Title:
RAILWAY COUPLER COUPLING DETECTION-BASED EMERGENCY BRAKING CONTROL CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2021/109056
Kind Code:
A1
Abstract:
A railway coupler coupling detection-based emergency braking control circuit, comprising: a railway coupler state detection circuit and a railway coupler state relay connected to a train power loop in series. Normally open contacts of the railway coupler state relay are connected to emergency braking train lines (L1, L2, L3, L4) in a cross-parallel connection manner. When the railway coupler coupling is normal, inductive proximity sensors located at a coupler knuckle and a center pivot are closed, the railway coupler state relay is driven, and closing of a corresponding node of an emergency braking loop is ensured by the normally open contacts of the railway coupler state relay in the cross-parallel connection manner. When the railway coupler coupling is abnormal/accidentally uncoupled, the inductive proximity sensors of railway couplers of two adjacent compartments (M1, M2) are switched off simultaneously, the railway coupler state relays of the two trains are powered off, and emergency braking is applied. In addition, when the railway coupler state relay breaks down, the normal use of an emergency circuit can be ensured by operating a corresponding bypass switch to bypass the fault. The linkage of accidental uncoupling of the railway couplers and the emergency braking can be achieved, thereby improving the reliability of the circuit.
Inventors:
DAI PENGCHENG (CN)
MAO XUN (CN)
XUE JUAN (CN)
HUANG HAIXIA (CN)
MAO XUN (CN)
XUE JUAN (CN)
HUANG HAIXIA (CN)
Application Number:
PCT/CN2019/123206
Publication Date:
June 10, 2021
Filing Date:
December 05, 2019
Export Citation:
Assignee:
CRRC NANJING PUZHEN CO LTD (CN)
International Classes:
B61H11/02; B61C17/00; B61H13/00
Foreign References:
| CN106394596A | 2017-02-15 | |||
| CN109109851A | 2019-01-01 | |||
| CN106184181A | 2016-12-07 | |||
| CN108674440A | 2018-10-19 | |||
| CN103318193A | 2013-09-25 | |||
| CN105620516A | 2016-06-01 | |||
| CN107867280A | 2018-04-03 | |||
| US20150083529A1 | 2015-03-26 | |||
| US20170247024A1 | 2017-08-31 |
Attorney, Agent or Firm:
NANJING TONGZE PATENT AGENCY FIRM(LIMITED LIABILITY PARTNERSHIP) (CN)
Download PDF: