An emergency braking circuit, method and rail vehicle
A technology for emergency braking and rail vehicles, applied in the field of rail vehicles, can solve the problems of long waiting time, reduce the operating efficiency of rail vehicles, reduce the comfort of passengers, etc., and achieve the effect of alleviating emergency braking
Active Publication Date: 2022-07-08
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
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[0045] In order to make those skilled in the art better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only It is a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0046] For ease of understanding, some technical terms involved in this application are first introduced.
[0047] Emergency braking of rail vehicles is a type of braking applied to stop the train as quickly as possible in an emergency. Emergency braking is different from quick braking. The effect of emergency braking...
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The application discloses an emergency braking circuit, a method and a rail vehicle, comprising: an emergency braking relay, a speed relay and a switching relay; the coil of the emergency braking relay and the normally open contact of the speed relay are connected in series ; the first branch where the normally open contact of the switching relay is located, the normally open contact of the emergency braking relay and the second branch where the normally open contact of the speed relay is located are connected in parallel; wherein the said When the speed of the speed relay is lower than the preset speed threshold, the coil of the first speed relay is energized. Furthermore, without reducing the speed of the rail vehicle to the preset speed threshold, the emergency braking circuit can also be turned on by controlling the normally open contact of the switching relay to close, so that the coil of the emergency braking relay is energized, thereby reducing the speed of the rail vehicle. emergency braking.
Description
technical field [0001] The present application relates to the technical field of rail vehicles, and 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 is suitable for the braking of rail vehicles in the event of an emergency. [0003] For the safety of passengers, when the rail vehicle triggers the emergency braking during the operation of the rail vehicle, it is necessary to manually relieve the emergency braking after the speed of the rail vehicle is reduced to zero speed. [0004] However, in some scenarios, when the personal safety of the passengers can be ensured, according to the above method of alleviating the emergency braking, it is necessary to wait for a long time. This approach not only reduces the operational efficiency of the rail vehicle, but also reduces the comfort of the pas...
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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