JP2019018969A - Elevator control device and elevator control method - Google Patents

Abstract

To provide an elevator control device and an elevator control method capable of starting a car smoothly by imparting an adequate torque to a hoist machine when the car is stopped even in a condition in which a load amount of the car cannot be detected.SOLUTION: An operation control part 122A causes a hoist machine brake to be released for a predetermined time when a car call is registered when the car is stopped. A car travel distance calculation part 124 calculates a travel distance of the car while the hoist brake is released on the basis of a pulse signal output by a pulse generator of a hoist machine by that the hoist machine brake is released for the predetermined time. An estimated load amount calculation part 125A calculates an estimated value of a load amount imparted to the car on the basis of the travel distance of the car. A torque control part 127A corrects a torque value imparted to the hoist machine on the basis of the calculated estimated load amount.SELECTED DRAWING: Figure 2

Description

  Embodiments described herein relate generally to an elevator control device and an elevator control method.

  Usually, when the elevator car is stopped and the hoisting machine brake is released to start the operation, a torque having a value corresponding to the load applied to the car is applied to the hoisting machine. By applying an appropriate torque to the hoisting machine, it is possible to avoid the sudden start due to the suspension or jumping of the car when the brake is released, and to start the elevator smoothly.

JP 2011-131967 A

  However, when the load of the car cannot be detected, it is necessary to manually correct the torque applied to the hoist every time the car stops on one of the floors. there were.

  The present invention has been made in view of the above circumstances, and even when the load amount of the car cannot be detected, an appropriate torque is applied to the hoisting machine when the car is stopped, and the car is started smoothly. It is an object of the present invention to provide an elevator control device and an elevator control method that can be used.

  According to the embodiment for achieving the above object, the elevator control device includes an operation control unit, a car movement distance calculation unit, a predicted load amount calculation unit, and a torque control unit. When the car call is registered when the car is stopped, the operation control unit releases the hoist brake for a predetermined time. The car movement distance calculation unit calculates the movement distance of the car during release of the hoisting machine brake based on the pulse signal output from the pulse generator of the hoisting machine when the hoisting machine brake is released for a predetermined time. The predicted load amount calculation unit calculates a predicted value of the load amount applied to the car based on the travel distance of the car. The torque control unit corrects the torque value applied to the hoisting machine based on the calculated predicted load amount.

Explanatory drawing which shows the structure of the elevator using the elevator control apparatus by 1st, 2nd embodiment. The block diagram which shows the structure of the elevator control apparatus by 1st Embodiment. The flowchart which shows operation | movement of the elevator control apparatus by 1st Embodiment. The block diagram which shows the structure of the elevator control apparatus by 2nd Embodiment. The flowchart which shows operation | movement of the elevator control apparatus by 2nd Embodiment. Explanatory drawing which shows the structure of the elevator using the elevator control apparatus by 3rd Embodiment. The block diagram which shows the structure of the elevator control apparatus by 3rd Embodiment. The flowchart which shows operation | movement of the elevator control apparatus by 3rd Embodiment. Explanatory drawing which shows the structure of the elevator using the elevator control apparatus by 4th, 5th embodiment. The block diagram which shows the structure of the elevator control apparatus by 4th Embodiment. The flowchart which shows operation | movement of the elevator control apparatus by 4th Embodiment. The block diagram which shows the structure of the elevator control apparatus by 5th Embodiment. The flowchart which shows operation | movement of the elevator control apparatus by 5th Embodiment.

  Hereinafter, an embodiment for appropriately performing torque correction to the hoisting machine when the elevator control device is in a state where it is impossible to obtain the load amount applied to the elevator car by the load detection device or the like. ,explain.

<< First Embodiment >>
<Configuration of elevator according to the first embodiment>
The structure of the elevator using the elevator control apparatus by 1st Embodiment of this invention is demonstrated with reference to FIG. In the elevator 1A according to the present embodiment, a main rope 4 is stretched over a hoist 2 and a deflecting sheave 3 installed at the upper part of a hoistway, and a car 5 and a counterweight 6 are suspended in a hanging manner at both ends thereof. It has been. A compen- sion rope 7 connected to the bottom of the car 5 and the bottom of the counterweight 6 is passed over a compensatory 8 installed in a pit below the hoistway, and the main rope 4 and the compen- sion rope 7 are tensioned. Given. The hoisting machine 2 is connected to an elevator control device 10A installed at the upper part of the hoistway, and is driven by a command from the elevator control device 10A to raise and lower the car 5. The hoisting machine 2 is provided with a hoisting machine brake 21 for suppressing braking of the hoisting machine 2 and a pulse generator 22 that outputs a pulse signal c1 based on the rotational speed of the drive shaft of the hoisting machine 2. The pulse signal c1 output from the pulse generator 22 is used to detect the position information of the car 5. In the car 5, an in-car operation panel 51 is installed for the user to specify the destination floor. The car 5 is connected to the elevator control device 10A by a tail cord 9, and when a button operation for designating a destination floor is performed by the user on the in-car operation panel 51, the corresponding button operation signal a1 is transmitted to the tail cord 9. Is output to the elevator control apparatus 10A.

  The configuration of the elevator control device 10A will be described with reference to the block diagram of FIG. The elevator control apparatus 10A includes a signal input unit 11A, an arithmetic processing unit 12A, and a signal output unit 13A. The signal input unit 11A receives the button operation signal a1 output from the in-car operation panel 51 and the pulse signal c1 output from the pulse generator 22, and sends them to the arithmetic processing unit 12A.

  The arithmetic processing unit 12A includes a call registration unit 121, an operation control unit 122A, a pulse signal acquisition unit 123, a car movement distance calculation unit 124, a predicted load amount calculation unit 125A, a torque correction value calculation unit 126, a torque And a control unit 127A.

  The call registration unit 121 acquires the button operation signal a1 input from the signal input unit 11A, and registers a car call using the corresponding floor as the destination floor based on the button operation signal a1. When the car call is registered while the car 5 is stopped, the operation control unit 122A outputs the brake release signal b1 from the signal output unit 13A to the hoisting machine brake 21, and outputs the brake close signal b2 after a predetermined time. The hoist brake 21 is released for a predetermined time. The pulse signal acquisition unit 123 acquires the pulse signal c1 input from the signal input unit 11A. The car movement distance calculation unit 124 calculates the movement distance of the car 5 when the hoisting machine brake 21 is released based on the pulse signal c1 acquired by the pulse signal acquisition unit 123. The predicted load amount calculation unit 125A calculates a predicted value of the load amount applied to the car 5 as the predicted load amount based on the movement distance of the car 5 calculated by the car movement distance calculation unit 124. The torque correction value calculating unit 126 is a torque applied to the hoisting machine 2 that is necessary for smoothly starting the traveling of the car 5 based on the predicted load amount of the car 5 calculated by the predicted load amount calculating unit 125A. The correction value is calculated. The torque control unit 127A outputs, from the signal output unit 13A, a balanced torque control signal d1 that is a signal for correcting the torque value applied to the hoisting machine 2 based on the correction value calculated by the torque correction value calculation unit 126. Let The signal output unit 13A outputs a brake release signal b1 and a brake close signal b2 to the hoisting machine brake 21 and outputs a balancing torque control signal d1 to the hoisting machine 2 based on an instruction from the arithmetic processing unit 12A.

<Operation of the elevator according to the first embodiment>
Next, operation | movement of the elevator 1A by this embodiment is demonstrated with reference to the flowchart of FIG. The flowchart of FIG. 3 shows the process executed by the elevator control apparatus 10A.

  First, when the car 5 is stopped at any floor, that is, when the hoisting machine brake 21 is closed under the control of the operation control unit 122A, the car that has entered the car 5 is used by the user. When a button operation for designating a destination floor (for example, “3rd floor”) is performed on the inner operation panel 51, a corresponding “3rd floor” button operation signal a1 is output from the in-car operation panel 51. The output “third floor” button operation signal a1 is input to the signal input unit 11A of the elevator control apparatus 10A, and the data in the register <0> of the signal input unit 11A is changed from “0” to “1”. When the data in the register <0> of the signal input unit 11A is changed from “0” to “1”, the operation processing unit 12A uses the in-car operation panel 51 to designate “3rd floor” as the destination floor. a1 is acquired.

  In the arithmetic processing unit 12A, a car call with “3rd floor” as the destination floor is registered in the call registration unit 121 based on the acquired button operation signal a1 (“YES” in S1). When the car call is registered, the operation control unit 122A outputs a brake release signal b1 for releasing the hoisting machine brake 21. When the brake release signal b1 is output, the data in the corresponding register <0> of the signal output unit 13A is changed from “0” to “1”. When the data in the register <0> of the signal output unit 13A is changed from “0” to “1”, the brake release signal b1 is output to the hoisting machine brake 21 and the hoisting machine brake 21 is released (S2).

  After the brake release signal b1 is output by the operation control unit 122A, when a predetermined time t (for example, about 0.5 seconds) has elapsed ("YES" in S3), the released hoisting machine brake 21 is released from the operation control unit 122A. A brake close signal b2 for making the closed state is output. When the brake close signal b2 is output, the data in the corresponding register <1> of the signal output unit 13A is changed from “0” to “1”. When the data in the register <1> of the signal output unit 13A is changed from “0” to “1”, the brake close signal b2 is output to the hoisting machine brake 21 and the hoisting machine brake 21 is closed (S4). ). When the hoist brake 21 is closed, the car 5 stops.

  Here, while the hoisting machine brake 21 is released for a predetermined time, the passenger car 5 is loaded with the load of the user who has entered the vehicle, and therefore moves downward due to suspension. This moving distance varies depending on the load applied to the car 5. When the car 5 moves, the hoisting machine 2 rotates at a rotation speed corresponding to the moving distance. A pulse signal c1 is output from the pulse generator 22 based on the rotational speed of the drive shaft of the winder 2 interlocked with the rotation of the winder 2.

  The pulse signal c1 output from the pulse generator 22 is input to the signal input unit 11A of the elevator control apparatus 10A, and the data in the register <1> of the signal input unit 11A is changed from “0” to “1”. When the data in register <1> of signal input unit 11A is changed from “0” to “1”, acquisition of pulse signal c1 is started in arithmetic processing unit 12A.

  In the arithmetic processing unit 12A, the pulse signal acquisition unit 123 acquires the pulse signal c1 output while the hoisting machine brake 21 is released. Then, based on the acquired pulse signal c1, the car movement distance calculation unit 124 calculates the movement distance of the car 5 (S5). When the movement distance of the car 5 is calculated, the predicted load amount calculation unit 125A calculates a predicted load amount that is a predicted value of the load amount applied to the car 5 (S6). Here, based on the weight of the car 5 and the weight of the counterweight 6 of the elevator 1A, the predicted load amount calculation unit 125A includes the load amount applied to the car 5 and the car 5 by suspension at a predetermined time t. Information indicating a correspondence relationship with the movement distance is stored in advance. The predicted load amount calculation unit 125 </ b> A calculates the predicted load amount of the car 5 corresponding to the acquired travel distance of the car 5 based on the previously held information.

  Next, a torque correction value calculation unit 126 calculates a correction value of torque applied to the hoisting machine 2 necessary for smoothly starting the traveling of the car 5 based on the calculated predicted load amount of the car 5. Is done. When the torque correction value is calculated, a balance torque control signal d1 for correcting the torque value applied to the hoisting machine 2 based on the calculated correction value is output from the torque control unit 127A. When the balance torque control signal d1 is output from the torque control unit 127A, the data in the corresponding register <2> of the signal output unit 13A is changed from “0” to “1”. When the data in the register <2> of the signal output unit 13A is changed from “0” to “1”, the balance torque control signal d1 is output from the signal output unit 13A to the hoisting machine 2, and the torque applied to the hoisting machine 2 is increased. It is corrected (S7).

  When the torque applied to the hoisting machine 2 is corrected based on the predicted load amount of the car 5, the running for responding to the car call registered in step S1 is started smoothly (S8).

  According to the first embodiment described above, even when the elevator load detection information cannot be acquired by the elevator control device, the load amount applied to the car can be accurately predicted by causing temporary suspension. By correcting the torque value applied to the hoisting machine based on this, it is possible to smoothly start running without requiring manual torque correction processing.

<< Second Embodiment >>
<Configuration of Elevator according to Second Embodiment>
Since the configuration of the elevator 1B according to the second embodiment of the present invention is the same as the configuration of the elevator 1A described in the first embodiment, a detailed description of portions having the same function is omitted. The configuration of the elevator control device 10B according to this embodiment is shown in FIG. When a car call is registered in the call registration unit 121 while the car 5 is stopped, the torque control unit 127B of the arithmetic processing unit 12B of the elevator control device 10B has a constant value in the direction in which the hoist 2 pulls the car 5. A constant torque control signal d2 for applying torque is output from the signal output unit 13B.

  When the car call is registered while the car 5 is stopped and the constant torque control signal d2 is output from the torque control unit 127B, the operation control unit 122B releases a brake release signal b1 for releasing the hoisting machine brake 21 for a predetermined time. Is output from the signal output unit 13B. When it is determined that the movement distance of the car 5 calculated by the car movement distance calculation unit 124 is equal to or greater than a predetermined value after a predetermined time from the output of the brake release signal b1, the brake close signal b2 is transmitted to the signal output unit 13B. Output from. If torque correction control is performed by the torque control unit 127B as in the first embodiment by outputting the brake close signal b2, the running for responding to the registered call is started. Further, if it is determined that the moving distance of the car 5 is less than a predetermined value after a predetermined time from the output of the brake release signal, the car 5 is not stopped and travel for responding to the registered car call is performed. Start immediately.

  If the predicted load amount calculation unit 125B determines that the movement distance of the car 5 calculated by the car movement distance calculation unit 124 is equal to or greater than a predetermined value after a predetermined time from the output of the brake release signal, the calculated ride amount A predicted load amount is calculated based on the moving distance of the car 5.

<Operation of Elevator according to Second Embodiment>
Next, operation | movement of the elevator 1B by this embodiment is demonstrated with reference to the flowchart of FIG. First, when a car call is registered by operating a destination floor designation button on the in-car operation panel 51 in the car 5 when the car 5 is stopped at any floor ("YES" in S11). ), This is detected by the operation control unit 122B.

  When the operation control unit 122B detects that the car call is registered while the car 5 is stopped, the torque control unit 127B applies a constant value of torque in the direction in which the hoist 2 pulls the car 5 A constant torque control signal d2 is output. When the constant torque control signal d2 is output, the data in the corresponding register <3> of the signal output unit 13B is changed from “0” to “1”. When the data in the register <3> of the signal output unit 13B is changed from “0” to “1”, a constant torque control signal d2 is output from the signal output unit 13B to the hoisting machine 2, and a constant value of torque is generated. 2 (S12). Here, the constant torque applied to the hoisting machine 2 is set in advance, for example, based on the average load applied to the car 5 calculated from the average value of the number of passengers in the car 5.

  Next, a brake release signal b1 for releasing the hoisting machine brake 21 is output by the operation control unit 122B. When the brake release signal b1 is output, the data in the corresponding register <0> of the signal output unit 13B is changed from “0” to “1”. When the data in the register <0> of the signal output unit 13B is changed from “0” to “1”, the brake release signal b1 is output to the hoisting machine brake 21 and the hoisting machine brake 21 is released (S13).

  When the hoisting machine brake 21 is released, the car 5 moves downward, and accordingly, the pulse signal c1 output from the pulse generator 22 is acquired by the pulse signal acquisition unit 123 via the signal input unit 11B. The Then, the moving distance of the car 5 is calculated based on the pulse signal c1 acquired from the output of the brake release signal b1 until a predetermined time t elapses (“YES” in S14, S15).

  Here, if the calculated travel distance of the car 5 is equal to or greater than a predetermined value (“YES” in S16), a brake close signal b2 is output from the operation control unit 122B. The output brake closing signal b2 is acquired by the hoisting machine brake 21 via the signal output unit 13B, and the hoisting machine brake 21 is closed (S17). When the hoisting machine brake 21 is in the closed state, a predicted load amount that is a predicted value of the load amount applied to the car 5 is calculated in the predicted load amount calculation unit 125B based on the calculated movement distance of the car 5. (S18).

  Next, a torque correction value calculation unit 126 calculates a correction value of torque applied to the hoisting machine 2 necessary for smoothly starting the traveling of the car 5 based on the calculated predicted load amount of the car 5. Is done. When the torque correction value is calculated, a balance torque control signal d1 for correcting the torque value applied to the hoisting machine 2 based on the calculated correction value is output to the hoisting machine 2 via the signal output unit 13B. The torque applied to the winder 2 is corrected (S19).

  When the torque applied to the hoisting machine 2 is corrected based on the predicted load amount of the car 5, the running for responding to the car call registered in step S11 is started smoothly (S20). If it is determined in step S16 that the moving distance of the car 5 calculated by the car moving distance calculating unit 124 is less than a predetermined value (“NO” in S16), the vehicle can be smoothly started even if it is started. Since the car 5 is moved, the car 5 is not stopped, and a response to the registered car call is immediately started (S20).

  According to the second embodiment described above, even if the elevator control device cannot acquire the load detection information of the car, a certain amount of torque is applied to the hoisting machine while the car is stopped, and the vehicle travels smoothly. Since the torque value is corrected only when the torque is insufficient for starting, it is possible to efficiently control the start of traveling.

<< Third Embodiment >>
<Configuration of Elevator according to Third Embodiment>
The elevator 1C according to the third embodiment of the present invention is an elevator for carrying goods, and as shown in FIG. 6, the configuration of the elevator 1A described in the first embodiment is provided except that a receiver 52 is provided in the car 5. Therefore, detailed description of portions having the same function is omitted. The receiver 52 has a wireless communication function, and receives load detection information wirelessly transmitted from the cart load detecting device 31 that detects the load amount of the cart 30 when the cart 30 is loaded in the car 5. To the elevator control device 10C.

  FIG. 7 shows the configuration of the elevator control apparatus 10C according to this embodiment. The arithmetic processing unit 12C of the elevator control apparatus 10C includes a call registration unit 121, an operation control unit 122C, a load detection information acquisition unit 128, a torque correction value calculation unit 126, and a torque control unit 127C. The operation control unit 122C performs operation control for responding to a call registered in the call registration unit 121. The load detection information acquisition unit 128 transmits a load detection signal e1 indicating the amount of load applied to the carriage 30 transmitted from the carriage load detection device 31 of the carriage 30 in the car 5 via the receiver 52 to the signal input unit 11C. To get through. Based on the load detection signal e1 acquired by the load detection information acquisition unit 128, the torque correction value calculation unit 126 corrects the torque applied to the hoisting machine 2 that is necessary for smoothly starting the traveling of the car 5. Is calculated. Based on the correction value calculated by the torque correction value calculation unit 126, the torque control unit 127C outputs a balance torque control signal d1 that is a signal for correcting the torque value applied to the hoisting machine 2 from the signal output unit 13C. Let

<Operation of the elevator according to the third embodiment>
Next, operation | movement of the elevator 1C by this embodiment is demonstrated with reference to the flowchart of FIG. First, when the user gets into the car 5 together with the cart 30 on which the luggage is loaded, the load amount applied to the cart 30 is detected by the cart load detection device 31 installed on the cart 30. In the cart load detection device 31, a load detection signal e 1 indicating the load amount is generated and output, and is received by the receiver 52 in the car 5. The load detection signal e1 received by the receiver 52 is transmitted to the elevator control device 10C. Communication between the receiver 52 and the elevator control device 10 </ b> C is performed through wireless communication or the tail cord 9.

  In the elevator control apparatus 10C, the received load detection signal e1 is input to the signal input unit 11C, and the data in the register <2> of the signal input unit 11C is changed from “0” to “1”. When the data in the register <2> of the signal input unit 11C is changed from “0” to “1”, the load detection information acquisition unit 128 acquires the load detection signal e1 (S31).

  Next, when the destination floor designation button is operated on the in-car operation panel 51 in the car 5 by the user who has entered the car 5 with the car 5 stopped, the car call is registered (“YES” in S32). This is detected by the operation control unit 122C. When it is detected that the car call is registered by the operation control unit 122C, the torque correction value calculation unit 126 smoothly detects the car 5 based on the load detection signal e1 acquired by the load detection information acquisition unit 128. A correction value of the torque applied to the hoisting machine 2 necessary for starting the traveling is calculated. When the torque correction value is calculated, a balanced torque control signal d1 for correcting the torque value applied to the hoist 2 based on the calculated correction value is generated by the torque control unit 127C. The generated balance torque control signal d1 is output to the hoisting machine 2 via the signal output unit 13C, and the torque applied to the hoisting machine 2 is corrected (S33).

  When the torque applied to the hoisting machine 2 is corrected based on the load applied to the carriage, the running for responding to the car call registered in step S33 is started smoothly (S34).

  According to the third embodiment described above, even when the load control information of the elevator cannot be acquired by the elevator control device of the elevator for carrying goods, the hoisting machine is based on the load amount of the load loaded on the carriage. By correcting the applied torque value, it is possible to start running smoothly.

<< 4th Embodiment >>
<Configuration of Elevator according to Fourth Embodiment>
In the elevator 1D according to the fourth embodiment of the present invention, as shown in FIG. 9, an inspection device 60 used for inspection work is installed on the upper portion of the car 5, and is connected to the elevator control device 10D via the tail cord 9. Other than that, the configuration is the same as that of the elevator 1A described in the first embodiment, and thus detailed description of the parts having the same function is omitted. The inspection device 60 includes an operation mode changeover switch 61 for switching the elevator 1D between the normal operation mode and the inspection operation mode, and an inspection operation travel switch 62 for causing the car 5 to travel at a low speed in the inspection operation mode. .

  FIG. 10 shows the configuration of the elevator control device 10D according to this embodiment. The arithmetic processing unit 12D of the elevator control device 10D includes an operation control unit 122D, a pulse signal acquisition unit 123, a car movement distance calculation unit 124, a predicted load amount calculation unit 125D, a torque correction value calculation unit 126, and torque control. Part 127D. Operation control part 122D will change so that the inside of elevator 1D may operate in inspection operation mode, if operation which switches from normal operation mode to inspection operation mode by operation mode changeover switch 61 of inspection device 60 is performed. Further, when the operation control switch 122D is operated in the inspection operation mode and the inspection operation travel switch 62 is operated for the first time, the torque value applied to the hoisting machine 2 based on the predicted load amount applied to the car 5. The correction control is executed. When the inspection operation travel switch 62 is operated for the second time after executing the torque value correction control, the traveling of the car 5 is started at a lower speed than during normal operation.

<Operation of Elevator according to Fourth Embodiment>
Next, the operation of the elevator 1D according to the present embodiment will be described with reference to the flowchart of FIG. When an operator performs an operation for switching from the normal operation mode to the inspection operation mode with the operation mode changeover switch 61 of the inspection device 60, the operation device 60 outputs an operation mode switching signal f1 and transmits it to the elevator control device 10D. The Communication between the inspection device 60 and the elevator control device 10 </ b> D is performed via wireless communication or the tail cord 9.

  In the elevator control device 10D, the received operation mode switching signal f1 is input to the signal input unit 11D, and the data in the register <3> of the signal input unit 11D is changed from “0” to “1”. When the data in the register <3> of the signal input unit 11D is changed from “0” to “1”, the operation control unit 122D is switched to the inspection operation mode (“YES” in S41).

  After switching to the inspection operation mode, when an operator operates the first inspection operation travel switch 62 in the inspection device 60 (“YES” in S42), an inspection operation travel command signal f2 is received from the inspection device 60. The signal is input to the signal input unit 11D of the elevator controller 10D, and the data in the register <4> of the signal input unit 11D is changed from “0” to “1”. When the data in the register <4> of the signal input unit 11D is changed from “0” to “1”, the operation control unit 122D generates a brake release signal b1 for releasing the hoisting machine brake 21. The generated brake release signal b1 is output to the hoisting machine brake 21 via the signal output unit 13D, and the hoisting machine brake 21 is released (S43).

  Since the processing executed in steps S44 to S47 after the hoisting machine brake 21 is released is the same as the processing in steps S4 to S7 described in the first embodiment, detailed description thereof is omitted. When the predicted load amount of the car 5 is calculated in step S47, the correction of the torque applied to the hoisting machine 2 necessary for smoothly starting the traveling of the car 5 is based on the calculated predicted load amount. The value is calculated by the torque correction value calculation unit 126 (S48). Thereafter, when the operator operates the second inspection driving switch 62 (“YES” in S49), the torque controller 127D instructs the hoisting machine based on the calculated correction value according to the instruction from the operation controller 122D. 2 is executed (S50).

  When the torque applied to the hoisting machine 2 is corrected based on the predicted load amount of the car 5, the inspection driving travel is executed based on the operation in step S49 (S51). In the inspection operation traveling, the car 5 travels at a lower speed than the normal operation.

  Thereafter, the processes in steps S42 to S52 are repeated until the operator performs an operation for switching from the inspection operation mode to the normal operation mode with the operation mode changeover switch 61 ("NO" in S52). When the operation mode changeover switch 61 performs an operation for switching from the inspection operation mode to the normal operation mode (“YES” in S52), the inspection operation ends, and the process returns to step S41 to perform the normal operation.

  According to the above fourth embodiment, when the inside of the elevator is operating in the inspection operation mode, the load applied to the car with high accuracy even when the elevator control device cannot acquire the load detection information of the car. By predicting the amount and correcting the torque value applied to the hoisting machine based on this amount, it is possible to smoothly start the inspection driving without requiring manual torque correction processing.

<< 5th Embodiment >>
<Configuration of elevator according to the fifth embodiment>
Since the configuration of the elevator 1E according to the fifth embodiment of the present invention is the same as the configuration of the elevator 1D described in the fourth embodiment, a detailed description of the portions having the same functions is omitted. FIG. 12 shows the configuration of the elevator control device 10E according to this embodiment. The torque control unit 127E of the arithmetic processing unit 12E of the elevator control device 10E causes the hoist 2 to ride when the first operation for the inspection operation traveling is performed after the operation control unit 122E is switched to the inspection operation mode. A constant torque control signal d2 for applying a constant value of torque in the direction of pulling the car 5 is output from the signal output unit 13E.

  The operation control unit 122E is switched to the inspection operation mode, and when the constant operation control switch d is output from the torque control unit 127E after the inspection operation travel switch 62 is operated for the first time, the hoisting machine brake 21 is released. A brake release signal b1 is output from the signal output unit 13E. When it is determined that the moving distance of the car 5 calculated by the car moving distance calculation unit 124 is equal to or greater than a predetermined value after a predetermined time from the output of the brake release signal b1, the brake closing signal b2 is transmitted to the signal output unit 13E. Output from. When the second inspection operation travel switch 62 is operated after the brake close signal b2 is output, the inspection operation travel by the operator's operation is started. Further, when it is determined that the moving distance of the car 5 is less than a predetermined value after a predetermined time from the output of the brake release signal, the car 5 is not stopped and the inspection driving operation by the operator's operation is immediately started. .

  When the predicted load amount calculation unit 125E determines that the movement distance of the car 5 calculated by the car movement distance calculation unit 124 is greater than or equal to a predetermined value after a predetermined time from the output of the brake release signal, the calculated ride amount A predicted load amount is calculated based on the moving distance of the car 5.

<Operation of the elevator according to the fifth embodiment>
Next, operation | movement of the elevator 1E by this embodiment is demonstrated with reference to the flowchart of FIG. When an operator performs an operation for switching from the normal operation mode to the inspection operation mode with the operation mode changeover switch 61 of the inspection device 60, the operation mode switching signal f1 output from the inspection device 60 is input to the elevator control device 10E. The operation control unit 122E is switched to the inspection operation mode (“YES” in S61).

  After switching to the inspection operation mode, when the operator operates the first inspection operation travel switch 62 in the inspection device 60 (“YES” in S62), the hoist 2 pulls the car 5 in a direction. A constant torque control signal d2 for applying a constant value of torque is output from the torque control unit 127E. The constant torque control signal d2 output from the inspection operation travel switch 62 is acquired by the hoisting machine 2, and a constant value of torque is applied to the hoisting machine 2 (S63).

  Next, the brake release signal b1 is output from the operation control unit 122E to the hoisting machine brake 21, and the hoisting machine brake 21 is released (S64). When the hoisting brake 21 is released, the car 5 moves downward, and accordingly, the pulse signal c1 output from the pulse generator 22 is acquired by the pulse signal acquisition unit 123 via the signal input unit 11E. . Then, the moving distance of the car 5 is calculated based on the pulse signal c1 acquired from the output of the brake release signal b1 until a predetermined time t elapses (“YES” in S65, S66).

  Here, if the calculated movement distance of the car 5 is equal to or greater than a predetermined value (“YES” in S67), a brake close signal b2 is output from the operation control unit 122E. The output brake closing signal b2 is acquired by the hoisting machine brake 21 via the signal output unit 13E, and the hoisting machine brake 21 is closed (S68). When the hoisting machine brake 21 is closed, the predicted load amount calculation unit 125E calculates a predicted load amount that is a predicted value of the load amount applied to the car 5 based on the calculated movement distance of the car 5. (S69).

  Next, a torque correction value calculation unit 126 calculates a correction value of torque applied to the hoisting machine 2 necessary for smoothly starting the traveling of the car 5 based on the calculated predicted load amount of the car 5. (S70). Thereafter, when the operator operates the second inspection operation travel switch 62 (“YES” in S71), the torque control unit 127E instructs the hoisting machine based on the calculated correction value according to an instruction from the operation control unit 122E. 2 is executed (S72). When the torque applied to the hoisting machine 2 is corrected based on the predicted load amount of the car 5, the inspection driving travel is executed based on the operation in step S71 (S73).

  Thereafter, the processes in steps S62 to S73 are repeated until the operator performs an operation for switching from the inspection operation mode to the normal operation mode with the operation mode switch 61 ("NO" in S74). When the operation mode changeover switch 61 performs an operation for switching from the inspection operation mode to the normal operation mode (“YES” in S74), the inspection operation ends, and the process returns to step S61 to perform the normal operation.

  If it is determined in step S67 that the travel distance of the car 5 calculated by the car travel distance calculation unit 124 is less than a predetermined value (“NO” in S67), the travel can be started smoothly even if it is started. Since the car 5 is moved, the response to the registered car call is started immediately (S73).

  According to the fifth embodiment described above, when the inside of the elevator is operating in the inspection operation mode, even if the elevator control device cannot acquire the load detection information of the car, the inspection operation travel switch is operated. When it is broken, a certain amount of torque is applied to the hoisting machine, and the torque value is corrected only when the torque is insufficient in order to start running smoothly, so it is possible to efficiently control the start of running. .

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  1A, 1B, 1C, 1D, 1E ... Elevator, 2 ... Winding machine, 3 ... Warp sheave, 4 ... Main rope, 5 ... Riding car, 6 ... Counterweight, 7 ... Compen rope, 8 ... Compensation, 9 ... Tail Code, 10A, 10B, 10C, 10D, 10E ... Elevator control device, 11A, 11B, 11C, 11D, 11E ... Signal input unit, 12A, 12B, 12C, 12D, 12E ... Arithmetic processing unit, 13A, 13B, 13C, 13D, 13E: Signal output unit, 21: Winder brake, 22 ... Pulse generator, 30 ... Dolly, 31 ... Dolly load detection device, 51 ... In-car operation panel, 52 ... Receiver, 60 ... Inspection device, 61 ... Operation Mode changeover switch, 62 ... inspection operation travel switch, 121 ... call registration unit, 122A, 122B, 122C, 122D, 122E ... luck Control unit, 123 ... pulse signal acquisition unit, 124 ... car movement distance calculation unit, 125A, 125B, 125C, 125D, 125E ... predicted load amount calculation unit, 126 ... torque correction value calculation unit, 127A, 127B, 127C, 127D, 127E ... torque control unit, 128 ... load detection information acquisition unit

According to the embodiment for achieving the above object, the elevator control device includes an operation mode switching switch for switching the inside of the elevator between the normal operation mode and the inspection operation mode, and the elevator car at a low speed in the inspection operation mode. It is connected to an inspection device having an inspection operation traveling switch for traveling, and includes an operation control unit , a car movement distance calculation unit, a predicted load amount calculation unit, and a torque correction value calculation unit . The operation control unit releases the hoisting machine brake of the elevator hoisting machine for a predetermined time when the inspecting driving travel switch is operated for the first time after switching from the normal operation mode to the inspection operation mode by the operation mode changeover switch. By calculating the correction value of the torque applied to the hoisting machine, and when the inspection operation travel switch is operated for the second time, the torque value applied to the hoisting machine is corrected based on the calculated correction value and is slower than in normal operation. Run the car at The car movement distance calculation unit calculates the movement distance of the car during release of the hoisting machine brake based on the pulse signal output from the pulse generator of the hoisting machine when the hoisting machine brake is released for a predetermined time. The predicted load amount calculation unit calculates a predicted value of the load amount applied to the car based on the travel distance of the car. The torque control unit calculates a correction value for torque applied to the hoisting machine based on the calculated predicted load amount.

Claims (6)

An operation control unit for releasing a hoisting machine brake of the hoisting machine of the elevator for a predetermined time when a car call is registered when the elevator car is stopped;
Car movement distance calculation for calculating the movement distance of the car while the hoisting machine brake is released based on the pulse signal output from the pulse generator of the hoisting machine when the hoisting machine brake is released for a predetermined time. And
A predicted load amount calculating unit that calculates a predicted value of a load amount applied to the car as a predicted load amount based on the moving distance of the car calculated by the car moving distance calculating unit;
An elevator control device comprising: a torque control unit that corrects a torque value applied to the hoisting machine based on the predicted load amount of the car calculated by the predicted load amount calculation unit. When the car call is registered when the car is stopped, the operation control unit applies a constant value of torque to the hoisting machine, and then releases the hoisting machine brake for a predetermined time,
If it is determined that the travel distance of the car calculated by releasing the hoisting machine brake for a predetermined time is equal to or greater than a predetermined value, the torque value applied to the hoisting machine is corrected by the torque control unit and then registered. Start running to respond to the car call,
When it is determined that the traveling distance of the car calculated by releasing the hoisting machine brake for a predetermined time is less than a predetermined value, traveling for calling and responding to the registered car is immediately started. The elevator control device according to claim 1. In the elevator control device connected to the cart load detecting device for detecting the load applied to the cart using the elevator,
A car call is registered when the elevator car is stopped after obtaining load detection information indicating the load applied to the car from the bogie load detection device of the car loaded on the elevator car. Then, based on the acquired load detection information, the elevator control apparatus provided with the torque control part which correct | amends the torque value applied to the said elevator hoisting machine. Connected to an inspection device having an operation mode changeover switch for switching the inside of the elevator between a normal operation mode and an inspection operation mode, and an inspection operation travel switch for causing the elevator car to travel at a low speed in the inspection operation mode. In the elevator control device,
After the operation mode changeover switch is switched from the normal operation mode to the inspection operation mode, when the inspection operation travel switch is operated for the first time, the hoisting machine brake of the elevator hoisting machine is released for a predetermined time. After executing the correction control of the torque value applied to the hoisting machine and executing the correction control of the torque value applied to the hoisting machine, when the inspection operation travel switch is operated for the second time, the speed is lower than that during normal operation. An operation control unit for running the car;
Car movement distance calculation for calculating the movement distance of the car while the hoisting machine brake is released based on the pulse signal output from the pulse generator of the hoisting machine when the hoisting machine brake is released for a predetermined time. And
A predicted load amount calculating unit that calculates a predicted value of a load amount applied to the car as a predicted load amount based on the moving distance of the car calculated by the car moving distance calculating unit;
An elevator control device comprising: a torque control unit that corrects a torque value applied to the hoisting machine based on the predicted load amount of the car calculated by the predicted load amount calculation unit. After the normal operation mode is switched from the normal operation mode to the inspection operation mode by the operation mode switching switch, when the inspection operation travel switch is operated for the first time, a constant torque is applied to the hoisting machine, and then the hoisting machine brake is applied. Open for a predetermined time,
When it is determined that the travel distance of the car calculated by releasing the hoisting machine brake for a predetermined time is greater than or equal to a predetermined value, the torque control unit performs correction control of a torque value applied to the hoisting machine, After executing the correction control of the torque value applied to the hoisting machine, when the inspection operation travel switch is operated a second time, the travel of the car is started at a lower speed than during normal operation,
When the travel distance of the car calculated by releasing the hoist brake for a predetermined time is determined to be less than a predetermined value, the travel of the car is immediately started at a lower speed than during normal operation. The elevator control device according to claim 4. When a car call is registered when the elevator car is stopped, the hoist brake of the elevator hoist is released for a predetermined time,
When the hoisting machine brake is released for a predetermined time, based on the pulse signal output from the hoisting machine pulse generator, the travel distance of the car during the release of the hoisting machine brake is calculated,
Based on the calculated travel distance of the car, a predicted value of the load applied to the car is calculated as a predicted load,
An elevator control method, wherein a torque value applied to the hoisting machine is corrected based on the calculated predicted load amount of the car.

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