Downhill running control method and system for train

A technology for operation control and trains, applied in the control system of the transportation center, transportation and packaging, railway car body parts, etc., can solve problems such as train derailment, breakage, coupler wear, etc., to reduce wear, avoid breakage, and ensure smoothness sexual effect

Pending Publication Date: 2022-04-15
CRSC RESEARCH & DESIGN INSTITUTE GROUP CO LTD
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Problems solved by technology

During the operation of heavy-duty locomotives, if the longitudinal impulse generated is too large, the couplers in

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  • Downhill running control method and system for train
  • Downhill running control method and system for train
  • Downhill running control method and system for train

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Embodiment Construction

[0071] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0072] Long downhill slopes are common in freight railways, and the train needs to apply air brakes to ensure deceleration in the long downhill section. Train air braking includes two stages of braking and relief, and the release and refill constraints should be satisfied between adjacent two air brakes to ensure the braking e...

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Abstract

The invention provides a downhill running control method and system for a train. The method comprises the following steps: designing a heavy-load train running control strategy and generating a target speed curve; when the train passes through a long and large downhill line, the abrasion of the train and the line is reduced, and the coupler is prevented from being snapped; when the target speed curve is tracked, the error between the actual tracking speed and the target speed is controlled within a reasonable range, and speed tracking control over the train is achieved. According to the method, firstly, the strictest target speed and position in front of train operation are determined by designing the description form of line data; secondly, according to the strictest target speed and position, the design of a long and large downhill reference speed curve is completed in combination with the line gradient, advanced speed reduction of a long and large downhill section train is achieved, and it is guaranteed that the ATO speed is within the safety range; and finally, according to the air charging time, the air discharging time and the downhill gradient value, the lower bound of the air braking applying and cancelling speed is adjusted, and the smoothness of air braking output is guaranteed.

Description

technical field [0001] The invention belongs to the field of train control, in particular to a method and system for controlling downhill running of a train. Background technique [0002] The automatic train operation (ATO, Automatic Train Operation) system uses ground information to realize traction, braking control and automatic return of the train. The ATO system realizes the automatic driving of the train, completes the automatic driving control of the train under the protection of the automatic train protection (ATP, Automatic Train Protection), and realizes the traction, braking, cruising control of the vehicle. [0003] When the locomotive is running on a long downhill, the force analysis of the locomotive shows that the gravity component along the slope direction increases, resulting in greater acceleration in the forward direction of the locomotive, and the running speed must be adjusted by air braking. While using the air brake, the air pressure keeps decreasing, ...

Claims

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Application Information

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IPC IPC(8): B61L27/20
Inventor 葛鹭明王佳陈志强江明汪知宇王祺王鹏
Owner CRSC RESEARCH & DESIGN INSTITUTE GROUP CO LTD
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