Configuration for controlling a restraining device, in particular for a motor vehicle
First Claim
Patent Images
1. A configuration for controlling a restraining device, comprising:
- an acceleration sensor for sensing acceleration and generating an acceleration signal;
a first control unit receiving and processing said acceleration signal or a signal dependent on said acceleration signal;
an energy source;
a firing circuit connected to said energy source, said firing circuit including;
a common carrier;
a first electrically controllable power switch disposed on said common carrier;
a firing element associated with a restraining device and disposed in series with said first electrically controllable power switch;
a second electrically controllable power switch disposed on said common carrier and in series with said firing element, said first control unit controlling both said first electrically controllable power switch and said second electrically controllable power switch; and
a third electrically controllable power switch disposed apart from said common carrier and connected in series with said second electrically controllable power switch;
a second control unit controlling said third electrically controllable power switch in dependence on the acceleration; and
said energy source energizing said firing element if said first, second and third electrically controllable power switches are switched on.
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Abstract
A configuration for controlling a restraining device has a first control unit which controls two electrically controllable power switches of a firing circuit connected to the restraining device as a function of acceleration. A third electrically controllable power switch is provided in the firing circuit and is controlled by a second control unit as a function of the acceleration.
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Citations
16 Claims
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1. A configuration for controlling a restraining device, comprising:
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an acceleration sensor for sensing acceleration and generating an acceleration signal; a first control unit receiving and processing said acceleration signal or a signal dependent on said acceleration signal; an energy source; a firing circuit connected to said energy source, said firing circuit including; a common carrier; a first electrically controllable power switch disposed on said common carrier; a firing element associated with a restraining device and disposed in series with said first electrically controllable power switch; a second electrically controllable power switch disposed on said common carrier and in series with said firing element, said first control unit controlling both said first electrically controllable power switch and said second electrically controllable power switch; and a third electrically controllable power switch disposed apart from said common carrier and connected in series with said second electrically controllable power switch; a second control unit controlling said third electrically controllable power switch in dependence on the acceleration; and said energy source energizing said firing element if said first, second and third electrically controllable power switches are switched on. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A configuration for controlling a restraining device in a motor vehicle, comprising:
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an acceleration sensor for sensing acceleration and generating an acceleration signal; a first control unit receiving and processing said acceleration signal or a signal dependent on said acceleration signal; an energy source; a firing circuit connected to said energy source, said firing circuit including; a common carrier; a first electrically controllable power switch disposed on said common carrier; a firing element associated with a restraining device and disposed in series with said first electrically controllable power switch; a second electrically controllable power switch disposed on said common carrier and in series with said firing element, said first control unit controlling both said first electrically controllable power switch and said second electrically controllable power switch; and a third electrically controllable power switch disposed apart from said common carrier and connected in series with said second electrically controllable power switch; a second control unit controlling said third electrically controllable power switch in dependence on the acceleration; and said energy source energizing said firing element if said first, second and third electrically controllable power switches are switched on.
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Specification