Device for controlling firing circuits for restraining devices

Electrical transmission or interconnection systems – Vehicle mounted systems

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C307S010100, C701S045000

Reexamination Certificate

active

06803673

ABSTRACT:

FIELD OF THE INVENTION
The present invention is directed to a device for controlling ignition circuits for restraining devices.
BACKGROUND INFORMATION
Firing controls which are designed to work on integrated circuits (IC) are supplemented with additional external hardware for switching off individual igniter groups, such as the igniter dedicated to the front-seat passenger. An example of such additional hardware is MOSFET switches, which are then logically linked with one another.
SUMMARY OF THE INVENTION
The device according to the present invention for controlling firing circuits for restraining devices has the advantage that no additional external hardware is necessary; rather, the freely programmable blocking of groups of igniters is possible by the use of internal components of the firing circuit control.
It is especially advantageous that the processor can read out the blocking registers in order to conduct an error analysis of these components of the firing circuit control.
It is further of advantage that, after setting the blocking register, the processor blocks the blocking register to further changes during operation, so that a possibly defective processor has no influence by the arbitrary setting of the blocking register to the activation and blocking of the igniters, that is, the firing circuits.
In addition, it is of advantage that the processor checks the blocking inputs, the blocking register and the logical linkages when the device according to the present invention is switched on. This ensures that the group-wise blocking of igniters is properly carried out. The blocking inputs are checked by the processor via the safety (reliability) IC.
Lastly, it is also of advantage that the firing circuit control has blocking inputs for blocking the plus and minus output stages, so that, thus, all output stages can be blocked.


REFERENCES:
patent: 5899949 (1999-05-01), Kincaid
patent: 42 37 404 (1994-05-01), None
patent: 196 60 290 (1997-04-01), None
patent: 196 46 387 (1998-05-01), None
patent: 197 43 914 (1998-11-01), None
patent: 198 13 953 (1999-07-01), None
patent: 199 18 634 (2000-11-01), None
patent: 842 824 (1998-05-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Device for controlling firing circuits for restraining devices does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device for controlling firing circuits for restraining devices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for controlling firing circuits for restraining devices will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3296555

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.