Mercedes-Benz Citaro

The Mercedes -Benz Citaro, pronounced [ sɪ'tɑʀo ], is a technology developed for the regular service bus range by Daimler -Benz, or their subsidiary EvoBus.

General

The type designations Citaro O 530 respectively without any further additions to denote the standard version of the series, the twelve -meter long, two-axle and continuous low solo bus. In the other versions of the Citaro abbreviations are appended to the name ( "T" for the Overland version, "G" for the joint version, "LE " for low-entry, etc.).

The Citaro was first presented at the 1997 UITP Congress in Stuttgart. With the start of series production in 1998, this primarily in Mannheim and in French Ligny -en- Barrois ( a former Kässbohrer plant) built and is the successor to the Mercedes- Benz O 405 N series with which he was produced a few years in parallel. In the construction of Daimler- Benz was able to build on the experiences of low-floor bus Kässbohrer Setra S 300 N of 1989.

After 13 years, the 30,000 th Citaro was delivered in 2010, so this bus is one of the most successful line of buses.

In the traditional design of the Citaro city is continuous low floor, but the seats are mounted in the rear of the vehicle on platforms that allow, among others, the installation of the rear left under the floor lying diesel engine. Alternatively, a variant with side- standing tower engine is offered, thus landing stages at least can be avoided on the right side of the vehicle and steep climbs inside the car, which is also a three-door version benefits. 2005, a low-entry variant was introduced to complement the product range. In this embodiment, the vehicle floor rises before the rear axle with multiple stages, allowing the installation of a center back under the floor lying motor.

First Generation Citaro

The first generation of the Citaro has been produced since 1997. The bus turned out to be, after some initial difficulties, like its predecessor, the Mercedes- Benz O 405 N as a great success. 2005, the low-entry version came on the market, but already had the appearance of Citaros after the facelift.

In the summer of 2006, there were for the existing variants a larger facelift that shows outwardly through a revised front and rear styling (similar to the recently introduced low-entry buses ). The previous characteristic feature of the first series, the " washboard panel " at the front of the vehicle, which was, however, as a front advertising space and a smooth surface without star available, accounted in favor of something gerundeteren Bugblende. The tapering of the sides of the front turn signal was turned upside down. The tail was the coach aligned Travego: it was similar multi-chamber lights and was designed round total.

Under this facelifts also the rigid front axle previously used was replaced by an already used in the low-entry vehicle independent suspension, so the ride and suspension comfort was increased. The axis is originally from ZF Passau and was revised by Daimler -Benz. The interior is distinguished by a slightly revised ceiling design with oval Deckenausströmern, otherwise this remained largely unchanged. The range of passenger seats have been added in the highest level of comfort for the ISE series, which is recognizable by the tapered backs. More economical and cleaner engines of the standards Euro 4 and Euro 5 - later EEV - were introduced.

Second - generation Citaro

In May 2011, the second generation of the Citaro public was presented. The design has changed again with the new generation.

In September 2011, the Stadtwerke Trier received two MB O 530 G C2 and thus the first vehicles of this type in a traffic operation in Germany. As a contrast to the last Citaro solo vehicle, the vehicles have a different style, similar to the articulated cars are now between the two doors wider seats instead of normal two - seats installed. In addition, the new Citaro were first equipped with the new on-board computer with touch display.

In 2012, again followed by innovations in the rear area of the bus, with those of the Citaro C2 will then be completely designed for diesel engines of Euro 6 standard. From the outset, the new Citaro decreed optional Electronic Stability Program (ESP), which the EU as a national policy in 2015.

For now, still known from the C1 line six- cylinder engines OM 906 and OM were 457 ( h) LA used. Since May 2012, the gradual introduction of the new common- rail diesel engines from the OM 936 series with 7.7 liter engine (220 and 260 kW, 299 and 354 hp) and the OM 470 series takes place with 10.7 liters of displacement (265 and 290 kW, 360 and 394 hp). Both series are six-cylinder in-line engines in EUR 6 homologation.

Variants

Currently, the Citaro is manufactured in the following versions, all versions are offered until 2014 also in the design of the facelifted C1.

• O 530: solobus, length 12 m, 2 axes, horizontal or vertical motor, 2 or 3 doors, even with front door ( only in countries with left-hand traffic )
• O 530 CNG: Gas Drive, Length 12 m, 2 axes, 2 doors
• O 530 FuelCell Hybrid, length 12 m, 2 axles, 3 doors
• O 530 G: Articulated, length 18 m, 3-axis, horizontal or vertical motor, 3 or 4 doors, even with 2 doors ( only in countries with left-hand traffic )
• O 530 G BlueTec Hybrid, length 18 m, 3 axes, 3 or 4 doors
• O 530 G CNG: articulated bus with gas drive, length 18 m, 3 axes, 3 doors
• O 530 GL: articulated ( long) ( CapaCity ), length 19.5 m, 4 axes, 3 or 4 doors
• O 530 K: Midibus, length 10,5 m, 2 axes, horizontal engine under the floor in the rear, 2 (also 3 ) Doors
• O 530 L: solo bus ( long), 15 m long, 3 axles, 2 or 3 doors
• O 530 LE: Low Entry, length 12 m, 2 axes, 2 or 3 doors

• O 530 GÜ: Articulated, length 18 m, 3 axes, 3 doors
• O LE 530 MT: Low- Entry ( medium ), length 13 m, 2 axes, 2 doors, even with front door ( only in countries with left-hand traffic )
• O 530 LE Ü: low-entry, length 12 m, 2 axes, 2 doors
• O 530 LÜ: solo bus ( long), 15 m long, 3 axles, 2 (also 3 ) Doors
• O 530 MT: solo bus ( medium ), length 13 m, 2 axes
• O 530 t: solo bus, length 12 m, 2 axes, 2 doors

Overland version

As a crucial difference to the city version of the Citaro the overland version equipped as standard front and (if 3 door available, not 3 door Citaro GÜ ) back on one and in the middle ( Citaro GÜ even in 3 door ) with two swing-out doors in place everywhere double leaf inward-swinging doors ( two-track handling), are also available for cross-country versions, however. In the city bus version of the Citaro LE and the optional third door is always a single-sliding door. Furthermore, the cross-country variants are optionally available in the front on pedestals under the seats and a resultant change in location of the fuel tank.

Although EvoBus provides commonly called " Overland Front" designated front design on, in which the target display is behind the one-piece, further up leading rearwardly inclined front windscreen and not in a dazzle-free projecting box, but this is also optionally available for the Citaro the city version. Similarly, the Overland version can be ordered with conventional front design.

Irvine Citaro

When the Hanover transport companies üstra wanted to procure 2,000 new buses for the World Expo, she created in collaboration with 300 citizens an specifications. The unusual design gave James Irvine, the version of the Citaro in Irvine design was created. Hannover and Leipzig were vehicles with this style. Meanwhile, the Irvine - Citaro is rejected at transport companies in Germany and is usually only deployed abroad, specifically in Klaipeda.

Fuel cell version

As O 530 BZ 2002 and 2003, mainly in the project funded by the European Union CUTE project 37 fuel cell powered Citaro were made in the years that were subjected to a two, sometimes three years of practical test. By the summer of 2010, there were still some buses, also originally from other cities in the HHA in Hamburg in use.

RHD version

The Citaro - especially as O 530 O 530 O 530 BZ or G - is also available as right-hand drive for use in countries with left-hand traffic. In this embodiment, no door behind the last axle can be installed due to the arrangement of the engine so that a maximum of two or three doors, the articulated bus is possible. However, as a right-hand drive, the Citaro is also available with two doors only one or articulated bus, as it is commonly called in the UK. Also there is a right hand drive version with two doors on the left and another middle door on the right side, for example, for use as a ramp bus at airports.

Guided bus version

In 2008, the first of 47 Citaro ( 16 solo and 31 articulated cars ) came with guidance at the Essen transport company. The vehicles will be used on the four lane bus lines in Essen. The first line use was made after some test drives in July 2008. These vehicles gradually replaced the vehicles of the type O 405 GN ( 2).

Hybrid version

Since 2010 Citaro articulated buses in hybrid version at the Stuttgart trams AG, Stadtwerke Krefeld AG, Hamburg High Bahn AG and the Mülheim traffic mbH. For the transport companies transport company Essen, Duisburg transport company, Munich Transport Company, Niederrheinische supply and transport Monchengladbach, Hamburg elevated railway and tram Rostock hybrid buses have been built. The Dresden Transport ( eight pieces) and Leipzig Transport ( three pieces) set since May 2011 Citaro hybrid buses. The buses are equipped with a serial hybrid drive: a 160 kW diesel engine fed by generator an intermediate circuit with lithium batteries, in turn, the actual drive, four electric motors ( hub motors ) with a nominal total capacity 320 kW at the 2nd and 3rd axis supplied. Below a speed of 30 kilometers per hour, the diesel engine switches off, so that is emission-free driving in the bus stop area and in stop-and -go traffic. During braking and downhill driving the electric motors act as generators and charge the batteries on. If the battery charge drops to about half the capacity, the diesel engine is turned on. This is only about half as large in size as comparable vehicles with conventional power transmission. Due to the mechanical decoupling of the wheel drives the diesel engine can run at a constant speed in the optimum rpm range, especially at the Anfahrlärm herkommlicher power transmission by revving the engine is eliminated. The heavy weight of the batteries of the bus, however, is about 1.5 tons heavier than a comparable articulated. The fuel consumption purely for the drive is about one third lower than for a conventional bus. However, heating of the passenger compartment, air conditioning and auxiliary systems still require additional energy. The diesel hybrid drive is a key function as a product platform for all types of electrical drives and power transmission, whether. Due to fuel cell, catenary, induction or other options Even more powerful and lighter batteries are still sought in order to improve the payload Totlastverhältnis on.

Trolleybuses

Because EvoBus itself does not offer trolleybuses built the transport companies of the Hungarian city of Szeged in the years 2006 to 2010 used in-house six acquired Citaro solo vehicle for trolleybuses to. Of these, it is hoped that savings in spare parts inventory - this can be done together with the similar diesel buses of donors series - as well as lower cost compared to mass-produced trolleybuses. The modified type designation reads O -530 Tr12, the six cars bear the registration numbers T- 860 to T- 865th

2012 also went in Gdynia, Poland, also two Citaro trolley buses in operation. The car with the numbers 3053 and 3054 arose from bought second-hand diesel buses, the year of construction 2002 and originate from the Berlin transport.

Engines and transmissions

Available are three types of engines:

• Diesel engine OM 906 hLA (6.4 liter) engine with 180 kW ( 245 hp ) and 900 Nm or 205 kW ( 279 hp) and 1100 Nm
• Diesel engine OM 457 hLA (12 liters ) with 185 kW ( 252 hp ) and 1100 Nm, 220 kW ( 299 hp ) and 1,250 Nm or 260 kW ( 354 hp ) and 1600 Nm
• Natural gas engine M 447 hLAG (12 liter) engine with 185 kW ( 252 hp ) and 1,050 Nm or 240 kW ( 326 hp) and 1250 Nm

After the diesel engines since the fall of 2001 to meet the Euro 3 emission standard, 2006 diesel engines were installed in October that meet the Euro 4 standard or even the Euro 5 standard and the EEV standard. In addition to a particulate filter that operates with urea BlueTec system is required, it must be fueled for the addition of urea ( AdBlue).

The motors are currently combined with the following gear types:

• ZF Ecomat, five- speed automatic transmission
• IF EcoLife, six- speed automatic transmission ( since 2008 )
• ZF Ecomat, six- speed automatic transmission
• Voith four- speed automatic transmission

In the first series were also Citaro with the EPS or Telligent gearshift, a teilautomatisiertem manual available. On special request also can order further shift aids.

Gallery

Citaro G articulated bus, after facelift 2006

15 - meter version Citaro L, after facelift 2006

Low-entry bus (extended version ) Citaro LE MT

Right-hand drive version with City Overland front and only one door

Natural gas Citaro G articulated bus CNG

Citaro G articulated bus ( face lift ) EVAG with guided bus rolls

Short Citaro ( O 530 K) of the first generation after the facelift in Bielsko- Biała

Four-door Citaro G Linz AG

Citaro the Munich Fire

VDV cockpit of the Citaro ( RHD)

Rear seating in the Citaro G