Elevator control device

Abstract

The present invention relates to an elevator control device, thus when a load detected by a sensor is different with the real load, and a motor has no strength or energy to spare, through a driving control of an elevator or vibration is generated, the reduction of riding comfortable degree and elevator faults will be avoided. Preset torque instruction value of load driving when the elevator is assembled is recorded as an initial value, torque instruction value during the driving process of the elevator is also recorded, and the initial value is compared with the torque instruction value of the driving process. When the load is within a certain area comprising the balance load, when the torque instruction value of the driving process is above the initial value, the driving is judged as abnormal, and the loading scope changing the driving speed of the elevator can be changed. Moreover, within the nearby restricted certain scope comprising loading rate of 50%, the driving is judged as abnormal, the changing of the driving speed of the elevator is prohibited within the whole scope of the load.

Description

technical field [0001] The present invention relates to a technology for detecting abnormality of running in an elevator and a technology for operation control after abnormality detection, which has a function of feedback controlling the running speed and controlling the running speed according to the load in the car and the unbalanced load between counterweights. Background technique [0002] In the existing elevator control device, the load of the car is detected, and according to the detected load, the remaining force of the motor is used within the driving range of the motor and the machines that drive it to change the running speed, acceleration, and deceleration of the elevator. Service improved. In addition, when the elevator moves between floors, it is a speed control form of acceleration, fixed travel speed, and deceleration. [0003] As a prior art, for example, in the elevator control device described in Patent Document 1, it is disclosed that the speed control i...

AI Technical Summary

Problems solved by technology

In this way, when the load detected by the sensor is different from the actual load, the mass difference between the counterweight and the load is large, and it is possible that the motor will still increase the driving speed even though there is no spare power.

When the driving speed is increased with no spare power in the motor, there are problems such as a reduction in ride comfort caused by vibrations, etc., or the risk of emergency stops during driving.

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