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Vehicle brake method of railway vehicle bogie-controlled electronic brake control system

A technology of electronic braking and rail vehicles, which is applied in the direction of railway braking systems, braking transmissions, brakes, etc., can solve the problems of difficult control of vehicle braking distance, difficult to achieve precise control, and large data flow, and achieve lightening Communication burden, driving safety improvement type, high safety effect

Inactive Publication Date: 2017-01-18
NANJING CRRC PUZHEN HAITAI BRAKE EQUIP CO LTD
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Problems solved by technology

In this way, when braking, the data flow on the MVB bus is very large, which is likely to cause data congestion and loss. Once this happens, the braking system

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  • Vehicle brake method of railway vehicle bogie-controlled electronic brake control system

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Embodiment Construction

[0015] 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 drawings in the embodiments of the present invention.

[0016] Such as figure 1 shown. Rail vehicle frame control electronic brake control system, including: Ethernet network cable, MVB bus and brake hard line running through the whole train, each car has a first electronic brake control unit that controls the first bogie and controls the second steering The second electronic brake control unit of the rack, the first electronic brake control unit has a management unit and a local unit connected to each other, the second electronic brake control unit has a local unit, and the management unit of each vehicle is connected to the MVB bus and the control unit respectively. The management unit of each vehicle and the lo...

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Abstract

The invention relates to a vehicle brake method of a railway vehicle bogie-controlled electronic brake control system. The vehicle brake method comprises the following steps: receiving a brake force signal of a hard brake line by a digital input and output board and sending the brake force signal to a brake management board through in-board network; computing a brake force needed for the whole vehicle by the brake management board; sending a distributed electric brake force to a TCU (Traction Control Unit) through an MVB (Multifunctional Vehicle Bus) for electric braking; when the brake force needed for the whole vehicle is larger than the maximum available electric brake capacity of the whole vehicle, equally distributing a residual brake force to all local units by the brake management board for air braking; sending target air brake pressure to a brake antiskid board through brake internal network by the brake management board; driving an EP pneumatic valve on an air circuit board by controlling two release valves and two holding valve electromagnetic valves by the brake antiskid board, thus enabling a brake cylinder to achieve the target brake pressure.

Description

technical field [0001] The invention relates to a vehicle braking method of a rail vehicle frame control electronic braking control system. Background technique [0002] Existing rail vehicles, in terms of braking control, mostly use a multi-function vehicle bus (MVB bus) communication method for braking force control. In this way, when braking, the data flow on the MVB bus is very large, which is likely to cause data congestion and loss. Once this happens, the braking system will switch to offline braking, making it difficult to control the braking distance of the vehicle. It is difficult to achieve precise control of the vehicle. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the above-mentioned shortcomings of the prior art, and provide a vehicle braking method for a rail vehicle frame control electronic braking control system. [0004] In order to solve the above technical problems, the present invention ...

Claims

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Application Information

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IPC IPC(8): B61H11/06B61H11/00B60T13/74
CPCB61H11/06B60T13/74B61H11/00
Inventor 刘寅虎幸甚李正强鲁进军高正中
Owner NANJING CRRC PUZHEN HAITAI BRAKE EQUIP CO LTD
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