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Title:
METHOD AND DEVICE FOR CONTROLLING SWITCH-TYPE ELECTRO-PNEUMATIC VALVE OF ELECTRIC MULTIPLE UNIT
Document Type and Number:
WIPO Patent Application WO/2019/095780
Kind Code:
A1
Abstract:
A method and a device for controlling a switch-type electro-pneumatic valve of an electric multiple unit, the method comprising: calculating a difference value between the received real-time gas pressure obtained by performing collection in the volume chamber of the electro-pneumatic valve and a preset gas pressure to obtain a difference value; comparing the difference value with a preset error value to obtain a comparison result; controlling, according to the comparison result and the difference value, the first action of the electro-pneumatic valve; calculating an average change amount of the real-time gas pressure obtained by performing collection within a preset sampling period; and controlling, according to the difference value and the average change amount, the second action of the electro-pneumatic. The process of inflation or deflation is adjusted by introducing an average air pressure change value and a hysteresis coefficient so as to make the adjustment stable.

Inventors:
GAO, Shan (No. 3, Changqian Road Fengrun Distric, Tangshan Hebei 5, 063035, CN)
ZHANG, Xinyong (No. 3, Changqian Road Fengrun Distric, Tangshan Hebei 5, 063035, CN)
WEN, Congxi (No. 3, Changqian Road Fengrun Distric, Tangshan Hebei 5, 063035, CN)
QU, Qiufen (No. 3, Changqian Road Fengrun Distric, Tangshan Hebei 5, 063035, CN)
XIE, Chunjie (No. 3, Changqian Road Fengrun Distric, Tangshan Hebei 5, 063035, CN)
MENG, Qingdong (No. 3, Changqian Road Fengrun Distric, Tangshan Hebei 5, 063035, CN)
CHEN, Lei (No. 3, Changqian Road Fengrun Distric, Tangshan Hebei 5, 063035, CN)
SUN, Huizhi (No. 3, Changqian Road Fengrun Distric, Tangshan Hebei 5, 063035, CN)
XU, Hongmei (No. 3, Changqian Road Fengrun Distric, Tangshan Hebei 5, 063035, CN)
SHANG, Liming (No. 3, Changqian Road Fengrun Distric, Tangshan Hebei 5, 063035, CN)
Application Number:
CN2018/102641
Publication Date:
May 23, 2019
Filing Date:
August 28, 2018
Export Citation:
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Assignee:
CRRC TANGSHAN CO., LTD. (No. 3, Changqian Road Fengrun Distric, Tangshan Hebei 5, 063035, CN)
International Classes:
B60T13/68; B61H11/06
Foreign References:
CN206510905U2017-09-22
CN201882072U2011-06-29
CN105564403A2016-05-11
CN2310708Y1999-03-17
CN105452076A2016-03-30
Other References:
SHAO JIANSHUAI ET AL.: "Analysis of switch-tpe MU EP Valve Performance Parameter", RAILWAY LOCOMOTIVE AND MOTOR CAR, vol. 7, 31 July 2015 (2015-07-31)
LIU JIAN ET AL.: "Simulation research on hte On-off Valves Based on AMESIM", AMESIM, vol. 52, no. 4, 30 April 2014 (2014-04-30)
Attorney, Agent or Firm:
IPFUTURE INTELLECTUAL PROPERTY LAW OFFICE (9th Floor, Golder Plaza 10# Huayuan East Road, Haidian Dist, Beijing 1, 100191, CN)
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