Locomotive electronic control air brake system central control unit based on microcomputer network control

A central control unit, electronically controlled air brake technology, applied in general control systems, control/regulation systems, test/monitoring control systems, etc., can solve problems such as vehicle brake asynchrony, reduce destructive force, reduce The effect of less wear and shortened time

Inactive Publication Date: 2017-09-08
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is still a certain delay time between the combined train locomotive and the braking commands of each vehicle, which cannot fundamentally solve the problem of asynchronous braking of each vehicle.

Method used

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  • Locomotive electronic control air brake system central control unit based on microcomputer network control
  • Locomotive electronic control air brake system central control unit based on microcomputer network control
  • Locomotive electronic control air brake system central control unit based on microcomputer network control

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Embodiment Construction

[0053] The development of this invention was partially supported by the National Natural Science Foundation of China projects 61379111, 61672537, 61672539, 61402538, 61403424, 61602529, 61502055 and 61503048.

[0054]The invention controls the working mode and process conversion of the ECP system, and realizes it by way of LonWorks network command. After the system is powered on, the ECU is in the auxiliary state by default. The flight attendant can set the ECU to the primary state through LCDM, that is, as the master ECU. When the ECU confirms that there is no other master ECU in the network, the ECU enters the primary state, and at the same time Send LonWorks network commands for full braking, train line voltage off, and entering initialization mode. The function of the invention runs through almost the whole process of locomotive operation, including the system initialization stage, equipment registration, leading control sequence and its preliminary preparation and data co...

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Abstract

The present invention discloses a locomotive electronic control air brake system central control unit based on microcomputer network control. The control unit forms the core part of an ECP system, and comprises a power module, a network card module, an IO module, a CPU control module and a communication module, etc. Through adoption of a front outgoing line mode, the work of an HEU device with the AAR4200 standard is mainly completed to perform communication of other control portions on the locomotive (such as CCU and brake) to obtain an ECP system initialization and control command and collect the vehicle state so as to complete the functions of ECP fault diagnosis and ECP system operation log recording, etc. The ECU has an MVB port to connect with a locomotive bus, and has a synchronization high-speed RS-422 interface and an asynchronization communication interface to connect with the BCU and the display screen of the brake system.

Description

technical field [0001] The invention relates to a central control unit of a locomotive electronic control air brake system based on microcomputer network control. Background technique [0002] The world's rail transit is developing toward the goal of "heavy-haul trains, high-speed passenger transport". However, the improvement of cargo weight and train speed makes locomotives put forward higher requirements on the effective and reliable performance of braking control. The traditional truck braking system relies on compressed air to transmit braking commands. Due to the low braking wave velocity, the synchronization of the braking of each vehicle is poor, resulting in excessive longitudinal impulse of the train, which affects the safety and operating efficiency of the train. To solve the above problems, power distribution wireless reconnection synchronous control technology (LOCOTROL) or train ECP electropneumatic braking technology can be used. [0003] Although LOCOTROL t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02
CPCG05B23/0213
Inventor 张晓勇张帅黄志武周峰蒋富杨迎泽高凯李烁彭军刘伟荣
Owner CENT SOUTH UNIV
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