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US 5,598,146 AGranted
Rain sensor
AssigneeVDO Adolf Schindling AG
InventorHans-Joachim Schroder
Life of this patent
Estimating the term…
Abstract
A rain sensor which is arranged on the outside of the windshield of a motor vehicle in a region which can be passed over by a windshield wiper and has at least one conductive track which is connected to an electric potential within the motor vehicle. A loop resistance of the conductive track (1, 2) is measured for the electrical detection of a tear.
Claims8
A rain sensor located on the outside of the windshield of a motor vehicle in a region passed over by a windshield wiper, the sensor comprising:
- at least one conductive track which is connected to an electric potential within the motor vehicle,
- wherein said at least one conductive track configured as a loop to permit measurement of a loop resistance of the conductive track for an electrical detection of a tear in said at least one conductive track.
Dependencies are inferred from the claim text.