Electropneumatic brake method and system with fault complementation control based on single-axle control

An electro-pneumatic braking and single-axis control technology, which is applied in railway braking systems, braking safety systems, etc., can solve problems such as complex air circuits of electro-pneumatic braking units, high power driving solenoid valves, heat generation and electromagnetic interference, etc. , to achieve the effect of simplifying the maintenance workload, fast control response and reducing the degree of impact

Inactive Publication Date: 2009-08-19
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of the existing electro-pneumatic braking unit, such as complex gas circuit, large volume and weight, high power to drive the solenoid valve, heat generation and electromagnetic interference, complex control mode and low precision, and to invent a Electropneumatic braking method and system with fault complementary control based on single-axis control

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  • Electropneumatic brake method and system with fault complementation control based on single-axle control
  • Electropneumatic brake method and system with fault complementation control based on single-axle control
  • Electropneumatic brake method and system with fault complementation control based on single-axle control

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Embodiment 2

[0050] Such as figure 2 , 3 , 4 shown.

[0051] An electro-pneumatic braking system with fault complementary control based on single-axis control. Each axle on each bogie is connected to a brake cylinder 1, and the intake ends of the two brake cylinders 1 are connected through their respective mutual The vent valve 2 and relay valve 3 connected in series are connected with the brake air cylinder 4 that provides the pressure air source, and a communication valve 5 is set between the brake cylinders 1 on the same bogie for controlling the braking of two axles . Such as figure 2 As shown, in specific implementation, in order to provide corresponding control signals for the control circuit, the brake cylinder 1 is connected with a brake pressure sensor 6 that provides the brake pressure value during braking to the control circuit, and the air outlet pipe of the brake air cylinder 4 A pressure sensor 7 that senses the pressure of the brake air cylinder is installed. In addit...

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Abstract

The invention relates to an electropneumatic braking method and an electropneumatic braking system with fault complementation control on the basis of single-axis control, which is characterized in that two independent embedded type electropneumatic braking units are adopted, and each unit comprises a control circuit, a piezoelectric relay valve, a piezoelectric ventilation valve and a corresponding pressure sensor; the two units are managed by a communication and management circuit and arranged near a steering frame; and two axles on the same steering frame are controlled by the two embedded type electropneumatic braking units respectively. The method and the system can greatly reduce the volume of a cylinder and a pipeline by directly controlling a single braking cylinder, and have the advantages of rapid control response, high precision and good safety.

Description

technical field [0001] The present invention relates to a rail vehicle braking control method and system, in particular to a single-axis control rail vehicle braking method and system, in particular to an electro-pneumatic braking method with fault complementary control based on single-axis control and system. Background technique [0002] Microcomputer-controlled electropneumatic braking system is widely used in high-speed EMUs and urban rail vehicles. It is the foundation and core braking of the vehicle. Its function is to convert the electrical signal of the braking demand into the brake cylinder pressure that controls the braking force according to the control requirements. , cooperate with other braking forces, such as dynamic braking, to complete the braking control of the vehicle. [0003] There are two types of vehicles used in the existing high-speed EMUs and urban rail vehicles, namely the EMU and the trailer. Due to the different types and weights of the vehicle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T17/22B61H11/00
Inventor 游有鹏姚恩涛
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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