JP5078250B2 - Elevator apparatus and control method thereof - Google Patents

Description

  The present invention relates to an elevator apparatus that controls the operation of an elevator car during an earthquake to make it less susceptible to damage and a control method therefor.

  A conventional elevator operation device for an earthquake includes, for example, a sensor that detects the occurrence of an earthquake as disclosed in Patent Document 1, and when an earthquake occurs, the car is stopped at the nearest floor to ensure passenger safety. Proposals have been made to control earthquakes and display earthquake information.

Japanese Patent Laid-Open No. 2-130883 (pages 2 and 3, FIG. 1)

However, in the conventional elevator operation device for an earthquake in Patent Document 1, the operation is controlled during an earthquake when it is shaken even a little, and the elevator stops, so that it takes time for the recovery operation. There was a problem.
Also, recent earthquake damage surveys have shown that seismic intensity levels are less than 5 levels, and the earthquake detector set value was raised because it was proved that the damage was extremely low. If it is not an earthquake, it will be controlled to 1 or 0 without stopping the car, so in the case of an earthquake with a small amplitude but a large amplitude, such as a long-period earthquake, control operation during the earthquake There was a problem that the elevator equipment could be damaged if the building shakes greatly without performing the above.

Further, in Patent Document 1, when an earthquake occurs and the seismic detector is operated, the car is stopped at the nearest floor to make the passengers safer, and the earthquake control operation is performed to prevent the equipment from being damaged. It is like that.
However, considering the situation where a large number of elevators are stopped all at once due to the control operation during an earthquake, it is assumed that it takes a considerable amount of time to return the vehicle on the premise of inspection by an elevator engineer.
Especially in nursing homes and hospitals, if the elevators stop all at once, there is no way to evacuate, and if a fire occurs after an earthquake, there is a possibility that a delay will occur.
Therefore, it is conceivable to increase the seismic strength of the elevator so as not to stop the car as much as possible, but it is too expensive and not economical.

The present invention has been made to solve the above-described problems. In the event of an earthquake, the car is operated in accordance with the magnitude of the earthquake to increase the safety during the earthquake, and the recovery operation time. It is a first object to obtain an elevator apparatus and a control method therefor that shorten the length.
Further, by changing the seismic strength for each elevator, selecting a car to stop operation according to the magnitude of the earthquake, operating a small number of cars, and obtaining an elevator apparatus and its control method that enable occupants to evacuate This is the second purpose.

In the elevator apparatus according to the present invention, the earthquake detecting means for detecting the magnitude of the earthquake when the earthquake occurs, and the control means for controlling the operation of the elevator car according to the magnitude of the earthquake detected by the earthquake detecting means. The control means automatically stops the car at the nearest floor for a predetermined time when a P wave of a predetermined value or more is detected by the earthquake detection means, and no S wave is detected during that time. When a P wave operation command for returning to normal operation is output and an S wave is detected within a predetermined time, the car is moved within a maximum speed that decreases according to the magnitude of the S wave fluctuation after the predetermined time has elapsed. The maximum speed command for operating the car is output, and when the detected S-wave fluctuation is greater than or equal to the first value, the operation range limit command for operating the car is output within the floor range where the car and weight are not misplaced. Detected S wave fluctuation When is above the first value is greater than the second value, after stopping the car to the nearest floor, and outputs the S-wave operation command to pause the elevator, and controls the operation of the car.

As described above, the present invention provides an earthquake detection means for detecting the magnitude of an earthquake when an earthquake occurs, and a control for controlling the operation of an elevator car according to the magnitude of the earthquake detected by the earthquake detection means. The control means automatically stops when the seismic detecting means detects a P wave of a predetermined value or more and stops the car at the nearest floor for a predetermined time, and no S wave is detected during that time. When a P wave operation command for returning to normal operation is output and an S wave is detected within a predetermined time, within a maximum speed that decreases according to the magnitude of the S wave fluctuation after the predetermined time has elapsed, Outputs the maximum speed command to operate the car, and when the detected S wave fluctuation is greater than or equal to the first value , outputs the operation range restriction command to operate the car in the floor range where the car and weight are not misplaced The detected S wave is the first When the above is greater than the second value, after stopping the car to the nearest floor, and outputs the S-wave operation command to pause the elevator, and controls the operation of the car, the car which corresponds to the magnitude of an earthquake By performing the operation, the recovery operation time can be shortened, and the safety in the case of an earthquake with a large amplitude even though the acceleration is small, such as a long-period earthquake, can be improved.

Embodiment 1 FIG.
The first embodiment will be described below with reference to the drawings.
1 is a block diagram showing an elevator operation apparatus for an earthquake according to Embodiment 1 of the present invention.
In FIG. 1, a machine room acceleration sensor 1 is installed in a machine room located at the upper part of an elevator hoistway, and measures vertical, horizontal, and longitudinal vibrations. The intermediate part acceleration sensor 2 is installed in the intermediate part of the hoistway, and measures the vertical, horizontal, and longitudinal vibrations. When the lateral or back-and-forth vibration of any one of the machine room acceleration sensor 1 and the intermediate part acceleration sensor 2 exceeds a predetermined value (for example, 150 gal), an S-wave (transverse wave) control operation is performed. The pit acceleration sensor 3 is installed in a pit below the hoistway and measures vertical, horizontal, and longitudinal vibrations. When the vertical vibration of the pit acceleration sensor 3 exceeds a predetermined value (for example, 10 gal), a P wave (Longitudinal wave) Control operation is performed. The machine room acceleration sensor 1, the intermediate part acceleration sensor 2, and the pit acceleration sensor 3 constitute an earthquake detection means that detects the magnitude of the earthquake together with the detection of the occurrence of the earthquake.
The speed change release switch 4 (release switch) outputs a release signal for returning the maximum speed to the rated speed by the operation of the maintenance staff when the maintenance staff confirms that there is no abnormality. To release the maximum speed to the rated speed, that is, to return to normal operation, (1) If the magnitude of the detected earthquake is less than the predetermined value (90 gal), the remote release from the remote location is performed, and (2) the detected earthquake If the size of the motor is greater than or equal to a predetermined value (90 gal), the speed change release switch 4 is used to cancel the operation after confirming that there is no abnormality by the maintenance personnel.

Each signal from the machine room acceleration sensor 1, the intermediate part acceleration sensor 2, the pit acceleration sensor 3, and the speed change release switch 4 is input to the control means 9, and the control means 9 responds to the acceleration of the earthquake based on these inputs. In order to control the operation of the elevator car, the maximum speed command 5, the operation range restriction command 6, the P wave operation command 7, and the S wave operation command 8 are used as the elevators for controlling the operation of the actual elevator car. Output to a control device (not shown).
The maximum speed command 5 is a command for outputting the maximum speed selected according to the magnitude of shaking detected by the machine room acceleration sensor 1, the intermediate part acceleration sensor 2, and the pit acceleration sensor 3, and operating the car within the maximum speed. is there. The driving range restriction command 6 is a command for performing a car service corresponding to a car call and a landing call within a floor range where the car and the weight are not missed (see FIG. 4 described later).
The P-wave operation command 7 is a command for stopping the car at the nearest floor for a predetermined time (for example, 1 minute) and automatically returning to normal operation if no S wave is detected during that time. The S wave operation command 8 is a command to stop the elevator after stopping the car at the nearest floor.

FIG. 2 is a block diagram showing a hardware configuration of the elevator operation device for an earthquake according to Embodiment 1 of the present invention.
2, 1 to 8 are the same as those in FIG. A microcomputer 10 having an input circuit 10a, a CPU 10b, a memory 10c, and an output circuit 10d constitutes the control means 9 of FIG. Each signal from the machine room acceleration sensor 1, the intermediate part acceleration sensor 2, the pit acceleration sensor 3, and the speed change release switch 4 is input to the input circuit 10a, and the CPU 10b controls the car operation according to the acceleration of the earthquake. Accordingly, the maximum speed command 5, the operation range restriction command 6, the P wave operation command 7, and the S wave operation command 8 are output from the output circuit 10d to the elevator control device.
FIG. 3 is a flowchart showing the operation of the elevator operation apparatus for an earthquake according to Embodiment 1 of the present invention.

FIG. 4 is an explanatory diagram for explaining the positional relationship between the car and the weight of the elevator apparatus according to Embodiment 1 of the present invention.
Fig. 4 is a diagram showing the positional relationship between the car and the weights of the elevator apparatus moving on the first to sixth floors. Fig. 4 (a) shows how the car and weights pass between the third and fourth floors. 4 (b) shows the positional relationship between the car and the weight when the car is serviced on the first to third floors, and FIG. 4 (c) is the car when the car is serviced on the fourth to sixth floors. The positional relationship of the weights is shown. In the service corresponding to the car call and the landing call within the range in which the car and the weight are not mistaken according to the driving range restriction command 6, the car is placed on the first to third floors as shown in FIG. As shown in c), service the car on the 4th-6th floor.

Next, the operation will be described.
The control means 9 of the elevator operating device during an earthquake is detected by the earthquake detection means based on the occurrence of an earthquake detected by the earthquake detection means comprising the machine room acceleration sensor 1, the intermediate acceleration sensor 2, and the pit acceleration sensor 3. According to the magnitude of the earthquake, commands 5 to 8 for controlling the operation of the elevator car are output to the elevator control device, and the elevator control device controls the operation of the actual elevator car based on this command.

Next, based on FIG. 3, the process of the control means of the elevator operation apparatus at the time of an earthquake is demonstrated.
In step S1, when an earthquake occurs and the pit acceleration sensor 3 senses a vertical shake greater than a predetermined value (for example, 10 gal), the process proceeds to step S2, and the car is stopped at the nearest floor by the P-wave operation command 7. Perform P wave control operation. Next, it progresses to step S3, and when predetermined time (for example, 1 minute) passes, it will progress to step S4. In step S4, if the lateral or longitudinal acceleration sensed by the machine room acceleration sensor 1 or the intermediate part acceleration sensor 2 is less than 30 gal, for example, the process proceeds to step S5, and only while the car and the weight pass each other (the weight of the car is increased). The maximum speed is reduced to 90% by the maximum speed command 5 because of a reduction in impact at the time of collision.
Also, in step S5, when the car is moving in the vicinity of the upper floor during the ascending operation, or when the car is moving in the vicinity of the lower floor during the descending operation (to suppress overrunning due to an abnormal safety device at the end). Similarly, the maximum speed is reduced to 90%.
The vicinity of the upper floor or the vicinity of the lower floor in step S5 is a floor corresponding to the deceleration distance at the rated speed. For example, when the rated speed is 240 m / min, the deceleration distance is about 12 m, so the floor height is 4 m. If so, it is about the third floor. In step S5, the maximum speed is decelerated, so that the distance required for normal deceleration is caused to travel at a low speed, thereby further enhancing safety.

Next, the process proceeds to step S6. The control means 9 has a counter that counts up from the detection of the earthquake and outputs a release signal when a predetermined time elapses. When a predetermined time (for example, 10 minutes) elapses after the earthquake is detected, the control signal is output from the counter. In step S18, the normal speed is restored by the maximum speed command 5 with the maximum speed as the rated speed.
If the lateral or longitudinal acceleration sensed by the machine room acceleration sensor 1 or the intermediate part acceleration sensor 2 in step S4 is, for example, 30 gal or more, the process proceeds to step S7, and if it is less than A (however, A> 30) gal. If so, the process proceeds to step S8, and the maximum speed is constantly reduced to 90%.
If the lateral or longitudinal acceleration is greater than or equal to Agal in step S7, the process proceeds to step S9, and if it is less than B (however, B> A) gal, the process proceeds to step S10 and the maximum speed is constantly reduced to 80%. .
Next, the process proceeds from steps S8 and S10 to S11. In the information center that monitors the elevator at a remote place, it is checked whether or not there is an abnormal state (for example, abnormal noise or vibration). If there is no abnormal state, remote release is performed, and the process proceeds to step S18. Return to speed.

If the lateral or longitudinal acceleration sensed by the machine room acceleration sensor 1 or the intermediate part acceleration sensor 2 is greater than or equal to Bgal in step S9, the process proceeds to step S12, and if less than C (where C> B) gal, In step S13, the maximum speed is constantly reduced to 70%. In step S12, if the lateral or longitudinal acceleration detected by the machine room acceleration sensor 1 or the intermediate acceleration sensor 2 is equal to or greater than Cgal (first value) , the process proceeds to step S14, where D (where D> C). If it is less than gal, the process further proceeds to step S15, where the maximum speed is constantly reduced to 60% and the car call and the landing call are served so that the car and the weight do not pass each other. This is a floor range in which the car and the weight are not missed by the operation range restriction command 6, for example, as shown in FIG. 4 (b), the car is in the 1st to 3rd floors, or in FIG. 4 (c). In the same way, let the car correspond to the car call and the hall call on the 4th-6th floor.

Next, the process proceeds from step S13, S15 to step S16. A maintenance staff visits the site to check if there are any abnormal conditions (for example, abnormal noise or vibration). If there is no abnormal condition, operate the speed change release switch 4 and output a release signal. Then, the process proceeds to step S18 to return to the normal speed.
If the lateral or longitudinal acceleration detected by the machine room acceleration sensor 1 or the intermediate part acceleration sensor 2 is greater than or equal to Dgal (second value) in step S14, the process proceeds to step S17, and the car is commanded by the S-wave operation command 8. Stop at the nearest floor and perform S wave control operation to stop.

  In the above description, the magnitude of the earthquake is determined using the acceleration sensed by each sensor. However, the magnitude of the earthquake may be calculated using the speed and displacement calculated from this acceleration. The operation of the car may be controlled according to the amount of displacement.

According to the first embodiment, since the operation of the elevator car is controlled by the speed corresponding to the magnitude of the earthquake acceleration, the car can be operated in accordance with the magnitude of the earthquake.
As a result, the recovery operation time can be shortened, and safety in the case of an earthquake with a small acceleration but a large amplitude such as a long-period earthquake can be enhanced.

Embodiment 2. FIG.
In the second embodiment, there is a difference in the seismic strength of each elevator unit, and when an earthquake occurs, the elevator of the higher seismic strength unit is operated according to the magnitude of the earthquake, and the person who is late in the event of a fire etc. It was made to hit for relief.
In order to prevent movement, overturning, detachment, etc. with respect to the design seismic force when there are elevators No. 1 and No. 2, Unit 1 can be designed with horizontal seismic force for design (seismic strength) = 2. For example, m · g (N) and Unit 2 enhance the seismic strength of Unit 1 more than Unit 2 by setting horizontal seismic force for design = 1 · m · g (N). Here, m = equipment mass (Kg) and g = gravitational acceleration (9.8 m / s ² ).
According to this design horizontal seismic force, the magnitude of earthquake that Unit 2 can tolerate is, for example, 150 gal, and the magnitude of earthquake that Unit 1 can tolerate is E (however, E> 150) gal. The unit can be operated up to the magnitude of the earthquake.

FIG. 5 is a block diagram showing an elevator operation apparatus for an earthquake according to Embodiment 2 of the present invention.
In FIG. 5, the S-wave earthquake detector 11 is installed in the elevator machine room, and detects and outputs the acceleration in the lateral direction of the earthquake. The P-wave earthquake sensor 12 is installed in the pit, and detects and outputs the vertical acceleration of the earthquake.
Unit 1 firefighting operation switch 13 is a switch for switching unit 1 to firefighting operation, which is a dedicated operation only for calling the car. Rescue and extinguish. This Unit 1 firefighting operation switch 13 switches to firefighting operation if it is turned on when it is necessary to rescue a person who has escaped even when no fire has occurred. When Unit 1 firefighting operation switch 13 is turned on, it becomes firefighting operation, which is a dedicated car call operation, and at the time of an earthquake, the speed is reduced (for example, if the rated speed is 150 m / min, it is reduced to 90 m / min). And drive the car.

Each signal from the S-wave earthquake sensor 11, the P-wave earthquake sensor 12, and the Unit 1 fire-fighting operation switch 13 is input to the control means 9, and the control means 9 is based on the input from these sensors. To determine the size and operate the car according to the magnitude of the earthquake, each command of Unit 1 stop command 14, Unit 2 stop command 15, Unit 1 firefighting operation lamp command 16 is used to control the actual car operation. Is output to an elevator control device (not shown).
Unit 1 stop command 14 stops Unit 1 at the nearest floor if the magnitude of the detected earthquake is greater than or equal to a predetermined value (10 gal), and if it is less than Egal after a predetermined time (for example, 1 minute), Resume. Unit 2 stop command 15 causes the Unit 2 to stop at the nearest floor when the magnitude of the detected earthquake is greater than or equal to a predetermined value (10 gal), and less than a predetermined value (for example, 150 gal) after a predetermined time (for example, 1 minute) In the case of, resume operation.
When the first unit fire fighting operation lamp command 16 is pressed, the first unit fire fighting operation light command 16 instructs the car and the landing to display that the first unit performs fire fighting operation.

FIG. 6 is a block diagram showing a hardware configuration of the elevator operation device for an earthquake according to Embodiment 2 of the present invention.
In FIG. 6, 11 to 16 are the same as those in FIG. The microcomputer 10 having the input circuit 10a, the CPU 10b, the memory 10c, and the output circuit 10d constitutes the control means 9 in FIG. Each signal from the S-wave earthquake detector 11, the P-wave earthquake detector 12, and the Unit 1 fire fighting operation switch 13 is input to the input circuit 10a, and the CPU 10b determines the magnitude of the earthquake based on these inputs. In order to operate the car according to the magnitude of the earthquake, each command of the first unit stop command 14, the second unit stop command 15, and the first unit fire fighting lamp command 16 is output from the output circuit 10d to the elevator control device.
In addition, the magnitude | size of the earthquake which can be accept | permitted is previously preserve | saved in the memory 10c (memory | storage part) according to the horizontal seismic force for a design of each unit, ie, seismic strength.
FIG. 7 is a flowchart showing the operation of the elevator operation apparatus for an earthquake according to Embodiment 2 of the present invention.

Next, the operation will be described.
The control means 9 discriminates the magnitude of the earthquake based on the input from the S-wave seismic detector 11, and according to the discriminated magnitude of the earthquake, the allowable earthquake magnitude of each unit stored in the memory 10c. Referring to Fig. 4, the earthquake control operation (P wave control operation, S wave control operation) by operation control determined in advance for each unit is performed.
In addition, when an earthquake occurs, the control means 9 notifies the outside (firefighters, etc.) to use the elevator (unit 1) having the largest allowable earthquake magnitude stored in the memory 10c for rescue. Based on this, the firefighter turns on the first machine fire fighting operation switch 13 and sets so that the first machine can be fire-fighted.

Next, the processing of the control means of the elevator operation device during an earthquake will be described with reference to FIG.
In step S21, when an earthquake occurs and a vertical shake of a predetermined value (for example, 10 gal) or more is detected by an input from the P-wave earthquake detector 12, the process proceeds from step S21 to step S22, and all the cars are moved to the nearest location. Perform P-wave control operation to stop at the floor. Next, it progresses to step S23, and when predetermined time (for example, 1 minute) passes, it will progress to step S24. Thereafter, the S wave control operation is performed according to the magnitude of the lateral acceleration.
In step S24, if the detected lateral acceleration is less than the magnitude of an earthquake that can be accepted by Unit 2 (for example, 150 gal) based on the input from the S-wave seismic detector 11, the process proceeds to step S25. In order to confirm the safety of the vehicle, a trial run that makes one round trip up and down at low speed is performed. If it is determined in step S26 that there is no abnormality in the image, sound, or vibration, the process proceeds to step S27, and both the first and second units are returned to normal operation. If there is an abnormality in step S26, the process proceeds to step S37, and both the first and second units are suspended by the S wave control operation.

If it is determined in step S24 that the detected lateral acceleration is equal to or greater than the magnitude of an earthquake that can be accepted by Unit 2 (for example, 150 gal) based on the input from the S-wave earthquake detector 11, the process proceeds to step S28. Unit 2 will be suspended due to controlled operation. Next, the process proceeds to step S29, and if the acceleration is less than the earthquake magnitude E that can be tolerated by Unit 1 (where E> 150) gal, the process proceeds to Step S30 to confirm the safety when Unit 1 is restarted. Therefore, a trial run that makes one round trip up and down at a low speed is performed. If it is determined in step S31 that there is no abnormality in the image, sound, and vibration, the process proceeds to step S32 and the first unit is returned to normal operation. If there is an abnormality in step S31, the process proceeds to step S36, the first machine is stopped, and the process is terminated.
If it is determined in step S29 that the detected lateral acceleration is equal to or greater than the Egal of the magnitude of the earthquake that can be accepted by the first unit based on the input from the S-wave earthquake detector 11, the process proceeds to step S33 and the first unit firefighting operation is performed. If the switch 13 is not ON, the process proceeds to step S36, and the first unit is stopped by the S wave control operation. If the No. 1 fire fighting operation switch 13 is ON in step S33, the process proceeds to step S34.
If it is determined in step S34 that the detected lateral acceleration is equal to or greater than F (where F> E) gal based on the input from the S-wave earthquake detector 11, the process proceeds to step S36. Shut down Unit No. If the acceleration is less than Fgal in step S34, the process proceeds to step S35, and the first car is set to fire-fighting operation (low-speed exclusive operation with only a car call).

  Note that the above-mentioned elevator operation device for earthquakes controls a plurality of elevators having a plurality of seismic strengths installed in one building and a plurality of seismic strengths installed in a plurality of buildings. In either case of controlling the elevator of the car, the operation of the car shall be controlled in the event of an earthquake.

  According to the second embodiment, a difference is made in the seismic strength of the elevator car, and the magnitude of the allowable earthquake is less than the allowable magnitude of the earthquake based on the seismic strength during the earthquake control operation. Since the car corresponding to the above is operated, it is possible to prevent the elevator cars from being stopped and the residents from evacuating according to the magnitude of the earthquake.

It is a block diagram which shows the operation apparatus at the time of the earthquake of the elevator by Embodiment 1 of this invention. It is a block diagram which shows the hardware constitutions of the operation apparatus at the time of the earthquake of the elevator by Embodiment 1 of this invention. It is a flowchart which shows operation | movement of the operation device at the time of the earthquake of the elevator by Embodiment 1 of this invention. It is explanatory drawing explaining the positional relationship of the cage weight of the elevator apparatus by Embodiment 1 of this invention. It is a block diagram which shows the operation apparatus at the time of the earthquake of the elevator by Embodiment 2 of this invention. It is a block diagram which shows the hardware constitutions of the operation apparatus at the time of the earthquake of the elevator by Embodiment 2 of this invention. It is a flowchart which shows operation | movement of the operation device at the time of the earthquake of the elevator by Embodiment 2 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Machine room acceleration sensor 2 Middle part acceleration sensor 3 Pit acceleration sensor 4 Speed change release switch 5 Maximum speed command 6 Operation range restriction command 7 P wave operation command 8 S wave operation command 9 Control means 10 Microcomputer 10a Input circuit 10b CPU
10c Memory 10d Output circuit 11 S wave seismic detector 12 P wave seismic detector 13 Unit 1 fire fighting operation switch 14 Unit 1 stop command 15 Unit 2 stop command 16 Unit 1 fire fighting operation light command

Claims (24)

Earthquake detection means that detects the magnitude of an earthquake when an earthquake occurs,
And control means for controlling the operation of the elevator car according to the magnitude of the earthquake detected by the earthquake detection means,
The control means includes
When a P-wave exceeding a predetermined value is detected by the earthquake detection means, the car is stopped at the nearest floor for a predetermined time, and automatically returns to normal operation if no S-wave is detected during that time. P wave operation command to be output,
When an S wave is detected within the predetermined time, a maximum speed command for operating the car is output within a maximum speed that decreases according to the magnitude of the S wave shake after the predetermined time has elapsed,
When the detected swing of the S wave is equal to or greater than a first value , an operation range restriction command for operating the car is output in a floor range where the car and the weight do not pass each other,
When the detected S-wave fluctuation is equal to or greater than a second value greater than the first value, the car is stopped at the nearest floor, and then an S-wave operation command for pausing the elevator is output. The elevator apparatus which controls operation | movement of.   A counter that outputs a release signal after a predetermined time has elapsed since the occurrence of the earthquake by the earthquake detection means; and the control means changes the operation of the car to an operation during normal operation based on the release signal from the counter The elevator apparatus according to claim 1.   2. A release switch that outputs a release signal in response to an operation by a maintenance staff, wherein the control means sets the operation of the car to an operation during normal operation based on the release signal from the release switch. The elevator apparatus as described.   2. The elevator apparatus according to claim 1, wherein the control means controls the operation of the car according to the maximum speed command when the weight of the car and the elevator pass each other.   2. The elevator apparatus according to claim 1, wherein the control means controls the operation of the car in accordance with the maximum speed command when the car is moving in the vicinity of an upper floor during the ascending operation.   2. The elevator apparatus according to claim 1, wherein the control means controls the operation of the car according to the maximum speed command when the car is moving downward and in the vicinity of a lower floor.   The elevator apparatus according to claim 1, wherein the earthquake detection means is provided in an elevator machine room.   2. The elevator apparatus according to claim 1, wherein the earthquake detection means is provided in a hoistway. In the control method of the elevator apparatus that controls the operation of the elevator car when an earthquake occurs,
The magnitude of the earthquake is detected together with the occurrence of the earthquake, and when the occurrence of the earthquake is detected, the operation of the elevator car is controlled according to the magnitude of the detected earthquake, and in this control,
When a P wave exceeding a predetermined value is detected, the car is stopped at the nearest floor for a predetermined time, and a P wave operation command is automatically returned to normal operation if no S wave is detected during that time. When,
If an S wave is detected within the predetermined time, a maximum speed command for operating the car within a maximum speed that decreases according to the magnitude of the S wave shake after the predetermined time has elapsed;
When the detected S-wave fluctuation is equal to or greater than a first value , an operation range restriction command for operating the car in a floor range where the car and the weight are not missed,
When the detected S-wave fluctuation is greater than or equal to a second value greater than the first value , control is performed based on the S-wave operation command for stopping the elevator after stopping the car at the nearest floor. An elevator apparatus control method characterized by the above.   The method for controlling an elevator apparatus according to claim 9, wherein the operation of the car is changed to an operation during normal operation after a predetermined time has elapsed since the detection of the occurrence of the earthquake.   The elevator apparatus control method according to claim 9, wherein the operation of the car is changed to an operation during normal operation by an operation of a maintenance worker.   10. The method of controlling an elevator apparatus according to claim 9, wherein when the weight of the car and the elevator pass each other, the operation of the car is controlled by the maximum speed command.   10. The control method for an elevator apparatus according to claim 9, wherein when the car is moving up and near the upper floor, the operation of the car is controlled by the maximum speed command.   10. The method of controlling an elevator apparatus according to claim 9, wherein when the car is moving down and moving in the vicinity of a lower floor, the operation of the car is controlled by the maximum speed command.   A storage unit for storing an allowable earthquake magnitude for each elevator is provided, and the control unit compares the magnitude of the earthquake detected by the earthquake detection unit with the allowable earthquake size stored in the storage unit. The elevator apparatus according to claim 1, wherein the operation of the corresponding elevator is controlled based on the result.   The control means stops the corresponding elevator car when the magnitude of the earthquake detected by the earthquake detection means exceeds the allowable magnitude of the earthquake stored in the storage unit. The elevator apparatus according to claim 15, characterized in that:   17. The elevator apparatus according to claim 16, wherein the control means performs a trial operation of the car at a low speed prior to returning the stopped car to normal operation.   16. The elevator apparatus according to claim 15, wherein the earthquake detection means is arranged so as to be common to the elevators.   16. The elevator apparatus according to claim 15, wherein the control means notifies the outside of the elevator having the largest allowable earthquake magnitude stored in the storage unit to be used for rescue.   An allowable earthquake magnitude is stored in advance for each elevator, and the operation of the elevator car is controlled based on a comparison result between the detected earthquake magnitude and the allowable earthquake magnitude. An elevator apparatus control method according to claim 9.   21. The method for controlling an elevator apparatus according to claim 20, wherein when the detected magnitude of the earthquake exceeds the allowable magnitude of the earthquake, the elevator car is stopped.   The control method for an elevator apparatus according to claim 21, wherein the car is trial-run at a low speed prior to returning the stopped car to normal operation.   21. The method of controlling an elevator apparatus according to claim 20, wherein the detection of the magnitude of the earthquake is performed in common to each elevator.   The elevator apparatus control method according to claim 20, wherein the elevator having the largest allowable earthquake magnitude is notified to the outside so as to be used for rescue.

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