Kabushiki Kaisha Toshiba

Toshiba Elevator Kabushiki Kaisha

Koichi Mishima

Yoshiaki Fujita

Hideya Kohara

An elevator speed governor for an elevator in which an elevator car () is attached to one end of a rope () having a counterweight () on the other end and driven by a motor () via the rope () comprises a motor current detector () that detects a motor current of the motor (), a target speed determining section () that determines a target speed in accordance with the motor current detected by the motor current detector (), and a motor control section () that controls the motor () so that the elevator car () moves at the target speed determined by the target speed determining section ().

Elevator speed control device, elevator speed controlling method and elevator speed controlling program

The hoist control device controls the hoist in such a manner that once the speed change of the cage frame has accelerated at a fixed acceleration, constant speed is maintained, after which it decelerates at a fixed deceleration and stops. Meanwhile, the cage chamber position control device controls the cage chamber drive device in such a manner that once the speed change of the cage chamber driven by the cage chamber drive device has accelerated at a fixed acceleration, constant speed is maintained, after which it decelerates at a fixed deceleration and stops.

Growing community of inventors

Yokohama, Japan

Koichi Mishima