Identification of a secondary part during use in a linear-motor-based system
US10516359B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2018 |
| Grant date | Dec 24, 2019 |
| Priority date | — |
| Expiry date | Sep 13, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P2203/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for identifying a secondary part during use in a linear-motor-based system, wherein a primary part includes primary-part coils in the linear-motor-based system, the secondary part has a magnetic active part and the primary-part coils can be actuated via a drive current such that an advancing force acting on the secondary part and movement of the secondary part along the primary part is achievable, where at least one secondary-part winding in a circuit is provided on the secondary part, selected primary-part coils are energized via a primary current at one or more test signal frequencies to induce a secondary current in the secondary-part winding to identify the rotor, a characteristic property of the secondary-part winding or the circuit is representative of the secondary part, and where the secondary current influences a current response of the primary-part coils and the characteristic property is measured using the current response.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.