Patent · US Expired

Impact detection device, in particular for a motor vehicle

US6282941A · kind A · utility

9Cited by

3References

16Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventor

Gerhard Mader · Thalmässing, DE

Key dates

Filing date	Dec 28, 1998
Grant date	Sep 4, 2001
Priority date	—
Expiry date	Dec 28, 2018

Classification

Technology area (CPC G)Physics
CPC primaryG01P21/00
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An impact detection device, in particular for a motor vehicle, includes at least one micromechanical acceleration switch having a contact element to be moved as a function of acceleration and a counter-contact element. A first voltage is fed to terminals of the contact elements by a monitoring circuit in order to detect an impact. A second voltage, through which the contact is closed on the basis of electrostatic forces of attraction, is fed in order to test the acceleration switch.

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