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Elevator Control Device
Abstract: In this proposed elevator control device, an unbalance torque estimation unit 17 for estimating an unbalance torque in a motor, which is necessary to reduce a sudden change in the status of a car that occurs at the start of traveling of an elevator, is implemented according to a new finding that the unbalance torque can be estimated on the basis of: a first time taken from a change in an output of a brake state command signal that switches the operating state of a brake 36 from a braking state to an open state, to start the rotation operation of the motor 31 in response to the opening of the brake 36; and a positive or negative sign of a speed signal obtained when the motor 31 starts to rotate. As a result, a smaller calculation load can be achieved as compared with the related art. Further, it is possible to ensure sufficient responsiveness for suppressing the influence of the unbalanced torque.
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Notices, Deadlines & Correspondence
Notices, Deadlines & Correspondence
Patent Information
Application #
Filing Date
24 August 2021
Publication Number
36/2021
Publication Type
INA
Invention Field
MECHANICAL ENGINEERING
Status
Email
bangalore@knspartners.com
Parent Application
Patent Number
Legal Status
Grant Date
2023-12-27
Renewal Date
Applicants
MITSUBISHI ELECTRIC CORPORATION
7-3, Marunouchi 2-chome, Chiyoda-ku, Tokyo
1008310
Inventors
1. KIMURA, Tetsuya
c/o Mitsubishi Electric Corporation, 7-3, Marunouchi 2-chome, Chiyoda-ku, Tokyo
1008310
2. YOKOYAMA, Eiji
c/o Mitsubishi Electric Corporation, 7-3, Marunouchi 2-chome, Chiyoda-ku, Tokyo
1008310
3. BABA, Toshiyuki
c/o Mitsubishi Electric Corporation, 7-3, Marunouchi 2-chome, Chiyoda-ku, Tokyo
1008310
4. OTSUKA, Yasushi
c/o Mitsubishi Electric Corporation, 7-3, Marunouchi 2-chome, Chiyoda-ku, Tokyo
1008310
Specification
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | 202147038210-IntimationOfGrant27-12-2023.pdf | 2023-12-27 |
| 1 | 202147038210-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [24-08-2021(online)].pdf | 2021-08-24 |
| 2 | 202147038210-PatentCertificate27-12-2023.pdf | 2023-12-27 |
| 2 | 202147038210-STATEMENT OF UNDERTAKING (FORM 3) [24-08-2021(online)].pdf | 2021-08-24 |
| 3 | 202147038210-REQUEST FOR EXAMINATION (FORM-18) [24-08-2021(online)].pdf | 2021-08-24 |
| 3 | 202147038210-FER_SER_REPLY [27-05-2022(online)].pdf | 2022-05-27 |
| 4 | 202147038210-PROOF OF RIGHT [24-08-2021(online)].pdf | 2021-08-24 |
| 4 | 202147038210-FORM 3 [27-05-2022(online)].pdf | 2022-05-27 |
| 5 | 202147038210-POWER OF AUTHORITY [24-08-2021(online)].pdf | 2021-08-24 |
| 5 | 202147038210-Information under section 8(2) [27-05-2022(online)].pdf | 2022-05-27 |
| 6 | 202147038210-FORM 18 [24-08-2021(online)].pdf | 2021-08-24 |
| 6 | 202147038210-FER.pdf | 2022-03-08 |
| 7 | 202147038210-FORM 1 [24-08-2021(online)].pdf | 2021-08-24 |
| 7 | 202147038210-AMMENDED DOCUMENTS [02-11-2021(online)].pdf | 2021-11-02 |
| 8 | 202147038210-FORM 13 [02-11-2021(online)].pdf | 2021-11-02 |
| 8 | 202147038210-DRAWINGS [24-08-2021(online)].pdf | 2021-08-24 |
| 9 | 202147038210-DECLARATION OF INVENTORSHIP (FORM 5) [24-08-2021(online)].pdf | 2021-08-24 |
| 9 | 202147038210-FORM 3 [02-11-2021(online)].pdf | 2021-11-02 |
| 10 | 202147038210-COMPLETE SPECIFICATION [24-08-2021(online)].pdf | 2021-08-24 |
| 10 | 202147038210-MARKED COPIES OF AMENDEMENTS [02-11-2021(online)].pdf | 2021-11-02 |
| 11 | 202147038210.pdf | 2021-10-19 |
| 12 | 202147038210-COMPLETE SPECIFICATION [24-08-2021(online)].pdf | 2021-08-24 |
| 12 | 202147038210-MARKED COPIES OF AMENDEMENTS [02-11-2021(online)].pdf | 2021-11-02 |
| 13 | 202147038210-DECLARATION OF INVENTORSHIP (FORM 5) [24-08-2021(online)].pdf | 2021-08-24 |
| 13 | 202147038210-FORM 3 [02-11-2021(online)].pdf | 2021-11-02 |
| 14 | 202147038210-DRAWINGS [24-08-2021(online)].pdf | 2021-08-24 |
| 14 | 202147038210-FORM 13 [02-11-2021(online)].pdf | 2021-11-02 |
| 15 | 202147038210-AMMENDED DOCUMENTS [02-11-2021(online)].pdf | 2021-11-02 |
| 15 | 202147038210-FORM 1 [24-08-2021(online)].pdf | 2021-08-24 |
| 16 | 202147038210-FER.pdf | 2022-03-08 |
| 16 | 202147038210-FORM 18 [24-08-2021(online)].pdf | 2021-08-24 |
| 17 | 202147038210-Information under section 8(2) [27-05-2022(online)].pdf | 2022-05-27 |
| 17 | 202147038210-POWER OF AUTHORITY [24-08-2021(online)].pdf | 2021-08-24 |
| 18 | 202147038210-FORM 3 [27-05-2022(online)].pdf | 2022-05-27 |
| 18 | 202147038210-PROOF OF RIGHT [24-08-2021(online)].pdf | 2021-08-24 |
| 19 | 202147038210-REQUEST FOR EXAMINATION (FORM-18) [24-08-2021(online)].pdf | 2021-08-24 |
| 19 | 202147038210-FER_SER_REPLY [27-05-2022(online)].pdf | 2022-05-27 |
| 20 | 202147038210-STATEMENT OF UNDERTAKING (FORM 3) [24-08-2021(online)].pdf | 2021-08-24 |
| 20 | 202147038210-PatentCertificate27-12-2023.pdf | 2023-12-27 |
| 21 | 202147038210-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [24-08-2021(online)].pdf | 2021-08-24 |
| 21 | 202147038210-IntimationOfGrant27-12-2023.pdf | 2023-12-27 |
Search Strategy
| 1 | 202147038210E_08-03-2022.pdf |