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Pneumatic control system and control method of a pantograph

A pneumatic control system and pantograph technology, applied in electric vehicles, collectors, motor vehicles, etc., can solve the problems of poor safety and reliability, achieve high-speed operation and ensure safety

Inactive Publication Date: 2017-12-26
BEIJING CED RAILWAY ELECTRIC TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The active control system in the prior art has poor security and reliability

Method used

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  • Pneumatic control system and control method of a pantograph
  • Pneumatic control system and control method of a pantograph

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Experimental program
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Effect test

specific Embodiment approach

[0020] The preferred embodiment of the pneumatic control system of the pantograph of the present invention is:

[0021] It includes an air circuit and a control unit, the air circuit inflates the inflation device through a controlled electronic pressure regulating device, and the electronic pressure regulating device adjusts the output air pressure;

[0022] The electronic pressure regulating device includes a pressure sensing device feedback circuit, and the electronic pressure regulating device converts the received current and voltage signals into an air pressure value as an output value of the air circuit;

[0023] The control unit receives the pressure signal provided by the pressure sensor placed between the air outlet of the electronic pressure regulating device and the inflation device and the feedback signal of the feedback circuit of the pressure sensing device, and sends out current and voltage signals for controlling the pressure sensing device.

[0024] A pressure...

specific Embodiment

[0043] Such as figure 1 , figure 2 As shown, the pantograph control system provided by the implementation of the present invention is mainly used to control the size of the air that will come from the locomotive and other wind sources, and finally realize functions such as pantograph lifting strategy and static contact force adjustment during operation. Its main component is a large-flow electronic pressure regulator. Based on the electronic pressure regulator, a control circuit is added, including a pneumatic unit and an electronic unit, to form the entire pantograph control system.

[0044] figure 1 Shown is the schematic diagram of the pantograph control system. The pantograph 5 is driven by an air circuit, and the control of the air circuit is mainly completed by the large-flow electronic pressure regulator 3 . The pressure regulator is placed between the upstream flow regulator 2 and the downstream flow regulator 4 . It ensures adjustment up and down at a constant pr...

Embodiment 1

[0055] Such as figure 2 , including filter 1, pressure reducing valve 2, electronic pressure regulator 3, bow lift throttle valve 4, pressure sensor 5, pressure switch 6, pantograph 7, control unit 8, test valve 11, forming the entire control system , the system realizes the power supply and IO signal connection with the vehicle through the IO terminal 10, and realizes the vehicle communication connection with the vehicle communication network 9.

[0056] The power supply of the electronic pressure regulator 3 is DC24V, the given signal is 4-20mA corresponding to the maximum air pressure controlled by the electronic pressure regulator 3 0-6Bar, and the pressure feedback signal of the electronic pressure regulator 3 is 0-10V corresponding to the electronic pressure regulation The maximum air pressure at the outlet of device 3 is 0-6Bar.

[0057] The power supply of the current detection pressure sensor 5 is DC24V, the detection conversion signal is a current signal, and 4-20m...

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Abstract

The invention discloses a pneumatic control system and a control method of a pantograph. The pneumatic control system comprises an air channel and a control unit, wherein the air channel inflates an inflation device through a controlled electronic pressure regulating device, and the electronic pressure regulating device adjusts output air pressure. The controlled electronic pressure regulating device comprises a pressure sensing device feedback circuit, receives current and voltage signals, converts the signals into an air pressure value and uses the value as an output value. The control unit receives a pressure signal provided by a pressure sensor arranged between an air outlet of the electronic pressure regulating device and the inflation device and a feedback signal of the pressure sensing device feedback circuit and sends out current and voltage signals for controlling the pressure sensing device. Various direct or indirect factors influencing the pantograph and a contact network can be acquired through the control unit, voltage and current signals corresponding to the air pressure and needing to be given are obtained and transmitted to the electronic pressure regulating device and are output to the inflation device. Accordingly, the purpose of guaranteeing that a locomotive runs at high speed safely and reliably is achieved.

Description

technical field [0001] The present invention relates to a pantograph control technology, in particular to a pantograph pneumatic control system and control method. The pantograph is used for rail transit vehicles powered by fixed contact cables such as railways and subways. Background technique [0002] The basic technical parameters of pantographs (such as mass distribution, kinematics and bow geometry) are the basis of pantograph design. With the increase of speed, the traditional method of only changing the basic technical parameters is technically difficult to achieve, and it is also difficult to maintain good flow under high-speed conditions, stable aerodynamic characteristics under two-way operating conditions, and reduce The actual demand of pantograph-catenary noise. This requires the installation of an active control system. [0003] With the active control system, a variety of complex situations can be considered comprehensively, including: [0004] Train speed;...

Claims

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Application Information

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IPC IPC(8): B60L5/32
CPCB60L5/32B60L2200/26
Inventor 徐玉峰吴荣平贾海龙
Owner BEIJING CED RAILWAY ELECTRIC TECH