Device for protecting an optical sensor of a driving assistance system for a motor vehicle
US11285921B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2019 |
| Grant date | Mar 29, 2022 |
| Priority date | — |
| Expiry date | Jul 7, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2011/004
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A device for protecting an optical sensor of a driver assistance system for a motor vehicle includes a protective casing, a motor, and a pressure balancing system. The protective device has a movable part and a fixed part. The protective casing forms a cavity that accommodates an optical sensor that includes an optical surface. Additionally, the protective casing freely rotates about an axis and includes an optical element that faces the optical surface of the optical sensor. The motor rotates the protective casing at speeds allowing the optical element to be cleaned by a centrifugal effect. The pressure balancing system includes an air vent orifice allowing fluid communication between the inside and the outside of the protective device. The air vent orifice is produced in the fixed part of the protective device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.