Title:
METHOD, APPARATUS AND SYSTEM FOR PROTECTING INTERIOR PRESSURE OF RAIL VEHICLE
Document Type and Number:
WIPO Patent Application WO/2020/001092
Kind Code:
A1
Abstract:
Provided are a method, device and system for protecting an interior pressure of a rail vehicle. The method comprises: acquiring the current position of a rail vehicle that is running; if it is learned, by means of determination, that the rail vehicle is located at a pre-set position before reaching a pressure fluctuation control interval, and the current running speed of the rail vehicle is greater than a pre-set speed threshold, turning off an electrical pressure wave protection valve, wherein the pressure fluctuation control interval is determined according to a pre-set pressure fluctuation interval; and if it is learned, by means of determination, that the rail vehicle runs away from the pressure fluctuation control interval, turning on the electrical pressure wave protection valve. According to a pre-set rule, an electrical pressure wave protection valve is pre-turned off before running into a pressure fluctuation control interval and the electrical pressure wave protection valve is turned on after running away from the pressure fluctuation control interval, and the electrical pressure wave protection valve only needs to be turned on and turned off at specific positions, thereby reducing a failure rate for the protection of an interior pressure of a rail vehicle, improving reliability and avoiding short supply of fresh air caused by continuously turning off the protection valve.
Inventors:
WANG SHENGGUANG (CN)
YOU JIN (CN)
LI JIAN (CN)
ZHANG CONGHUI (CN)
WANG YINGHAN (CN)
SUN ZHAOLAN (CN)
LI SHUDIAN (CN)
JIANG XIN (CN)
YOU JIN (CN)
LI JIAN (CN)
ZHANG CONGHUI (CN)
WANG YINGHAN (CN)
SUN ZHAOLAN (CN)
LI SHUDIAN (CN)
JIANG XIN (CN)
Application Number:
PCT/CN2019/079194
Publication Date:
January 02, 2020
Filing Date:
March 22, 2019
Export Citation:
Assignee:
CRRC QINGDAO SIFANG CO LTD (CN)
International Classes:
B61D27/00; B61C17/00
Foreign References:
| CN108839662A | 2018-11-20 | |||
| DE102014205742A1 | 2015-10-15 | |||
| CN103963795A | 2014-08-06 | |||
| CN101700774A | 2010-05-05 | |||
| US20100101656A1 | 2010-04-29 | |||
| US4462217A | 1984-07-31 |
Attorney, Agent or Firm:
CN-KNOWHOW INTELLECTUAL PROPERTY AGENT LIMITED (CN)
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