US 7,603,950 B2 · Device for impact detection

Abstract

A piezo cable is provided as an impact sensor, which allows up to four different measuring principles. In addition to the piezoelectric measurement, which causes a piezoelectric pulse in an impact, a capacitive measurement, an inductive measurement and a resistance measurement are possible.

Claims13

Dependent claims

A device for impact detection comprising:

at least one piezo cable, wherein the piezo cable is configured such that the device detects a capacitance change by an impact object with the aid of the piezo cable, and wherein the device is configured to characterize the relative static permittivity of the impact object based on the capacitance change.

Dependencies are inferred from the claim text.

Facts

Application

10/556,838Filed 13 Mar 2004

Priority

DE 103 21 16012 May 2003

Published

US 2007/0157700 A112 Jul 2007

Granted

20 Oct 2009

Term ends

Not estimatedThe source records don’t support an estimate.

Classification5 codes

B60R 21/013
Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending…:…
B60R 21/0136
Including means for detecting collisions, impending collisions or roll-over: responsive to actual contact with an obstacle , e.g. to vehicle…
B60R 21/34
Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic…
B60R 2021/01345
Responsive to imminent contact with an obstacle , e.g. using radar systems: using mechanical sensing means

Abstract

Claims13

Dependent claims

A device for impact detection comprising:

at least one piezo cable, wherein the piezo cable is configured such that the device detects a capacitance change by an impact object with the aid of the piezo cable, and wherein the device is configured to characterize the relative static permittivity of the impact object based on the capacitance change.

Dependencies are inferred from the claim text.

Facts

Application

10/556,838Filed 13 Mar 2004

Priority

DE 103 21 16012 May 2003

Published

US 2007/0157700 A112 Jul 2007

Granted

20 Oct 2009

Term ends

Not estimatedThe source records don’t support an estimate.

Classification5 codes

B60R 21/013
Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending…:…
B60R 21/0136
Including means for detecting collisions, impending collisions or roll-over: responsive to actual contact with an obstacle , e.g. to vehicle…
B60R 21/34
Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic…
B60R 2021/01345
Responsive to imminent contact with an obstacle , e.g. using radar systems: using mechanical sensing means

Device for impact detection

Life of this patent

Abstract

Claims13

Device for impact detection

Life of this patent

Abstract

Claims13