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Novel safety braking model and method for parking in movement authority limit distance

A technology for safe braking and mobile authorization, used in braking safety systems, railway braking systems, railway signaling and safety, etc.

Active Publication Date: 2016-10-26
SHANGHAI ELECTRIC THALES TRANSPORTATION AUTOMATION SYST CO LTD
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  • Summary
  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

The standard model cannot meet the customer's requirements for efficient entry into the station, and the low-speed control of the train is also a big challenge for the train speed control system

Method used

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  • Novel safety braking model and method for parking in movement authority limit distance
  • Novel safety braking model and method for parking in movement authority limit distance
  • Novel safety braking model and method for parking in movement authority limit distance

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Embodiment Construction

[0052] The present invention will be further described below in conjunction with accompanying drawing.

[0053] In the prior art, when the train travels between platforms, the train traction enable is always activated. After the train arrives at the platform and stops quasi-stationary, the traction enable is removed; after the stop is over, the train departure condition is met, the traction enable is activated again, and the train departs to the next platform. After studying the actual train parking process, it is found that it is not necessary to maintain traction during the normal deceleration process. The train speed automatic control module can only use braking and taxiing commands to decelerate and stop without traction force during the entire process of decelerating to stopping. Once the traction is cut off, there will be no uncontrolled acceleration failure stage, thus reducing the safety protection distance while meeting the operation control efficiency requirements. ...

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Abstract

The invention discloses a novel safety braking model, a novel safety braking model based safety interval distance shortening method, a novel safety braking model and classic safety braking model based method for parking in a movement authority limit distance and a traction removal / activation device. The novel safety braking model is distinguished from a classic safety braking model defined by the standard IEEE_1474.1-2004 and includes a coasting phase and an emergency braking ratio guaranteed braking phase to eliminate an out-of-control acceleration phase in the classic model by traction removal. The safety interval distance can be effectively shortened while parking point approaching speed is increased.

Description

technical field [0001] The invention relates to the field of track communication control. Background technique [0002] At present, the train signal control system refers to the standard IEEE_1474.1-2004 (IEEE Communication-Based Train Automatic Control System Efficiency and Functional Requirements Standard) to define and implement a safe braking model (hereinafter referred to as the classic safe braking model), which defines How to calculate the minimum protection distance (safety interval) required under the most unfavorable conditions between the train and the obstacle in front according to the current train speed. Thereby ensuring that after the emergency braking of the train is triggered, the train can stop before hitting the obstacle in front. The classic safe braking model includes five stages: [0003] 1) The on-board automatic train protection system (ATP) triggers the emergency braking stage; [0004] 2) The stage of traction removal (runaway acceleration) of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61H11/00B61L23/00B60T17/18
CPCB60T17/18B61H11/00B61L23/00
Inventor 黄雷高翔胡海虹
Owner SHANGHAI ELECTRIC THALES TRANSPORTATION AUTOMATION SYST CO LTD
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