Patent · US Expired

Device for side impact detection in a motor vehicle

US6732566B2 · kind B2 · utility

14Cited by

6References

3Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Michael Roelleke · Leonberg, DE
Pascal Kocher · Ottrott, FR
Rolf-Juergen Recknagel · Jena, DE
Rolf Aidam · Endingen am Kaiserstuhl, DE

Key dates

Filing date	Sep 9, 2002
Grant date	May 11, 2004
Priority date	—
Expiry date	Sep 9, 2022

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60R2021/0119
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A device for side impact detection in a motor vehicle, and a plausibility sensor side impact detection. This plausibility sensor is located in a loudspeaker which is already present in the lateral part for playback of music. This loudspeaker is used as a low-frequency microphone, a circuit being provided for the loudspeaker to differentiate between sound and rapid fluctuations in air pressure. This circuit has a bridge circuit, the differential voltage across the bridge then being used as a plausibility signal. The circuit itself is preferably located in the door.

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