Emergency braking circuit and method, and rail vehicle
An emergency braking and circuit technology, applied in the field of rail vehicles, can solve the problems of reducing passenger comfort, waiting for a long time, and reducing the operational efficiency of rail vehicles.
Active Publication Date: 2021-01-29
CRRC QINGDAO SIFANG CO LTD
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Problems solved by technology
[0004] However, in some scenarios, when the personal safety of passengers can be guaranteed, it is necessary to wait for a long time according to the above-mentioned method of relieving emergency braking.
This method not only reduces the operating efficiency of rail vehicles, but also reduces the comfort of passengers
Method used
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[0045] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
[0046] For ease of understanding, some technical terms involved in this application are firstly introduced.
[0047] The emergency braking of rail vehicles is a kind of braking applied to stop the train as quickly as possible in an emergency. Emergency braking differs from rapid braking in that it acts more rapidly and uses the full braking capacity of the rail ve...
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The invention discloses an emergency braking circuit and method, and a rail vehicle. The emergency braking circuit comprises an emergency braking relay, a speed relay and a switching relay, wherein acoil of the emergency brake relay is connected with a normally open contact of the speed relay in series; a first branch where a normally open contact of the switching relay is located, a normally open contact of the emergency braking relay and a second branch where a normally open contact of the speed relay is located are connected in parallel. When the speed of the rail vehicle is smaller than apreset speed threshold value, a coil of the first speed relay is powered on. Furthermore, the emergency braking circuit can be conducted by controlling the normally open contact of the switching relay to be closed without reducing the speed of the railway vehicle to a preset speed threshold value, so the coil of the emergency braking relay is electrified, and emergency braking of the railway vehicle is relieved.
Description
technical field [0001] The present application relates to the technical field of rail vehicles, in particular to an emergency braking circuit, a method and a rail vehicle. Background technique [0002] The braking of rail vehicles is an important link to ensure the safety of railway transportation. Among them, emergency braking applies to the braking used by rail vehicles in the event of an emergency. [0003] In consideration of the personal safety of passengers, when the rail vehicle triggers emergency braking during the operation of the rail vehicle, it is necessary to manually release the emergency brake after the speed of the rail vehicle is reduced to zero. [0004] However, in some scenarios, when the personal safety of the passengers can be guaranteed, it is necessary to wait for a long time according to the above-mentioned mode of relieving the emergency braking. This approach not only reduces the operating efficiency of the rail vehicle, but also reduces the comf...
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Login to View More IPC IPC(8): B60L7/00B60T17/18
CPCB60L7/00B60T17/18
Inventor 王田农祖健陈波韩庆军于晓杰
Owner CRRC QINGDAO SIFANG CO LTD