full brake pressure, and a proportional valve , via which the brake pressure can be adjusted with an electrical control unit .

In normal operation, only the electromotive brake is used; the hydraulic brake is used for forced braking , rapid braking and emergency braking . Both braking systems are independent of the voltage applied to the conductor rail and function in the same way in the event of a power failure .

Car body

In order to achieve the lowest possible vehicle mass, the car body was made of lightweight construction and is made entirely of aluminum . The weight of the car body together with the front and rear cab is 5.4 tons. The individual components are first assembled to assemblies using friction stir welding . These assemblies are then connected to one another using conventional metal inert gas welding. Due to the small permissible manufacturing tolerances, the welding sequence is fixed.

Previously, time-consuming tests had to be carried out to check the weld seams, during which parts of the interior fittings also had to be replaced. The trains of type GTW 2014 therefore have substitute seams in critical, but easily accessible places, which save checking the other weld seams.

electronics

There are two independent data bus systems in the new suspension railway cars . A system connects the control units of the safety-relevant components such as drive, brakes and doors. The other devices such as air conditioning or passenger information systems are connected to the second system . The CANopen bus system is used for data transmission .

Train control

The new wagons of the Wuppertal suspension railway will be equipped with ETCS equipment for ETCS Level 2+ . The communication between train and track equipment takes place via Eurobalises and train radio . Accordingly, the GTW 2014 have a Eurobalise antenna and a train radio system for terrestrial trunked radio , which is used in Wuppertal instead of GSM-R . Various odometry sensors are used to determine the current position and speed, which are stored by a trip recorder. The ETCS on- board computer (EVC) brings together all the data, monitors the movement of the train and, if necessary, carries out train control . The driver can access the ETCS system via the driver machine interface (DMI) monitor installed in the driver's cab . The technical supplier is Alstom Transport Germany from Salzgitter . The on-board ETCS system continuously transmits the current position of the vehicle to the track equipment and the signal box . The previous route blocks will be retained.

Design and equipment

Exterior design

Generation 15 front view

The exterior design of the vehicles was created before the tender . However, when designing the vehicle, the basic dimensions had to be retained. The reasons for this are the clearance profile of the route, dimensions and markings in the stations, weight specifications and small curve radii of 9 m in the turning loops . However, some changes compared to the vehicles previously used have been made: the front window is now inclined downwards to allow the driver a better view, the rear window extends from the roof of the car almost to the ground and offers a panoramic view for the passengers, and adjacent windows have been added connected to each other to create the impression of a "ribbon window". The designers stated that when designing the landmark of the city of Wuppertal, the focus was on continuity and not a fashionable but a timeless design.

The installation of further glass elements was not possible, as glass windows are heavier than aluminum side walls and the weight specifications could otherwise not have been met. The original plans included plastic cladding for the chassis, which was later discarded because it would have increased the weight on the one hand and requests from the population for a clear view of the technology on the other.

Generation 15 trains are painted light blue and should blend in with the WSW's corporate design . The color is lighter than the blue used on the WSW mobil buses . Unlike in the past, there should be no full advertising on the suspension railways. Only the underside of the track and the middle section between the two joints and the associated window are approved for advertising.

inner space

Passenger compartment

Interior with wooden seats
Detail view of the wooden seats

The seat layout of the passenger compartment has remained the same compared to the GTW 72; On the left side of the vehicle there are two seats next to each other in the direction of travel, on the right side there are the entrance doors and a passage. Instead of plastic seats, upholstered wooden seats with a width of 47.5 centimeters are used. Multipurpose compartments were set up at the ends of the vehicle ; the front door also has a folding ramp for wheelchair users. There are additional handles on the seats and on the ceiling. The passenger information system consists of two monitors, one of which is placed directly behind the driver's cab and one in the middle of the suspension railway. There are seven surveillance cameras in a generation 15 suspension railway train , the images of which can be recorded and also displayed in the driver's cab.

For the color scheme, three different variants were developed, each of which is used on a third of the vehicles. The side walls are always white and the handrails are gray, but the non-slip floor and seat cushions are green, red or yellow, depending on the variant. Of the 31 trains ordered, eleven will be given a green, ten a yellow and ten a red interior design. The ceiling is made of sheet metal with integrated LEDs ; the entrances are separately lit and equipped with electronic passenger counters.

The temperature inside the vehicle is regulated by an air treatment system with a dehumidifier . The maximum cooling capacity is limited, however, as there is little space available for air conditioning on the roof of the vehicle. Generation 15 windows can still be opened.

Driver's cab

A wood study in the suspension railway workshop (2013)

The driver's seat is height adjustable and has suspension. Between the passenger compartment and the driver's cab there is a transparent plexiglass partition with a built-in door. Two touchscreens are now installed in the driver's desk . The driver's cab also has air conditioning that is independent of the passenger compartment .

Others

Suspension railway model in nominal size H0

In September 2015, the Wuppertal public utility company announced that it would be selling a model of the new suspension railway generation in nominal size H0 in their customer centers from November 2015 . The models come from Herpa and were produced in an edition of 7500 pieces. In addition to the standard version, there was a "Special Edition" limited to 1000 copies at the start of sales, which shows a route map with all the stops on the underside and the lettering "VohwinkelElberfeldBarmenOberbarmen" on the side, which is composed of the city districts passed through without separators. In addition, the WSW currently (January 2018) sell another special model "blue wonder" with a circulation of 2000 pieces.

Web links

Commons : WSW GTW Generation 15  - Collection of images, videos and audio files

Individual evidence

  1. ↑ a b c d ZF Friedrichshafen : Wuppertal suspension railway: With ZF up high. (Leaflet)
  2. ↑ The Wuppertal suspension railway: data & facts. In: WSW AG. Retrieved September 13, 2019 .
  3. ↑ SCHWEBEBAHN, GTW 2014 WUPPERTAL, GERMANY (PDF). In: Kiepe Electric. Retrieved September 13, 2019 .
  4. ↑ a b First new suspension railway is being delivered. on neue-schwebebahn.de , October 23, 2015, accessed on November 14, 2015.
  5. ^ City of Wuppertal - The first new suspension railway comes to Wuppertal. In: www.wuppertal.de. Retrieved November 15, 2015 .
  6. ↑ Wuppertal: The first new suspension railway wagon comes by low loader. In: RP ONLINE. Retrieved November 15, 2015 .
  7. ↑ a b c d e f g h i j k l m n o p q r s t u v Dipl.-Ing. Joachim Ebmeyer, Dipl.-Ing. Christoph Deiss: Swiss bogie know-how for new suspension railway cars for the Wuppertal public utilities. In: Eisenbahntechnische Rundschau 9/2014, pp. 177–181.
  8. ↑ a b c timeline. at neue-schwebebahn.de , accessed on November 2, 2014.
  9. ↑ a b A top model for Wuppertal. Website of the Wuppertaler Stadtwerke, accessed on September 13, 2015.
  10. ^ Büro + Staubach Transport at buero-staubach.de , accessed on November 2, 2014.
  11. ↑ Design Exterior and Interior at neue-schwebebahn.de , September 1, 2010, accessed on November 2, 2014.
  12. ↑ a b c Vossloh Kiepe is building a new generation of suspension trains on neue-schwebebahn.de , November 10, 2011, accessed on November 2, 2014.
  13. ↑ Stefan Melneczuk: Schwebebahn 2015: The first is made of wood. Westdeutsche Zeitung website , April 20, 2012, accessed November 15, 2014.
  14. ↑ a b c d Now color comes into play at neue-schwebebahn.de , February 22, 2013, accessed on November 2, 2014.
  15. ↑ a b c d A few more stops to Wuppertal on neue-schwebebahn.de , accessed on November 2, 2014.
  16. ↑ a b First car body of the new generation on neue-schwebebahn.de , November 21, 2013, accessed on November 2, 2014.
  17. ↑ ATG Autotechnik leaflet on the intercar transition
  18. ↑ a b Peer Jacobsen: Tradition and Future: The Wuppertal Suspension Railway with ETCS Level 3 and TETRA. In: Eisenbahntechnische Rundschau 6/2014, pp. 54–57.
  19. ↑ First new suspension railway for Wuppertal on busundbahn.de , November 25, 2015, accessed on November 28, 2015.
  20. ↑ a b Production in Valencia on neue-schwebebahn.de , accessed on February 19, 2015.
  21. ↑ Lothar Leuschen: New suspension railway comes later. Solinger Tageblatt website , September 1, 2014, accessed on January 22, 2018.
  22. ↑ First part of the new suspension railways arrived. Rheinische Post website , November 14, 2015, accessed on November 15, 2015.
  23. ↑ Wuppertal welcomes the new suspension railway. Westdeutsche Zeitung website , November 14, 2015, accessed on November 15, 2015.
  24. ↑ First car in Vohwinkel - the new suspension railway is here. Rheinische Post website , November 14, 2015, accessed on November 15, 2015.
  25. ↑ First test run of the new suspension railway: Wuppertaler Stadtwerke. (No longer available online.) In: www.wsw-online.de. Archived from the original on February 15, 2016 ; accessed on February 15, 2016 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / www.wsw-online.de
  26. ↑ a b City of Wuppertal - New suspension railway completes its maiden voyage without problems. In: www.wuppertal.de. Retrieved February 15, 2016 .
  27. ↑ Manuel Praest: Via suspension railway simulator through Wuppertal. In: Westdeutsche Zeitung. Retrieved February 15, 2016 .
  28. ↑ a b On April 23, the suspension railway will run for the first time during the day. In: Westdeutsche Zeitung. Retrieved March 30, 2016 .
  29. ↑ WSW test new suspension railway in operation: Wuppertaler Stadtwerke. In: www.wsw-online.de. Retrieved February 4, 2016 .
  30. ↑ Westdeutsche Zeitung: Replacement of the old suspension railway wagons continues. Retrieved January 3, 2019 .
  31. ↑ Wuppertal suspension railways have to go slower. August 13, 2018, accessed January 3, 2019 .
  32. ↑ The cause of the suspension railway accident in Wuppertal is unclear. November 19, 2018, accessed January 3, 2019 .
  33. ↑ Wuppertal suspension railway: test runs are underway. December 7, 2018, accessed January 3, 2019 .
  34. ↑ New start of the suspension railway in light blue - Wuppertal total: Current news and local news. Retrieved January 3, 2019 .
  35. ↑ a b c d e f g construction on neue-schwebebahn.de , accessed on November 3, 2014.
  36. ↑ ausschreiben-deutschland.de: Planning, construction, delivery and commissioning of an operating system (train protection / train control) for the Wuppertal suspension railway. July 13, 2012.
  37. ↑ Operating system on neue-schwebebahn.de , accessed on November 4, 2014.
  38. ↑ a b Mike Bent: First Schwebebahn Generation 15 Cars Delivered. In: Railvolution 6/2015, pp. 68–69.
  39. ↑ a b c The suspension railway is a unique opportunity at neue-schwebebahn.de , November 9, 2010, accessed on November 3, 2014.
  40. ↑ Exterior design on neue-schwebebahn.de , accessed on November 3, 2014.
  41. ↑ Stefan Melneczuk: The new suspension railway runs light blue into the future. Westdeutsche Zeitung website , February 22, 2013, accessed on November 15, 2014.
  42. ↑ Outdoor advertising on neue-schwebebahn.de , accessed on November 3, 2014.
  43. ↑ a b c d interior design on neue-schwebebahn.de , accessed on November 4, 2014.
  44. ↑ a b c d Stefan Melneczuk: Schwebebahn 2015: More space, more light, more safety. Westdeutsche Zeitung website , February 22, 2013, accessed on November 15, 2014.
  45. ↑ Thousands celebrate the new suspension railway: Wuppertaler Stadtwerke. In: www.wsw-online.de. Retrieved November 16, 2015 .
  46. ↑ Air conditioning, heating and comfort at neue-schwebebahn.de , December 21, 2014, accessed on February 19, 2015.
  47. ↑ The new suspension railway in the model ‹New wagons for the suspension railway. Retrieved January 3, 2018 (German).
  48. ^ Suspension railway special model 'Blaues Wunder' - Wuppertal Shop. Retrieved January 3, 2018 .