Logic control unit and logic control method for trains

A technology of logic control unit and train, applied in the field of rail vehicle control system, can solve the problems of prone to jamming, poor static head contact, accelerated aging speed, etc., to improve reliability and safety, rich communication interfaces, and satisfy communication Effect

Pending Publication Date: 2019-04-26
CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the relay works for a long time under high temperature, humidity and vibration environment, the aging speed is greatly accelerated, and it is

Method used

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  • Logic control unit and logic control method for trains
  • Logic control unit and logic control method for trains
  • Logic control unit and logic control method for trains

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Embodiment Construction

[0028] Specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0029] In the description of the present invention, it should be understood that the terms "first", "second" and other indicative words are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must Having a particular orientation, being constructed and operating in a particular orientation, and therefore not to be construed as limiting the invention.

[0030] The invention provides a logic control unit for trains designed with non-contact logic control technology. The logic control unit adopts non-contact logic control technologies such as optocoupler and field response transistor (MOSFET) to replace the existing relay scheme. Software logic realizes direct control and drive of components such as train contactors and electro-pneumatic ...

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Abstract

The invention relates to a logic control unit and a logic control method for trains. The logic control unit (LCU) adopting a hot standby redundant design comprises an input module, an output module and at least two redundant designed master control modules, wherein the output end of the input module is respectively connected with each master control module, and the output end of each master control module is connected with the output module; the input module is used for collecting input direct current voltage information and transmitting to the master control module; the master control modulesare used for acquiring direct current voltage signals, calculating to generate a load-driving control signal and transmitting to load through the output module; and the input module, the output module and the master control modules can be configured into a double 2-vote-2 redundant structures. Each module of the system brings own self-diagnosis circuit, failure diagnosis and redundant switching of each redundant circuit can be realized, and the system reliability can be improved; and the system is configured into to double 2-vote-2 structure, the system safety can be further improved.

Description

technical field [0001] The invention belongs to the technical field of rail vehicle control systems, and in particular relates to a logic control unit and a logic control method for trains. Background technique [0002] There are a large number of contact control methods such as relays in rail trains. These devices are connected by cables to form a logic control system for train operation and are used to transmit control signals. The work of the huge and complex electrical system directly affects the safety of train operation. However, relays work for a long time in high temperature, humidity, and vibration environments, and the aging speed is greatly accelerated, and they are prone to failures such as stuck positions and contact oxidation, which eventually lead to poor contact or even failure of the dynamic and static heads. According to statistical analysis, more than 60% of vehicle failures are caused by relay failures. There are many types of rail trains and complex co...

Claims

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Application Information

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IPC IPC(8): B61L27/00
CPCB61L27/20
Inventor 秦姣梅李震郝玉福张俊杰盖猛
Owner CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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