Method of controlling a windshield wiper system
US5276389A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 10, 1992 |
| Grant date | Jan 4, 1994 |
| Priority date | — |
| Expiry date | Dec 10, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S388/916
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method for controlling a vehicular windshield wiping system, the wiping system being controlled in response to recognition of a particular rain pattern, and being capable of distinguishing between the presence of moisture and dirt on the windshield. The wiping system is also controlled according to a plurality of operating thresholds established to ensure smooth operation of the wiping system during varying conditions, and is controlled according an amplification autoranging strategy to ensure the wiping system functions properly independent of certain conditions, such as the type of windshield on the vehicle. The wiping system includes at least one wiper blade, and a sensor mounted to the windshield for monitoring a portion of the windshield. The sensor generates a signal having a value which varies as both moisture and dirt collect on the monitored portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.