Sensor device, motor control device, and electric power steering apparatus
US9772249B2 · kind B2 · utility
2Cited by
2References
8Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Aug 1, 2014 |
| Grant date | Sep 26, 2017 |
| Priority date | — |
| Expiry date | Sep 10, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K11/24
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A sensor device, such as a torque sensor, of a motor control device or an electric power steering apparatus includes a sensor section that detects a quantity of state of a detection subject and outputs a detection signal corresponding to the detected quantity of state. When receiving a specific trigger transmitted from an external device, the sensor section outputs an abnormality diagnosis signal, which is configured by a predetermined waveform and used for determining whether there is an output abnormality of the sensor section, and then outputs the detection signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.