Device for measuring the water covering under the tires of a vehicle in motion and the road by means of an alternating electric field.

摘要

The invention relates to an apparatus for detecting hydroplaning, ie a wedge of water forming under one or more tires of a vehicle, whereby the static friction of the vehicle between the tire and road is hereby repealed. The device operates by the process of Dielektrikumsänderung by water in a in the outer jacket (2b) of a tire built-in unfolded measuring capacitor (2f, 2h). From the measured water level findings regarding the maximum speed can be derived, with which the vehicle is still allowed to move.