Emergency traction circuit, method and train based on hard wire control

Abstract

The invention discloses an emergency traction circuit based on hard wire control, which can determine the traveling direction of a train by identifying the hard wire in a first direction and identifying the hard wire in a second direction. Train occupancy grouping can be determined by the hard line of occupancy identification. The relationship between the traction motor steering of each power vehicle and the traction motor steering of the occupying power vehicle can be identified by the first steering identification hardwire and the second steering identification hardwire. Therefore, regardless of the marshalling form of the train, Whether marshalling is fixed, Applying this emergency traction circuit, It can synthesize the train direction, train occupancy grouping and the relationship between the traction motor steering of each power car and the traction motor steering of each power car to correspondingly control the traction motor of each power car to match the actual running direction, so as to effectively improve the applicability of the emergency traction circuit based on the hard wire control. In addition, the invention also discloses an emergency traction method based on hard wire control and a train, and the effect is as above.

Description

technical field [0001] The invention relates to the field of rail transit, in particular to an emergency traction circuit, method and train based on hard wire control. Background technique [0002] When the train is running on the main line, the passenger density is very high and the time interval is very short. Once a train failure occurs and the line is blocked, it is very likely to cause a large area of ​​delays for subsequent vehicles, which will bring great inconvenience to passenger travel and the operation and management of major railway bureaus. . [0003] In the existing technology, in order to avoid the problem of large-scale delays of subsequent vehicles due to train failures blocking the line, train products need to be equipped with emergency traction circuits based on hard-line control to operate in an emergency when the train network control system is abnormal. However, the current emergency traction circuit based on hard wire control is generally based on the...

AI Technical Summary

Problems solved by technology

However, the current emergency traction circuit based on hard wire control is generally based on the intersection of the direction of travel signals in the double-connected cable to realize direction identification, so as to control the work of the traction motors of each power vehicle, and is only suitable for symmetrical formations (such as , for an 8-section train, the 1-4 sections and 8-5 sections are symmetrically arranged), and the power distribution train with a fixed formation

As for the asymmetric form of EMU trains, especially when the formation is not fixed, the rotation direction of the traction motor inside the power car varies with the position of the power car in the formation. When the train is moving forward, some power The traction motor inside the vehicle may rotate forward, and the internal traction motor of some power vehicles may reverse, so it is no longer possible to realize the direction recognition based on the fixed crossover of the direction signal in the reconnection cable, resulting in the existing emergency control system based on hard wire control. The traction circuit is no longer applicable

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