Opening/closing member driving device
US10815714B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 12, 2017 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | Oct 12, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H7/0851
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An opening/closing member driving device includes a motor that opens and closes an opening/closing member and a controller configured to perform an abnormality determination process and a masking process. The abnormality determination process determines occurrence of a foreign object being entrapped or caught by comparing driving information corresponding to a driving status of the motor to a predetermined threshold value. The masking process invalidates the abnormality determination process over a predetermined masking period when the motor is activated. The controller includes a correction unit. The correction unit corrects at least one of the masking period or the threshold value when the motor is activated in a direction opposite to that of a preceding operation in a state in which the opening/closing member is in a high-load range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.