Track traffic train traction braking system and method with integrated traction brake control

Abstract

The invention discloses a track traffic train traction brake system and method with integrated traction brake. The system comprises a central control system, a brake executing device and a traction executing system, wherein the brake executing device and the traction executing system are respectively connected to the central control system; the central control system comprises a brake control module which is used for controlling the execution of electropneumatic hybrid brake, and a traction control module which is used for controlling the traction executing device to execute traction or electric braking operation; the central control system receives a traction command and a brake command of trains from a train communications network in real time, and respectively controls the brake executing device and the traction executing device to execute the traction operation or the electropneumatic hybrid brake operation through the brake control module and the traction control module. According to the method, the system is used for executing traction and brake. The track traffic train traction brake system disclosed by the invention has the advantages of being simple in structure, low in required cost, capable of realizing real-time traction and brake control, and high in execution precision and efficiency in the whole electropneumatic hybrid brake process.

Description

technical field [0001] The invention relates to the technical field of rail transit trains, in particular to a rail transit train traction braking system and method with integrated traction braking control. Background technique [0002] The traction and braking of trains in rail transit trains are respectively controlled and executed through the traction control system and the braking control system. The traction control system and the braking control system distributed in each vehicle unit are connected to form a train network through the vehicle bus. Trains exchange information through the train communication network. There are mainly two control modes for the traction and braking of trains, one is the automatic driving mode, and the traction / braking command is issued by the automatic driving system of the train; the other is the manual mode, which is operated by the driver under the condition of automatic protection Driver controllers for traction and braking. Such as ...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned traditional train traction braking control system transmits control data through the network control system. Since there is a certain time delay in network data transmission, during the initial rise of the braking force of the electro-pneumatic hybrid braking, the braking level change phase, and the parking power The stage of braking to air braking will affect the accurate execution of braking, specifically: in the initial rising stage of braking force, due to the time when the traction force fades, the data between the traction control system and the braking control needs to be transferred through the network control system, and There is a certain delay in data transmission, so redundant air brake overshoot or long idling distance often occur, even through parameter setting and adjustment, this problem cannot be completely solved; during the stage of braking level change, due to the Braking force feedback is not timely, so additional air braking often occurs, and it often superimposes with electric braking to cause fluctuations and impacts of train braking; And the delay of the electric braking force feedback will also cause the total braking force obtained by superimposing the air braking force and the electric braking force in the conversion stage to fail to respond to the braking command in time, resulting in the need for constant adjustment of the braking command, resulting in braking Inaccurate distance calculation affects accurate parking

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