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US 9,539,972 B2Granted
Method and device for operating a trigger device for occupant protection means
AssigneeRobert Bosch GmbH
InventorStefan Balz
Life of this patent
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Abstract
A method for operating a trigger device for an occupant protection unit includes: activating a first switch (high side) of the trigger device for occupant protection units; activating a second switch (low side) of the trigger device for occupant protection units; detecting an output voltage at the second switch (low side); and deactivating the second switch (low side) as a function of the output voltage.
Claims11
A method for operating a trigger device for an occupant protection unit, comprising:
- activating a first switch of the trigger device and a second switch of the trigger device for triggering purposes to connect at least one trigger element to a voltage supply;
- detecting an output voltage at the second switch;
- and
- deactivating the second switch as a function of the output voltage;
- wherein the trigger device is configured to trigger activation of the occupant protection unit.
2 more elements
A device for triggering an occupant protection unit, comprising:
- a short-circuit detection unit for recognizing a short circuit to a supply voltage;
- a first switch and a second switch provided for triggering the occupant protection unit;
- and
- a voltage detection unit for detecting an output voltage at the second switch, wherein the second switch is deactivated as a function of the output voltage at the second switch;
- wherein the device is configured to trigger activation of the occupant protection unit.
2 more elements
Dependencies are inferred from the claim text.