Method and device for determining the position of an object in relation to a vehicle, in particular a motor vehicle, for use in a driver assistance system of the vehicle

US8942065B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Dirk Schmid · Simmozheim, DE
• Michael Schumann · Stuttgart, DE

Key dates

• Filing date: Apr 26, 2011
• Grant date: Jan 27, 2015
• Expiry date: Oct 11, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S367/909
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

In a method and a device for determining the position of an object in relation to a vehicle, for use in a driver assistance system of the vehicle, a first ultrasound pulse is transmitted by an ultrasound sensor situated on the vehicle, the ultrasound pulse including multiple predefined transmission frequencies which result in a variation of the directional characteristic of the ultrasound sensor. The transmitted first ultrasound pulse is reflected on the object and is received again as a first echo pulse. A frequency spectrum of the first echo pulse is subsequently determined, and a first absolute value of a relative offset angle of the object is determined as a function of the frequency spectrum of the first echo pulse and the directional characteristics.