Brake control system and method for an escalator
A brake control and escalator technology, applied in escalators, brake actuators, gear transmission mechanisms, etc., can solve potential safety hazards, inability to overcome problems such as inaccurate braking torque control, and achieve the effect of overcoming physical delays
Active Publication Date: 2022-05-13
SHANGHAI MITSUBISHI ELEVATOR CO LTD
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Problems solved by technology
Therefore, when the escalator is lightly loaded, it is easy to cause safety hazards
In order to achieve smooth braking, it is necessary to add an additional controller or auxiliary controller with self-adjusting braking distance, use the feedback mechanism to form a closed-loop control system, and provide different braking distances according to the difference between the actual braking distance and the preset braking distance. The current is given to the drive controller, but this method is not accurate enough to control the braking torque due to the inability to overcome the physical delay in the mechanical structure
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[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0042] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0043] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.
[0044] The present invention includes a braking control system for an escalator, such as figure 1 shown, includ...
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The invention discloses a braking control system for an escalator, comprising: a control chip receiving a braking start signal input by an escalator control module and generating a braking control signal; a driving module for receiving the braking control signal output by the control chip, and The input voltage of the drive module is controlled by the dynamic control signal; the brake coil receives the working current corresponding to the input voltage provided by the drive module; the output terminal of the safety module is connected to the first input terminal of the control chip to collect a step speed signal and feed back to the control chip , the control chip adjusts the braking current of the brake coil in the next braking process according to the step speed signal. Beneficial effects: the regression algorithm is continuously optimized to obtain a more accurate braking current, and the machine learning mechanism is combined with the feedback adjustment mechanism to overcome the control inaccuracy caused by the physical delay in the mechanical structure, so that the device with delay An ideal braking control effect can also be achieved.
Description
technical field [0001] The invention relates to the technical field of a braking torque control system of an escalator, in particular to a braking control system and method of an escalator. Background technique [0002] With the development of society and the continuous expansion of urbanization, high-rise buildings in various places have sprung up before people's eyes. Escalators are an indispensable means of transportation in high-rise buildings. However, the frequent occurrence of escalator accidents not only makes people panic, but a large number of factual cases verify that the main cause of escalator accidents is the improper control of the braking torque of the escalator braking device. The braking device is responsible for the normal operation of the escalator, so it is particularly important to precisely control the braking torque of the braking device. [0003] In the prior art, when an abnormal situation occurs, the braking device will instantaneously output a c...
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IPC IPC(8): B66B25/00B66B29/00F16D65/14F16D121/20
Inventor 罗延泰
Owner SHANGHAI MITSUBISHI ELEVATOR CO LTD