EP 1216167 A1 20020626 - CONTROLLER FOR PASSENGER PROTECTION MEANS
Title (en)
CONTROLLER FOR PASSENGER PROTECTION MEANS
Title (de)
STEUERVORRICHTUNG FÜR EIN INSASSENSCHUTZMITTEL
Title (fr)
CONTROLEUR POUR LA PROTECTION DES PASSAGERS
Publication
Application
Priority
- DE 0003350 W 20000926
- DE 19947096 A 19990930
- DE 10002375 A 20000120
Abstract (en)
[origin: US2002121810A1] A vehicle occupant protection device having a firing cap for activating the vehicle occupant protection device is controlled with a control device. An energy source provides a supply voltage for the firing cap. A switching transistor connects the firing cap to the energy source. A controlled path of the switching transistor, the energy source, and the firing cap are connected in series with respect to one another. An actuation or control circuit is connected upstream of a control terminal of the switching transistor and controls the switching transistor in such a way that a resistance of the controlled path in the switched-on state of the transistor is kept constant, a signal which is present at the control terminal at that time is evaluated, an energy which is converted in the switching transistor is determined from the signal at the control terminal and, when a predefined energy limiting value is reached, the switching transistor is switched off.
IPC 1-7
IPC 8 full level
B60R 21/13 (2006.01); B60R 21/01 (2006.01); B60R 21/16 (2006.01); B60R 22/46 (2006.01); H03K 17/687 (2006.01); H03K 17/08 (2006.01)
CPC (source: EP US)
B60R 21/017 (2013.01 - EP US); B60R 2021/01034 (2013.01 - EP US); H03K 2017/0806 (2013.01 - EP US)
Citation (search report)
See references of WO 0123218A1
Designated contracting state (EPC)
DE ES FR GB IT SE
DOCDB simple family (publication)
US 2002121810 A1 20020905; EP 1216167 A1 20020626; JP 2003510213 A 20030318; WO 0123218 A1 20010405
DOCDB simple family (application)
US 11316102 A 20020401; DE 0003350 W 20000926; EP 00971257 A 20000926; JP 2001526392 A 20000926