The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 04, 1997
Filed:
May. 12, 1995
Armin Egger, Bad Homburg, DE;
VDO Adolf Schindling AG, Frankfurt, DE;
Abstract
A process and a system for controlling a windshield wiper, in particular on a motor vehicle, employs a sensor which recognizes the intensity of the rain. The sensor gives off a signal whereby the windshield wiper is automatically controlled as a function of the intensity of the rain. A variation in the signal of the sensor is effected by random signals produced by the continuous movements of drops of water, and serves as measure for the intensity of the rain. In order to assure an optimal and reliable control of the windshield wiper as a function of the intensity of the rain, there is a monitoring of the time between a first sudden change of the signal and a second sudden change. When the time exceeds a given value, the windshield wiper is controlled as a function of at least an earlier one of the sudden changes in the sensor signal which precedes the aforementioned first sudden change.