Torque control apparatus for rotating motor machine
US4992715A · kind A · utility
34Cited by
18References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 3, 1988 |
| Grant date | Feb 12, 1991 |
| Priority date | — |
| Expiry date | Aug 3, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D17/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A torque control unit rotates a motor machine having a motor element and a load element. The load element is coupled to the motor element via a rotational main shaft and driven to rotate by the motor element. Rotational acceleration at each rotation angle during one revolution of the rotational main shaft is detected and fed back. An electromagnetic torque of the motor element is controlled so that a difference between the electromagnetic torque of the motor element and a load torque of the load element may become zero at each rotation angle of the rotational main shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.