Double-closed-loop control method and device of braking system, and terminal equipment
A double closed-loop control, braking system technology, applied in the direction of braking transmission, brake, transportation and packaging, can solve the problem of poor braking control accuracy, and achieve the effect of improving accuracy
Active Publication Date: 2021-11-09
CRRC TANGSHAN CO LTD
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Problems solved by technology
[0004] In view of this, the embodiment of the present invention provides a double closed-loop control method, device and terminal equipment of the braking system to solve the problem of poor braking control accuracy caused by errors in the command conversion process in the prior art
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Embodiment 1
[0029] figure 1 It shows a schematic flowchart of a double closed-loop control method for a braking system provided by an embodiment of the present invention. The execution subject of this embodiment is a terminal device, and the specific process is described in detail as follows:
[0030] S101: Obtain the actual deceleration value of the locomotive collected in the current cycle and the initial deceleration given value in the current cycle.
[0031] In this embodiment, the actual speed value of the locomotive is obtained through the speed sensor, and the terminal device obtains the actual speed value of the speed sensor according to a preset cycle, and differentiates the actual speed value to obtain the actual value of the deceleration. The initial deceleration given value is the value carried in the deceleration command given by the braking system.
[0032] Specifically, the actual value of the deceleration collected in the current period is the value collected before the d...
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The invention is suitable for the technical field of brake control, and provides a double-closed-loop control method and device of a braking system, and terminal equipment. The method comprises the steps of obtaining an actual deceleration value collected by a locomotive in the current period and an initial deceleration given value of the current period; obtaining a given deceleration adjustment value of the current period according to the actual deceleration value collected in the current period and the initial deceleration given value of the current period; the given deceleration adjustment value of the current period is converted into an initial pressure given value of a locomotive brake cylinder; acquiring a braking cylinder pressure actual value acquired in the current period; and controlling an air charging and discharging electromagnetic valve of the locomotive brake cylinder according to a difference value between the actual pressure value of the brake cylinder acquired in the current period and the initial pressure set value of the current period. Through internal and external double-closed-loop control of deceleration and locomotive brake cylinder pressure, the brake control accuracy can be improved.
Description
technical field [0001] The invention belongs to the technical field of brake control, and in particular relates to a double-closed-loop control method, device and terminal equipment of a brake system. Background technique [0002] The braking system is the safety guarantee for high-speed train operation, and a good control strategy needs to be designed to ensure safe and stable parking. The braking command is transmitted to the braking control unit of each vehicle through the train network, and the brake command is met by controlling the braking force applied by the vehicle. [0003] In the conventional train braking control method, the train deceleration command is directly calculated to obtain the locomotive brake cylinder pressure command, and the locomotive brake cylinder pressure command realizes braking control through the closed-loop control of the locomotive brake cylinder pressure. However, when the deceleration command is converted into a locomotive brake cylinder...
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IPC IPC(8): B60T13/68
CPCB60T13/686
Inventor 高珊秦佳颖刘中华温从溪孟庆栋张新永许红梅陈玄圣王晓磊罗铁军
Owner CRRC TANGSHAN CO LTD