A flexible marshalling city area A-type vehicle topology structure
By designing a flexible formation topology for urban A-type trains, the problem of different passenger capacity and speed requirements was solved, enabling rapid changes in formation, optimizing energy utilization, and meeting different operational needs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-02-10
- Publication Date
- 2026-03-17
AI Technical Summary
The passenger capacity and speed requirements of urban Class A vehicles differ between suburban areas and urban areas, and existing technologies make it difficult to achieve flexible formation, resulting in insufficient energy utilization.
Design a city-type A-class train topology that enables flexible train formation. By configuring semi-motorized cars, motorized cars with pantographs, and different train formations, and utilizing components such as high-voltage systems, traction transformers, traction converters, and traction motors, the train formation can be changed quickly.
It enables flexible train formation under different passenger capacity and speed requirements, optimizes energy utilization, and saves operating costs.
Smart Images

Figure CN116022175B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of rail vehicle technology, and in particular relates to a topology structure for urban A-type trains that can achieve flexible formation. Background Technology
[0002] Urban A-type trains are primarily used to connect urban areas and suburban regions. Within cities, they connect with or share lines with subway trains to alleviate traffic congestion; in suburban areas, they provide rapid access, shortening commuting time. The operational characteristics of urban A-type trains are high passenger capacity, low speed, and high acceleration / deceleration requirements within urban areas; while in suburban areas, they have low passenger capacity, high speed, and low acceleration / deceleration requirements. This invention provides a configuration method for urban A-type trains that allows for flexible formation, enabling rapid conversion between different formations such as 3, 4, 6, 8, 3+3, and 4+4 units, optimally utilizing vehicle performance and saving operating energy. Summary of the Invention
[0003] This invention aims to solve the problem of flexible formation of urban A-type vehicles to meet different passenger capacity and speed requirements in suburban and urban areas. It provides a flexible formation topology for urban A-type vehicles, which can meet different passenger capacity needs inside and outside the city while ensuring efficient energy use by quickly changing the formation.
[0004] To achieve the above-mentioned objectives, this invention provides a flexible formation topology for urban A-type trains, including semi-motorized cars (TMCs) with driver's cabs at both ends, and one or more motorized cars (MPs) with pantographs in the middle. When there are two or more MPs with pantographs, one or more semi-motorized cars (M1) and motorized cars (M2) are connected between adjacent MPs with pantographs. Each pantograph is a traction unit, and each traction unit is equipped with a high-voltage system, a traction transformer, a traction converter, and a traction motor. The traction units near both ends are equipped with integrated main and auxiliary charging converters.
[0005] When the train consists of 8 cars, the configuration is 6 powered cars and 2 trailer cars, and the train formation is =TMC-MP1-M1-M2-MP2-M1-MP3-TMC=. The entire train is equipped with 3 pantographs, which are 3 traction units. Each traction unit is equipped with 1 high-voltage system, 1 traction transformer, 2 traction converters, and 8 traction motors. The MP1 and MP3 traction units are equipped with integrated main and auxiliary charging converters.
[0006] When the train consists of 6 cars, the configuration is 4 powered and 2 unpowered, and the train formation is =TMC-MP1-M2-MP2-MP3-TMC=. The entire train has 3 pantographs, which are 3 traction units. The traction units of MP1 and MP3 cars are equipped with 1 high-voltage system, 1 traction transformer, 1 traction converter, 1 main and auxiliary charging converter, and 6 traction motors. The traction unit of MP2 car is equipped with 1 high-voltage system, 1 traction transformer, 2 traction converters, and 8 traction motors.
[0007] When the train consists of 4 cars, the configuration is 3 cars powered and 1 trailer, and the train formation is =TMC-MP2-MP3-TMC=. The entire train has 2 pantographs, which are 2 traction units. Each traction unit is equipped with 1 high-voltage system, 1 traction transformer, 1 traction converter, 1 main and auxiliary charging integrated converter, and 6 traction motors.
[0008] When the train consists of 3 cars, the configuration is 2 cars powered and 1 trailer, and the train formation is =TMC-MP2-TMC=. The entire train has 1 pantograph, and the traction unit is equipped with 1 high-voltage system, 1 traction transformer, 1 traction converter, 2 main and auxiliary charging integrated converters, and 8 traction motors.
[0009] The MP2 vehicle is a reversing vehicle.
[0010] Furthermore, the two 3-car trains can be connected together to form a 3+3 coupled train.
[0011] Furthermore, the two 4-car trains can be connected together to form a 4+4 double-unit train.
[0012] This invention can quickly convert vehicles into different train configurations such as 3, 4, 6, 8, 3+3, and 4+4 multiple units without changing the vehicle structure or wiring. After the reconfigured vehicles are powered on, the software can perform adaptive configuration. Attached Figure Description
[0013] Figure 1 Configure a topology diagram for an 8-car urban A-type train;
[0014] Figure 2 Configure a topology diagram for a 6-car urban A-type train;
[0015] Figure 3 Configure a topology diagram for a 4-car trainset of Urban Area Type A;
[0016] Figure 4 Configure a topology diagram for a 3-car trainset of Urban Area Type A;
[0017] Figure 5 To enable flexible configuration of urban A-type vehicles. Detailed Implementation
[0018] To better understand the purpose, structure, and function of this invention, the following detailed description, in conjunction with the accompanying drawings, provides an example of a flexible grouping topology structure for urban A-type vehicles.
[0019] This invention enables a flexible formation of urban A-type train topology, comprising semi-motorized cars (TMCs) with driver's cabs at both ends, and one or more motorized cars (MPs) with pantographs in the middle. When there are two or more MPs with pantographs, adjacent MPs with pantographs are connected by one or more of the semi-motorized cars (M1) and motorized cars (M2). Each pantograph is a traction unit, and each traction unit is equipped with a high-voltage system, traction transformer, traction converter, and traction motor. The traction units near both ends are equipped with integrated main and auxiliary charging converters.
[0020] When the train consists of 8 cars, the configuration is 6 powered and 2 trailer cars, as follows:
[0021] =TMC-MP1-M1-M2-MP2-M1-MP3-TMC=
[0022] The TMC car is a semi-motorized car with a driver's cab, the MP car is a motorized car with a pantograph, the M1 car is a semi-motorized car, and the M2 car is a motorized car. Detailed configurations are attached. Figure 1 As shown, the entire train is equipped with 3 pantographs, which are 3 traction units. Each traction unit is equipped with 1 high-voltage system, 1 traction transformer, 2 traction converters, and 8 traction motors. The MP1 and MP3 cars adopt an integrated design of traction, auxiliary and charging machine (hereinafter referred to as the main auxiliary charging integrated converter), while the MP2 car is a reversing car.
[0023] If reorganized into a 6-car formation, remove the two M1 cars, keeping the other car types unchanged. The powered and trailer configuration would then be 4 powered and 2 trailer cars, with the following formation:
[0024] =TMC-MP1-M2-MP2-MP3-TMC=
[0025] Detailed configuration information is attached. Figure 2 As shown, the entire train still has 3 pantographs, which are 3 traction units. The MP1 and MP3 traction units are each equipped with 1 high-voltage system, 1 traction transformer, 1 traction converter, 1 main and auxiliary charging integrated converter, and 6 traction motors. The MP2 traction unit is equipped with 1 high-voltage system, 1 traction transformer, 2 traction converters, and 8 traction motors.
[0026] If it is further reorganized into a 4-car formation, the MP1 and M2 cars will be removed, while the other car types remain unchanged. The powered and tractor configuration will then be 3 powered cars and 1 tractor car, with the following formation:
[0027] =TMC-MP2-MP3-TMC=
[0028] Detailed configuration information is attached. Figure 3 As shown, the entire train has two pantographs, which constitute two traction units. Each traction unit is equipped with one high-voltage system, one traction transformer, one traction converter, one main-auxiliary-charging integrated converter, and six traction motors. The two four-car trains are connected to form a 4+4 double-unit train.
[0029] If we further reorganize it into a 3-unit formation, we will remove the MP3 vehicle while keeping the other vehicle types unchanged. The powered and towed configuration will then be 2 powered vehicles and 1 towed vehicle, and the formation will be as follows:
[0030] =TMC-MP2-TMC=
[0031] Detailed configuration information is attached. Figure 4 As shown, the entire train uses one pantograph, and the traction unit is equipped with one high-voltage system, one traction transformer, one traction converter, two main and auxiliary charging integrated converters, and eight traction motors. Two three-car trains are connected together to form a 3+3 multiple-unit train.
[0032] Reference Figure 5 To meet the power requirements of 3- or 4-car train sets, the lead car needs to be configured as a semi-motor car. The standard train set (8-car train set) is equipped with 3 pantographs and 3 traction units. During normal operation, only 1 pantograph is needed. The MP2 car is a reversing car, so each train set form must have an MP2 car.
Claims
1. A topological structure of a city regional A-type vehicle capable of flexible marshalling, characterized in that: The half motor car TMC is provided with a driver's room at both ends, and one or more motor cars MP with pantographs are arranged in the middle part, when the motor cars MP with pantographs are more than two, the half motor cars M1 are connected between the adjacent motor cars MP with pantographs, and one or more of the motor cars M2; each pantograph is a traction unit, and each traction unit is provided with a high-voltage system, a traction transformer, a traction converter and a traction motor, and the traction units near both ends are provided with main auxiliary integrated converters; When the vehicle is 8-vehicle marshalling, the dynamic-drag form is 6-dynamic and 2-drag, the marshalling form is TMC-MP1-M1-M2-MP2-M1-MP3-TMC, and 3 pantographs are arranged in the whole train, i.e. 3 traction units, each traction unit is provided with a high-voltage system, a traction transformer, 2 traction converters and 8 traction motors, and the traction units of the MP1 and MP3 cars are provided with main auxiliary integrated converters; When the vehicle is 6-vehicle marshalling, the dynamic-drag form is 4-dynamic and 2-drag, the marshalling form is TMC-MP1-M2-MP2-MP3-TMC, and 3 pantographs are arranged in the whole train, i.e. 3 traction units, the traction units of the MP1 and MP3 cars are provided with a high-voltage system, a traction transformer, a traction converter, a main auxiliary integrated converter and 6 traction motors, and the traction unit of the MP2 car is provided with a high-voltage system, a traction transformer, 2 traction converters and 8 traction motors; When the vehicle is 4-vehicle marshalling, the dynamic-drag form is 3-dynamic and 1-drag, the marshalling form is TMC-MP2-MP3-TMC, and 2 pantographs are arranged in the whole train, i.e. 2 traction units, each traction unit is provided with a high-voltage system, a traction transformer, a traction converter, a main auxiliary integrated converter and 6 traction motors; When the vehicle is 3-vehicle marshalling, the dynamic-drag form is 2-dynamic and 1-drag, the marshalling form is TMC-MP2-TMC, and 1 pantograph is arranged in the whole train, and the traction unit is provided with a high-voltage system, a traction transformer, a traction converter, 2 main auxiliary integrated converters and 8 traction motors; The MP2 car is a reversing car.
2. The city regional A-type vehicle topology capable of realizing flexible marshalling according to claim 1, characterized in that: Two 3-vehicle marshalling cars are connected to form a 3+3 double-connection marshalling car.
3. The city regional A-type vehicle topology capable of realizing flexible marshalling according to claim 1, characterized in that: Two 4-vehicle marshalling cars are connected to form a 4+4 double-connection marshalling car.
Citation Information
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