ABS brake control circuit of elevator brake system

Abstract

The invention relates to an ABS brake control circuit of an elevator brake system, which comprises a brake controller, a back-up source, an artificial rescue command circuit, a power grid power down command circuit, a system fault command circuit, a signal identification circuit, a brake mode switching circuit and the like. By adopting the ABS brake control circuit, when carrying equipment, such as an elevator and an escalator, has system fault, an electric grid is power-down or emergency rescue is required, the carrying equipment can be converted to safety stopping from antecedent safety speed reduction, the major hidden danger in the elevator brake system caused by once complete braking of the elevator brake system is canceled, the ABS brake control circuit can also ensure that the phenomena that an elevator car is out of speed and a brake is out of control can not occur when manual brake release is adopted, and the brake safety of the carrying equipment, such as an elevator, an escalator and an passenger conveyor, is improved.

Description

technical field [0001] The invention relates to a brake control circuit, in particular to an ABS brake control circuit of an elevator brake system. Background technique [0002] With the development of elevator technology, the use of elevator carrying equipment such as vertical elevators, escalators, and moving walks has become more and more popular, and the problem of how to achieve safe braking on various elevator carrying equipment has gradually emerged. [0003] For straight elevators, under normal circumstances, the brakes are zero-speed brakes after leveling, that is, static braking; and when the elevator needs emergency braking due to abnormal conditions, excessive or small braking force will give the elevator Personnel bring corresponding danger——Excessive braking force will cause the car to decelerate too much and cause injuries to the people in the car; if the braking force is too small, the purpose of safe braking will not be achieved, and even the elevator will s...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide an ABS braking control circuit of the elevator braking system, which can change the static braking and one-stop working mode of the elevator braking system through effective dynamic braking, and solve the problem of insufficient rescue measures for manual brake release. Safety and reliability issues, thereby improving the braking safety of elevators, escalators, moving walks and other transport equipment

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