The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 19, 2023
Filed:
Dec. 05, 2019
Crrc Nanjing Puzhen Co., Ltd., Nanjing, CN;
Chaofeng Ding, Nanjing, CN;
Fengli Zhang, Nanjing, CN;
Rujun Liang, Nanjing, CN;
Chunmeng Wang, Nanjing, CN;
Xiaofang Shi, Nanjing, CN;
Aiping Zhang, Nanjing, CN;
Lian Ge, Nanjing, CN;
Hemin Ding, Nanjing, CN;
CRRC Nanjing Puzhen Co., Ltd., Nanjing, CN;
Abstract
An emergency braking extension device includes an emergency braking extension loop, a first emergency braking extension train line and a second emergency braking extension train line. The emergency braking extension loop has a protective circuit breaker, a normally open contact of an emergency braking button, and an emergency braking extension relay, which are sequentially connected in series. A normally open contact of the emergency braking extension relay is connected in series to a pantograph lowering control loop. A first normally closed contact and a second normally closed contact of the emergency braking extension relay are connected in series to a return line and a power supply negative loop of a train emergency braking control loop, respectively. A third normally closed contact of the emergency braking extension relay is connected in series to a control loop of a bypass cut-off circuit of a train emergency braking execution loop.