Rotation detecting apparatus and electric power steering apparatus using the same
US10328972B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2017 |
| Grant date | Jun 25, 2019 |
| Priority date | — |
| Expiry date | Apr 4, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D2218/10
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In a rotation detecting apparatus, a sensor includes a sensor element outputting a measurement value representing rotation of a detection target, and a circuit module. The circuit module includes a rotational angle calculator calculating, based on the measurement value, rotational angle information indicative of a rotational angle of the detection target. The rotational angle calculator generates a rotational angle signal including the rotational angle information. The circuit module includes a rotation number calculator calculating, based on the measurement value, rotation number information representing the number of rotations of the detection target. The rotation number calculator generates a rotation number signal including the rotation number information. An output unit outputs, as an output signal, a series of the rotational angle signal and the rotation number signal. A controller obtains the output signal from the communicator, and calculates, based on the output signal, information about the rotation of the detection target.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.