System and method for testing an ignition device
First Claim
1. A method for testing an ignition device for a pyrotechnic occupant protection device, comprising:
- discharging an ignition voltage source of the ignition device through an ignition unit when an ignition signal is applied to an ignition switch; and
applying test signals to the ignition switch for a predetermined time duration.
2 Assignments
0 Petitions
Accused Products
Abstract
The invention relates to an ignition device for a pyrotechnic occupant protective system which contains an ignition unit (18), an ignition switch (20) and an electronic unit (4). A voltage output (14) of the electronic unit (4) can be charged via an external supply line (10) up to a predetermined ignition voltage. The ignition switch (20) can be closed by a signal, which can be generated on the control output, so that the ignition voltage is discharged while passing through the ignition unit (18). The electronic unit (4) can be controlled in such a manner that test signals of a predeterminable duration can be generated on the control output (22) and the function of the ignition unit can be tested by using these test signals.
3 Citations
15 Claims
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1. A method for testing an ignition device for a pyrotechnic occupant protection device, comprising:
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discharging an ignition voltage source of the ignition device through an ignition unit when an ignition signal is applied to an ignition switch; and
applying test signals to the ignition switch for a predetermined time duration.
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2. An ignition device for a pyrotechnic occupant protection device, comprising:
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an ignition unit;
an ignition switch; and
an electronics unit having an input for connection to an external supply line, a voltage output for connection to the ignition unit, and a control output for connection to the ignition switch, wherein the voltage output is configured to be charged to a predetermined ignition voltage via the supply line, which predetermined ignition voltage is discharged through the ignition unit when an ignition signal is applied to the control output, and switching the ignition switch in a corresponding manner, and the electronics unit is configured to be driven such that test signals with a predetermined time duration are produced at the control output. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification