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Method and device for regulating train speed

A speed adjustment and speed technology, applied in transportation and packaging, electric vehicles, vehicle components, etc., can solve problems such as hidden safety hazards, prolong the train control cycle, and a large amount of cyclic calculation, so as to ensure safe operation and shorten the car control cycle. , the effect of reducing the amount of calculation

Inactive Publication Date: 2010-11-03
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] During the research and practice of the prior art, the inventors of the present invention found that the train control speed curve is calculated in one cycle. Due to the segmented calculation, the calculation amount of the cycle is large, resulting in a vehicle control cycle that cannot meet the 200ms-300ms , it may prolong the train control period, and there are potential safety hazards with the increase of train speed

Method used

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  • Method and device for regulating train speed
  • Method and device for regulating train speed
  • Method and device for regulating train speed

Examples

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Embodiment 1

[0035] see figure 2 It is a flowchart of an embodiment of a speed control method of the present invention;

[0036] According to the train braking equation, the calculation of the target speed-distance curve is related to the deceleration performance of the train, the line parameters (external resistance), and the target distance, and the deceleration performance of a specific type of train is fixed, so it can be pre-calculated according to this. The target speed-distance control curve in the ideal state is used as the predetermined target speed-distance curve. The ideal state can be understood as starting and running the train without external resistance, and then correcting the predetermined target speed-distance curve according to the line parameters received by the train to obtain the current Actually control the speed of the car and control the train.

[0037] Step 101, obtaining target distance and route data;

[0038] During the operation of the train, the train cont...

Embodiment 2

[0060] see image 3 It is a structural diagram of an embodiment of a speed control device of the present invention;

[0061] The embodiment of the present invention adopts the device of the method provided by the above-mentioned embodiment; because the deceleration performance for a specific type of train is fixed, an ideal target speed distance control curve can be calculated in advance according to this, and then according to the train received Correct the curve accordingly to obtain the current actual control speed, and control the train.

[0062] An acquisition unit 201, configured to acquire target distance and route data

[0063] A calculation unit 202, configured to use the line data to calculate the current external resistance;

[0064] In the train running process, the speed adjustment device obtains the line data and then performs a rough calculation. For example, the line data shows that the front is an uphill slope with a slope of 10 degrees. ) to calculate an a...

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Abstract

The invention discloses a method for regulating train speed, comprising the steps of: acquiring target distance and line data; calculating the current external resistance by using the line data; modifying a predetermined target speed distance curve according to the external resistance and the target distance to obtain the current actual train control speed; and controlling the train speed according to the actual train control speed. The embodiment of the invention also provides a corresponding device. By prestoring an ideal train control curve which only takes the brake performance of the train into account without considering the external resistance, the actual train control speed can be obtained just by modifying the current train control speed in the ideal train control curve in each train control period, thereby reducing the calculated amount, shortening the train control period and ensuring the safe operation of the train.

Description

technical field [0001] The invention relates to the technical field of train control, in particular to a train speed adjustment method and device. Background technique [0002] The speed of the train needs to be controlled during the running of the train, because the reliability of the train running speed control is the guarantee of the safe running of the train. Obstacles on the train or track or station, etc.), the speed of the train itself and the line parameters (slope, curve, tunnel, etc.) in the target distance calculate an actual control speed, and the train will The speed of the train is controlled to ensure that the train will not collide with the target ahead; the actual control speed and the distance of the train relative to the target ahead constitute a target speed-distance curve such as figure 1 As shown, when the actual speed at the current position of the train exceeds the control speed on the curve, the train will take brakes to ensure that the train runs b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61L27/04B60L15/20
CPCY02T10/72
Inventor 方旭亮
Owner HUAWEI TECH CO LTD
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