Method of and an apparatus for detecting an angular velocity of a motor and for controlling the same
US5418442A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 1, 1994 |
| Grant date | May 23, 1995 |
| Priority date | — |
| Expiry date | Apr 1, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P6/17
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention is directed to a method of and an apparatus for detecting an angular velocity and a rotation angle of a rotary member and for controlling a motor disposed to drive the rotary member. In the present invention, first and second accelerations at first and second points of the rotary member are detected, respectively. The first and second accelerations are added. From the added value an angular velocity of the rotary member is calculated. A signal is generated representing the angular velocity and compared with predetermined control instructions. A control input is generated based upon this comparison, and the motor is controlled based upon the control input.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.