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Dynamic traffic direction reassessment method after changing for railway traffic vehicles

A technology for rail transit vehicles and power operation, which is applied to vehicle components, electric vehicles, control drives, etc., and can solve problems such as complex operations, solid gears, and motor ring fires

Inactive Publication Date: 2005-03-16
CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In fact, the problems caused by transposition and reverse operation during operation are: 1. It will cause damage to the gears between the motor and the wheel set. In severe cases, it may cause the gears to freeze, which will seriously affect the safety of operation.
2 is to cause the motor ring fire on the AC / DC drive vehicle and seriously damage the motor
3 is to cause a huge reverse force, resulting in a huge vehicle impulse
4 is to cause the control system out of control
[0004] The Lanjian high-speed EMU running on the Guangzhou-Shenzhen Railway in my country has a microcomputer control system of MITRAC control and communication system. Once the direction is set, it cannot be changed during operation. It must stop and set the direction again under the condition of zero speed. Although the failure and problems are avoided, the operation is complicated
Although domestic locomotives and vehicles have been considered, the operation is also complicated and the occurrence of problems cannot be completely avoided, and the degree of automation and intelligence is also low

Method used

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  • Dynamic traffic direction reassessment method after changing for railway traffic vehicles

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Comparison scheme
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Embodiment Construction

[0030] like figure 1 As shown, a method for re-determining after the power running direction of a rail transit vehicle is changed is characterized in that it includes a speed threshold register 1, a fault clearing signal register 2, a direction normal setting memory 3, an operating speed register 4, and a forward bit signal Register 5, zero speed register 6, delay confirmation flip-flop 7, NOT gate 8, first comparator 9, AND gate 10, selection switch 11, second comparator 12 and direction lock logic controller 13; Wherein:

[0031] The speed threshold register 1 receives and stores the set speed threshold data and inputs the data to the first input terminals of the first comparator 9 and the second comparator 12; the zero speed register 6 receives and stores zero speed signal data;

[0032] The fault clearing signal register 2 receives and stores the action signal from the "fault clearing" button of the driver's console, and the signal is input to the delayed confirmation fli...

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PUM

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Abstract

The invention relates to a kind of returning fixing method of power running direction of rail transportation vehicle after it is changed . It includes register of speed valve value , register of troubling removing signal , memory of direction normal establishment , register of running speed , register of forward signal , register of zero speed , flopover of time delay confirming , negater , AND gate , alternating switch , the second comparator and logic controller of direction lock . When the AND gate outputs an effective signal and the second comparator outputs a permitting signal of direction choice , the logic controller of direction lock will output forward direction effective signal , otherwise it will output no direction signal . When the AND gate outputs an invalid signal and the second comparator outputs a permitting signal of direction choice , permitting to choose forward and backward direction in normal situation , otherwise forbid the signal to choose signal , maintain the original established direction , if change the direction at this moment , lock it to be no direction . Thus it can effectively avoid the serious result caused by wrong operation , and simplify the driver's operation .

Description

technical field [0001] The invention relates to a method for controlling the power running direction of a rail transit vehicle, in particular to a method for re-determining after the power running direction of a rail transit vehicle is changed. Background technique [0002] The running direction (forward running, backward running) in the power running of rail vehicles is strictly limited, that is, running in the opposite direction when there is speed is strictly prohibited. In fact, the problems caused by transposition and reverse operation in operation are: 1. cause damage to the gear between the motor and the wheel set, and seriously can cause the gear to die, seriously affecting the safety of operation. The 2nd, cause motor ring fire on AC / DC drive vehicle, seriously damage motor. 3 is to cause a huge reverse force, resulting in a huge vehicle impulse. 4 is to cause the control system to lose control. [0003] Regarding this problem, the driver was originally required ...

Claims

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Application Information

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IPC IPC(8): B60L3/00B60L15/00
Inventor 李蔚
Owner CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
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