WO2016157369A1 - Système de commande pour ascenseurs - Google Patents

Système de commande pour ascenseurs Download PDF

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Publication number
WO2016157369A1
WO2016157369A1 PCT/JP2015/059948 JP2015059948W WO2016157369A1 WO 2016157369 A1 WO2016157369 A1 WO 2016157369A1 JP 2015059948 W JP2015059948 W JP 2015059948W WO 2016157369 A1 WO2016157369 A1 WO 2016157369A1
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WO
WIPO (PCT)
Prior art keywords
car
speed
travel distance
emergency stop
value
Prior art date
Application number
PCT/JP2015/059948
Other languages
English (en)
Japanese (ja)
Inventor
英敬 石黒
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to CN201580076500.6A priority Critical patent/CN107250022B/zh
Priority to JP2017508892A priority patent/JP6299926B2/ja
Priority to PCT/JP2015/059948 priority patent/WO2016157369A1/fr
Publication of WO2016157369A1 publication Critical patent/WO2016157369A1/fr

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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
    • B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
    • B66B1/28—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical
    • B66B1/32—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on braking devices, e.g. acting on electrically controlled brakes
    • 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
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • B66B5/06—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed electrical

Definitions

  • This invention relates to an elevator control system.
  • Patent Document 1 discloses an elevator control system.
  • the control system includes a forced deceleration unit.
  • the forced deceleration section causes the car to stop urgently by the brake device when the speed of the car becomes higher than the monitoring speed.
  • the inspection mode is set. In the inspection mode, it is determined whether or not the braking torque of the brake device is secured. At this time, if the braking torque does not satisfy the inspection standard, the collision speed of the car to the shock absorber may exceed the allowable speed at the time of emergency stop of the car. For this reason, the monitoring speed of the car is set to an allowable speed with respect to the collision of the car with the shock absorber.
  • the traveling speed of the car needs to be lower than the allowable speed for the collision of the car with the shock absorber. For this reason, it is necessary to limit the maximum speed of the car to about half of the normal speed. As a result, the convenience of the elevator is reduced.
  • An object of the present invention is to provide an elevator control system capable of suppressing a decrease in convenience while ensuring safety even when a braking torque of a brake device is reduced.
  • the elevator control system includes a hoisting machine that drives the car and a brake device that brakes the hoisting machine, and a shock absorber provided at the end of the hoistway.
  • a hoisting machine that drives the car and a brake device that brakes the hoisting machine, and a shock absorber provided at the end of the hoistway.
  • an elevator comprising: a travel distance detection unit that detects a travel distance until the car stops when the hoisting machine is braked by the brake device; and an emergency stop of the car, The monitoring distance for starting the emergency stop of the car during the operation of the elevator or the monitoring speed for starting the emergency stop of the car so that the collision speed to the shock absorber becomes an allowable speed by the travel distance detection unit And an adjusting unit that adjusts according to the travel distance until the detected car stops.
  • the adjusting unit adjusts the monitoring position at which the car is urgently stopped or the monitoring speed when the car is urgently stopped according to the travel distance until the car stops. For this reason, it is possible to suppress a decrease in convenience while ensuring safety.
  • FIG. 1 is a schematic diagram of an elevator to which an elevator control system according to a first form of the present invention is applied. It is a hardware block diagram of the control system of the elevator in Embodiment 1 of this invention. It is a figure for demonstrating the inspection method of the braking torque of the brake device by the elevator control system in Embodiment 1 of this invention. It is a figure for demonstrating the setting method of the monitoring position which starts the emergency stop of the cage
  • FIG. 1 It is a schematic diagram of the elevator to which the control system of the elevator in the actual form 2 of this invention is applied. It is a figure for demonstrating the setting method of the monitoring speed at the time of starting the emergency stop of the cage
  • FIG. 1 is a schematic diagram of an elevator to which the elevator control system according to the first embodiment of the present invention is applied.
  • the hoistway 1 passes through each floor of the building.
  • the car 2 is provided inside the hoistway 1.
  • the counterweight 3 is provided inside the hoistway 1.
  • the hoisting machine 4 is provided in the upper part of the hoistway 1.
  • the rope 5 is wound around the hoisting machine 4. One side of the rope 5 suspends the car 2. The other side of the rope 5 suspends the counterweight 3.
  • the shock absorber 6 is provided at the lower end of the hoistway 1.
  • the brake device 7 is provided in the hoisting machine 4.
  • the brake device 7 includes a disc brake.
  • the brake device 7 includes a drum brake.
  • the governor 8 includes a pair of sheaves 8a and a rope 8b.
  • One of the sheaves 8a is provided in the upper part of the hoistway 1.
  • the other of the sheaves 8 a is provided at the lower part of the hoistway 1.
  • the rope 8b is wound around the pair of sheaves 8a.
  • a part of the rope 8 b is connected to the lower part of the car 2.
  • the rotation speed detector 9 is provided on one side of the sheave 8a.
  • One side of the first plate 10 a is provided on the upper part of the hoistway 1.
  • the other of the first plates 10 a is provided at the lower part of the hoistway 1.
  • One of the second plates 10b is provided in the upper part of the hoistway 1.
  • One of the second plates 10b protrudes more toward the center in the height direction of the hoistway 1 than one of the first plates 10a.
  • the other of the second plates 10b is provided in the lower part of the hoistway 1.
  • the other of the second plates 10b protrudes toward the center in the height direction of the hoistway 1 than the other of the first plates 10a.
  • the position detector 11 is provided in the upper part of the car 2.
  • the position detector 11 includes a cam switch.
  • the control system 12 includes a storage unit 12a, a speed detection unit 12b, a travel distance detection unit 12c, a control unit 12d, a forced deceleration unit 12e, and an adjustment unit 12f.
  • the storage unit 12a stores information on the first travel distance reference value and the second travel distance reference value.
  • the first travel distance reference value and the second travel distance reference value are values of the braking distance of the car 2.
  • the first travel distance reference value and the second travel distance reference value are values of travel distance until the car 2 stops when the car 2 starts an emergency stop at the inspection speed.
  • the first mileage reference value is obtained when the car 2 starts an emergency stop at the terminal side of the hoistway 1 at the first position on the terminal side of the hoistway 1 at a second monitoring speed higher than the first monitoring speed.
  • This is a value corresponding to the state of the brake device 7 in which the collision speed of the car 2 against the shock absorber 6 is equal to or lower than the allowable speed.
  • a 1st position is a position corresponding to the edge part of the center side of the hoistway 1 in the 1st plate 10a.
  • the second mileage reference value is obtained when the car 2 starts an emergency stop toward the end of the hoistway 1 at the second monitoring speed at a second position farther from the end of the hoistway 1 than the first position. This is a value corresponding to the state of the brake device 7 in which the collision speed to the shock absorber 6 is less than the allowable speed.
  • a 2nd position is a position corresponding to the edge part of the center side of the hoistway 1 in the 2nd plate 10b.
  • the input part of the speed detector 12b is connected to the output part of the rotation speed detector 9.
  • the input unit of the travel distance detector 12 c is connected to the output unit of the rotation speed detector 9.
  • the output unit of the control unit 12d is connected to the input unit of the hoisting machine 4 and the input unit of the brake device 7.
  • the input part of the forced deceleration part 12e is connected to the output part of the position detector 11, the output part of the speed detection part 12b, and the output part of the travel distance detection part 12c.
  • control unit 12d, the forced deceleration unit 12e, and the adjustment unit 12f are independent of each other.
  • the control unit 12d, the forced deceleration unit 12e, and the adjustment unit 12f are composed of mutually independent microcomputers.
  • the control unit 12d and the forced deceleration unit 12e share elevator operation information.
  • the control unit 12 d controls the hoisting machine 4.
  • the hoisting machine 4 rotates by drive control by the control unit 12d.
  • the rope 5 moves following the rotation of the hoist 4.
  • the car 2 and the counterweight 3 move following the movement of the rope 5.
  • the control unit 12d drives and controls the brake device 7.
  • the brake device 7 brakes the hoisting machine 4 by drive control by the control unit 12d.
  • the hoisting machine 4 is held stationary on the destination floor by braking of the brake device 7.
  • the rope 5 is stopped by the stationary holding of the hoist 4.
  • the car 2 and the counterweight 3 are stopped when the rope 5 is stopped. The user gets off the car 2 to the destination floor.
  • the rope 8b moves following the movement of the car 2.
  • the pair of sheaves 8a rotates following the movement of the rope 8b.
  • the rotation speed detector 9 detects one rotation speed of the sheave 8a.
  • the speed detector 12b detects the speed of the car 2 on the basis of one rotational speed of the sheave 8a detected by the rotational speed detector 9.
  • the travel distance detector 12 c detects the travel distance of the car 2 based on one rotational speed of the sheave 8 a detected by the rotational speed detector 9.
  • the position detector 11 continuously detects the first plate 10 a at the end of the hoistway 1.
  • the position detector 11 continuously detects the second plate 10 b at the end portion of the hoistway 1.
  • the forced deceleration unit 12e transmits an emergency stop command to the control unit 12d when the car 2 exceeds the monitoring speed at the end of the hoistway 1.
  • the control unit 12d operates the brake device 7 based on the emergency stop command.
  • an inspection mode is set.
  • the inspection mode is executed at a preset time interval.
  • the inspection mode is executed at an arbitrary time point by operating a switch or the like provided on the car 2 or the like during maintenance work or the like.
  • the braking distance value when the car 2 starts an emergency stop at the inspection speed is the first mileage reference It is larger than the value and less than the second mileage reference value.
  • the adjusting unit 12f sets the monitoring position at which the emergency stop of the car 2 is started from the position corresponding to the end of the first plate 10a on the center side of the hoistway 1 to the center side of the hoistway 1 on the second plate 10b. Switch to the position corresponding to the edge.
  • the adjustment unit 12f transmits a command to the control unit 12d so as not to change the setting value of the maximum speed of the car 2 but to decrease the setting value of the acceleration / deceleration speed of the car 2 at the terminal part of the hoistway 1. .
  • the adjusting unit 12f sets the monitoring position for starting the emergency stop of the car 2 from the position corresponding to the end on the center side of the hoistway 1 in the second plate 10b to the center side of the hoistway 1 in the first plate 10a. Switch to the position corresponding to the edge. At this time, the adjusting unit 12f transmits a command to the control unit 12d so as to increase the setting value of the acceleration / deceleration of the car 2 at the terminal end of the hoistway 1 without changing the setting value of the maximum speed of the car 2. .
  • FIG. 2 is a hardware configuration diagram of the elevator control system according to Embodiment 1 of the present invention.
  • the control unit 12d includes a first processing circuit 13a.
  • the first processing circuit 13a includes at least one first processor 14a and at least one first memory 15a.
  • the operation of the control unit 12d is realized when at least one first processor 14a executes a program stored in at least one first memory 15a.
  • the forced deceleration unit 12e includes a second processing circuit 13b.
  • the second processing circuit 13b includes at least one second processor 14b and at least one second memory 15b.
  • the operation of the forced deceleration unit 12e is realized by at least one second processor 14b executing a program stored in at least one second memory 15b.
  • the adjustment unit 12f includes a third processing circuit 13c.
  • the third processing circuit 13c includes at least one third processor 14c, at least one third memory, and 15c.
  • the operation of the adjustment unit 12f is realized by at least one third processor 14c executing a program stored in at least one third memory 15c.
  • FIG. 3 is a diagram for explaining a method for inspecting the braking torque of the brake device by the elevator control system according to the first embodiment of the present invention.
  • the horizontal axis in FIG. 3 is the speed of the car 2.
  • the vertical axis in FIG. 3 is the position of the car 2.
  • the control unit 12d sets the speed of 1 of the car 2 to the inspection speed.
  • the forced deceleration unit 12e causes the control unit 12d to start an emergency stop of the car 2 when the speed detection unit 12b detects that the speed of the car 2 has reached the inspection speed.
  • the travel distance detection unit 12 c detects the braking distance of the car 2. Specifically, the travel distance detection unit 12c detects the distance traveled by the car 2 from when the car 2 starts an emergency stop until the speed of the car 2 becomes zero.
  • the forced deceleration unit 12e transmits information on the braking distance of the car 2 to the adjustment unit 12f.
  • FIG. 4 is a diagram for explaining a monitoring position setting method for starting an emergency stop of a car by the elevator control system according to Embodiment 1 of the present invention.
  • the horizontal axis in FIG. 4 is the speed of the car 2 and the monitoring speed.
  • the vertical axis in FIG. 4 is the position of the car 2.
  • the speed of the car 2 is represented by a thin line.
  • the monitoring speed of the car 2 is represented by a thick line.
  • the adjusting unit 12f moves the monitoring position at which the emergency stop of the car 2 is started up and down on the second plate 10b. Set to a position corresponding to the end of the center of the road 1. As a result, the first monitoring speed is set up to the position of the second plate 10b as shown by the thick dotted line in FIG.
  • the adjustment unit 12f transmits a command to the control unit 12d so as not to change the setting value of the maximum speed of the car 2 but to decrease the setting value of the acceleration / deceleration speed of the car 2 at the terminal part of the hoistway 1. .
  • the acceleration / deceleration of the car 2 at the terminal portion of the hoistway 1 is changed from the value indicated by the solid line to the value indicated by the dotted line.
  • the value of the speed of the car 2 is smaller than the value of the first monitoring speed indicated by the thick dotted line.
  • the car 2 When the value of the braking distance of the car 2 is greater than the first travel distance reference value and less than or equal to the second travel distance reference value, the car 2 corresponds to the center side end of the hoistway 1 in the second plate 10b. Emergency stop is started at As a result, the collision speed of the car 2 to the shock absorber 6 is less than the allowable speed.
  • the adjusting unit 12f corresponds to the monitoring position where the emergency stop of the car 2 is started at the end of the first plate 10a on the center side of the hoistway 1 Set to the specified position.
  • the adjusting unit 12f transmits a command to the control unit 12d so as to increase the setting value of the acceleration / deceleration of the car 2 at the terminal end of the hoistway 1 without changing the setting value of the maximum speed of the car 2. .
  • the acceleration / deceleration of the car 2 at the terminal portion of the hoistway 1 is changed from the value indicated by the dotted line to the value indicated by the solid line.
  • the value of the speed of the car 2 is smaller than the value of the first monitoring speed indicated by the thick dotted line.
  • the car 2 When the value of the travel distance until the car 2 stops is equal to or less than the first travel distance reference value, the car 2 starts an emergency stop at a position corresponding to the central end of the hoistway 1 in the first plate 10a. . As a result, the collision speed of the car 2 to the shock absorber 6 is less than the allowable speed.
  • FIG. 5 is a diagram for explaining the operation of the adjusting unit of the elevator control system according to Embodiment 1 of the present invention.
  • step S1 the adjustment unit 12f determines whether or not the value of the braking distance when the car 2 makes an emergency stop at the inspection speed is equal to or less than the first travel distance reference value.
  • step S2 the adjustment unit 12f sets the monitoring position at which the emergency stop of the car 2 is started to a position corresponding to the central end of the hoistway 1 in the first plate 10a.
  • the forced deceleration unit 12e monitors the position of the car 2 using the first plate 10a.
  • step S1 If it is determined in step S1 that the braking distance value when the car 2 is urgently stopped at the inspection speed is not less than the first travel distance reference value, the process proceeds to step S3.
  • step S3 the adjustment unit 12f determines whether or not the value of the braking distance when the car 2 is urgently stopped at the inspection speed is greater than the first travel distance reference value and less than or equal to the second travel distance reference value.
  • step S3 If the value of the braking distance when the car 2 makes an emergency stop at the inspection speed in step S3 is greater than the first travel distance reference value and less than or equal to the second travel distance reference value, the process proceeds to step S4.
  • the adjusting unit 12f sets the monitoring position at which the emergency stop of the car 2 is started to a position corresponding to the central end of the hoistway 1 in the second plate 10b.
  • the forced deceleration unit 12e monitors the position of the car 2 using the second plate 10b.
  • step S3 When the value of the braking distance when the car 2 is urgently stopped at the inspection speed in step S3 is larger than the second mileage reference value, the position corresponding to the center side end of the hoistway 1 in the second plate 10b. Even if the emergency stop of the car 2 is started, the collision speed of the car 2 to the shock absorber 6 may be higher than the allowable speed. In this case, the process proceeds to step S5. In step S ⁇ b> 5, the adjusting unit 12 f sets the monitoring speed to an allowable speed for the collision with the shock absorber 6 regardless of the position of the car 2. At this time, the operation of the elevator may be stopped.
  • the adjustment unit 12f adjusts the monitoring position where the emergency stop of the car 2 is started according to the braking distance of the car 2. For this reason, it is possible to suppress a decrease in convenience while ensuring safety.
  • the set value of the maximum speed of the car 2 is not changed.
  • the monitoring position for starting the emergency stop of the car 2 is set at a position farther from the terminal end of the hoistway 1 than the previous setting.
  • the set value of the acceleration / deceleration of the car 2 at the terminal portion of the hoistway 1 is smaller than the previous set value. For this reason, the car 2 can travel at the maximum speed. As a result, an increase in the traveling time of the car 2 can be suppressed.
  • the set value of the maximum speed of the car 2 is not changed.
  • the monitoring position for starting the emergency stop of the car 2 is set at a position closer to the end of the hoistway 1 than the previous setting.
  • the set value of the acceleration / deceleration of the car 2 at the end portion of the hoistway 1 is larger than the previous set value. For this reason, the traveling time of the car 2 can be shortened.
  • a monitoring position where the emergency stop of the car 2 is started at an arbitrary time can be set. For this reason, it is possible to appropriately set the monitoring position at which the emergency stop of the car 2 is started when a decrease in the braking torque of the brake device 7 is suspected.
  • the inspection of the braking torque of the brake device 7 is performed at a preset time interval. For this reason, even when the emergency stop of the car 2 does not occur during normal operation, it is possible to detect a decrease in the braking torque of the brake device 7.
  • the forced deceleration part 12e etc. may not be a microcomputer.
  • the detection of the end portion of the hoistway 1, the detection that the speed of the car 2 exceeds the monitoring speed, and the control of the operation of the brake device 7 may be controlled by a plurality of relays. Also in this case, it is possible to suppress a decrease in convenience while ensuring safety.
  • the adjustment unit 12f may be included in the forced deceleration unit 12e. Also in this case, it is possible to suppress a decrease in convenience while ensuring safety.
  • first plate 10a or the second plate 10b is discretely arranged at a preset position for the convenience of equipment arrangement inside the hoistway 1, regarding the first plate 10a and the second plate 10b, What is necessary is just to detect that the cage
  • a cam rail may be provided in the hoistway 1 instead of the first plate 10a.
  • the car 2 may be provided with a switch. The switch continuously detects the cam rail by being pushed by the cam rail at the end of the hoistway 1. Also in this case, the adjustment unit 12f adjusts the monitoring position where the emergency stop of the car 2 is started according to the braking distance of the car 2. For this reason, it is possible to suppress a decrease in convenience while ensuring safety.
  • FIG. FIG. 6 is a schematic diagram of an elevator to which the elevator control system according to the second embodiment of the present invention is applied.
  • symbol is attached
  • the third plate 10 c is provided in the lower part of the hoistway 1.
  • the control system 12 also includes a position detection unit 12g.
  • the input part of the position detector 12g is connected to the output part of the rotational speed detector 9 and the output part of the position detector 11.
  • the output part of the position detection part 12g is connected to the input part of the forced deceleration part 12e.
  • the position detector 12g stores in advance information on the installation position of the third plate 10c.
  • the position detection unit 12g stores the installation position of the third plate 10c by learning. The position detector 12g corrects the recognition of the position of the car 2 to the stored set position of the third plate 10c when the position detector 11 detects the third plate 10c.
  • the storage unit 12a stores a third travel distance reference value and a fourth travel distance reference value.
  • the third travel distance reference value and the fourth travel distance reference value are values of the braking distance of the car 2.
  • the third travel distance reference value and the fourth travel distance reference value are values of travel distances until the car 2 stops when the car 2 starts an emergency stop at the inspection speed.
  • the third mileage reference value is a brake device in which when the car 2 starts an emergency stop at the third monitoring speed toward the end of the hoistway 1, the collision speed of the car 2 against the shock absorber 6 is less than the allowable speed.
  • the value corresponds to the state of 7.
  • the fourth mileage reference value allows the collision speed of the car 2 to the shock absorber 6 when the car 2 starts an emergency stop toward the terminal side of the hoistway 1 at a fourth monitoring speed lower than the third monitoring speed. It is a value corresponding to the state of the brake device 7 that is below the speed.
  • an inspection mode is set.
  • the inspection mode is executed at a preset time interval.
  • the braking distance when the car 2 starts an emergency stop at the inspection speed is the third mileage reference value. Greater than the fourth mileage reference value.
  • the adjustment unit 12f switches the monitoring speed at the time of starting the emergency stop of the car 2 from the third monitoring speed to the fourth monitoring speed. At this time, the adjusting unit 12f transmits a command to the control unit 12d so as not to change the maximum speed of the car 2 but to decrease the set value of the acceleration / deceleration of the car 2 at the terminal end of the hoistway 1.
  • the adjustment unit 12f switches the monitoring speed at the time of starting the emergency stop of the car 2 from the fourth monitoring speed to the third monitoring speed. At this time, the adjustment unit 12f transmits a command to the control unit 12d so as to increase the set value of the acceleration / deceleration of the car 2 at the terminal part of the hoistway 1 without changing the maximum speed of the car 2.
  • FIG. 7 is a diagram for explaining a monitoring speed setting method when an emergency stop of a car is started by the elevator control system according to the second embodiment of the present invention.
  • the horizontal axis in FIG. 7 represents the speed of the car 2 and the monitoring speed.
  • the vertical axis in FIG. 7 is the position of the car 2.
  • the speed of the car 2 is represented by a thin line.
  • the monitoring speed of the car 2 is represented by a thick line.
  • the adjusting unit 12f sets the monitoring speed when the emergency stop of the car 2 is started to the fourth monitoring speed. Set to.
  • the value of the monitoring speed at the time of starting the emergency stop of the car 2 is changed from the value shown by the thick solid line to the value shown by the thick dotted line as shown in FIG.
  • the adjusting unit 12f transmits a command to the control unit 12d so as to decrease the setting value of the acceleration / deceleration of the car 2 at the terminal end of the hoistway 1 without changing the setting value of the maximum speed of the car 2. To do. As a result, as shown in FIG. 7, the speed value of the car 2 is smaller than the value of the fourth monitoring speed.
  • the car 2 When the braking distance value of the car 2 is greater than the third travel distance reference value and less than or equal to the fourth travel distance reference value, the car 2 starts an emergency stop at the fourth monitoring speed or less. As a result, the collision speed of the car 2 to the shock absorber 6 is less than the allowable speed.
  • the adjustment unit 12f sets the monitoring speed when the car 2 starts an emergency stop to the third speed.
  • the value of the monitoring speed when starting the emergency stop of the car 2 is changed from the value indicated by the thick dotted line to the value indicated by the thick solid line as shown in FIG.
  • the adjusting unit 12f transmits a command to the control unit 12d so as to increase the set value of the acceleration / deceleration of the car 2 at the terminal end of the hoistway 1 without changing the set value of the maximum speed of the car 2. To do. As a result, as shown in FIG. 7, the speed value of the car 2 is smaller than the value of the third monitoring speed.
  • the car 2 When the value of the braking distance of the car 2 is equal to or less than the third mileage reference value, the car 2 starts an emergency stop at the third monitoring speed or less. As a result, the collision speed of the car 2 to the shock absorber 6 is less than the allowable speed.
  • FIG. 8 is a diagram for explaining the operation of the adjusting portion of the elevator control system according to Embodiment 2 of the present invention.
  • step S11 the adjustment unit 12f determines whether or not the value of the braking distance when the car 2 makes an emergency stop at the inspection speed is equal to or less than the third travel distance reference value.
  • step S11 If the value of the braking distance when the car 2 makes an emergency stop at the inspection speed in step S11 is less than or equal to the third mileage reference value, the process proceeds to step S12.
  • step S12 the adjustment unit 12f sets the monitoring speed at the time of starting the emergency stop of the car 2 to the third monitoring speed.
  • step S11 If it is determined in step S11 that the braking distance value when the car 2 is urgently stopped at the inspection speed is not less than or equal to the third travel distance reference value, the process proceeds to step S13.
  • step S13 the adjusting unit 12f determines whether or not the value of the braking distance when the car 2 makes an emergency stop at the inspection speed is greater than the third travel distance reference value and less than or equal to the fourth travel distance reference value.
  • step S13 If the value of the braking distance when the car 2 makes an emergency stop at the inspection speed in step S13 is greater than the third travel distance reference value and less than or equal to the fourth travel distance reference value, the process proceeds to step S14.
  • step S14 the adjustment unit 12f sets the monitoring speed at the time of starting the emergency stop of the car 2 to the fourth monitoring speed.
  • step S13 If the value of the braking distance when the car 2 is urgently stopped at the inspection speed in step S13 is larger than the fourth mileage reference value, the car 2 starts to be urgently stopped when the speed of the car 2 is the fourth monitoring speed. Even so, the collision speed of the car 2 to the shock absorber 6 may be higher than the allowable speed. In this case, the process proceeds to step S15.
  • step S ⁇ b> 15 the adjusting unit 12 f sets the monitoring speed of the car 2 to an allowable speed for the collision of the car 2 with the shock absorber 6 regardless of the position of the car 2. At this time, the operation of the elevator may be stopped.
  • the adjusting unit 12f adjusts the monitoring speed when starting the emergency stop of the car 2 according to the braking distance of the car 2. For this reason, it is possible to suppress a decrease in convenience while ensuring safety.
  • the set value of the maximum speed of the car 2 is not changed.
  • the set value of the monitoring speed when the car 2 at the terminal portion of the hoistway 1 is stopped urgently becomes smaller than the previous set value.
  • the set value of the acceleration / deceleration of the car 2 is smaller than the previous set value. For this reason, the car 2 can travel at the maximum speed. As a result, an increase in the traveling time of the car 2 can be suppressed.
  • the set value of the maximum speed of the car 2 is not changed.
  • the set value of the monitoring speed when the car 2 at the terminal part of the hoistway 1 is stopped urgently becomes larger than the previous set value.
  • the set value of the acceleration / deceleration of the car 2 is larger than the previous set value. For this reason, the traveling time of the car 2 can be shortened.
  • the monitoring speed at the time of starting the emergency stop of the car 2 at an arbitrary time can be set. For this reason, it is possible to appropriately set the monitoring position at which the emergency stop of the car 2 is started when a decrease in the braking torque of the brake device 7 is suspected.
  • the inspection of the braking torque of the brake device 7 is performed at a preset time interval. For this reason, even when the emergency stop of the car 2 does not occur during normal operation, it is possible to detect a decrease in the braking torque of the brake device 7.
  • a decrease in the braking torque of the brake device 7 may be estimated from the measurement result of the temperature sensor or the humidity sensor. In this case, safety can be ensured even if the braking torque is not inspected at preset time intervals. For example, if the monitoring speed is increased when the humidity value exceeds a preset value, a decrease in convenience can be suppressed while ensuring safety.
  • the elevator control system according to the present invention can be used for a system that suppresses a decrease in convenience while ensuring safety.

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Abstract

Cette invention concerne un système de commande pour ascenseurs, qui permet de garantir la sécurité et permet de supprimer une détérioration du confort même si le couple de freinage d'un dispositif de freinage est réduit. Ledit système de commande est destiné à des ascenseurs qui sont équipés d'une cabine (2), une machine de levage (4), d'un dispositif de freinage (7), et d'un tampon (6) disposé à l'intérieur d'une gaine d'ascenseur (1). Ledit système de commande comprend : une unité de détection de distance de parcours (12c) qui détecte la distance parcourue par la cabine (2) avant une mise à l'arrêt après que le dispositif de freinage (7) applique les freins à la machine de levage (4) ; et une unité de réglage (12f) qui règle, en fonction de la distance parcourue par la cabine (2) avant une mise à l'arrêt détectée par l'unité de détection de distance de parcours (12c), la position de contrôle ou la vitesse de contrôle pour initier l'arrêt d'urgence de la cabine (2) pendant le fonctionnement d'un ascenseur, de sorte qu'au moment d'un arrêt d'urgence de la cabine (2), la vitesse de collision de la cabine (2) avec le tampon (6) devienne une vitesse admissible.
PCT/JP2015/059948 2015-03-30 2015-03-30 Système de commande pour ascenseurs WO2016157369A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201580076500.6A CN107250022B (zh) 2015-03-30 2015-03-30 电梯的控制系统
JP2017508892A JP6299926B2 (ja) 2015-03-30 2015-03-30 エレベータの制御システム
PCT/JP2015/059948 WO2016157369A1 (fr) 2015-03-30 2015-03-30 Système de commande pour ascenseurs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2015/059948 WO2016157369A1 (fr) 2015-03-30 2015-03-30 Système de commande pour ascenseurs

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WO2016157369A1 true WO2016157369A1 (fr) 2016-10-06

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
EP4008667A1 (fr) * 2020-12-04 2022-06-08 Otis Elevator Company Décélération d'urgence de terminal dans des systèmes d'ascenseur
JP7184219B1 (ja) * 2022-05-11 2022-12-06 三菱電機株式会社 エレベーター装置

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CN110002341A (zh) * 2019-04-30 2019-07-12 徐工集团工程机械股份有限公司建设机械分公司 工程机械执行机构执行动作的速度控制方法和系统
WO2021176642A1 (fr) * 2020-03-05 2021-09-10 三菱電機株式会社 Dispositif d'ascenseur et dispositif de commande d'ascenseur
DE112020007125T5 (de) * 2020-04-27 2023-03-09 Mitsubishi Electric Corporation Aufzugsvorrichtung
EP4008664A1 (fr) * 2020-12-04 2022-06-08 Otis Elevator Company Procédé de prévention de saut de gravité au niveau d'un arrêt d'urgence dans des systèmes d'ascenseur

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JPS5441909U (fr) * 1977-08-31 1979-03-20
JPH11222371A (ja) * 1998-02-06 1999-08-17 Mitsubishi Electric Building Techno Service Co Ltd エレベータのブレーキ装置
JP2003095555A (ja) * 2001-09-25 2003-04-03 Toshiba Elevator Co Ltd エレベータの制御装置
JP2006160439A (ja) * 2004-12-07 2006-06-22 Mitsubishi Electric Corp エレベータ装置
JP2011184205A (ja) * 2011-07-01 2011-09-22 Mitsubishi Electric Corp エレベータ装置

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FI95021C (fi) * 1993-06-08 1995-12-11 Kone Oy Menetelmä ja laitteisto hissin tarrauslaitteen laukaisemiseksi
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JP4553535B2 (ja) * 2001-09-28 2010-09-29 三菱電機株式会社 エレベータ装置
EP1880967B1 (fr) * 2005-03-30 2014-11-26 Mitsubishi Denki Kabushiki Kaisha Ascenseur

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JPS5441909U (fr) * 1977-08-31 1979-03-20
JPH11222371A (ja) * 1998-02-06 1999-08-17 Mitsubishi Electric Building Techno Service Co Ltd エレベータのブレーキ装置
JP2003095555A (ja) * 2001-09-25 2003-04-03 Toshiba Elevator Co Ltd エレベータの制御装置
JP2006160439A (ja) * 2004-12-07 2006-06-22 Mitsubishi Electric Corp エレベータ装置
JP2011184205A (ja) * 2011-07-01 2011-09-22 Mitsubishi Electric Corp エレベータ装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4008667A1 (fr) * 2020-12-04 2022-06-08 Otis Elevator Company Décélération d'urgence de terminal dans des systèmes d'ascenseur
JP7184219B1 (ja) * 2022-05-11 2022-12-06 三菱電機株式会社 エレベーター装置

Also Published As

Publication number Publication date
CN107250022A (zh) 2017-10-13
JPWO2016157369A1 (ja) 2017-07-20
JP6299926B2 (ja) 2018-03-28
CN107250022B (zh) 2019-02-05

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