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Electric locomotive auxiliary control unit MVB (multifunction vehicle bus) network card

A technology of auxiliary control unit and electric locomotive, applied in the field of electric communication technology with patent classification number H04, which can solve the problems of equipment load and large volume, and achieve the effects of low cost, low data error rate and high conversion efficiency

Active Publication Date: 2013-09-18
CRRC DALIAN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Since the current gateway mostly adopts the design scheme of CPU+MVBC, in order to design the core control chip and peripheral auxiliary circuits, the equipment load is large, and an additional power supply is required at the same time, which has some limitations on the hardware layout of the entire locomotive control system.

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  • Electric locomotive auxiliary control unit MVB (multifunction vehicle bus) network card
  • Electric locomotive auxiliary control unit MVB (multifunction vehicle bus) network card

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Embodiment Construction

[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the drawings in the embodiments of the present invention:

[0019] Such as figure 1 Shown: an AC drive electric locomotive auxiliary control unit MVB network card, mainly including:

[0020] As the core FPGA chip of the network card, the chip is responsible for the conversion of RS485 / CAN protocol signal and MVB protocol signal.

[0021] It also includes an MVB operating circuit and a CAN / RS485 operating circuit cooperating with the FPGA chip.

[0022] The MVB operating circuit mainly has: an MVB bus interface responsible for the communication between the network card and the outside world. Preferably, the interface is a 48pin interface, which is convenient to match with an external motherboard, and a 3U standard interfac...

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Abstract

The invention discloses an electric locomotive auxiliary control unit MVB (multifunction vehicle bus) network card which comprises an FPGA (field programmable gate array) chip as the core of the network card, an MVB operating circuit and a CAN / RS485 (controller area network / RS485) operating circuit. The MVB operating circuit and the CAN / RS485 operating circuit are matched with the FPGA chip. The FPGA chip, the MVB operating circuit and the CAN / RS485 operating circuit jointly realizes MVB / CAN protocol conversion. The alternating-current-transmission electric locomotive auxiliary control unit MVB network card has the advantages that no external wiring spaces are occupied, the network card is completely arranged inside an auxiliary control unit case, high in conversion efficiency and low in data error rate, the signal requirements of the locomotive can be fully satisfied, and the network is lower in cost compared with other like products while the same even better control effect is achieved.

Description

technical field [0001] The present invention relates to patent classification number H04 electric communication technology; H04L transmission of digital information, such as telegraph communication; H04L12 / 00 data exchange network; H04L12 / 02 components. Background technique [0002] The auxiliary control unit is a device used for power supply of the auxiliary part of the locomotive, and is used to convert the DC voltage to 380V AC to supply loads such as fans, water pumps, and oil pumps. Auxiliary control unit-MVB-3U gateway board is a plug-in board of the auxiliary control unit. Through protocol conversion, reliable data connection and communication between MVB bus and CAN bus are realized. Designed according to the specification requirements of IEC61375-1 on the train bus, it meets the requirements of data exchange between the train auxiliary control unit control unit and the MVB bus. Multifunctional vehicle bus MVB is widely used in train bus control because of its high ...

Claims

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Application Information

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IPC IPC(8): H04L12/02
Inventor 李东丛巍田长安
Owner CRRC DALIAN INST CO LTD
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