Patent · US Active

Method for operating an ultrasonic sensor of a driver assistance system in a motor vehicle, driver assistance system, and motor vehicle

US9702974B2 · kind B2 · utility

1Cited by

9References

10Claims

0Family size

Assignee

VALEO SCHALTER UND SENSOREN GMBH · DE

Inventors

Michael Hallek · Cologne, DE
Dietmar Gruedl · Asperg, DE
Anton Lill · Lauffen am Neckar, DE
Heinrich Gotzig · Heilbronn, DE

Key dates

Filing date	Jul 20, 2011
Grant date	Jul 11, 2017
Priority date	—
Expiry date	Feb 13, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG01S2015/938
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention relates to a method for operating at least one ultrasonic sensor (4, 6) of a driver assistance system (2) in a motor vehicle (1), wherein an output sound signal (SA) of the ultrasonic sensor (4, 6) is modulated in accordance with a type of modulation and by means of this modulation, a specific codeword is impressed on the output sound signal (SA). For at least two mutually different functionalities (8 to 12) of the driver assistance system (2), different types of modulation are in each case used for the modulation of the output sound signal (SA) and/or in each case different lengths of the codeword.

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