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Automatic train parking control method

A control method and automatic train technology, applied in the direction of automatic starting devices, brakes, vehicle components, etc., can solve the problems of too long parking distance, reduce the operating efficiency of the rail transit system, etc., and achieve the effect of improving economic benefits

Active Publication Date: 2016-12-07
SHANGHAI FUXIN INTELLIGENT TRANSPORTATION SOLUTIONS
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

The traditional control method will cause the rail train to stop too far / too close to the obstacle, reducing the operating efficiency of the rail transit system
Especially in the "GB-50157 Metro Design Code" stipulates: "The effective length of the turnback line and the stop line of the faulty train (excluding the stall length) should not be less than the length of the train + 50m." Traditional control methods often cannot meet this requirement

Method used

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Embodiment Construction

[0028] The automatic train braking control method provided by the present invention includes:

[0029] 1) Calculate the emergency train braking trigger curve, referred to as the EB trigger curve;

[0030] The first stage is the out-of-control acceleration stage, figure 1 Phase A and Phase B are shown;

[0031] a 1 =a run –a grade ;

[0032] d 1 =v x ×t 1 +(a 1 ×t 1 2 / 2);

[0033] v 1 =v x +a 1 ×t 1 ;

[0034] The second stage is the idle stage, figure 1 Stage C and Stage D are shown;

[0035] a 2 =-a grade ;

[0036] d 2 =v 1 ×t 2 +(a 2 ×t 2 2 / 2);

[0037] v 2 =v 1 +a 2 ×t 2 ;

[0038] The third stage is the EB braking stage (including figure 1 Middle E stage)

[0039] a 3 =-a gebr -a grade ;

[0040] d3 =v 2 × v 2 / (2×a 3 );

[0041] The meanings of the above parameter values ​​are as follows:

[0042] a run , the most unfavorable runaway acceleration of the train;

[0043] a grade , the most unfavorable slope at the current po...

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Abstract

The invention discloses an automatic train parking control method. The automatic train parking control method includes: calculating an emergency brake trigger curve of a train to generate a speed-brake distance relation curve of the train and generating a target acceleration-brake distance relation curve of the train according to the speed-brake distance relation curve of the train; by the arrangement of control threshold of the train, generating the speed-brake distance relation curve of the train, calculating in real time whether acceleration and the brake distance of the train are conform to the target acceleration-brake distance relation curve of the train or not, if not, automatically controlling the train to aim at the acceleration with ATO (assisted take off) till pull up. With the method, construction cost of train tracks can be reduced on the premise of not lowering running efficiency of the train.

Description

technical field [0001] The invention relates to the field of rail traffic control, in particular to an automatic train stop control method. Background technique [0002] In the field of rail transit / transportation and industrial control, the control system has the functional requirements of automatically controlling the train to start, run, and stop according to regulations or requirements. Automatic control of trains is generally achieved by controlling the acceleration of the traction / braking force or the rotational speed of the wheels, which is manifested as controlling the traction, coasting, and braking of the train. [0003] In some safety-critical systems in the above-mentioned fields, such as the subway system, the signal system needs to be responsible for safe driving, and various restrictions will be imposed on driving safety. Therefore, the signal system needs to protect the train in real time in accordance with the safety design restrictions during driving contr...

Claims

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Application Information

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IPC IPC(8): B60T7/12B60T8/32B61L23/14
CPCB60T7/128B60T8/3235B61L23/14
Inventor 陈丽君杜建新王庆胜朱罕
Owner SHANGHAI FUXIN INTELLIGENT TRANSPORTATION SOLUTIONS
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