WO2016203650A1 - エレベータの制御装置およびガバナロープ伸縮量推定方法 - Google Patents
エレベータの制御装置およびガバナロープ伸縮量推定方法 Download PDFInfo
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- WO2016203650A1 WO2016203650A1 PCT/JP2015/067776 JP2015067776W WO2016203650A1 WO 2016203650 A1 WO2016203650 A1 WO 2016203650A1 JP 2015067776 W JP2015067776 W JP 2015067776W WO 2016203650 A1 WO2016203650 A1 WO 2016203650A1
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- expansion
- floor
- governor
- contraction amount
- governor rope
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3415—Control system configuration and the data transmission or communication within the control system
- B66B1/3423—Control system configuration, i.e. lay-out
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3492—Position or motion detectors or driving means for the detector
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/12—Checking, lubricating, or cleaning means for ropes, cables or guides
- B66B7/1207—Checking means
- B66B7/1215—Checking means specially adapted for ropes or cables
Definitions
- the present invention relates to an elevator control apparatus and a governor rope expansion / contraction amount estimation method for estimating an error of a governor encoder caused by expansion / contraction of a governor rope when the position of a car is detected using the governor encoder.
- Patent Document 1 discloses a conventional elevator.
- This conventional elevator includes two governor speed detectors, and grasps the position of the car based on the detection values of the two governor speed detectors. For this reason, in an elevator with a long up-and-down stroke, the position of the car can be accurately grasped even if the governor rope expands and contracts.
- Patent Document 1 requires two governor speed detectors. For this reason, in order to consider the expansion and contraction of the governor rope in a normal elevator, it is necessary to add a new governor speed detector.
- the present invention has been made to solve the above-described problems, and an elevator control device capable of estimating an error of a governor encoder caused by expansion / contraction of a governor rope without adding a new governor speed detector, and The object is to obtain a governor rope expansion / contraction amount estimation method.
- a control apparatus for an elevator is a current position calculator that calculates a current position of a car based on a counter value of a governor encoder that is output according to the rotation of a governor around which a governor rope connected to the car is wound.
- a current position calculator is provided such that the floor plate detector provided in the elevator car selects one of the floor plates provided according to the floor position of the building. Based on the counter value of the governor encoder, the amount of movement until the movement starts from the state where it is detected and stopped and the landing plate is not detected is calculated. By estimating the count error of the governor encoder caused by the extension / contraction of the governor rope by comparing with the length of the It is intended to estimate.
- the governor rope expansion / contraction amount estimation method calculates the current position of the car based on the counter value of the governor encoder output according to the rotation of the governor around which the governor rope connected to the car is wound.
- An elevator control apparatus having a position calculator which is a governor rope expansion / contraction amount estimation method executed by a current position calculator, wherein a landing plate detector provided in an elevator car is installed at each floor position of a building.
- Based on the counter value of the governor encoder calculate the amount of movement until it starts from a state where it stops and detects any of the landing plates provided accordingly.
- the governor rope by comparing the movement amount calculated in the movement amount calculation step, the movement amount calculated in the movement amount calculation step, and the actual length of the landing plate.
- the present invention there is provided a configuration capable of estimating the governor encoder error caused by the expansion and contraction of the governor rope in consideration of the length of the landing plate detected by the landing plate detector.
- FIG. 1 is a configuration diagram of an elevator to which an elevator control device according to Embodiment 1 of the present invention is applied.
- FIG. It is a block diagram of the present position calculator provided in the control apparatus of the elevator in Embodiment 1 of this invention.
- It is a block diagram of the governor rope expansion-contraction amount estimator provided in the control apparatus of the elevator in Embodiment 1 of this invention.
- It is a block diagram of the car position calculator provided in the elevator control apparatus in Embodiment 1 of the present invention.
- Embodiment 2 of this invention It is a block diagram of the present position calculator provided in the control apparatus of the elevator in Embodiment 2 of this invention.
- Embodiment 2 of this invention it is the flowchart which showed a series of adjustment processes performed by the calculator for adjustment with respect to the output of a governor rope expansion-contraction amount estimator.
- Embodiment 3 of this invention it is the flowchart which showed a series of adjustment processes performed with the calculator for adjustment with respect to the output of a governor rope expansion-contraction amount estimator.
- FIG. FIG. 1 is a configuration diagram of an elevator to which the elevator control device according to Embodiment 1 of the present invention is applied.
- a hoistway 1 penetrates each floor of a building (not shown).
- the motor 2 is provided in the upper part of the hoistway 1.
- the sheave 3 is provided in the upper part of the hoistway 1 and is attached to the rotating shaft of the motor 2.
- the main rope 4 is wound around the sheave 3.
- the car 5 is provided inside the hoistway 1 and is suspended from one end of the main rope 4.
- the counterweight 6 is provided inside the hoistway 1 and is suspended from the other end of the main rope 4.
- the governor 7 is provided in the upper part of the hoistway 1.
- the governor rope 8 is wound around the governor 7 and connected to the car 5.
- Each of the plurality of door zone plates 9 is provided as a first landing plate at a position corresponding to the door zone of each floor within the hoistway 1.
- Each of the plurality of relevel zone plates 10 is provided as a second landing plate at a position corresponding to the relevel zone of each floor within the hoistway 1.
- the vertical length of the relevel zone plate 10 is shorter than the vertical length of the door zone plate 9.
- the weight detector 11 is provided in the car 5 so that the weight value of the load inside the car 5 can be detected.
- the door zone plate detector 12 is provided in the car 5 as a first landing plate detector. The door zone plate detector 12 detects the door zone plate 9 when it is disposed at the same height as the door zone plate 9 and detects the door zone plate 9 when detecting the door zone plate 9. Is provided.
- the relevel zone plate detector 13 is provided in the car 5 as a second landing plate detector.
- the relevel zone plate detector 13 detects the relevel zone plate 10 when it is arranged at the same height as the relevel zone plate 10 and also detects the relevel zone plate 10. , Provided to transmit a relevel zone signal.
- the motor speed detector 14 is connected to the motor 2 and is provided so as to transmit a motor encoder counter signal in accordance with the rotation speed of the motor 2.
- the governor speed detector 15 is connected to the governor 7 and is provided so as to transmit a governor encoder counter signal according to the rotational speed of the governor 7.
- the control device 16 includes a drive circuit 17, a speed controller 18, and a main control unit 19.
- the main control unit 19 includes an operation command calculator 20, a current position calculator 21, and a speed command calculator 22.
- the operation command calculator 20 calculates the elevator operation command and transmits the calculated operation command.
- the current position calculator 21 receives the governor encoder counter signal from the governor speed detector 15.
- the current position calculator 21 receives a door zone signal from the door zone plate detector 12. Further, the current position calculator 21 receives a relevel zone signal from the relevel zone plate detector 13.
- the current position calculator 21 is based on the governor encoder counter signal, the door zone signal, the relevel zone signal, the startup floor information, the destination floor information, the acceleration / deceleration pattern, and the startup / stop signal. The current position of the car 5 is calculated.
- the speed command calculator 22 receives the motor encoder counter signal from the motor speed detector 14. Further, the speed command calculator 22 receives a door zone signal from the door zone plate detector 12. Further, the speed command calculator 22 receives a relevel zone signal from the relevel zone plate detector 13. Further, the speed command calculator 22 receives the operation command from the operation command calculator 20. Further, the speed command calculator 22 receives a signal related to the current position of the car 5 from the current position calculator 21.
- the speed command calculator 22 calculates a speed command value based on the governor encoder counter signal, the door zone signal, the relevel zone signal, the operation command, and the signal related to the current position of the car 5. Further, the speed command calculator 22 transmits the activation floor information, the destination floor information, the acceleration / deceleration pattern, and the activation / stop signal to the current position calculator 21. Further, the speed command calculator 22 transmits a speed command value to the speed controller 18.
- the speed controller 18 drives the drive circuit 17 based on the speed command value.
- the drive circuit 17 drives the motor 2 based on the speed command value.
- the sheave 3 rotates following the drive of the motor 2.
- the main rope 4 moves following the rotation of the sheave 3.
- the car 5 and the counterweight 6 move up and down at a desired speed following the movement of the main rope 4 along a guide rail (not shown).
- FIG. 2 is a configuration diagram of the current position calculator 21 provided in the elevator control apparatus according to Embodiment 1 of the present invention.
- the current position calculator 21 includes a governor rope expansion / contraction amount estimator 23, a governor rope expansion / contraction amount storage unit 24, and a car position calculation unit 25.
- the governor rope expansion / contraction amount estimator 23 estimates the expansion / contraction amount of the governor rope 8 corresponding to the floor where the car 5 is activated based on the governor encoder counter signal, the door zone signal, the relevel zone signal, and the start / stop signal.
- the amount of expansion / contraction of the governor rope 8 corresponds to the error of the governor encoder caused by the expansion / contraction of the governor rope 8, that is, the position error of the car 5.
- the governor rope expansion / contraction amount storage unit 24 in the first embodiment has a storage function and a processing function. It is also possible to configure the governor rope expansion / contraction amount storage unit 24 to have only a storage function and to read / write data from / to the governor rope expansion / contraction amount storage unit 24 from a peripheral device.
- the governor rope expansion / contraction amount storage unit 24 stores the estimated value of the expansion / contraction amount of the governor rope 8 estimated by the governor rope expansion / contraction amount estimator 23 as the expansion / contraction amount of the governor rope 8 of each floor in association with the activation floor information.
- the governor rope expansion / contraction amount storage unit 24 has a governor rope 8 estimated by complementation from information on a plurality of floors in which the amount of expansion / contraction of the governor rope 8 is estimated for floors for which the expansion / contraction amount of the governor rope 8 is not estimated.
- the information on the amount of expansion / contraction and the information on the floor are stored in association with each other.
- the governor rope expansion / contraction amount storage unit 24 updates and stores information on the expansion / contraction amount of the governor rope 8 associated with the floor every time the governor rope expansion / contraction amount estimator 23 estimates the expansion / contraction amount of the governor rope 8.
- the governor rope expansion / contraction amount storage 24 transmits information on the expansion / contraction amount of the governor rope 8 associated with the floor corresponding to the destination floor information of the car 5. Further, the governor rope expansion / contraction amount storage unit 24 transmits the estimated value of the expansion / contraction amount of the governor rope 8 by the governor rope expansion / contraction amount estimator 23 and the information on the floor in accordance with an external command.
- the car position calculator 25 uses the governor encoder counter signal, the door zone signal, the relevel zone signal, the acceleration / deceleration pattern, and the estimated extension / contraction amount of the governor rope 8 associated with the floor corresponding to the destination floor information of the car 5. Based on this, the current position of the car 5 is calculated.
- FIG. 3 is a configuration diagram of the governor rope expansion / contraction amount estimator 23 provided in the elevator control apparatus according to Embodiment 1 of the present invention.
- the governor rope expansion / contraction amount estimator 23 includes a door zone plate length storage unit 26, a relevel zone plate length storage unit 27, a first storage unit 28, a second storage unit 29, a third storage unit 30, and a selector. 31.
- the door zone plate length storage unit 26 stores information related to the length of the door zone plate 9 that is a fixed design value.
- the relevel zone plate length storage unit 27 stores information on the length of the relevel zone plate 10 that is a design fixed value.
- the first storage unit 28 stores information on the value corresponding to the governor encoder counter signal when the car 5 departs from the Nth floor (N is an integer) based on the start / stop signal.
- the second storage unit 29 stores information relating to the value corresponding to the Nth floor governor encoder counter signal when the car 5 leaves the Nth floor and exits the Nth floor relevel zone.
- the third storage unit 30 stores information related to the value corresponding to the Nth floor governor encoder pulse counter signal when the car 5 further travels and exits the Nth floor door zone based on the door zone signal.
- the selector 31 is obtained from information stored in each of the door zone plate length storage unit 26, the relevel zone plate length storage unit 27, the first storage unit 28, the second storage unit 29, and the third storage unit 30.
- the estimated value of the amount of expansion / contraction of the governor rope 8 is selected from the types of estimated values. Furthermore, the selector 31 transmits the selected estimated value as an estimated value of the amount of expansion / contraction of the governor rope 8 corresponding to the activation floor.
- each value is defined by the following symbols.
- Z1 1/2 the length of the relevel zone plate 10
- Z2 1/2 the length of the door zone plate 9
- C1 The governor encoder pulse counter signal stored in the first storage unit 28
- C2 Value corresponding to the governor encoder pulse counter signal stored in the second storage device 29
- C3 Value corresponding to the governor encoder pulse counter signal stored in the third storage device 30
- the selector 31 selects the estimated value A of the amount of expansion / contraction of the governor rope 8 represented by the following expression (1).
- Estimated value A (N) Z1 ⁇ (C2 ⁇ C1) (1)
- the selector 31 selects the estimated value B of the expansion / contraction amount of the governor rope 8 represented by the following expression (2).
- Estimated value B (N) Z2- (C3-C1) (2)
- the selector 31 selects the estimated value C of the amount of expansion / contraction of the governor rope 8 expressed by the following expression (3).
- the estimated value A (N), estimated value B (N), and estimated value C (N) are different from each other when the cage 5 is rising and falling, the rising / falling may occur. It is conceivable that the estimated values are calculated separately, and stored in the first storage device 28, the second storage device 29, and the third storage device 30 separately at the time of ascent / descent.
- FIG. 4 is a configuration diagram of the car position calculator 25 provided in the elevator control apparatus according to Embodiment 1 of the present invention.
- the car position calculator 25 shown in FIG. 4 includes an integrator 32 and a governor rope expansion / contraction amount corrector 33.
- the governor rope expansion / contraction amount corrector 33 includes a correction value calculator 34 and a switch 35.
- the integrator 32 calculates the position of the temporary car 5 by integrating the value corresponding to the governor encoder counter signal.
- the governor rope expansion / contraction amount corrector 33 uses the estimated value of the expansion / contraction amount of the governor rope 8 corresponding to the destination floor from the governor rope expansion / contraction amount storage unit 24, the door zone signal of the destination floor, the relevel zone signal of the destination floor, and the deceleration pattern signal. Thus, the expansion / contraction amount of the governor rope 8 is corrected.
- the correction value calculator 34 in the governor rope expansion / contraction correction unit 33 is an estimated value of the expansion / contraction amount of the governor rope 8 corresponding to the destination floor, deceleration timing based on the deceleration pattern signal, and timing based on the relevel zone signal of the destination floor. And the correction value of the amount of expansion / contraction of the governor rope 8 is calculated using the timing based on the door zone signal of the destination floor.
- the switch 35 is switched so as to stop transmitting the correction value of the amount of expansion / contraction of the governor rope 8 from the correction value calculator 34 when the deceleration pattern signal is not received.
- the switch 35 is switched so as to transmit the correction value of the extension / contraction amount of the governor rope 8 from the correction value calculator 34 when receiving the deceleration pattern signal.
- the current position of the car 5 is calculated by subtracting the correction value of the expansion / contraction amount of the governor rope 8 from the governor rope expansion / contraction correction unit 33 from the position value of the temporary car 5 transmitted from the integrator 32.
- FIG. 5 is an explanatory diagram showing the amount of expansion / contraction of the governor rope estimated by the elevator control apparatus according to Embodiment 1 of the present invention.
- the horizontal axis in FIG. 5 represents the ratio (%) of the distance from the lowest floor to the entire lifting process of the car 5.
- the vertical axis in FIG. 5 is the estimated value (mm) of the amount of expansion / contraction of the governor rope 8 stored in the governor rope expansion / contraction amount storage 24.
- the elevator control apparatus moves in consideration of the length of the landing plate detected by the relevel zone plate detector or the door zone plate detector when the movement is started.
- a configuration capable of estimating the error of the governor encoder caused by the expansion and contraction of the governor rope is provided. Therefore, it is possible to estimate the governor encoder error caused by the expansion and contraction of the governor rope without adding a new governor speed detector.
- the elevator control apparatus detects the landing plate from the state where the door zone plate detector does not detect the landing plate during deceleration for stopping the car on the destination floor.
- the car position can be corrected by using the already estimated error value of the governor encoder generated by the extension and contraction of the governor rope. For this reason, even when the car decelerates to land, the position of the car can be accurately grasped. As a result, the landing error of the car and the vibration at the time of landing of the car can be suppressed, and the riding comfort of the car can be improved.
- the elevator control apparatus has a configuration in which information related to the error of the governor encoder caused by the expansion and contraction of the governor rope and the information on the floor are stored in association with each other. For this reason, the position of the car can be accurately grasped according to the position of each floor.
- the elevator control device relates to the floors for which the error of the governor encoder caused by the extension / contraction of the governor rope is not estimated, and for the floors for which the errors of the governor encoder caused by the extension / contraction of the governor rope are estimated. Based on the information, there is provided a configuration in which the information on the error of the governor encoder caused by the expansion and contraction of the governor rope estimated by complementing is stored in association with the information on the floor. For this reason, the position of the car can be properly grasped even with respect to the floor on which the car first lands.
- the elevator control device provides information on the error of the governor encoder caused by the extension / contraction of the governor rope corresponding to the floor whenever the governor rope extension / reduction amount estimator estimates the error of the governor encoder caused by the extension / contraction of the governor rope. It has a configuration for updating and re-storing. For this reason, the secular change of the expansion / contraction characteristic of the governor rope can be dealt with.
- the elevator control device has a configuration in which the information on the error of the governor encoder caused by the expansion and contraction of the governor rope estimated by the governor rope expansion and contraction estimator can be transmitted to the outside in association with the floor information. I have. For this reason, the information of the error of the governor encoder caused by the expansion and contraction of the governor rope can be effectively used during maintenance work of the elevator and the like.
- FIG. The second embodiment corresponds to the case where the governor rope expansion / contraction amount estimator 23 in the current position calculator 21 causes a detection error due to the dynamic characteristics of the governor mechanism in the elevator control device of the first embodiment. A method will be described.
- FIG. 6 is a configuration diagram of an elevator to which the elevator control device according to Embodiment 2 of the present invention is applied.
- the configuration of FIG. 6 in the second embodiment is the same as the configuration of FIG. 1 in the first embodiment except for some added or changed elements. Therefore, detailed description of the same elements will be omitted, and a description will be given below with a focus on the newly added calculator 50 for adjustment.
- the adjustment computing unit 50 detects that the adjustment operation is performed by receiving an adjustment process start signal from the operation command computing unit 20. Further, the adjustment computing unit 50 acquires the landing error measurement information based on the actual position of the car on the destination floor after executing the adjustment operation by the input operation of the measurement result by the maintenance staff. Then, the adjustment calculator 50 performs a calculation for adjusting the output of the governor rope expansion / contraction amount estimator 23 based on the landing error measurement information, and transmits an amplification factor command signal to the current position calculator 21. To do.
- FIG. 7 is a configuration diagram of the current position calculator 21 provided in the elevator control apparatus according to Embodiment 2 of the present invention.
- the basic configuration of the current position calculator 21 is the same as that of the current position calculator 21 of the first embodiment shown in FIG. Therefore, detailed description of the same elements will be omitted, and will be described below with a focus on the newly added amplification factor corrector 40.
- the amplification factor corrector 40 is inserted between the governor rope expansion / contraction amount estimator 23 and the governor rope expansion / contraction amount storage unit 24.
- the amplification factor corrector 40 receives the transmission signal from the governor rope expansion / contraction amount estimator 23 and the transmission signal from the adjustment computing unit 50 and transmits the signal after amplification factor correction to the governor rope expansion / contraction amount storage unit 24. .
- the information output from the governor rope expansion / contraction amount estimator 23 includes startup floor information and governor rope expansion / contraction amount estimation value information.
- the amplification factor corrector 40 does not process the startup floor information out of these two pieces of information, and transmits only the transmission information from the adjustment computing unit 50 for the governor rope expansion / contraction amount estimated value information. Process based on
- the amplification factor corrector 40 multiplies the amplification factor corresponding to the amplification factor command signal acquired from the adjustment computing unit 50 with respect to the governor rope expansion / contraction amount estimated value information, and obtains the multiplication result as the governor rope expansion / contraction amount. It transmits to the memory
- FIG. 8 is a flowchart showing a series of adjustment processes executed by the adjustment computing unit 50 on the output of the governor rope expansion / contraction amount estimator 23 in the second embodiment of the present invention.
- the adjustment process in the second embodiment is performed according to the following procedure.
- step S801 when the adjustment computing unit 50 receives the adjustment processing start signal from the operation command computing unit 20, the adjustment computing unit 50 initially sets the amplification factor information, which is the amplification factor command signal, to 1 in performing the adjustment operation.
- step S802 the adjustment computing unit 50 acquires the landing error measurement information input by the maintenance staff based on the measurement result after the elevator adjustment operation is executed by the control device 16.
- the elevator adjustment operation described above is specifically as follows. First, the control device 16 moves the car 5 with the floor to be adjusted as the startup floor and the predetermined floor as the destination floor. Then, in this moving operation, the amplification factor corrector 40 acquires the starting floor governor rope expansion / contraction amount estimated by the governor rope expansion / contraction amount estimator 23, and transmits it to the governor rope expansion / contraction amount storage unit 24.
- control device 16 sets a floor to be adjusted as a target floor, performs a moving operation with correction using an estimated value, returns to the floor to be adjusted, and then causes maintenance personnel to measure landing error measurement information. . This is the end of the description of the adjustment operation.
- step S803 the adjustment computing unit 50 determines whether or not the acquired landing error measurement information is within the evaluation reference range. If the landing error measurement information is within the evaluation reference range, the process proceeds to step S804, where the adjustment computing unit 50 holds the current amplification factor information and ends the series of processes.
- step S805 the adjustment computing unit 50 determines whether the landing error measurement information has passed the evaluation reference range or the landing error measurement. It is determined whether the information does not reach the evaluation reference range.
- step S806 the adjustment computing unit 50 determines that the landing error measurement information has exceeded the evaluation reference range. If the adjustment computing unit 50 determines that the landing error measurement information has exceeded the evaluation reference range, the adjustment computing unit 50 proceeds to step S806, where the amplification factor is increased by a predetermined amount with respect to the current set value. And the process returns to step S802.
- step S807 the amplification factor is reduced by a predetermined decrease with respect to the current set value. Decrease by the amount and return to step S802.
- step S802 when returning to step S802 via step S806 or step S807, the control device 16 adjusts the elevator again using the updated new amplification factor. Then, the series of processes is continued until the landing error information acquired after the adjustment operation falls within the evaluation reference range.
- the governor rope expansion / contraction amount estimation value of the governor rope expansion / contraction amount estimator 23 for detecting the governor rope expansion / contraction amount is corrected, and an appropriate amplification factor in which the landing error falls within the evaluation reference range can be obtained. .
- an elevator control device that can reduce detection errors due to the dynamic characteristics of the governor mechanism.
- the correction value also needs to be changed in accordance with the change in the amount of expansion / contraction on each floor.
- a method of adding the landing error at each floor as a correction value to the estimated value of the amount of stretch of the governor rope is also conceivable.
- this method since the correction value on each floor changes, it is necessary to acquire a value in association with each floor, and adjustment takes time.
- the correction method according to the second embodiment of the present invention corrects the estimated value of the amount of stretch of the governor rope with an amplification factor using the landing error as a parameter. Therefore, the correction value change in each floor can be dealt with by a common amplification factor, and there is no need to adjust in each floor.
- the amplification factor for correcting the estimated governor rope expansion / contraction amount is calculated. As a result, it is possible to correct the detection error due to the dynamic characteristics and set the landing error to an appropriate value within the evaluation reference range.
- Embodiment 3 In the second embodiment, if the landing error measurement information goes too far with respect to the evaluation reference range when the amplification factor adjustment process is performed, a predetermined increase is added to measure the landing error. When the information does not reach the evaluation reference range, a predetermined reduction amount is subtracted.
- FIG. 9 is a configuration diagram of an elevator to which the elevator control device according to Embodiment 3 of the present invention is applied.
- FIG. 10 is a configuration diagram of the current position calculator 21 provided in the elevator control apparatus according to Embodiment 3 of the present invention.
- the configuration of FIG. 9 in the present third embodiment is the same as the configuration of FIG. 6 in the previous second embodiment except for some added or changed elements. Therefore, detailed description of the same elements will be omitted, and a description will be given below with a focus on newly added correction processing.
- adjustment calculator 50 in the present third embodiment further receives the estimated start-up governor rope expansion / contraction amount from current position calculator 21, and provides an amplification factor. And a function of transmitting an amplification factor command signal to the current position calculator 21.
- the landing error measurement information is the signal A and the startup floor governor rope expansion / contraction estimation value for the two pieces of information received by the adjustment calculator 50. Is signal B.
- FIG. 11 is a flowchart showing a series of adjustment processes executed by the adjustment computing unit 50 on the output of the governor rope expansion / contraction amount estimator 23 in the third embodiment of the present invention. Note that steps S801 to S804 in FIG. 11 are the same as the processing of FIG. 8 in the second embodiment.
- the adjustment process in the third embodiment is performed according to the following procedure.
- step S801 when the adjustment computing unit 50 receives the adjustment processing start signal from the operation command computing unit 20, the adjustment computing unit 50 initially sets the amplification factor information, which is the amplification factor command signal, to 1 in performing the adjustment operation.
- step S ⁇ b> 802 the adjustment computing unit 50 acquires the landing error measurement information input by the maintenance staff as the signal A after the elevator adjustment operation is executed by the control device 16.
- the elevator adjustment operation described above is specifically as follows. First, the control device 16 moves the car 5 with the floor to be adjusted as the startup floor and the predetermined floor as the destination floor. Then, in this moving operation, the amplification factor corrector 40 acquires the startup floor governor rope expansion / contraction amount estimated by the governor rope expansion / contraction amount estimator 23 as a signal B, and, together with the governor rope expansion / contraction amount storage unit 24, the adjustment calculation To the device 50.
- control device 16 performs a moving operation with correction using the estimated value with the floor to be adjusted as the target floor, returns to the floor to be adjusted, and then sends a signal that is the landing error measurement information to the maintenance staff. Let A be measured.
- step S803 the adjustment computing unit 50 determines whether or not the signal A that is the acquired landing error measurement information is within the evaluation reference range. If the landing error measurement information is within the evaluation reference range, the process proceeds to step S804, where the adjustment computing unit 50 holds the current amplification factor information and ends the series of processes.
- step S1101 the adjustment computing unit 50 acquires the estimated value of the starting floor governor rope expansion / contraction amount as the signal B. Further, in step S1102, the adjustment computing unit 50 determines the amplification factor of the signal B, which is the starting floor governor rope expansion / contraction amount estimated value, based on the two signals A and B.
- the amplification factor is defined as a function F having the signals A and B as parameters, and can be expressed as the following equation (4).
- Amplification factor F (signal A, signal B) (4)
- the function F for determining the amplification factor command signal can be set as follows, for example.
- the amplification factor corrector 40 multiplies the signal B, which is the startup floor governor expansion / contraction amount estimated value, by the amplification factor received as the amplification factor command signal, and obtains a multiplication result.
- the multiplication result is ideally a signal obtained by correcting the signal A which is the landing error measurement information ((signal A) + (signal B)). In this case, the landing error is calculated. Can be made zero.
- the amplification factor corresponding to the amplification factor command signal may be defined as a function of the following equation (5), for example.
- step S802 After setting the amplification factor using the above equation (5), the process returns to step S802, and the processing after the adjustment operation is performed again.
- the amplification factor adjustment process is continued until the landing error information is within the evaluation reference range, but in principle, the number of determination processes is reduced to two or less.
- the adjustment computing unit 50 assumes the XY plane with the amplification factor command value as the X axis and the landing error amount as the Y axis, and stores the first and second gain command values and landing error information. Keep it. Then, the adjustment calculator 50 plots the first and second results on the XY plane, calculates the X intercept of the straight line passing through these two points, and obtains the amplification factor. By calculating the amplification factor in this way, the landing error can be made substantially zero.
- the amplification factor for correcting the governor rope expansion / contraction amount estimated value can be quickly calculated. .
- Embodiment 4 FIG.
- the amplification factor correction processing effective for the device in which the dynamic characteristic of the governor rope expansion / contraction amount responds to the deceleration pattern signal without time delay has been described.
- the dynamic characteristics of the governor rope expansion / contraction amount may have a high-frequency cutoff characteristic with respect to the deceleration pattern signal.
- the dynamic characteristic of the governor rope expansion / contraction amount causes a time delay or a waveform change with respect to the deceleration pattern signal. This time delay and waveform fluctuation cause an estimation error of the governor rope expansion / contraction amount estimator, and as a result, there is a problem in that the landing position error of the car 5 occurs.
- FIG. 12 is a configuration diagram of an elevator to which the elevator control device according to Embodiment 4 of the present invention is applied.
- the configuration of FIG. 12 in the fourth embodiment is the same as the configuration of FIG. 1 in the first embodiment except for some added or changed elements. Therefore, detailed description of the same elements will be omitted, and a description will be given below centering on the newly added low-pass filter 60.
- the low-pass filter 60 corresponds to a characteristic correction unit that corrects the current position of the car based on the dynamic characteristics of the governor rope expansion / contraction amount.
- the low-pass filter 60 receives the time series information of the current car position from the current position calculator 21 and outputs a signal obtained by performing a filter operation for cutting off the high frequency band to the received time series information. 22 to send.
- FIG. 13 is an example of time-series information of the governor rope expansion / contraction amount during the landing operation period of the elevator control apparatus according to Embodiment 4 of the present invention.
- the dotted line is a deceleration pattern signal added for reference.
- the deceleration pattern signal is drawn with the acceleration of the car as the unit of the vertical axis, and the time axis coincides with the time series information of the governor rope expansion / contraction amount.
- the dynamic characteristic of the governor rope expansion / contraction amount in this example is a characteristic that changes smoothly as the start and end parts of the trapezoidal waveform are delayed in time with respect to the trapezoidal waveform that is the deceleration pattern signal.
- This characteristic is a characteristic in which the high frequency band is cut off from the deceleration pattern signal.
- Such a high-frequency cutoff characteristic can be simulated by a low-pass filter.
- LPF (s) represents a transfer function of the low-pass filter
- T is a time constant.
- the time series information of the current car position output from the current position calculator 21 is a signal synchronized with the deceleration pattern signal. Therefore, the time series information of the current car position does not simulate the dynamic characteristic of the governor rope expansion / contraction amount, that is, the high frequency cutoff characteristic.
- This information expresses the position of the car 5 more accurately than before. Therefore, if the time series information of the current car position is transmitted to the speed command calculator 22 after passing through the low-pass filter by the low-frequency communication filter 60, the landing position error of the car 5 and the arrival of the car 5 are Vibration at the floor can be suppressed. The ride comfort of the car 5 can be improved by such a suppressing effect.
- the low-pass filter for simulating the first-order delay is provided. As a result, it is possible to suppress the landing position error of the car and the vibration at the time of landing caused by the first-order delay.
- FIG. 14 is a configuration diagram of an elevator to which the elevator control device according to Embodiment 5 of the present invention is applied. By adopting such a configuration, it is possible to add an effect of suppressing the landing position error of the car and the vibration at the time of landing to the previous second embodiment.
- FIG. 15 is a configuration diagram of an elevator to which the elevator control device according to Embodiment 6 of the present invention is applied.
- the effect of suppressing the landing position error of the car and the vibration at the time of landing can be added to the previous Embodiment 3 as well.
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Abstract
Description
特許文献1に記載のものは、2つのガバナ速度検出器を必要とする。このため、通常のエレベータにおいて、ガバナロープの伸縮を考慮するためには、新たなガバナ速度検出器を追加する必要がある。
図1は、本発明の実施の形態1におけるエレベータの制御装置が適用されたエレベータの構成図である。図1において、昇降路1は、図示しない建築物の各階を貫く。モータ2は、昇降路1の上部に設けられる。シーブ3は、昇降路1の上部に設けられ、モータ2の回転軸に取り付けられている。メインロープ4は、シーブ3に巻き掛けられる。
Z1:リレベルゾーンプレート10の長さの1/2の長さ
Z2:ドアゾーンプレート9の長さの1/2の長さ
C1:第1保存器28に保存されたガバナエンコーダパルスカウンタ信号に対応した値
C2:第2保存器29に保存されたガバナエンコーダパルスカウンタ信号に対応した値
C3:第3保存器30に保存されたガバナエンコーダパルスカウンタ信号に対応した値
推定値A(N)=Z1-(C2-C1) (1)
推定値B(N)=Z2-(C3-C1) (2)
本実施の形態2では、先の実施の形態1のエレベータの制御装置において、現在位置算出器21内のガバナロープ伸縮量推定器23が、ガバナ機構の動特性により検出誤差が発生する場合に対応する方法について説明する。
先の実施の形態2では、増幅率の調整処理を行う際に、着床誤差測定情報が評価基準範囲に対し行過ぎた場合には、あらかじめ決められた増加量を加算し、着床誤差測定情報が評価基準範囲に到達していない場合には、あらかじめ決められた減少量の減算処理を行っていた。
増幅率=F(信号A,信号B) (4)
増幅率
=F(信号A,信号B)
=((信号A)+(信号B))/(信号B)(5)
先の実施の形態1では、ガバナロープ伸縮量の動特性が減速パターン信号に対し、時間遅れなく応答する装置に有効な増幅率の補正処理について説明した。これに対して、本実施の形態4では、ガバナロープ伸縮量の動特性が減速パターン信号に対して時間遅れを有する場合の、増幅率の補正処理について説明する。
LPF(s)=1/(Ts+1) (6)
先の実施の形態4で説明した低域通過フィルタ60を備えた構成は、先の実施の形態2の構成に適用することも可能であることはいうまでもない。図14は、本発明の実施の形態5におけるエレベータの制御装置が適用されたエレベータの構成図である。このような構成とすることで、先の実施の形態2に対しても、一次遅れに起因するかごの着床位置誤差および着床時の振動を抑制する効果を付加することができる。
先の実施の形態4で説明した低域通過フィルタ60を備えた構成は、先の実施の形態3の構成に適用することも可能であることはいうまでもない。図15は、本発明の実施の形態6におけるエレベータの制御装置が適用されたエレベータの構成図である。このような構成とすることで、先の実施の形態3に対しても、一次遅れに起因するかごの着床位置誤差および着床時の振動を抑制する効果を付加することができる。
Claims (14)
- かごに接続されたガバナロープが巻き掛けられたガバナの回転に応じて出力されるガバナエンコーダのカウンタ値に基づいて、前記かごの現在位置を算出する現在位置算出器を備えたエレベータの制御装置であって、
前記現在位置算出器は、エレベータのかごに設けられた着床プレート検出器が、建築物の各階床位置に応じて設けられた着床プレートのいずれかを検出して停止している状態から移動を開始し、前記着床プレートを検出しない状態になるまでの移動量を、前記ガバナエンコーダのカウンタ値に基づいて算出し、算出した前記移動量と前記着床プレートの実際の長さとの比較により、前記ガバナロープの伸縮により生じる前記ガバナエンコーダのカウント誤差を推定することで、移動を開始した階床でのガバナロープ伸縮量を推定する
エレベータの制御装置。 - 前記現在位置算出器は、
出発階から移動を開始する際に、前記出発階に対応する前記カウント誤差を推定する伸縮量推定器と、
前記伸縮量推定器に推定された前記カウント誤差の情報を、前記出発階に相当する階床の情報に対応付けて記憶する伸縮量記憶器と、
前記かごが前記カウント誤差を算出済みの前記出発階を目的階として移動する際の減速停止動作中に、前記着床プレート検出器が前記目的階の着床プレートを検出していない状態から検出する状態に変化したタイミングで、前記目的階に対応する値として前記伸縮量記憶器に記憶されているカウント誤差を抽出し、抽出した前記カウント誤差により前記ガバナエンコーダのカウンタ値を補正することで前記かごの現在位置を算出するかご位置算出器と
を有する請求項1に記載のエレベータの制御装置。 - 前記伸縮量推定器は、移動を開始する各出発階において前記カウント誤差を推定し、推定した前記カウント誤差の情報と、前記出発階に相当する階床の情報とを対応付けて、前記伸縮量記憶部に記憶させる
請求項2に記載のエレベータの制御装置。 - 前記伸縮量推定器は、カウント誤差が推定されていない階床があり、かつ、すでに複数の階床に対応するカウント誤差が推定されて前記伸縮量記憶部に記憶済みの場合には、前記複数の階床に対応するカウント誤差に基づく補間を行うことで、カウント誤差が推定されていない前記階床のカウント誤差を推定し、前記伸縮量記憶部に記憶させる
請求項2に記載のエレベータの制御装置。 - 前記伸縮量推定器は、出発階から移動を開始する毎に、前記カウント誤差を推定し、新たに推定された前記カウント誤差により前記伸縮量記憶部内のデータを更新する
請求項2から4のいずれか1項に記載のエレベータの制御装置。 - 前記伸縮量推定器は、外部からの要求指令に応じて、前記伸縮量記憶部内のデータを読み出して外部に送信する機能を有する
請求項2から5のいずれか1項に記載のエレベータの制御装置。 - 前記現在位置算出器から出力される前記かごの現在位置に対して、ガバナロープ伸縮量の動特性に基づいた修正を施す特性修正部
をさらに備える請求項2から6のいずれか1項に記載のエレベータの制御装置。 - 前記特性修正部は、前記現在位置算出器の出力の高周波数帯域を遮断する低域通過フィルタで構成される
請求項7に記載のエレベータの制御装置。 - 目的階に停止した際に実測された着床誤差測定情報を取得し、前記伸縮量推定器で推定された前記カウント誤差を前記着床誤差測定情報に基づいて調整する調整用演算器
をさらに備える請求項2から8のいずれか1項に記載のエレベータの制御装置。 - 前記調整用演算器は、前記着床誤差測定情報に基づいて増幅率を算出し、前記伸縮量推定器で推定された前記カウント誤差に対して前記増幅率を乗算することで調整を行う
請求項9に記載のエレベータの制御装置。 - 前記調整用演算器は、前記着床誤差測定情報が評価基準範囲に対して、行き過ぎているか、範囲内であるか、あるいは未到達なのかを判定した結果に基づいて、前記増幅率を増減させ、複数回の調整を行うことで、前記増幅率を収束させる
請求項10に記載のエレベータの制御装置。 - 前記調整用演算器は、前記伸縮量推定器で推定された前記カウント誤差と前記着床誤差測定情報とに基づいて、前記増幅率を算出する
請求項10または11に記載のエレベータの制御装置。 - 前記調整用演算器は、前記カウント誤差と前記着床誤差測定情報との加算結果を前記カウント誤差で除算した値を前記増幅率として算出する
請求項12記載のエレベータの制御装置。 - かごに接続されたガバナロープが巻き掛けられたガバナの回転に応じて出力されるガバナエンコーダのカウンタ値に基づいて、前記かごの現在位置を算出する現在位置算出器を備えたエレベータの制御装置において、前記現在位置算出器で実行されるガバナロープ伸縮量推定方法であって、
エレベータのかごに設けられた着床プレート検出器が、建築物の各階床位置に応じて設けられた着床プレートのいずれかを検出して停止している状態から移動を開始し、前記着床プレートを検出しない状態になるまでの移動量を、前記ガバナエンコーダのカウンタ値に基づいて算出する移動量算出ステップと、
前記移動量算出ステップで算出された前記移動量と、前記着床プレートの実際の長さとの比較により、前記ガバナロープの伸縮により生じる前記ガバナエンコーダのカウント誤差を推定することで、移動を開始した階床でのガバナロープ伸縮量を推定する推定ステップと
を有するガバナロープ伸縮量推定方法。
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JPWO2020070795A1 (ja) * | 2018-10-02 | 2021-04-30 | 三菱電機株式会社 | ガバナシステムの特性制御装置、及びエレベータ装置 |
JP7008839B2 (ja) | 2018-10-02 | 2022-01-25 | 三菱電機株式会社 | ガバナシステムの特性制御装置、及びエレベータ装置 |
CN111847143A (zh) * | 2020-08-25 | 2020-10-30 | 陈军 | 一种新型电梯平层方法与平层装置 |
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KR20190128258A (ko) | 2019-11-15 |
KR20180018746A (ko) | 2018-02-21 |
CN107709212A (zh) | 2018-02-16 |
JPWO2016203650A1 (ja) | 2017-09-28 |
KR102308394B1 (ko) | 2021-10-06 |
CN110723612B (zh) | 2021-05-14 |
DE112015006635B4 (de) | 2020-12-31 |
CN107709212B (zh) | 2019-11-01 |
DE112015006635T5 (de) | 2018-03-22 |
JP6397129B2 (ja) | 2018-09-26 |
CN110723612A (zh) | 2020-01-24 |
KR102044340B1 (ko) | 2019-11-13 |
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