{"id":2940,"date":"2026-09-02T14:35:23","date_gmt":"2026-09-02T11:35:23","guid":{"rendered":"https:\/\/huebner.webtwin.ru\/chto-takoe-mezhvagonnyy-perekhod\/"},"modified":"2026-09-24T08:27:48","modified_gmt":"2026-09-24T05:27:48","slug":"chto-takoe-mezhvagonnyy-perekhod","status":"publish","type":"post","link":"https:\/\/huebner.webtwin.ru\/blog\/chto-takoe-mezhvagonnyy-perekhod\/","title":{"rendered":"What is the inter-wagon transition: functions, working principle and application"},"content":{"rendered":"

The passenger passes between the cars in a few seconds and rarely thinks about what exactly is happening with the structure around him. Meanwhile, two adjacent bodies during the movement are not in a fixed position: They move relative to each other in turns and on different parts of the path. The transition should take into account these movements and at the same time remain part of a safe passenger space.<\/p>\n\n\n\n

Intercar Transition (disambiguation)<\/a> \u2014 is the part of the rolling stock that connects adjacent cars, allows their relative movement and ensures the passage of passengers.<\/strong> At the same time, it performs the functions of noise and thermal insulation and protects passengers and service personnel from the effects of the \u2014 external environment of precipitation, dust and wind. It is this appointment that is recorded in the technical materials of the company Hubner.<\/p>\n\n\n\n

This explains why the inter-car junction cannot be regarded as a normal corridor between two wagons. It works together with the rolling stock and must retain its functions when the train is moving.<\/p>\n\n\n\n

What tasks does the inter-wagon transition<\/h2>\n\n\n\n

\u2014's First and Most Notable Task Safe passage of passengers<\/strong>. In modern trains, the transition helps to form a more connected passenger space and allows you to move between neighboring cars.<\/p>\n\n\n\n

Second task \u2014 Compensation for reciprocal movements of bodies<\/strong>. The design should take into account the fact that the adjacent wagons change their position relative to each other during the movement. In H\u00fcbner's product materials, this function is separately identified as one of the key characteristics of the intercar transition.<\/p>\n\n\n\n

The third group of tasks is related to the comfort and protection of the interior space. The transition contributes to noise and thermal insulation, provides protection of the zone between the wagons from external influences and helps to maintain the necessary tightness of the passage.<\/p>\n\n\n\n

Thus, one system simultaneously works with the mechanics of the movement of the composition and with the requirements of the passenger environment.<\/p>\n\n\n\n

Why there is no one crossing for all trains<\/h2>\n\n\n\n

At first glance, different inter-wagon transitions may look similar, but their size and performance are noticeably different.<\/p>\n\n\n\n

For example, in the products of the company H\u00fcbner presented separate solutions for electric trains ES1P, ES2G and ES2GP Swallow (TV series)<\/a><\/strong>, for the EG2TV and EGE2TV Oriole (TV series)<\/a><\/strong>, and trains EP2D, EP2DM and ED4M<\/strong>, Moscow Metro \"Moscow-2020\" and \"Moscow-2024\"<\/a><\/strong>, passenger cars and rail buses.<\/p>\n\n\n\n

It's not just the sizes that differ. For the \"Swallow\", for example, the materials indicate the inter-wagon transition assemblage, for the \"Ivolga\" \u2014 the version with handrails, and for metro trains and some other types of rolling stock, performances in the form of halves of inter-wagon transitions are used.<\/p>\n\n\n\n

This is due to the fact that the system must be integrated into the design of a particular vehicle. Therefore, there is no universal answer to the question \"which inter-wagon transition is better\" without initial data on the rolling stock itself.<\/p>\n\n\n\n

How to create a solution for a specific project<\/h2>\n\n\n\n

In H\u00fcbner's materials, the design cycle begins with the analysis of vehicle parameters, operating conditions and technical requirements. Then the design is developed or adapted, coordination is carried out, after which the product goes into production and testing. The last step is service support.<\/p>\n\n\n\n

In practice, this means that vehicle data is important to start the engineering work: its design, the dimensions of the installation zone, the requirements for passage and the available design documentation. The more accurate the initial data, the more accurate it is possible to determine the execution of the future system.<\/p>\n\n\n\n

For a new project, it may be necessary to adapt an existing solution, and in other cases, \u2014 will require more substantial design work. That is why in the B2B market, the inter-wagon transition is more often the Engineering Project<\/strong>, Not just a standard part.<\/p>\n\n\n\n

Where inter-wagon crossings are used<\/h2>\n\n\n\n

The scope of application is much wider than one type of railway transport. The company's materials present solutions for electric trains, metro, suburban rolling stock, passenger cars and rail buses. Inter-car and inter-sectional systems are also associated with urban transport.<\/p>\n\n\n\n

A good example of the differences between \u2014 trains and multi-section trams. The basic task is similar: connect the two parts of the vehicle and provide a safe area between them. But the features of kinematics and design differ so much that in the tram, together with the flexible bellows, the upper and lower joint systems work separately. Therefore, for urban electric transport, the company allocates bellows and articulation systems in independent product directions.<\/p>\n\n\n\n

This is one of the main principles of transport engineering: The purpose of the system may be similar, but the design is determined by the vehicle itself.<\/strong><\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

What Happens After Manufacturing<\/h2>\n\n\n\n

After production, the product must undergo the necessary inspections and acceptance. In the materials of the company, quality control is considered as a process that goes from the incoming control of materials to the inspection of the finished product. Tests are provided in accordance with the technical requirements of a particular project.<\/p>\n\n\n\n

H\u00fcbner is also developing its own testing capabilities. In an interview with the leadership of 2025, it was reported about the acquisition of a stand that allows you to simulate the operation of intercar junctions and check the functionality and reliability of the design directly at the enterprise.<\/p>\n\n\n\n

For the industry customer, this is especially important: The design or design model should eventually turn into a physical product capable of performing the required movements and retaining characteristics in operation.<\/p>\n\n\n\n

Inter-car crossing as part of the train life cycle<\/h2>\n\n\n\n

Work with the system does not end after its installation on a new rolling stock. Inter-wagon junctions have been in operation for many years, so the tasks of diagnosing, maintaining, repairing and replacing individual components or the entire system later arise.<\/p>\n\n\n\n

The company's materials note that the first railway intercar junctions were delivered to the Russian market in 2011, and the service life of many such systems is about 12\u201315 years. For this reason, the modernization and maintenance of previously delivered products become a separate area of engineering work.<\/p>\n\n\n\n

As a result, the modern inter-wagon transition is more correct to consider not as a separate part of the car, but as a system that passes along with the rolling stock several stages: design \u2192 production \u2192 testing \u2192 operation \u2192 service \u2192 modernization or replacement<\/strong>.<\/p>\n\n\n\n

And it is the requirements at all these stages that should be taken into account already at the time of choosing or developing a solution.<\/p>","protected":false},"excerpt":{"rendered":"

What is the inter-wagon transition, what functions it performs, why the designs differ for different trains and how the solution adapts to a specific rolling stock.<\/p>","protected":false},"author":2,"featured_media":1958,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[29],"tags":[],"class_list":["post-2940","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-expertise-and-publications"],"acf":[],"_links":{"self":[{"href":"https:\/\/huebner.webtwin.ru\/en\/wp-json\/wp\/v2\/posts\/2940","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/huebner.webtwin.ru\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/huebner.webtwin.ru\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/huebner.webtwin.ru\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/huebner.webtwin.ru\/en\/wp-json\/wp\/v2\/comments?post=2940"}],"version-history":[{"count":7,"href":"https:\/\/huebner.webtwin.ru\/en\/wp-json\/wp\/v2\/posts\/2940\/revisions"}],"predecessor-version":[{"id":4916,"href":"https:\/\/huebner.webtwin.ru\/en\/wp-json\/wp\/v2\/posts\/2940\/revisions\/4916"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/huebner.webtwin.ru\/en\/wp-json\/wp\/v2\/media\/1958"}],"wp:attachment":[{"href":"https:\/\/huebner.webtwin.ru\/en\/wp-json\/wp\/v2\/media?parent=2940"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/huebner.webtwin.ru\/en\/wp-json\/wp\/v2\/categories?post=2940"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/huebner.webtwin.ru\/en\/wp-json\/wp\/v2\/tags?post=2940"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}