CN1953923B - Control device and method of elevator - Google Patents
Control device and method of elevator Download PDFInfo
- Publication number
- CN1953923B CN1953923B CN2005800155228A CN200580015522A CN1953923B CN 1953923 B CN1953923 B CN 1953923B CN 2005800155228 A CN2005800155228 A CN 2005800155228A CN 200580015522 A CN200580015522 A CN 200580015522A CN 1953923 B CN1953923 B CN 1953923B
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- CN
- China
- Prior art keywords
- elevator
- speed
- speed control
- control unit
- value
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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Classifications
-
- 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
- B66B1/30—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on driving gear, e.g. acting on power electronics, on inverter or rectifier controlled motor
-
- 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
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Elevator Control (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
In an elevator having sheaves and motors for individually driving the sheaves, an abnormality of traction loss of the sheaves is prevented. A control device for an elevator has a main rope for connecting an elevator car and a counterbalance weight, sheaves on which the main rope is passed, motors for individually driving the sheaves, and speed control devices for individually controlling torque of the motors. The control device performs a required operation mode according to speed command values to the speed control devices. The control device further has an abnormality detection device for comparing torque command values of the speed control devices and, when the resultant difference exceeds a predetermined standard value, outputting an abnormality signal based on its determination that any one of the sheaves has traction loss.
Description
Technical field
The elevator control gear that the present invention relates to have a plurality of pulleys and drive the motor of these pulleys respectively.
Background technology
For example patent documentation 1 is disclosed such, and this elevator in the past has: the main rope that engages car and counter weight; Reeled a plurality of pulleys of this main rope; Drive a plurality of motors of these pulleys respectively; And a plurality of speed control units of controlling the torque of these motors respectively, this elevator in the past is according to the speed value of these speed control units is carried out needed operation mode.
Patent documentation 1 Japanese kokai publication sho 55-106971 communique
In this elevator control gear, usually it is identical to be controlled to be the main rope speed that makes the part that is wound on each pulley, but when producing velocity contrast for the moment for a certain reason, exist the tension force between two pulleys to descend, main rope is lax, produce " traction breaks away from " at side's pulley, cause pulley idle running, can not drive the situation of elevator.In addition, said herein " traction breaks away from " is meant that the tractive force that makes for a certain reason between pulley and the main rope descends, and the result forms the state that main rope skids, pulley dallies.
Summary of the invention
The present invention proposes in order to address the above problem, and its purpose is, has a plurality of pulleys and is driving respectively in the elevator of motor of these pulleys, and the traction of anti-limited slip wheel breaks away from, and improves the safety of elevator.
Elevator control device of the present invention, this elevator has: the main rope that engages car and counter weight; Reeled a plurality of pulleys of this main rope; Drive a plurality of motors of these pulleys respectively; And a plurality of speed control units of controlling the torque of these motors respectively, according to the speed value of these speed control units is carried out needed operation mode, in this control setup, also has abnormal detector, it is the torque instruction value separately of each speed control unit relatively, when its difference surpasses predetermined reference value, be considered as any pulley and produce the traction disengaging, and output abnormality signal, exported at abnormal detector under the situation of abnormal signal, operation mode according to this moment, change is to the speed value of each speed control unit, to carry out promptly stopping of elevator, speed reduces, any action during acceleration-deceleration reduces.
According to the present invention, have a plurality of pulleys and driving respectively in the elevator of motor of these pulleys, can detect the idle running that causes because of certain pulley traction disengaging, running state reduction acceleration/accel, constant speed, deceleration/decel according to elevator move, breaking away from error state from traction thus recovers normal and moves, perhaps, can before causing secondary failure, promptly stop, safer elevator control device can be provided not recovering under the normal situation from traction disengaging error state.
Description of drawings
Fig. 1 is the explanation block diagram of the elevator control gear of expression embodiments of the present invention 1.
Fig. 2 is the block diagram of the abnormal detector of expression embodiment 1.
Fig. 3 is the figure of signal condition of the action of the expression abnormal detector that is used to illustrate embodiment 1.
Fig. 4 is the diagram of circuit that is used to illustrate the action of embodiment 1.
Label declaration
1 car; 2 counter weights; 3 main ropes; The 4a pulley; The 4b pulley; The 5a motor; The 5b motor; The 6a speed control unit; The 6b speed control unit; 7 speed command generation devices; 8 abnormal detectors
The specific embodiment
Below, according to Fig. 1 embodiments of the present invention 1 are described.
In Fig. 1, car 1 is connected by main rope 3 with counter weight 2, and is wound on two pulley 4a, the 4b that driven by different elevator motor 5a, 5b.When driving elevator, from speed command generation device 7 to the speed control unit 6a of each elevator motor 5a, 5b, the car speed command value that 6b provides elevator, thereby each speed control unit 6a, 6b offer each elevator motor 5a, 5b to torque instruction value and control their output torque, make them follow separately speed value, by driving each pulley 4a, 4b main rope 3 is rolled, made lift car 1 operation.The abnormal detector 8 relatively output signal of each speed control unit 6a, 6b is torque instruction value τ a and τ b, reach predetermined reference value when above in its difference, being considered as traction breaks away from unusual and to speed command generation device 7 output abnormality signals, according to the operation mode of elevator at this moment, change speed value a, b for each speed control unit 6a, 6b.
Fig. 2 represents the concrete structure of abnormal detector 8, the signal condition of the each several part when Fig. 3 represents abnormality detection.In Fig. 2, be torque instruction value τ a and τ b computing according to the output signal of speed control unit 6a, 6b by arithmetic and logic unit 81 | τ a-τ b|, and input comparator 82.
In this embodiment 1, the diameter of establishing two pulley 4a, 4b is identical, therefore when elevator normally moves, and τ a roughly
τ b.
Herein, for example when the traction of pulley 4b breaks away from (Fig. 3 A), pulley 4b idle running is so torque instruction value τ b reduces.Thereupon, need export necessary torque, so torque instruction value τ a rises by motor 5a.Therefore, | τ a-τ b| gets certain bigger value.So, by comparator 82 relatively | τ a-τ b| and predetermined a reference value T, when | τ a-τ b|>T, output abnormality judgement symbol (Fig. 3 B).And, when unusual judgement symbol continues during certain hour t1, make latch cicuit 83 be latched as abnormal signal (Fig. 3 C).Thus, can detect the traction disengaging of pulley 4b.
, survey herein, get certain hour t in order flase drop not occur
1, but also can be made as t
1=0 and instant the detection.
And, in this embodiment, if the diameter of pulley 4a, 4b is identical, but when the diameter of each pulley 4a, 4b is different diameter Da and Db, can compare by comparator 82 | Da * τ a-Db * τ b| and predetermined a reference value T ', when | Da * τ a-Db * τ b|>T ', the output abnormality judgement symbol.
Fig. 4 is the diagram of circuit that is used to illustrate the action of embodiments of the present invention 1.
At first, judge whether just to be in operation,, then judge whether to detect traction and break away from unusual in step 200 if be in operation in step 100.Break away from when unusual detecting traction, then judge operation mode.At first, judge whether to quicken,, then make it reduce acceleration operation in step 301 if in acceleration in step 300.If not in acceleration, then judge whether just in constant-speed operation in step 310.If in constant-speed operation, then make its operation that underspeeds in step 311.If not in constant-speed operation, then in deceleration,,, then make it reduce the deceleration/decel operation in step 321 if deceleration distance is enough so judge in step 320 whether deceleration distance is enough.If deceleration distance is not enough, then elevator emergency is stopped in step 700.
Reduce acceleration/accel, constant speed, deceleration/decel respectively in step 301,311,321, after step 400 judges to detect unusually, whether passed through certain hour t
2, passing through certain hour t
2After, judge whether in step 500 | τ a-τ b|>T.When | τ a-τ b|≤T, it is normal and continue to advance to be considered as breaking away from abnormal restoring from traction in step 600.If be still | τ a-τ b|>T, then being judged as can not be normal from traction disengaging abnormal restoring, in step 700 elevator emergency is stopped.
Thus, break away from when unusual having produced traction, move by reducing acceleration/accel, constant speed, deceleration/decel, it is normal to break away from abnormal restoring from traction, makes elevator safety operation.And,, can prevent that elevator from producing secondary failure not stopping by making elevator emergency when traction breaks away from abnormal restoring.
In addition, the invention is not restricted to the situation of two groups of pulleys and motor, equally also go for three groups of above situations.
Claims (4)
1. elevator control device, this elevator has: the main rope that engages car and counter weight; Reeled a plurality of pulleys of this main rope; Drive a plurality of motors of these pulleys respectively; And a plurality of speed control units of controlling the torque of these motors respectively, this elevator is characterized in that according to the speed value of these speed control units is carried out needed operation mode,
This elevator control device has abnormal detector, and the torque instruction value separately of more described each speed control unit of this abnormal detector when its difference surpasses predetermined reference value, is considered as any pulley and produces the traction disengaging, and the output abnormality signal,
Exported at described abnormal detector under the situation of abnormal signal,, changed speed value described each speed control unit according to the operation mode of this moment, with carry out promptly the stopping of elevator, speed reduces, acceleration-deceleration any action in reducing.
2. elevator control device according to claim 1 is characterized in that, described abnormal detector under the situation that described a plurality of pulleys are made of the 1st and the 2nd pulley that has different-diameter Da, Db respectively, according to following formula output abnormality signal,
|Da×τa-Db×τb|>T’
Wherein, τ a: the torque instruction value of the speed control unit of the motor of next self-driven the 1st pulley
τ b: the torque instruction value of the speed control unit of the motor of next self-driven the 2nd pulley
T ': predetermined reference value.
3. elevator control device according to claim 1, it is characterized in that, after the speed or acceleration-deceleration that reduce elevator, the torque instruction value separately of more described speed control unit, do not drop to described a reference value yet when following in its difference, elevator emergency is stopped.
4. the control method of an elevator, this elevator has: the main rope that engages car and counter weight; Reeled a plurality of pulleys of this main rope; Drive a plurality of motors of these pulleys respectively; And a plurality of speed control units of controlling the torque of these motors respectively, according to the speed value of these speed control units is carried out needed operation mode, it is characterized in that,
The torque instruction value separately of more described each speed control unit of control method of this elevator, when its difference surpasses predetermined reference value, operation mode according to this moment, change is to the speed value of described each speed control unit, with carry out promptly the stopping of elevator, speed reduces, acceleration-deceleration any action in reducing.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2005/008624 WO2006120737A1 (en) | 2005-05-11 | 2005-05-11 | Control device for elevator |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1953923A CN1953923A (en) | 2007-04-25 |
CN1953923B true CN1953923B (en) | 2011-05-18 |
Family
ID=37396260
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2005800155228A Expired - Fee Related CN1953923B (en) | 2005-05-11 | 2005-05-11 | Control device and method of elevator |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1880966B1 (en) |
JP (1) | JP4919800B2 (en) |
CN (1) | CN1953923B (en) |
WO (1) | WO2006120737A1 (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010103643A1 (en) * | 2009-03-12 | 2010-09-16 | 三菱電機株式会社 | Elevator equipment |
CN101857157B (en) * | 2010-06-02 | 2012-04-11 | 中国科学院自动化研究所 | Automatic basket control system |
CN101992976A (en) * | 2010-11-05 | 2011-03-30 | 沈阳建筑大学 | Automatic control system of high-operating hanging basket |
FI20115246A0 (en) * | 2011-03-11 | 2011-03-11 | Kone Corp | Elevator system |
JP5865037B2 (en) * | 2011-11-28 | 2016-02-17 | 株式会社日立製作所 | Elevator operation management system |
CN102730567B (en) * | 2012-07-09 | 2014-04-16 | 中联重科股份有限公司 | Lifting control equipment, method and system and crane |
DE102012218612A1 (en) | 2012-10-12 | 2014-04-30 | Continental Automotive Gmbh | Motor control and method for field-oriented control of an electric motor |
CN102942098A (en) * | 2012-11-09 | 2013-02-27 | 江苏大学 | Dual-motor elevator traction system and control method thereof |
US10906775B2 (en) | 2015-08-19 | 2021-02-02 | Otis Elevator Company | Elevator control system and method of operating an elevator system |
CN109153537B (en) * | 2016-05-23 | 2021-03-12 | 三菱电机株式会社 | Elevator device |
JP6673523B2 (en) * | 2017-02-27 | 2020-03-25 | 三菱電機株式会社 | Elevator failure monitoring device and elevator group management device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN1522220A (en) * | 2002-05-01 | 2004-08-18 | 三菱电机株式会社 | Elevating/lowering mechanism and elevating/lowering method for elevator |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5922867A (en) * | 1982-07-29 | 1984-02-06 | 三菱電機株式会社 | Rope type elevator |
JPS6037219B2 (en) * | 1983-03-28 | 1985-08-24 | 株式会社ニッセン | Liquid flow delivery device for textile products in liquid flow type textile product processing equipment |
JPH0684233B2 (en) * | 1986-03-05 | 1994-10-26 | 株式会社日立製作所 | Elevator device and operation control method thereof |
FI84050C (en) * | 1988-04-18 | 1991-10-10 | Kone Oy | FOERFARANDE FOER KONTROLL AV FRIKTIONEN MELLAN DRIVSKIVA OCH BAERLINOR TILL EN HISS. |
JPH0294875U (en) * | 1989-01-13 | 1990-07-27 | ||
JPH0733228B2 (en) * | 1989-08-07 | 1995-04-12 | 三菱電機株式会社 | Elevator abnormality detection device |
JPH0725553A (en) * | 1993-07-09 | 1995-01-27 | Mitsubishi Electric Corp | Elevator control system |
JPH092752A (en) * | 1995-06-20 | 1997-01-07 | Hitachi Building Syst Eng & Service Co Ltd | Elevator diagnosis device |
JPH0940333A (en) * | 1995-08-02 | 1997-02-10 | Meidensha Corp | Slip detecting device for vertical conveying device |
JP4656692B2 (en) * | 2000-05-09 | 2011-03-23 | 東芝エレベータ株式会社 | Elevator control device |
JP2004149231A (en) * | 2002-10-29 | 2004-05-27 | Mitsubishi Electric Building Techno Service Co Ltd | Emergency stop device of elevator |
JP4267335B2 (en) * | 2003-01-30 | 2009-05-27 | 三菱電機株式会社 | Elevator braking control device |
JP2004345751A (en) * | 2003-05-20 | 2004-12-09 | Fujitec Co Ltd | Safety device for elevator |
-
2005
- 2005-05-11 EP EP05739332.4A patent/EP1880966B1/en not_active Expired - Fee Related
- 2005-05-11 CN CN2005800155228A patent/CN1953923B/en not_active Expired - Fee Related
- 2005-05-11 WO PCT/JP2005/008624 patent/WO2006120737A1/en not_active Application Discontinuation
- 2005-05-11 JP JP2006527197A patent/JP4919800B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1522220A (en) * | 2002-05-01 | 2004-08-18 | 三菱电机株式会社 | Elevating/lowering mechanism and elevating/lowering method for elevator |
Also Published As
Publication number | Publication date |
---|---|
CN1953923A (en) | 2007-04-25 |
EP1880966B1 (en) | 2017-12-20 |
EP1880966A1 (en) | 2008-01-23 |
WO2006120737A1 (en) | 2006-11-16 |
EP1880966A4 (en) | 2012-12-19 |
JP4919800B2 (en) | 2012-04-18 |
JPWO2006120737A1 (en) | 2008-12-18 |
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