Method and apparatus for driving firing circuits for restraint means
2000
Apparatus for driving firing circuits for restraint means in a motor vehicle, the device comprising a processor (1), a firing circuit driving system (2) and output stages (5, 7) for each firing means (6), the firing circuit driving system (2) means (13) for evaluating control commands and means (16, 17) for operating the output stages (5, 7), wherein an energy reserve (8) for operating the firing circuits (6) that the output stages (5, 7) and the ignition means (6 ) which is present, wherein the processor (1) during a collision of the motor vehicle, the output stages (5, 7) releases for triggering the restraining means, wherein a safety IC (40) for enabling the output stages (5, 7) during an impact is present, the safety IC (40) includes means for detecting impacts, characterized in that the firing circuit driving system (2) means (18) for measuring the firing currents, means (13) for error handling of control commands, means (20) of the measurement energy reserve voltage and for switching over between continuous and pulsed modes for the output stages (5, 7) and each ...
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