Patent · US Active

Method for detecting a wet road

US9272676B2 · kind B2 · utility

21Cited by

1References

9Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Thomas Heger · Vinningen, DE
Michael Helmle · Eßlingen, DE

Key dates

Filing date	Dec 2, 2011
Grant date	Mar 1, 2016
Priority date	—
Expiry date	Jul 11, 2032

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60Q2300/312
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

Methods in a driver assistance system of a vehicle for detecting wetness on a road surface as well as a corresponding driver assistance system having a rearview camera are described. The method may include the following: recording an image of an area located behind the rear end of the vehicle, using the rearview camera; evaluating the recorded image for the presence of a spray trail caused by the vehicle; and selectively outputting, based on the evaluation, a wetness signal for triggering an automatic response by the driver assistance system to the wet road surface.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.