WO2016157369A1 - Control system for elevators - Google Patents

Control system for elevators 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
French (fr)
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 PCT/JP2015/059948 priority Critical patent/WO2016157369A1/en
Priority to CN201580076500.6A priority patent/CN107250022B/en
Priority to JP2017508892A priority patent/JP6299926B2/en
Publication of WO2016157369A1 publication Critical patent/WO2016157369A1/en

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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.

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

Abstract

Provided is a control system for elevators which ensures safety and allows a reduction in convenience to be suppressed even if the braking torque of a braking device is reduced. The control system is for elevators which are equipped with a car (2), a hoisting machine (4), a braking device (7), and a buffer (6) provided in the interior of a hoistway (1). The control system is equipped with: a travel distance detection unit (12c) which detects the distance the car (2) travels before coming to a stop after the braking device (7) applies the brakes to the hoisting machine (4); and an adjustment unit (12f) which adjusts, according to the distance the car (2) travels before coming to a stop detected by the travel distance detection unit (12c), the monitoring position or monitoring speed for starting the emergency stop of the car (2) during the operation of an elevator, so that at the time of an emergency stop of the car (2), the speed of collision of the car (2) with the buffer (6) becomes an allowable speed.

Description

エレベータの制御システムElevator control system
　この発明は、エレベータの制御システムに関する。 This invention relates to an elevator control system.
　特許文献１は、エレベータの制御システムを開示する。当該制御システムは、強制減速部を備える。強制減速部は、かごの速度が監視速度よりも高くなった際にブレーキ装置によりかごを緊急停止させる。 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.
　制御システムにおいては、検査モードが設定される。検査モードにおいては、ブレーキ装置の制動トルクが確保されているか否かが判定される。この際、制動トルクが検査基準を満たしていないと、かごの緊急停止時においてかごの緩衝器への衝突速度が許容速度を超えるおそれがある。このため、かごの監視速度は、かごの緩衝器への衝突に対する許容速度に設定される。 In the control system, 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.
国際公開第２００６／１０３７６９号International Publication No. 2006/103769
　しかしながら、かごの監視速度がかごの緩衝器への衝突に対する許容速度に設定された場合、かごの走行速度をかごの緩衝器への衝突に対する許容速度よりも低くする必要がある。このため、かごの最高速度を通常時の半分程度に制限する必要がある。その結果、エレベータの利便性が低下する。 However, when the monitoring speed of the car is set to the allowable speed for 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.
　この発明は、上述の課題を解決するためになされた。この発明の目的は、ブレーキ装置の制動トルクが減少している場合でも、安全性を担保しつつ、利便性の低下を抑制することができるエレベータの制御システムを提供することである。 This invention has been made to solve the above-mentioned problems. 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.
　この発明に係るエレベータの制御システムは、昇降路の内部に設けられたかごと前記かごを駆動する巻上機と前記巻上機を制動するブレーキ装置と前記昇降路の終端部に設けられた緩衝器とを備えたエレベータにおいて、前記ブレーキ装置により前記巻上機を制動した際に前記かごが停止するまでの走行距離を検知する走行距離検知部と、前記かごを緊急停止させた際に前記かごの前記緩衝器への衝突速度が許容速度となるように前記エレベータの運行時における前記かごの緊急停止を開始する監視位置または前記かごの緊急停止を開始する際の監視速度を前記走行距離検知部により検知された前記かごが停止するまでの走行距離に応じて調整する調整部と、を備えた。 The elevator control system according to the present invention 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. In 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.
　これらの発明によれば、調整部は、かごの緊急停止を開始する監視位置またはかごの緊急停止を開始する際の監視速度をかごが停止するまでの走行距離に応じて調整する。このため、安全性を担保しつつ、利便性の低下を抑制することができる。 According to these inventions, 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.
この発明の実態の形態１におけるエレベータの制御システムが適用されるエレベータの概要図である。BRIEF DESCRIPTION OF THE DRAWINGS 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. この発明の実施の形態１におけるエレベータの制御システムのハードウェア構成図である。It is a hardware block diagram of the control system of the elevator in Embodiment 1 of this invention. この発明の実施の形態１におけるエレベータの制御システムによるブレーキ装置の制動トルクの検査方法を説明するための図である。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. この発明の実施の形態１におけるエレベータの制御システムによるかごの緊急停止を開始する監視位置の設定方法を説明するための図である。It is a figure for demonstrating the setting method of the monitoring position which starts the emergency stop of the cage | basket | car by the elevator control system in Embodiment 1 of this invention. この発明の実施の形態１におけるエレベータの制御システムの調整部の動作を説明するための図である。It is a figure for demonstrating operation | movement of the adjustment part of the control system of the elevator in Embodiment 1 of this invention. この発明の実態の形態２におけるエレベータの制御システムが適用されるエレベータの概要図である。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. この発明の実施の形態２におけるエレベータの制御システムによるかごの緊急停止を開始する際の監視速度の設定方法を説明するための図である。It is a figure for demonstrating the setting method of the monitoring speed at the time of starting the emergency stop of the cage | basket | car by the elevator control system in Embodiment 2 of this invention. この発明の実施の形態２におけるエレベータの制御システムの調整部の動作を説明するための図である。It is a figure for demonstrating operation | movement of the adjustment part of the control system of the elevator in Embodiment 2 of this invention.
　この発明を実施するための形態について添付の図面に従って説明する。なお、各図中、同一又は相当する部分には同一の符号が付される。当該部分の重複説明は適宜に簡略化または省略する。 DETAILED DESCRIPTION Embodiments for carrying out the invention will be described with reference to the accompanying drawings. In addition, the same code | symbol is attached | subjected to the part which is the same or it corresponds in each figure. The overlapping description of the part is appropriately simplified or omitted.
実施の形態１．
　図１はこの発明の実態の形態１におけるエレベータの制御システムが適用されるエレベータの概要図である。 Embodiment 1 FIG.
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.
　図１において、昇降路１は、建築物の各階を貫く。かご２は、昇降路１の内部に設けられる。釣合おもり３は、昇降路１の内部に設けられる。巻上機４は、昇降路１の上部に設けられる。ロープ５は、巻上機４に巻き掛けられる。ロープ５の一側は、かご２を吊る。ロープ５の他側は、釣合おもり３を吊る。緩衝器６は、昇降路１の下側の終端に設けられる。 In Fig. 1, 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.
　ブレーキ装置７は、巻上機４に設けられる。例えば、ブレーキ装置７は、ディスクブレーキからなる。例えば、ブレーキ装置７は、ドラムブレーキからなる。 The brake device 7 is provided in the hoisting machine 4. For example, the brake device 7 includes a disc brake. For example, the brake device 7 includes a drum brake.
　調速機８は、一対のシーブ８ａとロープ８ｂとを備える。シーブ８ａの一方は、昇降路１の上部に設けられる。シーブ８ａの他方は、昇降路１の下部に設けられる。ロープ８ｂは、一対のシーブ８ａに巻き掛けられる。ロープ８ｂの一部は、かご２の下部に連結される。回転数検知器９は、シーブ８ａの一方に設けられる。 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.
　第１プレート１０ａの一方は、昇降路１の上部に設けられる。第１プレート１０ａの他方は、昇降路１の下部に設けられる。第２プレート１０ｂの一方は、昇降路１の上部に設けられる。第２プレート１０ｂの一方は、第１プレート１０ａの一方よりも昇降路１の高さ方向における中央側に突き出す。第２プレート１０ｂの他方は、昇降路１の下部に設けられる。第２プレート１０ｂの他方は、第１プレート１０ａの他方よりも昇降路１の高さ方向における中央側に突き出す。 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.
　位置検知器１１は、かご２の上部に設けられる。例えば、位置検知器１１は、カムスイッチからなる。 The position detector 11 is provided in the upper part of the car 2. For example, the position detector 11 includes a cam switch.
　制御システム１２は、記憶部１２ａと速度検知部１２ｂと走行距離検知部１２ｃと制御部１２ｄと強制減速部１２ｅと調整部１２ｆとを備える。 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.
　記憶部１２ａは、第１走行距離基準値と第２走行距離基準値との情報を記憶する。第１走行距離基準値と第２走行距離基準値とは、かご２の制動距離の値である。具体的には、第１走行距離基準値と第２走行距離基準値とは、かご２が検査速度で緊急停止を開始した際にかご２が停止するまでの走行距離の値である。 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. Specifically, 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.
　第１走行距離基準値は、昇降路１の終端側における第１位置においてかご２が第１監視速度よりも高い第２監視速度以下で昇降路１の終端側へ緊急停止を開始した際に、かご２の緩衝器６への衝突速度が許容速度以下となるブレーキ装置７の状態に対応した値である。第１位置は、第１プレート１０ａにおける昇降路１の中央側の端部に対応した位置である。 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.
　第２走行距離基準値は、第１位置よりも昇降路１の終端から離れた第２位置においてかご２が第２監視速度で昇降路１の終端側へ緊急停止を開始した際に、かご２の緩衝器６への衝突速度が許容速度以下となるブレーキ装置７の状態に対応した値である。第２位置は、第２プレート１０ｂにおける昇降路１の中央側の端部に対応した位置である。 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.
　速度検知部１２ｂの入力部は、回転数検知器９の出力部に接続される。走行距離検知部１２ｃの入力部は、回転数検知器９の出力部に接続される。制御部１２ｄの出力部は、巻上機４の入力部とブレーキ装置７の入力部とに接続される。強制減速部１２ｅの入力部は、位置検知器１１の出力部と速度検知部１２ｂの出力部と走行距離検知部１２ｃの出力部とに接続される。 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.
　制御部１２ｄと強制減速部１２ｅと調整部１２ｆとは互いに独立する。例えば、制御部１２ｄと強制減速部１２ｅと調整部１２ｆとは、互いに独立したマイクロコンピュータからなる。制御部１２ｄと強制減速部１２ｅとは、エレベータの運転情報を共有する。 The control unit 12d, the forced deceleration unit 12e, and the adjustment unit 12f are independent of each other. For example, 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.
　利用者がかご２に乗ると、制御部１２ｄは、巻上機４を駆動制御する。巻上機４は、制御部１２ｄによる駆動制御により回転する。ロープ５は、巻上機４の回転に追従して移動する。かご２と釣合おもり３とは、ロープ５の移動に追従して移動する。 When the user gets on the car 2, 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.
　かご２が目的階に近づくと、制御部１２ｄは、ブレーキ装置７を駆動制御する。ブレーキ装置７は、制御部１２ｄによる駆動制御により巻上機４を制動する。巻上機４は、ブレーキ装置７の制動により目的階において静止保持される。ロープ５は、巻上機４の静止保持により停止する。かご２と釣合おもり３とは、ロープ５の停止により停止する。利用者は、かご２から目的階に降りる。 When the car 2 approaches the destination floor, 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.
　調速機８において、ロープ８ｂは、かご２の移動に追従して移動する。一対のシーブ８ａは、ロープ８ｂの移動に追従して回転する。回転数検知器９は、シーブ８ａの一方の回転数を検知する。 In the governor 8, 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.
　速度検知部１２ｂは、回転数検知器９により検知されたシーブ８ａの一方の回転数に基づいてかご２の速度を検知する。走行距離検知部１２ｃは、回転数検知器９により検知されたシーブ８ａの一方の回転数に基づいてかご２の走行距離を検知する。 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.
　位置検知器１１は、昇降路１の終端部において第１プレート１０ａを連続的に検出する。位置検知器１１は、昇降路１の終端部において第２プレート１０ｂを連続的に検出する。 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.
　強制減速部１２ｅは、かご２が昇降路１の終端部において監視速度を超えた場合に制御部１２ｄに緊急停止指令を送信する。制御部１２ｄは、当該緊急停止指令に基づいてブレーキ装置７を動作させる。その結果、かご２が緩衝器６に衝突する際、かご２の速度は、許容速度以下となる。このため、かご２の衝撃は、適切に緩和される。 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. As a result, when the car 2 collides with the shock absorber 6, the speed of the car 2 is equal to or lower than the allowable speed. For this reason, the impact of the car 2 is moderated appropriately.
　制御システム１２においては、検査モードが設定される。例えば、当該検査モードは、予め設定された時間間隔で実行される。例えば、当該検査モードは、保守作業時等においてかご２等に設けられたスイッチ等を操作することにより任意の時点で実行される。 In the control system 12, an inspection mode is set. For example, the inspection mode is executed at a preset time interval. For example, 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.
　温度、湿度、酸化、さびの状態等が要因となってブレーキ装置７の制動トルクが減少した場合、かご２が検査速度で緊急停止を開始した際の制動距離の値は、第１走行距離基準値よりも大きくて第２走行距離基準値以下となる。この場合、調整部１２ｆは、かご２の緊急停止を開始する監視位置を第１プレート１０ａにおける昇降路１の中央側の端部に対応した位置から第２プレート１０ｂにおける昇降路１の中央側の端部に対応した位置に切り替える。この際、調整部１２ｆは、かご２の最高速度の設定値を変更せず、昇降路１の終端部におけるかご２の加減速度の設定値を小さくするように、制御部１２ｄに指令を送信する。 When the braking torque of the brake device 7 decreases due to factors such as temperature, humidity, oxidation, and rust, 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. In this case, 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. At this time, 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. .
　ブレーキ装置７の修理、交換等によりブレーキ装置７の制動トルクが増加した場合、かご２が検査速度で緊急停止した際の制動距離は、第１走行距離基準値以下となる。この場合、調整部１２ｆは、かご２の緊急停止を開始する監視位置を第２プレート１０ｂにおける昇降路１の中央側の端部に対応した位置から第１プレート１０ａにおける昇降路１の中央側の端部に対応した位置に切り替える。この際、調整部１２ｆは、かご２の最高速度の設定値を変更せず、昇降路１の終端部におけるかご２の加減速度の設定値を大きくするように、制御部１２ｄに指令を送信する。 When the braking torque of the brake device 7 increases due to repair, replacement, etc. of the brake device 7, 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. In this case, 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. .
　次に、図２を用いて、制御部１２ｄと強制減速部１２ｅと調整部１２ｆとを説明する。
　図２はこの発明の実施の形態１におけるエレベータの制御システムのハードウェア構成図である。 Next, the control part 12d, the forced deceleration part 12e, and the adjustment part 12f are demonstrated using FIG.
FIG. 2 is a hardware configuration diagram of the elevator control system according to Embodiment 1 of the present invention.
　制御部１２ｄは、第１処理回路１３ａを備える。第１処理回路１３ａは、少なくとも一つの第１プロセッサ１４ａと少なくとも一つの第１メモリ１５ａとを備える。制御部１２ｄの動作は、少なくとも一つの第１プロセッサ１４ａが少なくとも一つの第１メモリ１５ａに記憶されたプログラムを実行することにより実現される。 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.
　強制減速部１２ｅは、第２処理回路１３ｂを備える。第２処理回路１３ｂは、少なくとも一つの第２プロセッサ１４ｂと少なくとも一つの第２メモリ１５ｂとを備える。強制減速部１２ｅの動作は、少なくとも一つの第２プロセッサ１４ｂが少なくとも一つの第２メモリ１５ｂに記憶されたプログラムを実行することにより実現される。 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.
　調整部１２ｆは、第３処理回路１３ｃを備える。第３処理回路１３ｃは、少なくとも一つの第３プロセッサ１４ｃと少なくとも一つの第３メモリと１５ｃを備える。調整部１２ｆの動作は、少なくとも一つの第３プロセッサ１４ｃが少なくとも一つの第３メモリ１５ｃに記憶されたプログラムを実行することにより実現される。 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.
　次に、図３を用いて、ブレーキ装置７の制動トルクの検査方法を説明する。
　図３はこの発明の実施の形態１におけるエレベータの制御システムによるブレーキ装置の制動トルクの検査方法を説明するための図である。図３の横軸はかご２の速度である。図３の縦軸はかご２の位置である。 Next, a method for inspecting the braking torque of the brake device 7 will be described with reference to FIG.
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.
　検査モードにおいて、制御部１２ｄは、かご２の１の速度を検査速度に設定する。強制減速部１２ｅは、速度検知部１２ｂによりかご２の速度が検査速度に達したことが検知された際に制御部１２ｄにかご２の緊急停止を開始させる。走行距離検知部１２ｃは、かご２の制動距離を検知する。具体的には、走行距離検知部１２ｃは、かご２が緊急停止を開始してからかご２の速度が０となるまでにかご２が走行した距離を検知する。強制減速部１２ｅは、かご２の制動距離の情報を調整部１２ｆに送信する。 In the inspection mode, 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.
　次に、図４を用いて、かご２の緊急停止を開始する監視位置の設定方法を説明する。
　図４はこの発明の実施の形態１におけるエレベータの制御システムによるかごの緊急停止を開始する監視位置の設定方法を説明するための図である。図４の横軸はかご２の速度および監視速度である。図４の縦軸はかご２の位置である。図４において、かご２の速度は細線で表される。かご２の監視速度は、太線で表される。 Next, a monitoring position setting method for starting the emergency stop of the car 2 will be described with reference to FIG.
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. In FIG. 4, 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.
　かご２の制動距離の値が第１走行距離基準値よりも大きくて第２走行距離基準値以下の場合、調整部１２ｆは、かご２の緊急停止を開始する監視位置を第２プレート１０ｂにおける昇降路１の中央側の端部に対応した位置に設定する。その結果、第１監視速度は、図４の太点線で示す通りに第２プレート１０ｂの位置まで設定される。 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 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.
　この際、調整部１２ｆは、かご２の最高速度の設定値を変更せず、昇降路１の終端部におけるかご２の加減速度の設定値を小さくするように、制御部１２ｄに指令を送信する。その結果、図４に示す通り、昇降路１の終端部におけるかご２の加減速度は、実線で示した値から点線で示した値に変更される。かご２の速度の値は、太点線で示した第１監視速度の値よりも小さくなる。 At this time, 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. . As a result, as shown in FIG. 4, 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.
　かご２の制動距離の値が第１走行距離基準値よりも大きくて第２走行距離基準値以下の場合、かご２は、第２プレート１０ｂにおける昇降路１の中央側の端部に対応した位置において緊急停止を開始する。その結果、かご２の緩衝器６への衝突速度は、許容速度以下となる。 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.
　かご２の制動距離の値が第１走行距離基準値以下の場合、調整部１２ｆは、かご２の緊急停止を開始する監視位置を第１プレート１０ａにおける昇降路１の中央側の端部に対応した位置に設定する。 When the value of the braking distance of the car 2 is equal to or less than the first travel distance reference value, 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.
　この際、調整部１２ｆは、かご２の最高速度の設定値を変更せず、昇降路１の終端部におけるかご２の加減速度の設定値を大きくするように、制御部１２ｄに指令を送信する。その結果、図４に示す通り、昇降路１の終端部におけるかご２の加減速度は、点線で示した値から実線で示した値に変更される。かご２の速度の値は、太点線で示した第１監視速度の値よりも小さくなる。 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. . As a result, as shown in FIG. 4, 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.
　かご２が停止するまでの走行距離の値が第１走行距離基準値以下の場合、かご２は、第１プレート１０ａにおける昇降路１の中央側の端部に対応した位置において緊急停止を開始する。その結果、かご２の緩衝器６への衝突速度は、許容速度以下となる。 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.
　次に、図５を用いて、調整部１２ｆの動作を説明する。
　図５はこの発明の実施の形態１におけるエレベータの制御システムの調整部の動作を説明するための図である。 Next, the operation of the adjustment unit 12f will be described with reference to FIG.
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.
　ステップＳ１では、調整部１２ｆは、かご２が検査速度で緊急停止した際の制動距離の値が第１走行距離基準値以下か否かを判定する。 In 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.
　ステップＳ１でかご２が検査速度で緊急停止した際の制動距離の値が第１走行距離基準値以下の場合は、ステップＳ２に進む。ステップＳ２では、調整部１２ｆは、かご２の緊急停止を開始する監視位置を第１プレート１０ａにおける昇降路１の中央側の端部に対応した位置に設定する。その結果、強制減速部１２ｅは、第１プレート１０ａを使用してかご２の位置を監視する。 If the value of the braking distance when the car 2 is urgently stopped at the inspection speed in step S1, the process proceeds to step S2. In 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. As a result, the forced deceleration unit 12e monitors the position of the car 2 using the first plate 10a.
　ステップＳ１でかご２が検査速度で緊急停止した際の制動距離の値が第１走行距離基準値以下でない場合は、ステップＳ３に進む。ステップＳ３では、調整部１２ｆは、かご２が検査速度で緊急停止した際の制動距離の値が第１走行距離基準値よりも大きくて第２走行距離基準値以下か否かを判定する。 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. In 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.
　ステップＳ３でかご２が検査速度で緊急停止した際の制動距離の値が第１走行距離基準値よりも大きくて第２走行距離基準値以下の場合は、ステップＳ４に進む。ステップＳ４では、調整部１２ｆは、かご２の緊急停止を開始する監視位置を第２プレート１０ｂにおける昇降路１の中央側の端部に対応した位置に設定する。その結果、強制減速部１２ｅは、第２プレート１０ｂを使用してかご２の位置を監視する。 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. In 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. As a result, the forced deceleration unit 12e monitors the position of the car 2 using the second plate 10b.
　ステップＳ３でかご２が検査速度で緊急停止した際の制動距離の値が第２走行距離基準値よりも大きい場合は、第２プレート１０ｂにおける昇降路１の中央側の端部に対応した位置においてかご２の緊急停止を開始しても、かご２の緩衝器６への衝突速度が許容速度よりも高くなるおそれがある。この場合は、ステップＳ５に進む。ステップＳ５では、調整部１２ｆは、かご２の位置によらず監視速度を緩衝器６への衝突に対する許容速度に設定する。この際、エレベータの運行を停止させてもよい。 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.
　以上で説明した実施の形態１によれば、調整部１２ｆは、かご２の緊急停止を開始する監視位置をかご２の制動距離に応じて調整する。このため、安全性を担保しつつ、利便性の低下を抑制することができる。 According to the first embodiment described above, 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.
　また、かご２の制動距離が前回の検知時よりも長くなった場合、かご２の最高速度の設定値は、変更されない。かご２の緊急停止を開始する監視位置は、前回の設定よりも昇降路１の終端部から遠い位置に設定される。昇降路１の終端部におけるかご２の加減速度の設定値は、前回の設定値よりも小さくなる。このため、かご２は、最高速度で走行できる。その結果、かご２の走行時間の増大を抑制することができる。 Also, when the braking distance of the car 2 becomes longer than the previous detection time, 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.
　また、かご２の制動距離が前回の検知時よりも短くなった場合、かご２の最高速度の設定値は変更されない。かご２の緊急停止を開始する監視位置は、前回の設定よりも昇降路１の終端部から近い位置に設定される。昇降路１の終端部におけるかご２の加減速度の設定値は、前回の設定値よりも大きくなる。このため、かご２の走行時間の短縮を図ることができる。 Also, when the braking distance of the car 2 becomes shorter than the previous detection time, 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.
　また、第１走行距離基準値と第２走行距離基準値とを利用すれば、任意の時点においてかご２の緊急停止を開始する監視位置を設定できる。このため、ブレーキ装置７の制動トルクの減少が疑われる際にかご２の緊急停止を開始する監視位置を適切に設定できる。 Also, if the first mileage reference value and the second mileage reference value are used, 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.
　また、ブレーキ装置７の制動トルクの検査は、予め設定された時間間隔で行われる。このため、通常運行時にかご２の緊急停止が発生しない場合でもブレーキ装置７の制動トルクの減少を検知することができる。 Further, 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.
　なお、強制減速部１２ｅ等は、マイクロコンピュータでなくてもよい。例えば、昇降路１の終端部の検知、かご２の速度が監視速度を超えたことの検知、ブレーキ装置７の動作の制御までを複数のリレーで制御してもよい。この場合も、安全性を担保しつつ、利便性の低下を抑制することができる。 In addition, the forced deceleration part 12e etc. may not be a microcomputer. For example, 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.
　また、強制減速部１２ｅに調整部１２ｆを含めてもよい。この場合も、安全性を担保しつつ、利便性の低下を抑制することができる。 Further, 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.
　また、昇降路１の内部の機器配置の都合で、第１プレート１０ａまたは第２プレート１０ｂを予め設定された位置に離散的に配置する場合は、第１プレート１０ａと第２プレート１０ｂとに関し、速度検知部１２ｂと走行距離検知部１２ｃとの情報も用いてかご２が予め設定された位置から緩衝器６の間に配置されていることを検知すればよい。この場合も、安全性を担保しつつ、利便性の低下を抑制することができる。 Further, when the 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 | basket | car 2 is arrange | positioned between the buffer 6 from the position set beforehand also using the information of the speed detection part 12b and the travel distance detection part 12c. Also in this case, it is possible to suppress a decrease in convenience while ensuring safety.
　また、第１プレート１０ａに代えて、昇降路１にカムレールを設けてもよい。この場合、かご２にスイッチを設ければよい。当該スイッチは、昇降路１の終端部においてカムレールに押されることによりカムレールを連続的に検出する。この場合も、調整部１２ｆは、かご２の緊急停止を開始する監視位置をかご２の制動距離に応じて調整する。このため、安全性を担保しつつ、利便性の低下を抑制することができる。 Further, a cam rail may be provided in the hoistway 1 instead of the first plate 10a. In this case, 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.
実施の形態２．
　図６はこの発明の実態の形態２におけるエレベータの制御システムが適用されるエレベータの概要図である。なお、実施の形態１と同一又は相当部分には同一符号が付される。当該部分の説明は省略される。 Embodiment 2. 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. In addition, the same code | symbol is attached | subjected to the same part as Embodiment 1, or an equivalent part. The description of this part is omitted.
　図６において、第３プレート１０ｃは、昇降路１の下部に設けられる。 In FIG. 6, the third plate 10 c is provided in the lower part of the hoistway 1.
　制御システム１２は、位置検知部１２ｇも備える。位置検知部１２ｇの入力部は、回転数検知器９の出力部と位置検知器１１の出力部とに接続される。位置検知部１２ｇの出力部は、強制減速部１２ｅの入力部に接続される。例えば、位置検知部１２ｇは、第３プレート１０ｃの設置位置の情報を予め記憶する。例えば、位置検知部１２ｇは、第３プレート１０ｃの設置位置を学習により記憶する。位置検知部１２ｇは、位置検知器１１が第３プレート１０ｃを検知した際にかご２の位置の認識を記憶された第３プレート１０ｃの設定位置に補正する。 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. For example, the position detector 12g stores in advance information on the installation position of the third plate 10c. For example, 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.
　記憶部１２ａは、第３走行距離基準値と第４走行距離基準値とを記憶する。第３走行距離基準値と第４走行距離基準値とは、かご２の制動距離の値である。具体的には、第３走行距離基準値と第４走行距離基準値とは、かご２が検査速度で緊急停止を開始した際にかご２が停止するまでの走行距離の値である。 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. Specifically, 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.
　第３走行距離基準値は、かご２が第３監視速度で昇降路１の終端側へ緊急停止を開始した際に、かご２の前記緩衝器６への衝突速度が許容速度以下となるブレーキ装置７の状態に対応した値である。第４走行距離基準値は、かご２が第３監視速度よりも低い第４監視速度で昇降路１の終端側へ緊急停止を開始した際に、かご２の緩衝器６への衝突速度が許容速度以下となるブレーキ装置７の状態に対応した値である。 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.
　制御システム１２においては、検査モードが設定される。当該検査モードは、予め設定された時間間隔で実行される。 In the control system 12, an inspection mode is set. The inspection mode is executed at a preset time interval.
　温度、湿度、酸化、さび状態等が要因となってブレーキ装置７の制動トルクが減少した場合、かご２が検査速度で緊急停止を開始した際の制動距離の値は、第３走行距離基準値よりも大きくて第４走行距離基準値以下となる。この場合、調整部１２ｆは、かご２の緊急停止を開始する際の監視速度を第３監視速度から第４監視速度に切り替える。この際、調整部１２ｆは、かご２の最高速度を変更せず、昇降路１の終端部におけるかご２の加減速度の設定値を小さくするように、制御部１２ｄに指令を送信する。 When the braking torque of the brake device 7 decreases due to factors such as temperature, humidity, oxidation, and rust, 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. In this case, 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.
　ブレーキ装置７の修理、交換等によりブレーキ装置７の制動トルクが増加した場合、かご２が検査速度で緊急停止を開始した際の制動距離の値が第３走行距離基準値以下となる。この場合、調整部１２ｆは、かご２の緊急停止を開始する際の監視速度を第４監視速度から第３監視速度に切り替える。この際、調整部１２ｆは、かご２の最高速度を変更せず、昇降路１の終端部におけるかご２の加減速度の設定値を大きくするように、制御部１２ｄに指令を送信する。 When the braking torque of the brake device 7 is increased by repairing or replacing the brake device 7, the value of the braking distance when the car 2 starts an emergency stop at the inspection speed becomes equal to or less than the third travel distance reference value. In this case, 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.
　次に、図７を用いて、かご２の緊急停止を開始する際の監視速度の設定方法を説明する。
　図７はこの発明の実施の形態２におけるエレベータの制御システムによるかごの緊急停止を開始する際の監視速度の設定方法を説明するための図である。図７の横軸はかご２の速度および監視速度である。図７の縦軸はかご２の位置である。図７において、かご２の速度は細線で表される。かご２の監視速度は、太線で表される。 Next, a method for setting the monitoring speed when the emergency stop of the car 2 is started will be described with reference to FIG.
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. In FIG. 7, 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.
　かご２の制動距離の値が第３走行距離基準値よりも大きくて第４走行距離基準値以下の場合、調整部１２ｆは、かご２の緊急停止を開始する際の監視速度を第４監視速度に設定する。その結果、かご２の緊急停止を開始する際の監視速度の値は、図７に示す通りに太実線で示した値から太点線で示した値に変更される。 When the value of the braking distance of the car 2 is larger than the third traveling distance reference value and equal to or smaller than the fourth traveling distance reference value, 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. As a result, 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.
　この際、調整部１２ｆは、かご２の最高速度の設定値を変更せずに、昇降路１の終端部におけるかご２の加減速度の設定値を小さくするように、制御部１２ｄに指令を送信する。その結果、図７に示す通り、かご２の速度の値は、第４監視速度の値よりも小さくなる。 At this time, 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.
　かご２の制動距離の値が第３走行距離基準値よりも大きくて第４走行距離基準値以下の場合、かご２は、第４監視速度以下で緊急停止を開始する。その結果、かご２の緩衝器６への衝突速度は、許容速度以下となる。 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.
　かご２の制動距離の値が第３走行距離基準値以下の場合、調整部１２ｆは、かご２の緊急停止を開始する際の監視速度を第３速度に設定する。その結果、かご２の緊急停止を開始する際の監視速度の値は、図７に示す通りに太点線で示した値から太実線で示した値に変更される。 When the value of the braking distance of the car 2 is equal to or less than the third mileage reference value, the adjustment unit 12f sets the monitoring speed when the car 2 starts an emergency stop to the third speed. As a result, 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.
　この際、調整部１２ｆは、かご２の最高速度の設定値を変更せずに、昇降路１の終端部におけるかご２の加減速度の設定値を大きくするように、制御部１２ｄに指令を送信する。その結果、図７に示す通り、かご２の速度の値は、第３監視速度の値よりも小さくなる。 At this time, 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.
　かご２の制動距離の値が第３走行距離基準値以下の場合、かご２は、第３監視速度以下で緊急停止を開始する。その結果、かご２の緩衝器６への衝突速度は、許容速度以下となる。 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.
　次に、図８を用いて、調整部１２ｆの動作を説明する。
　図８はこの発明の実施の形態２におけるエレベータの制御システムの調整部の動作を説明するための図である。 Next, the operation of the adjustment unit 12f will be described with reference to FIG.
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.
　ステップＳ１１では、調整部１２ｆは、かご２が検査速度で緊急停止した際の制動距離の値が第３走行距離基準値以下か否かを判定する。 In 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.
　ステップＳ１１でかご２が検査速度で緊急停止した際の制動距離の値が第３走行距離基準値以下の場合は、ステップＳ１２に進む。ステップＳ１２では、調整部１２ｆは、かご２の緊急停止を開始する際の監視速度を第３監視速度に設定する。 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. In 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.
　ステップＳ１１でかご２が検査速度で緊急停止した際の制動距離の値が第３走行距離基準値以下でない場合は、ステップＳ１３に進む。ステップＳ１３では、調整部１２ｆは、かご２が検査速度で緊急停止した際の制動距離の値が第３走行距離基準値よりも大きくて第４走行距離基準値以下か否かを判定する。 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. In 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.
　ステップＳ１３でかご２が検査速度で緊急停止した際の制動距離の値が第３走行距離基準値よりも大きくて第４走行距離基準値以下の場合は、ステップＳ１４に進む。ステップＳ１４では、調整部１２ｆは、かご２の緊急停止を開始する際の監視速度を第４監視速度に設定する。 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. In 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.
　ステップＳ１３でかご２が検査速度で緊急停止した際の制動距離の値が第４走行距離基準値よりも大きい場合は、かご２の速度が第４監視速度の際にかご２の緊急停止を開始しても、かご２の緩衝器６への衝突速度が許容速度よりも高くなるおそれがある。この場合は、ステップＳ１５に進む。ステップＳ１５では、調整部１２ｆは、かご２の位置によらずかご２の監視速度をかご２の緩衝器６への衝突に対する許容速度に設定する。この際、エレベータの運行を停止させてもよい。 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. In 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.
　以上で説明した実施の形態２によれば、調整部１２ｆは、かご２の緊急停止を開始する際の監視速度をかご２の制動距離に応じて調整する。このため、安全性を担保しつつ、利便性の低下を抑制することができる。 According to the second embodiment described above, 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.
　また、かご２の制動距離が前回の検知時よりも長くなった場合、かご２の最高速度の設定値は、変更されない。昇降路１の終端部におけるかご２を緊急停止させる際の監視速度の設定値は、前回の設定値よりも小さくなる。かご２の加減速度の設定値は、前回の設定値よりも小さくなる。このため、かご２は、最高速度で走行できる。その結果、かご２の走行時間の増大を抑制することができる。 Also, when the braking distance of the car 2 becomes longer than the previous detection time, 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.
　また、かご２の制動距離が前回の検知時よりも短くなった場合、かご２の最高速度の設定値は、変更されない。昇降路１の終端部におけるかご２を緊急停止させる際の監視速度の設定値は、前回の設定値よりも大きくなる。かご２の加減速度の設定値は、前回の設定値よりも大きくなる。このため、かご２の走行時間の短縮を図ることができる。 Also, when the braking distance of the car 2 becomes shorter than the previous detection time, 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.
　また、第３走行距離基準値と第４走行距離基準値とを利用すれば、任意の時点においてかご２の緊急停止を開始する際の監視速度を設定できる。このため、ブレーキ装置７の制動トルクの減少が疑われる際にかご２の緊急停止を開始する監視位置を適切に設定できる。 Further, if the third mileage reference value and the fourth mileage reference value are used, 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.
　また、ブレーキ装置７の制動トルクの検査は、予め設定された時間間隔で行われる。このため、通常運行時にかご２の緊急停止が発生しない場合でもブレーキ装置７の制動トルクの減少を検知することができる。 Further, 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.
　なお、実施の形態１および実施の形態２において、ブレーキ装置７の制動トルクの減少を温度センサまたは湿度センサの計測結果から推定してもよい。この場合、制動トルクの検査を予め設定された時間間隔で行わなくても、安全性を担保することができる。例えば、湿度の値が予め設定された値を超えた場合に監視速度を高くすれば、安全性を担保しつつ、利便性の低下を抑制することができる。 In the first and second embodiments, 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.
　以上のように、この発明に係るエレベータの制御システムは、安全性を担保しつつ、利便性の低下を抑制するシステムに利用できる。 As described above, the elevator control system according to the present invention can be used for a system that suppresses a decrease in convenience while ensuring safety.
　１　昇降路、　２　かご、　３　釣合おもり、　４　巻上機、　５　ロープ、　６　緩衝器、　７　ブレーキ装置、　８　調速機、　８ａ　シーブ、　８ｂ　ロープ、　９　回転数検知器、　１０ａ　第１プレート、　１０ｂ　第２プレート、　１０ｃ　第３プレート、　１１　位置検知器、　１２　制御システム、　１２ａ　記憶部、　１２ｂ　速度検知部、　１２ｃ　走行距離検知部、　１２ｄ　制御部、　１２ｅ　強制減速部、　１２ｆ　調整部、　１２ｇ　位置検知部、　１３ａ　第１処理回路、　１３ｂ　第２処理回路、　１３ｃ　第３処理回路、　１４ａ　第１プロセッサ、　１４ｂ　第２プロセッサ、　１４ｃ　第３プロセッサ、　１５ａ　第１メモリ、　１５ｂ　第２メモリ、　１５ｃ　第３メモリ 1 hoistway, 2 cages, 3 counterweights, 4 hoisting machines, 5 ropes, 6 shock absorbers, 7 brake devices, 8 speed governors, 8a sheaves, 8b ropes, 9 revolution detectors, 10a first plate, 10b 2nd plate, 10c 3rd plate, 11 position detector, 12 control system, 12a storage unit, 12b speed detection unit, 12c mileage detection unit, 12d control unit, 12e forced deceleration unit, 12f adjustment unit, 12g position detection Part, 13a first processing circuit, 13b second processing circuit, 13c third processing circuit, 14a first processor, 14b second processor, 14c third processor, 15a first memory, 15b second memory, 15c third memory

Claims (9)

  1. 　昇降路の内部に設けられたかごと前記かごを駆動する巻上機と前記巻上機を制動するブレーキ装置と前記昇降路の終端部に設けられた緩衝器とを備えたエレベータにおいて、前記ブレーキ装置により前記巻上機を制動した際に前記かごが停止するまでの走行距離を検知する走行距離検知部と、
    　前記かごを緊急停止させた際に前記かごの前記緩衝器への衝突速度が許容速度となるように前記エレベータの運行時における前記かごの緊急停止を開始する監視位置または前記かごの緊急停止を開始する際の監視速度を前記走行距離検知部により検知された前記かごが停止するまでの走行距離に応じて調整する調整部と、
    を備えたエレベータの制御システム。     An elevator comprising a hoisting machine for driving the car, a brake device for braking the hoisting machine, and a shock absorber provided at a terminal portion of the hoistway, the car being provided inside the hoistway. A travel distance detection unit that detects a travel distance until the car stops when the hoisting machine is braked by
    The monitoring position for starting the emergency stop of the car during the operation of the elevator or the emergency stop of the car is started so that the collision speed of the car to the shock absorber becomes an allowable speed when the car is emergency stopped An adjustment unit that adjusts the monitoring speed when the vehicle is detected according to the travel distance until the car is detected detected by the travel distance detection unit;
    Elevator control system with
  2. 　前記調整部は、前記走行距離検知部により検知された前記かごが停止するまでの走行距離が前回の検知時よりも長くなった場合に、前記かごの最高速度の設定値を変更せず、前記かごの緊急停止を開始する監視位置を前回の設定よりも前記昇降路の終端部から遠い位置に設定し、前記昇降路の終端部における前記かごの加減速度の設定値を前回の設定値よりも小さくする請求項１に記載のエレベータの制御システム。 The adjustment unit does not change the set value of the maximum speed of the car when the travel distance detected by the travel distance detection unit is longer than the previous detection time until the car stops. The monitoring position for starting the emergency stop of the car is set at a position farther from the end of the hoistway than the previous setting, and the set value of the acceleration / deceleration of the car at the end of the hoistway is set more than the previous set value. The elevator control system according to claim 1, wherein the control system is small.
  3. 　前記調整部は、前記走行距離検知部により検知された前記かごが停止するまでの走行距離が前回の検知時よりも短くなった場合に、前記かごの最高速度の設定値を変更せず、前記かごの緊急停止を開始する監視位置を前回の設定よりも前記昇降路の終端部に近い位置に設定し、前記昇降路の終端部における前記かごの加減速度の設定値を前回の設定時よりも大きくする請求項２に記載のエレベータの制御システム。 The adjustment unit does not change the set value of the maximum speed of the car when the travel distance detected by the travel distance detection unit is shorter than the previous detection time until the car stops. The monitoring position for starting the emergency stop of the car is set closer to the terminal end of the hoistway than the previous setting, and the set value of the acceleration / deceleration of the car at the terminal end of the hoistway is set compared to the previous setting. The elevator control system according to claim 2, wherein the elevator control system is enlarged.
  4. 　前記昇降路の終端側における第１位置において前記かごが第１監視速度よりも高い第２監視速度以下で前記昇降路の終端側へ緊急停止を開始した際に、前記かごの前記緩衝器への衝突速度が許容速度以下となる前記ブレーキ装置の状態で、前記かごが検査速度で緊急停止を開始した際に前記かごが停止するまでの走行距離の値を第１走行距離基準値として記憶し、前記第１位置よりも前記昇降路の終端から離れた第２位置において前記かごが前記第２監視速度で前記昇降路の終端側へ緊急停止を開始した際に、前記かごの前記緩衝器への衝突速度が許容速度以下となる前記ブレーキ装置の状態で、前記かごが前記検査速度で緊急停止を開始した際に前記かごが停止するまでの走行距離の値を第２走行距離基準値として記憶した記憶部、
    を備え、
    　前記調整部は、前記かごが前記検査速度で緊急停止を開始した際に前記かごが停止するまでの走行距離の値が前記第１走行距離基準値以下の場合は、前記かごの緊急停止を開始する監視位置を第１位置とし、前記かごが前記検査速度で緊急停止を開始した際に前記かごが停止するまでの走行距離の値が前記第１走行距離基準値よりも大きくて前記第２走行距離基準値以下の場合は、前記かごの緊急停止を開始する監視位置を第２位置とする請求項２または請求項３に記載のエレベータの制御システム。     When the car starts an emergency stop to the terminal side of the hoistway at a first position on the terminal side of the hoistway at a second monitoring speed higher than the first monitoring speed, In the state of the brake device in which the collision speed is equal to or lower than the allowable speed, a value of a travel distance until the car stops when the car starts an emergency stop at an inspection speed is stored as a first travel distance reference value; When the car starts an emergency stop toward the end of the hoistway at the second monitoring speed at a second position farther from the end of the hoistway than the first position, The value of the travel distance until the car stops when the car starts an emergency stop at the inspection speed in the state of the brake device where the collision speed is equal to or lower than the allowable speed is stored as the second travel distance reference value. Storage unit,
    With
    The adjustment unit starts an emergency stop of the car when a value of a travel distance until the car stops when the car starts an emergency stop at the inspection speed is equal to or less than the first travel distance reference value. The monitoring position to be operated is a first position, and when the car starts an emergency stop at the inspection speed, a value of a travel distance until the car stops is larger than the first travel distance reference value and the second travel 4. The elevator control system according to claim 2, wherein when the distance is equal to or less than the reference distance, the monitoring position at which the car is started to be urgently stopped is the second position.
  5. 　前記調整部は、前記走行距離検知部により検知された前記かごが停止するまでの走行距離が前回の検知時よりも長くなった場合に、前記かごの最高速度の設定値を変更せず、前記昇降路の終端部における前記かごを緊急停止させる際の監視速度の設定値を前回の設定値よりも小さくし、前記かごの加減速度の設定値を前回の設定値よりも小さくする請求項１に記載のエレベータの制御システム。 The adjustment unit does not change the set value of the maximum speed of the car when the travel distance detected by the travel distance detection unit is longer than the previous detection time until the car stops. The monitoring speed setting value for emergency stop of the car at the end of the hoistway is made smaller than the previous setting value, and the setting value of the acceleration / deceleration speed of the car is made smaller than the previous setting value. The elevator control system described.
  6. 　前記調整部は、前記走行距離検知部により検知された前記かごが停止するまでの走行距離が前回の検知時よりも短くなった場合に、前記かごの最高速度の設定値を変更せず、前記昇降路の終端部における前記かごの監視速度の設定値を前回の設定値よりも大きくし、前記かごの加減速度の設定値を前回の設定値よりも大きくする請求項５に記載のエレベータの制御システム。 The adjustment unit does not change the set value of the maximum speed of the car when the travel distance detected by the travel distance detection unit is shorter than the previous detection time until the car stops. The elevator control according to claim 5, wherein a set value of the monitoring speed of the car at a terminal portion of the hoistway is made larger than a previous set value, and a set value of the acceleration / deceleration of the car is made larger than a previous set value. system.
  7. 　前記かごが第３監視速度で前記昇降路の終端側へ緊急停止を開始した際に、前記かごの前記緩衝器への衝突速度が許容速度以下となる前記ブレーキ装置の状態で、前記かごが検査速度で緊急停止を開始した際に前記かごが停止するまでの走行距離を第３走行距離基準値として記憶し、前記かごが第３監視速度よりも低い第４監視速度で前記昇降路の終端側へ緊急停止を開始した際に、前記かごの前記緩衝器への衝突速度が許容速度以下となる前記ブレーキ装置の状態で、前記かごが前記検査速度で緊急停止を開始した際に前記かごが停止するまでの走行距離を第４走行距離基準値として記憶した記憶部、
    を備え、
    　前記調整部は、前記かごが前記検査速度で緊急停止を開始した際に前記かごが停止するまでの走行距離の値が前記第３走行距離基準値以下の場合は、前記かごの緊急停止を開始する際の監視速度を第３監視速度とし、前記かごが前記検査速度で緊急停止を開始した際に前記かごが停止するまでの走行距離の値が前記第３走行距離基準値よりも大きくて前記第４走行距離基準値以下の場合は、前記かごの緊急停止を開始する際の監視速度を第４監視速度とする請求項５または請求項６に記載のエレベータの制御システム。     When the car starts an emergency stop toward the end of the hoistway at a third monitoring speed, the car is inspected in a state of the brake device in which the collision speed of the car with the shock absorber is equal to or lower than an allowable speed. When the emergency stop is started at a speed, a travel distance until the car stops is stored as a third travel distance reference value, and the car is at the end of the hoistway at a fourth monitoring speed lower than the third monitoring speed. When an emergency stop is started, the car stops when the car starts an emergency stop at the inspection speed in a state of the brake device in which the collision speed of the car with the shock absorber is lower than an allowable speed. A storage unit that stores a travel distance until a fourth travel distance reference value;
    With
    The adjustment unit starts an emergency stop of the car when a value of a travel distance until the car stops when the car starts an emergency stop at the inspection speed is equal to or less than the third travel distance reference value. The monitoring speed at the time of carrying out is set as the third monitoring speed, and when the car starts an emergency stop at the inspection speed, the value of the travel distance until the car stops is larger than the third travel distance reference value and The elevator control system according to claim 5 or 6, wherein a monitoring speed at the time of starting an emergency stop of the car is set to a fourth monitoring speed when it is equal to or less than a fourth mileage reference value.
  8. 　前記調整部は、前記かごの緊急停止を開始する監視位置または前記かごの緊急停止を開始する際の監視速度を予め設定された時間間隔で調整する請求項１から請求項７のいずれか一項に記載のエレベータの制御システム。 The said adjustment part adjusts the monitoring speed | rate when starting the emergency stop of the said car or the emergency stop of the said car at the preset time interval. The elevator control system described in 1.
  9. 　前記調整部は、温度センサまたは湿度センサの計測結果に基づいて前記ブレーキ装置の制動トルクの減少を推定する請求項１から請求項８のいずれか一項に記載のエレベータの制御システム。 The elevator control system according to any one of claims 1 to 8, wherein the adjustment unit estimates a decrease in braking torque of the brake device based on a measurement result of a temperature sensor or a humidity sensor.
PCT/JP2015/059948 2015-03-30 2015-03-30 Control system for elevators WO2016157369A1 (en)

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