An apparatus for use by a controller configured to control operation of an electromagnetic brake system using at least one brake coil. The apparatus includes a means configured to obtain a resistance value of the at least one brake coil, a means configured to detect a current flowing through the at least one brake coil, a means configured to calculate a transient overload energy of the at least one brake coil, a means configured to determine whether the transient overload energy being calculated is equal to or greater than a predetermined threshold value, the transient overload energy representing an amount of energy dissipated exceeding a continuous limit amount of energy capable of being dissipated by the at least one brake coil under a condition of not exceeding a preset temperature, a means configured to determine whether the transient overload energy being calculated is equal to or greater than the predetermined threshold value; and means configured to trigger an overheat protection function to reduce the temperature of the at least one brake coil if it is determined that the transient overload energy being calculated is equal to or greater than the predetermined threshold.
一种用于由控制器使用的装置,该控制器被配置为控制使用至少一个制动器线圈的电磁制动系统的工作,该装置包括被配置为获得至少一个制动器线圈的电阻值的构件、被配置为检测流经至少一个制动器线圈的电流的构件、被配置为计算至少一个制动器线圈的瞬态过载能量的构件(该瞬态过载能量表示耗散的超过至少一个制动器线圈在不超过预设温度的条件下能够耗散的能量的连续限制额的能量额)、被配置为确定正在计算的瞬态过载能量是否等于或大于预定阈值的构件、以及被配置为在确定了正在计算的瞬态过载能量等于或大于预定阈值的情况下触发过热保护功能以降低至少一个制动器线圈的温度的构件。
Overheat protection mechanism for brake system
用于制动系统的过热保护机制
2021-08-17
Patent
Electronic Resource
Chinese
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