| 摘要 |
PURPOSE: To reduce elevator running delay time at starting by making the degree of circulation greater at the start of actuation than at the start of generation of a speed command by use of a learned bleed pressure control constant, to shorten actuation delay time. CONSTITUTION: This hydraulic elevator controller 1 calculates a car position from a signal (v) from a speed detection circuit 110 and calculates the remaining distance to be traveled from a position detection circuit 130, and thereby a speed control circuit 141 controls the speed of an elevator. A learning control circuit 160 learns a bleed pressure control constant on the basis of the detected speed (v) and acceleration α according to oil temperature (t), hydraulic pressure P and the like which are transmitted from a running condition command circuit 180, and bleed pressure during upward travel is originated by an originating circuit 142. The speed control circuit 141 shortens travel delay time according to the bleed pressure. Actuation delay time which changes greatly depending on various running conditions is thus shortened and stabilized during upward travel to make it possible to enhance serviceability and responsiveness. |
