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Safety architecture of locomotive traction control unit

A traction control unit and control unit technology, applied in computer control, locomotive, program control, etc., can solve problems such as failure to quickly locate fault points and high failure rate, improve reliability and safety, reduce machine breakage risk, reduce The effect of the risk of failure

Active Publication Date: 2020-10-16
CRRC YONGJI ELECTRIC CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention solves the problems of high failure rate of existing traction control units and the inability to quickly locate the fault point after failure, and provides a safety framework for locomotive traction control units, Designed to improve the reliability and safety of traction control units

Method used

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  • Safety architecture of locomotive traction control unit
  • Safety architecture of locomotive traction control unit
  • Safety architecture of locomotive traction control unit

Examples

Experimental program
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Embodiment Construction

[0016] The safety architecture of the locomotive traction control unit includes a diagnosis management unit, a control unit, a communication unit, a signal input and output unit, and a power supply unit; it can be divided into 22 boards according to the number of boards, and the functions of each board are combined with the attached figure 2 To elaborate:

[0017] 1) Diagnostic snap-in

[0018] The diagnostic snap-in has one board. The function of this board is to collect the hardware status of each board of other units, diagnose board faults, manage each board, make the best decision for the traction control unit, and improve the reliability of the TCU;

[0019] 2) Control unit

[0020] The control unit has six boards, the main control board 1 and the main control board 2 form the main control unit, the four-quadrant control board 1, the four-quadrant control board 2, the inverter control board 1 and the inverter control board 2 form the slave control unit;

[0021] ①The ...

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Abstract

The invention relates to a locomotive traction control unit, in particular to an safety architecture of the locomotive traction control unit. The problems that an existing traction control unit is high in fault rate, and a fault point cannot be quickly positioned after a fault occurs are solved. The safety architecture of the locomotive traction control unit comprises a diagnosis management unit,a control unit, a communication unit, a signal input and output unit and a power supply unit, the control unit adopts a control strategy of a master control unit and a slave control unit; the controlunit, the communication unit, the signal input and output unit and the power supply unit have redundancy design. Reliability is guaranteed through hardware diagnosis and software diagnosis, the diagnosis management unit detects the states of other units, the control unit detects the states of the communication unit, the signal input and output unit and the power supply unit in real time, softwaresets multiple protection measures, and double-layer guarantee is formed in the aspect of safety. The safety architecture is suitable for the electric locomotive of which the system topology is one-integral-one-inverse or two-integral-two-inverse.

Description

technical field [0001] The invention relates to a locomotive traction control unit, in particular to a safety framework of the locomotive traction control unit. Background technique [0002] As the country's important infrastructure and popular means of transportation, railways are at the backbone of the comprehensive transportation system. As the control device of the railway traction system, the Traction Control Unit (TCU for short) plays an important role in the reliability and safety of the system. [0003] During the actual operation of the locomotive, the TCU failure rate is high, and the fault point cannot be quickly located after the fault, and some faults cannot be detected. Contents of the invention [0004] The invention solves the problems that the existing traction control unit has a high failure rate and cannot quickly locate the fault point after a failure, provides a safety framework of the traction control unit of a locomotive, and aims to improve the rel...

Claims

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Application Information

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IPC IPC(8): B61C17/00G05B19/042
CPCB61C17/00G05B19/0425
Inventor 张巧娟王力苏鹏程葸代其于森林张瑞峰
Owner CRRC YONGJI ELECTRIC CO LTD
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