ABS brake control circuit for elevator braking
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United States of America Patent
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Mar 13, 2018
Issued Date -
N/A
app pub date -
Jan 27, 2015
filing date -
Jul 27, 2012
priority date (Note) -
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status (Latency Note)
Importance
Abstract
An ABS brake control circuit for elevator breaking comprises a brake controller, a backup power supply, a manual rescue instruction circuit, a power grid power-off instruction circuit, a system failure instruction circuit, a signal identification circuit and a brake mode switching circuit. when transport equipments, such as an elevator, an escalator, and so on, encounters a system failure or power grid power-off or needs an emergency rescue, the ABS brake control circuit can allow the transport equipment to transition to a safe brake stop through a previous safe deceleration, thereby eliminating a significant security risk caused by a halt resulted from one-step brake which exists in an elevator brake system, and being capable of ensuring that the manual brake releasing will not cause the phenomena of a stalling of an elevator car and a brake failure of a brake, such that the brake safety of the transport equipments such as an elevator, an escalator, a moving walkway and the like is increased.
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