Automatic device for actuation of components to clean a motor vehicle window
First Claim
1. An automatic device for actuating elements for cleaning motor vehicle glass, comprising two photosensitive elements placed on the glass to be cleaned so that they are influenced by the light going through said glass, the first photosensitive element being positioned ro receive light directly through the glass, the second photosensitive element being isolated from any direct light transmitted through the glass and influenced only by the light transmitted through the inside of said glas, said device further comprising an electronic circuit to receive and compare the responses of said photosensitive elements and means to control the cleaning compoents automatically when the difference in response of said photosensitive elements exceeds a certain threshold.
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Accused Products
Abstract
An automatic device for actuation of components for cleaning motor vehicle glass which includes a system for detection of the dirtiness of the glass, made up of a measuring photosensitive element receiving light directly through the glass and a reference photosensitive element isolated from any direct light and influenced only by the light transmitted through the interior of the glassing and an electronic circuit to receive and compare the responses of the two photosensitive elements and means to control the cleaning components automatically when the difference is response of these elements exceeds a certain threshold.
39 Citations
13 Claims
- 1. An automatic device for actuating elements for cleaning motor vehicle glass, comprising two photosensitive elements placed on the glass to be cleaned so that they are influenced by the light going through said glass, the first photosensitive element being positioned ro receive light directly through the glass, the second photosensitive element being isolated from any direct light transmitted through the glass and influenced only by the light transmitted through the inside of said glas, said device further comprising an electronic circuit to receive and compare the responses of said photosensitive elements and means to control the cleaning compoents automatically when the difference in response of said photosensitive elements exceeds a certain threshold.
Specification