MOTOR DRIVE SYSTEM AND MOTOR CONTROL DEVICE
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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N/A
Issued Date -
N/A
app pub date -
Jan 25, 2016
filing date -
Aug 19, 2013
priority date (Note) -
Abandoned
status (Latency Note)
Importance
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US Family Size
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Non-US Coverage
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Abstract
A motor drive system includes a motor, a motor control device, and a sensor that detects torque or acceleration of the motor. The motor control device includes an estimating unit configured to estimate at least one of speed and position of the motor, and a current control unit configured to control current to be supplied to the motor based upon an estimation result by the estimating unit. The estimating unit includes first and second estimating units, and derives an estimated value based upon estimation results by the first and second estimating units. The first estimating unit estimates based upon a detection signal detected by the sensor and a high-frequency component superimposed on an output current to the motor. The second estimating unit estimates from an estimation result of induced voltage of the motor.
First Claim
Other Claims data not available
Family
| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| JP | A1 | JPWO2015025356 | Aug 19, 2013 |
| EP | A1 | EP3038249 | Aug 19, 2013 |
| CN | A | CN105409110 | Aug 19, 2013 |
| WO | A1 | WO2015025356 | Aug 19, 2013 |
International Classification(s)
- 2016 Application Filing Year
- H02P Class
- 1588 Applications Filed
- 1280 Patents Issued To-Date
- 80.61 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 6 Citation Count
- H02P Class
- 11.41 % this patent is cited more than
- 9 Age