Electronic safety device for vehicle occupants including a memory device for storing fault conditions and associated control commands
First Claim
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1. An electronic safety device for occupants of a vehicle including an acceleration-sensitive sensor and at least one inertial restraining device, the safety device comprising:
- a control unit coupled to the acceleration-sensitive sensor, the control unit including at least one microcomputer;
at least one output stage coupled to the control unit and controlling the at least one inertial restraining device, the at least one output stage including a squib; and
a memory device coupled to the at least one microcomputer, at least one fault condition of the electronic safety device and at least one associated control command being stored in the memory device, wherein the at least one inertial restraining device is activated in accordance with the at least one control command when the at least one fault condition occurs.
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Abstract
In an electronic safety device for vehicle occupants including an acceleration-sensitive sensor, a control unit, and a plurality of inertial restraining devices with associated output stages, a reliable operating mode is guaranteed for the safety device by storing characteristic fault conditions, together with control strategies compensating for these fault conditions. In the event of a fault, the safety device applies the respective, assigned control strategy to activate the restraining devices.
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Citations
19 Claims
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1. An electronic safety device for occupants of a vehicle including an acceleration-sensitive sensor and at least one inertial restraining device, the safety device comprising:
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a control unit coupled to the acceleration-sensitive sensor, the control unit including at least one microcomputer; at least one output stage coupled to the control unit and controlling the at least one inertial restraining device, the at least one output stage including a squib; and a memory device coupled to the at least one microcomputer, at least one fault condition of the electronic safety device and at least one associated control command being stored in the memory device, wherein the at least one inertial restraining device is activated in accordance with the at least one control command when the at least one fault condition occurs. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An electronic safety device for occupants of a vehicle including an acceleration-sensitive sensor and at least one inertial restraining device, the safety device comprising:
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a control unit coupled to the acceleration-sensitive sensor, the control unit including at least one microcomputer; and at least one output stage coupled to the control unit and controlling the at least one restraining device, the output stage including a plurality of first switching elements and a plurality of second switching elements, the plurality of first and second switching elements manufactured using integrated circuit technology, wherein each of the plurality of first and second switching elements assumes one of an ON-state and an OFF-state, a second transition resistance of each of the plurality of second switching elements being greater than a first transition resistance of each of the plurality of first switching elements. - View Dependent Claims (18, 19)
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Specification