Motor controller
US5659472A · kind A · utility
15Cited by
11References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 28, 1995 |
| Grant date | Aug 19, 1997 |
| Priority date | — |
| Expiry date | Aug 28, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D5/0487
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
[Object] To improve system reliability and safety. [Constitution] The rotation speed of the motor 6 is detected by the motor rotation speed detection circuit 17 and the amount of rotation of the motor 6 is calculated from the detected rotation speed by the motor rotation amount calculating means 10a. Then, a fault is determined when the amount of rotation exceeds a predetermined value and the drive of the motor 6 is stopped by the motor stopping means 123.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.