The invention discloses an elevator car sliding speed calculation method based on acceleration prediction and a brake release device. According to the elevator car sliding speed calculation method based on acceleration prediction, the elevator car does uniform acceleration linear motion in the sliding process. At the beginning and the end of a detection period, the running speed of the elevator car is calculated based on the jumping times of pulse signals output by the incremental encoder, so that the acceleration in the detection period is calculated, and the running speed of the elevator car at any moment in the next detection period is calculated by utilizing the acceleration. On the premise that the resolution of the incremental encoder is not changed, the calculation frequency of the car sliding speed of the elevator car is improved, and elevator safety accidents caused by too low resolution of the incremental encoder are avoided. The brake releasing device calculates the car sliding speed of the elevator car by using the method in the period of outputting the brake releasing signal, and when the speed exceeds 0.3 m/s, the brake releasing device outputs brake contracting voltage to brake the elevator car.
本发明公开了基于加速度预测的电梯轿厢溜车速度计算方法与松闸装置。所述基于加速度预测的电梯轿厢溜车速度计算方法,视电梯轿厢在溜车过程中作匀加速直线运动。在一个检测周期的开始与结尾,基于增量式编码器输出脉冲信号的跳变次数计算电梯轿厢的运行速度,从而算出该检测周期内的加速度,并利用加速度推算电梯轿厢在下一检测周期内任一时刻的运行速度,在不改变增量式编码器分辨率的前提下,提高电梯轿厢溜车速度的计算频率,避免增量式编码器分辨率过低引起的电梯安全事故。所述松闸装置在输出松闸信号期间利用上述方法计算电梯轿厢溜车速度,当速度超过0.3m/s时,输出抱闸电压,刹停电梯轿厢。
Acceleration prediction-based elevator car sliding speed calculation method and brake release device
基于加速度预测的电梯轿厢溜车速度计算方法与松闸装置
2025-05-02
Patent
Electronic Resource
Chinese
IPC: | B66B Aufzüge , ELEVATORS |