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Elevator braking control method and system

A technology of elevator braking and control methods, which is applied in the field of elevators to achieve the effect of improving safety and reliability and avoiding the phenomenon of sliding when the door is opened

Active Publication Date: 2019-06-04
HITACHI ELEVATOR CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The embodiment of the present invention provides an elevator braking control method and system, which can solve the problem of door-opening and sliding caused by brake failure when the elevator is overloaded, and improve the safety and reliability of elevator operation

Method used

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  • Elevator braking control method and system
  • Elevator braking control method and system
  • Elevator braking control method and system

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Embodiment Construction

[0036] In order to make the technical solution of the present invention clearer, the elevator braking control method and system of the present invention will be further described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention and not to limit the present invention. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0037] Such as figure 1 As shown, an embodiment of the present invention provides an elevator braking control method, which is used to solve the door-opening and sliding phenomenon caused by the brake failure when the elevator is overloaded, which specifically includes the following steps:

[0038] S100. Control the brake of the elevator brake according to the received leveling stop command, and the elevator brake provide...

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PUM

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Abstract

The invention provides an elevator brake control method. The elevator brake control method comprises the following steps: an elevator brake is controlled to brake according to a received flat floor stop instruction, and provides a first brake torque for braking a car to the car; when a car door of an elevator is opened, a frequency converter is controlled to provide direct current to a traction motor, so that the traction motor provides a second brake torque for braking the car to the car; and a stop brake torque is obtained according to the first brake torque and the second brake torque, and is greater than the first brake torque, so that the car is stopped in a flat floor position. The invention further provides an elevator brake control system. The elevator brake control method and system can prevent the door opening and slide phenomenon caused by elevator brake failure in car overloading, so that the elevator operation safety and reliability are improved.

Description

technical field [0001] The invention relates to the technical field of elevators, in particular to an elevator braking control method and system. Background technique [0002] Generally, elevators usually use eddy current sensors as overload protection devices. Since the output signal of the eddy current sensor is an analog signal and the signal line is long, the output signal of the eddy current sensor is easily interfered and becomes invalid. In addition, when the eddy current sensor fails, the elevator system cannot detect it. When the eddy current sensor cannot reflect the actual load due to interference or failure, the elevator will be overloaded without triggering an alarm. If the load continues to increase, it may cause brake failure and cause danger. Contents of the invention [0003] Embodiments of the present invention provide an elevator brake control method and system, which can solve the problem of door-opening and sliding caused by brake failure when the ele...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/14H02P27/04
CPCB66B5/145H02P27/04
Inventor 陈锦权张文俊杜永聪
Owner HITACHI ELEVATOR CHINA