EP1721855A2 - Aufzugssteuereinheit - Google Patents

Aufzugssteuereinheit Download PDF

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Publication number
EP1721855A2
EP1721855A2 EP06008217A EP06008217A EP1721855A2 EP 1721855 A2 EP1721855 A2 EP 1721855A2 EP 06008217 A EP06008217 A EP 06008217A EP 06008217 A EP06008217 A EP 06008217A EP 1721855 A2 EP1721855 A2 EP 1721855A2
Authority
EP
European Patent Office
Prior art keywords
gear
car
during
detecting means
traction machine
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.)
Withdrawn
Application number
EP06008217A
Other languages
English (en)
French (fr)
Other versions
EP1721855A3 (de
Inventor
Masami Nomura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Building Solutions Corp
Original Assignee
Mitsubishi Electric Building Techno Service Co Ltd
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 Mitsubishi Electric Building Techno Service Co Ltd filed Critical Mitsubishi Electric Building Techno Service Co Ltd
Publication of EP1721855A2 publication Critical patent/EP1721855A2/de
Publication of EP1721855A3 publication Critical patent/EP1721855A3/de
Withdrawn legal-status Critical Current

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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
    • B66B1/285—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical with the use of a speed pattern generator
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/04—Driving gear ; Details thereof, e.g. seals

Definitions

  • the present invention relates to a controller for an elevator which is provided with a geared traction machine which transmits the driving force of a motor to a driving sheave via a gear.
  • Patent Document 1 Japanese Patent Laid-Open No. 2003-238037
  • the maximum speed and acceleration of a car have been set within an allowable driving range of a motor of a traction machine so that a car can arrive at a next stop-floor which is registered in the shortest time.
  • the elevator in a case where the elevator is equipped with a gear-type traction machine which transmits the driving force of a motor to a driving sheave via a gear, the elevator had the problem that in some characteristics of the gear, it is impossible to obtain a desired speed and acceleration even when the control is within the range of motor characteristics particularly during a braking operation.
  • the elevator had also the problem that by continuing operation control based on the characteristics of the motor alone, an excessive overload acts on the gear of the gear-type traction machine, thereby adversely worsening the operation efficiency and shortening the life of the gear-type traction machine.
  • the present invention has been made in order to solve problems as described above, and the object of the invention is to provide a controller for an elevator which can perform optimum operation control of a car according to motor characteristics and gear characteristics in an elevator provided with a gear-type traction machine which transmits the driving force of a motor to a driving sheave via a gear.
  • the present invention provides a controller for an elevator equipped with a gear-type traction machine which transmits the driving force of a motor to a driving sheave via a gear, which comprises a car which ascends and descends in an elevator shaft, car load detecting means which detects a load acting on the car, operation direction detecting means which detects an operation direction of the car, and speed determining means which determines a maximum speed of the car suited to characteristics of the motor during a power running operation and determines a maximum speed of the car suited to characteristics of the gear of the gear-type traction machine during a braking operation on the basis of detection results of the car load detecting means and the operation direction detecting means.
  • the present invention provides a controller for an elevator equipped with a gear-type traction machine which transmits the driving force of a motor to a driving sheave via a gear, which comprises a car which ascends and descends in an elevator shaft, car load detecting means which detects a load acting on the car, operation direction detecting means which detects an operation direction of the car, and speed determining means which determines a maximum speed of the car suited to characteristics of the motor during a power running operation and determines a maximum speed of the car suited to characteristics of the gear of the gear-type traction machine during a braking operation on the basis of detection results of the car load detecting means and the operation direction detecting means. Therefore, even in an elevator equipped with a gear-type traction machine which transmits the driving force of a motor to a driving sheave via a gear, it is possible to perform optimum operation control of the car according to motor characteristics and gear characteristics.
  • Fig. 1 is a configuration diagram of a controller for an elevator in Embodiment 1 of the present invention.
  • the reference numeral 1 denotes a car which ascends and descends in an elevator shaft
  • the reference numeral 2 denotes a counterweight which ascends and descends in the elevator shaft in a direction reverse to the car 1.
  • the weight of the whole counterweight 2 is adjusted beforehand so that this weight becomes almost equal to the weight of the whole car 1 when half a designated number of passengers ride on the car 1, that is, when a load equivalent to half a rated load acts on the car 1.
  • the reference numeral 3 denotes a main rope which is connected to the car 1 and the counterweight 2 and suspends the car 1 and the counterweight 2 like a well bucket
  • the reference numeral 4 denotes a driving sheave of a gear-type traction machine in which by winding the main rope 3 around a rope groove formed in an outer peripheral surface of the driving sheave 4, the car 1 and the counterweight 2 are caused to ascend and descend in conjunction with the rotation of the driving sheave 4
  • the reference numeral 5 denotes a motor which is driven by supplying power from an inverter 6, and the reference numeral 7 denotes a gear of a gear-type traction machine which is constituted by a worm gear and the like and transmits the driving force of the motor 5 to the driving sheave 4. That is, the gear-type traction machine provided in the elevator is constructed in such a manner as to transmit the driving force of the motor 5 to the driving sheave 4 via the gear 7.
  • the reference numeral 8 denotes operation direction detecting means which detects the operation direction of the car 1
  • the reference numeral 9 denotes car load detecting means which is provided on the floor or the like of the car 1 and detects a load acting on the car 1 from a live load and the like in the car 1
  • the reference numeral 10 denotes motor load calculating means which calculates a load acting on the motor 5 on the basis of detection results of the operation direction detecting means 8 and detection results of the car load detecting means 9.
  • the motor load calculating means 10 calculates the load ratio of the car 1 on the basis of live load information of the car 1 which is inputted from the car load detecting means 9 and rated load information of the car 1 which has been registered beforehand and calculates a load acting on the motor 5 on the basis of this load ratio and operation direction information which is inputted from the operation direction detecting means 8.
  • the above-described load ratio means the ratio of a live load acting on the car 1 to a rated load. The load ratio is 0% when nothing is loaded on the car 1, and the load ratio is 100% when a rated load acts on the car 1.
  • the reference numeral 11 denotes speed determining means which determines a maximum speed of the car 1 suited to the characteristics of the motor 5 during a power running operation and a maximum speed of the car 1 suited to the characteristics of the gear 7 of the gear-type traction machine during a braking operation on the basis of motor load information which is inputted from the motor load calculating means 10.
  • the above-described power running operation refers to a case where the energy supplied from the power source is supplied from the power source side to the car 1 side via the motor 5, the inverter 6 and the like.
  • an ascent operation of the car 1 when the weight of the car 1 is heavier than the weight of the counterweight 2 and a descent operation of the car 1 when the weight of the car 1 is lighter than the weight of the counterweight 2 fall under the power running operation.
  • the above-described braking operation refers to a case where the energy generated by the ascent and descent of the car 1 is supplied from the car 1 side to the power source side via the motor 5, the inverter 6 and the like.
  • a descent operation of the car 1 when the weight of the car 1 is heavier than the weight of the counterweight 2 and an ascent operation of the car 1 when the weight of the car 1 is lighter than the weight of the counterweight 2 fall under the braking operation.
  • Figure 2 is a diagram to describe the operation of the above-described speed determining means 11 in Embodiment 1 of the present invention.
  • the maximum speed of the car 1 during a power running operation is set on the basis of the characteristics of the motor 5, for example, a driving range of the motor 5 which is electrically allowable and the maximum speed of the car 1 during a braking operation is set on the basis of the characteristics of the gear 7 of the gear-type traction machine, for example, an operation rage of the gear 7 which is thermally allowable.
  • Figure 2 shows a case where a maximum speed of the car 1 when a rated load acts on the car 1 is set at 60 m/min both during a power running operation and during a braking operation. The setting of a maximum speed of the car 1 will be described later.
  • a maximum speed of the car 1 is determined to be 75 m/min by the speed determining means 11 and this speed is outputted as speed information of the car 1.
  • a maximum speed of the car 1 is determined to be 60 m/min and this speed is outputted as speed information of the car 1.
  • the reference numeral 12 in Figure 1 denotes speed pattern generating means which generates a speed pattern for controlling the inverter 6 on the basis of speed information of the car 1 which is inputted from the speed determining means 11 and the like.
  • any configuration of this speed pattern generating means 12 is permitted so long as the speed pattern generating means 12 can generate a speed pattern which is appropriate for each piece of speed information which is inputted from the speed determining means 11.
  • the speed pattern generating means 12 may be such that it determines the acceleration and maximum ascent and descent speeds of the car 1 on the basis of speed information which is inputted from the speed determining means 11, load ratio information which is inputted from the motor load calculating means 10, destination floor information which is inputted from a destination floor registering device which is not shown, car position information which shows the present position of the car 1 and the like, and prepares a speed pattern so that the car 1 arrives at a registered destination floor in the shortest time.
  • Fig. 3 shows an example of a speed pattern which is prepared on the basis of a maximum speed of the car 1 which is shown in Fig. 2.
  • P1 to P3 each indicate a speed pattern for each load ratio which is prepared when the car ascends and descends in the same route.
  • the acceleration and deceleration are set at a constant value to simplify the illustration.
  • Figure 4 shows the relationship of this equation, which shows a maximum speed of the car 1 suited to the electrical characteristics of the motor 5 during a power running operation.
  • the energy loss generated in the gear 7 during a braking operation shows a value almost equivalent to the energy loss generated in the gear 7 during a power running operation.
  • the energy loss Lm of the gear 7 during a power running operation and the energy loss Lb of the gear 7 during a braking operation are respectively calculated by the following equations.
  • the energy loss generated in the gear 7 shows almost the same value during a power running operation and during a braking operation. Therefore, for the heat generation resulting from the energy loss, almost the same heat is generated during a power running operation and during a braking operation.
  • the operation capacity of the gear 7 is limited by the temperature characteristics of each gear which constitutes the gear 7 rather than the mechanical strength of each gear which constitutes the gear 7. Therefore, during a braking operation, even when there is a margin in the electrical operation capacity of the electric devices such as the motor 5, it is impossible to increase the speed of the car 1 above the operation capacity of the gear 7, because the operation capacity of the gear 7 is limited by the heat generation resulting from the energy loss.
  • Figure 5 shows the relationship of this equation, which shows a maximum speed of the car 1 suited to the temperature characteristics of the gear 7 during a braking operation.
  • M m
  • a prescribed maximum speed exists under other constraints of safety equipment and the like.
  • Fig. 6 is a diagram which shows a maximum speed of the car 1 during a power running operation and during a braking operation when the constraints of safety equipment and the like are considered.
  • a maximum speed based on the electrical characteristics of the electric devices, among others, the motor 5 is lower than a maximum speed based on the thermal characteristics of the gear 7.
  • a maximum speed of the car 1 which is set in the speed determining means 11 is determined mainly by the electrical characteristics of the motor 5.
  • a maximum speed is determined on the basis of the constraints of safety equipment and the like.
  • a maximum speed based on the thermal characteristics of the gear 7 is much lower than a maximum speed based on the electrical characteristics of the motor 5.
  • a maximum speed of the car 1 set in the speed determining means 11 is determined mainly by the thermal characteristics of the gear 7.
  • a maximum speed is determined on the basis of the constraints of safety equipment and the like.
  • a maximum speed of the car 1 in the formation of a speed pattern is determined according to the characteristics of the motor 5 during a power running operation and according to the characteristics of the gear 7 during a braking operation. Therefore, it becomes possible to perform optimum operation control of the car 1 and to improve the operation efficiency of the elevator. That is, it becomes possible to prevent the operation efficiency from becoming worse due to an excessive overload on the gear 7 during elevator operations and also to prevent the life of the gear-type traction machine from becoming short due to excessive heat generated in the gear 7.
  • Figure 7 is a configuration diagram of a controller for elevators in Embodiment 2 of the present invention.
  • the reference numeral 13 denotes gear temperature detecting means which detects the temperature of a gear 7 of a gear-type traction machine
  • the reference numeral 14 denotes gear temperature judging means which judges whether the temperature of the gear 7 detected by the gear temperature detecting means 13 exceeds a prescribed value.
  • the gear temperature detecting means 13 may be either a type which directly measures the temperature of the gear 7 or a type which indirectly detects the temperature of the gear 7 on the basis of the temperature of a gear oil and the like used in the gear 7.
  • Other configurational features are the same as in Embodiment 1.
  • motor load calculating means 10 detects a load acting on a motor 5 on the basis of detection results of operation direction detecting means 8 and detection results of car load detecting means 9.
  • Speed determining means 11 determines a maximum speed of a car 1 suited to the characteristics of the motor 5 during a power running operation and a maximum speed of the car 1 suited to the characteristics of the gear 7 of the gear-type traction machine during a braking operation on the basis of motor load information which is inputted from the motor load calculating means 10 and judgment results of the gear temperature judging means 14.
  • Figure 8 is a diagram to describe the operation of the speed determining means 11 in Embodiment 2 of the present invention.
  • a maximum speed of the car 1 during a power running operation is set in the same manner as in Embodiment 1 according to the characteristics of the motor 5 on the basis of calculation results of the motor load calculating means 10.
  • a maximum speed of the car 1 during a braking operation is set according to the characteristics of the gear 7 on the basis of judgment results of the gear temperature judging means 14 and calculation results of the motor load calculating means 10.
  • the speed determining means 11 determines a maximum speed of the car 1 which is set on the basis of an operation range of the gear 7 which is thermally allowable.
  • the speed determining means 11 determines a maximum speed which is limited to not more than a maximum speed of the car 1 in the case where it is judged by the gear temperature judging means 14 that the temperature of the gear 7 of the gear-type traction machine does not exceed a prescribed value.
  • Embodiment 2 performs the same operation and produces the same effects as in Embodiment 1.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Elevator Control (AREA)
EP06008217A 2005-05-10 2006-04-20 Aufzugssteuereinheit Withdrawn EP1721855A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005137001A JP4584019B2 (ja) 2005-05-10 2005-05-10 エレベータの制御装置

Publications (2)

Publication Number Publication Date
EP1721855A2 true EP1721855A2 (de) 2006-11-15
EP1721855A3 EP1721855A3 (de) 2009-08-19

Family

ID=36916161

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06008217A Withdrawn EP1721855A3 (de) 2005-05-10 2006-04-20 Aufzugssteuereinheit

Country Status (4)

Country Link
EP (1) EP1721855A3 (de)
JP (1) JP4584019B2 (de)
KR (1) KR101171371B1 (de)
CN (1) CN100569614C (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011128493A1 (en) * 2010-04-16 2011-10-20 Kone Corporation Elevator system
US9114955B2 (en) 2010-03-03 2015-08-25 Mitsubishi Electric Corporation Control device for elevator

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010038432A1 (de) * 2010-07-26 2012-01-26 Thyssenkrupp Aufzugswerke Gmbh Aufzugsteuereinrichtung
CN102126655B (zh) * 2010-12-30 2013-06-12 上海电机学院 一种电梯调度方法
JP2014135122A (ja) * 2013-01-08 2014-07-24 Sumitomo Wiring Syst Ltd ワイヤハーネス加工装置
ES2663471T3 (es) * 2014-06-25 2018-04-12 Iveco Magirus Ag Sistema de control y método para controlar el movimiento de un aparato aéreo
EP3608274A1 (de) * 2018-08-10 2020-02-12 Otis Elevator Company Erhöhung der transportkapazität eines aufzugssystems
CN109179104A (zh) * 2018-11-16 2019-01-11 迅达（中国）电梯有限公司 电梯控制方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB588209A (en) * 1945-02-05 1947-05-16 British Thomson Houston Co Ltd Improvements relating to electric control systems for electric motors, steam engines and other prime movers
GB2112343A (en) * 1981-12-28 1983-07-20 Mitsubishi Electric Corp Elevator drive apparatus using a traction-type speed change gear
DE3629032A1 (de) * 1986-08-27 1988-04-14 Haushahn C Gmbh Co Hebezeug, insbesondere aufzug
JP2003238037A (ja) * 2001-12-10 2003-08-27 Mitsubishi Electric Corp エレベータの制御装置
US6619434B1 (en) * 2002-03-28 2003-09-16 Thyssen Elevator Capital Corp. Method and apparatus for increasing the traffic handling performance of an elevator system
US20050006181A1 (en) * 2003-06-30 2005-01-13 Kwan-Chul Lee Gravity potential powered elevator

Family Cites Families (3)

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Publication number Priority date Publication date Assignee Title
JPS61101578U (de) 1984-12-07 1986-06-28
JPH04140001A (ja) * 1990-09-28 1992-05-14 Toyota Motor Corp 電気自動車の回生制動制御装置
AU2015227127B2 (en) 2014-03-07 2017-09-14 3M Innovative Properties Company Article and method for detecting aerobic bacteria

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB588209A (en) * 1945-02-05 1947-05-16 British Thomson Houston Co Ltd Improvements relating to electric control systems for electric motors, steam engines and other prime movers
GB2112343A (en) * 1981-12-28 1983-07-20 Mitsubishi Electric Corp Elevator drive apparatus using a traction-type speed change gear
DE3629032A1 (de) * 1986-08-27 1988-04-14 Haushahn C Gmbh Co Hebezeug, insbesondere aufzug
JP2003238037A (ja) * 2001-12-10 2003-08-27 Mitsubishi Electric Corp エレベータの制御装置
US6619434B1 (en) * 2002-03-28 2003-09-16 Thyssen Elevator Capital Corp. Method and apparatus for increasing the traffic handling performance of an elevator system
US20050006181A1 (en) * 2003-06-30 2005-01-13 Kwan-Chul Lee Gravity potential powered elevator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9114955B2 (en) 2010-03-03 2015-08-25 Mitsubishi Electric Corporation Control device for elevator
WO2011128493A1 (en) * 2010-04-16 2011-10-20 Kone Corporation Elevator system
US8789660B2 (en) 2010-04-16 2014-07-29 Kone Corporation Elevator system using a movement profile

Also Published As

Publication number Publication date
JP4584019B2 (ja) 2010-11-17
EP1721855A3 (de) 2009-08-19
CN100569614C (zh) 2009-12-16
KR20060116714A (ko) 2006-11-15
CN1861508A (zh) 2006-11-15
JP2006315773A (ja) 2006-11-24
KR101171371B1 (ko) 2012-08-10

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