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An electrical control method for urban rail vehicles based on a logic control unit

A logic control unit, urban rail vehicle technology, applied in railway signaling and safety, etc., can solve the problems of complex electrical control system, many wiring, increase procurement and labor costs, etc., to reduce bus communication data, reduce performance pressure, use Safe and reliable effect

Active Publication Date: 2016-06-29
CRRC NANJING PUZHEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The redundant design of the circuit makes the electrical control system more complicated, with more wiring, which increases the procurement and labor costs. At the same time, the higher quality requirements for the relay also increase the manufacturing cost of the urban rail vehicle. Completely solve the problem of relay failure

Method used

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  • An electrical control method for urban rail vehicles based on a logic control unit
  • An electrical control method for urban rail vehicles based on a logic control unit
  • An electrical control method for urban rail vehicles based on a logic control unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Such as figure 1 , figure 2 , Figure 4 and Figure 6 As shown, the present embodiment is based on the logic control unit's urban rail vehicle electrical control method, and the steps are as follows: set the activation state of the low-voltage undervoltage signal S1 of the train to 0, and the inactive state to 1, and the train control and diagnosis system collects the low-voltage undervoltage of the train The state of the signal is sent to the logic control unit, and the logic control unit judges whether the train has a low-voltage undervoltage signal activated according to formula (1) (ie, S1=0). When S1=1, the train does not have a low-voltage undervoltage signal, and enters the next step; Assuming that the activated state of the train cab S21 is 0 and the inactive state is 1, the train control and diagnosis system collects the state of the train cab and transmits it to the logic control unit, and the logic control unit judges the train driver according to the for...

Embodiment 2

[0054] The difference between this embodiment and Embodiment 1 is that the logic control unit judges whether the train has a low-voltage undervoltage signal activated according to formula (1) (ie, S1=0). When S1=0, the train low-voltage undervoltage signal is activated, and the logic control The unit delays 45 minutes to output the sleep command to the train control system, and the train control system controls the train to sleep.

Embodiment 3

[0056] The difference between this embodiment and Embodiment 1 is that the logic control unit judges whether the train driver’s cab is activated according to the (2) formula (that is, S21=0). When S21=0, the train driver’s cab is activated and enters the next step; set the train sleep The activated state of the button S3 is 0, and the inactive state is 1. The train control and diagnosis system collects the state of the train sleep button and sends it to the logic control unit. The logic control unit judges whether the sleep button is activated according to formula (5) (ie, S3=0). When S3=0, the train sleep button is activated, and the logic control unit immediately outputs a sleep command to the train control system, and the train control system controls the train to sleep.

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Abstract

The invention relates to an urban rail vehicle electric control method based on a logic control unit. The method includes the following steps that (1) the logic control unit judges whether a low-pressure under-pressure signal of a train is activated or not, and the step (2) is executed when S1=1; (2) the logic control unit judges whether a train cab is activated or not, the step (3) is executed when S21=0, and the step a is executed when S21=1; according to the step a, the logic control unit judges whether a high-pressure signal of the train exists, the step (3) is executed when S22=0, and the step b is executed when S22=1; according to the step b, the logic control unit judges whether a middle-pressure signal of the train exists or not, the step (3) is executed when S23=0, and the logic control unit controls the train to be in a sleeping state when S23=1; (3) the logic control unit judges whether a sleeping button is activated or not, the logic control unit controls the train to be in the sleeping state when S3=0, and operation is stopped when S3=1. By means of the urban rail vehicle electric control method, the bus communication data are reduced, the failure rate of an electric control system is reduced remarkably, and the method is safe and reliable to implement.

Description

technical field [0001] The invention relates to an electrical control method for urban rail vehicles based on a logic control unit. Background technique [0002] At present, the electrical control of urban rail vehicles generally adopts the relay hard-wire control method, such as image 3 train sleep control shown, and Figure 5 As shown in the traction control, this method can realize the increase of new control functions by adding corresponding relays. The more control functions, the more the number of relays will be. However, in the urban rail vehicle environment, the relays are prone to aging, electric shock and adhesion. Position and other phenomena are likely to affect the function of the entire electrical control system, and then affect the operation of urban rail vehicles. In order to ensure the reliability of the electrical control of urban rail vehicles and reduce the failure rate of relays in the electrical control system, high-quality relays must be used. Theref...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61L23/00
Inventor 陈美霞夏益韬杨伟吕红强黄涛张军贤黄苏平
Owner CRRC NANJING PUZHEN CO LTD
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