Patent ID: 9291491
Filing Date: 2016-03-22
CPC Classification: G01F,G01S

Claim Text:
1. A wading detection system for a vehicle comprising: a plurality of parking sensors spaced apart from one another and disposed on at least one of a front or a rear of said vehicle, at least a first of said plurality of parking sensors operable as a sound wave pulse emitter device and at least a second of said plurality of parking sensors operable as a sound wave pulse receiver device said at least second of said plurality of parking sensors configured to receive sound pulses emitted by said at least first of said plurality of parking sensors; and an electronic controller comprising a memory and a processor configured to receive signals from said at least second of said plurality of parking sensors, said controller being configured to measure one or more of the following variables: (i) the time of flight of a sound pulse between said at least first and said at least second of said plurality of parking sensors; (ii) the amplitude of a sound pulse emitted by said at least first of said plurality of parking sensors when received by said at least second of said plurality of parking sensors; and (iii) the wavelength of a sound pulse emitted by said at least first of said plurality of parking sensors when received by said at least second of said plurality of parking sensors, wherein the electronic controller is configured to act upon one or more signals received from said at least second of said plurality of parking sensors to determine whether the medium between said at least first and said at least second of said plurality of parking sensors is air or liquid.