Method of detecting the angle of rotation and load torque of a DC motor, and apparatus of detecting the angle of rotation and load torque of a DC motor
US6016042A · kind A · utility
21Cited by
14References
21Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 4, 1997 |
| Grant date | Jan 18, 2000 |
| Priority date | — |
| Expiry date | Jun 4, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P7/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method of detecting the angle of rotation of a DC motor includes the steps of: driving the DC motor with a predetermined torque for a predetermined period of time which is selected so that the angular acceleration of the DC motor is substantially constant during the above period of time; and calculating the angle of rotation of the DC motor from the driving time period and the voltage generated by the DC motor after the driving of the DC motor is stopped. This method makes it possible to accurately detect the angle of rotation and the load torque using an apparatus having a simple structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.