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A method and system for obtaining dynamic-static braking transmission efficiency of railway freight cars

A transmission efficiency, railway freight car technology, applied in the direction of braking safety system, brakes, brake components, etc., can solve the problem of lack of effective guidance for train manipulation, failure to determine accidental braking of the train braking system, self-slowing and other faults, time-consuming and labor-intensive And other issues

Active Publication Date: 2022-07-05
MEISHAN CRRC BRAKE SCI & TECH CO LTD +1
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Problems solved by technology

This measurement method is not only time-consuming and laborious, but also can only detect the brake shoe pressure under static conditions, and cannot detect the braking capacity of the train under dynamic conditions, and lacks effective guidance for train manipulation
[0004] In the existing technology, it is impossible to determine whether the train braking system has accidental braking, self-slowing and other failures, so it is impossible to monitor the health status of the braking system

Method used

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  • A method and system for obtaining dynamic-static braking transmission efficiency of railway freight cars
  • A method and system for obtaining dynamic-static braking transmission efficiency of railway freight cars
  • A method and system for obtaining dynamic-static braking transmission efficiency of railway freight cars

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Embodiment Construction

[0044] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.

[0045] like figure 1 As shown, the method for obtaining the dynamic-static braking transmission efficiency of a railway freight car in this embodiment includes the following steps:

[0046] S1: Data Collection:

[0047] Bind the vehicle number to the 8 brake shoes installed on it, and number the position of each brake shoe on the vehicle (to facilitate locating the brake shoes with abnormal pressure), and establish a one-to-one correspondence with the wireless transmission module.

[0...

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Abstract

The invention belongs to the technical field of heavy-duty trains, and in particular relates to a method and system for obtaining dynamic-static braking transmission efficiency of railway freight cars. The method of the present invention comprises the following steps: collecting the data of the vehicle brake cylinder pressure and several pressure sensors on each brake shoe, and calculating the pressure of each brake shoe and the vehicle brake shoe pressure; calculating the vehicle-level dynamic and static brake transmission efficiency: Vehicle brake transmission efficiency η = vehicle brake shoe pressure / (vehicle brake cylinder pressure * brake cylinder piston area * brake magnification γ); calculation of train-level dynamic and static brake transmission efficiency: train brake transmission efficiency η = Σ Vehicle braking transmission efficiency η / total number of vehicles; output static and dynamic transmission efficiency curves; output static and dynamic average transmission efficiency curves and upper and lower limit curves of transmission efficiency. The present invention provides a method and system for obtaining the dynamic-static braking transmission efficiency of a railway freight car, so as to facilitate monitoring of the health state of the braking system.

Description

technical field [0001] The invention belongs to the technical field of heavy-duty trains, and in particular relates to a method and system for obtaining dynamic-static braking transmission efficiency of railway freight cars. Background technique [0002] With the continuous development of heavy-duty railway transportation, more and more heavy-duty trains are running, and their characteristics of large load capacity, high running speed and high operating density put forward higher requirements for the performance of vehicle braking system and train manipulation. [0003] The brake shoe pressure is the most direct manifestation of the braking ability of the vehicle. By detecting the actual brake shoe pressure of each vehicle, the braking force of the vehicle can be known, and then the braking ability of the train can be grasped. At present, most of the detection of brake shoe pressure is carried out under static conditions, and the pressure sensor is used instead of the brake ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T17/22
CPCB60T17/228Y02T90/00
Inventor 韩金刚任昭红安鸿申燕飞邱华杨建平李谋逵韦雪丽刘毅周策余沁雪刘宇李民
Owner MEISHAN CRRC BRAKE SCI & TECH CO LTD
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