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US 7,054,722 B2Granted
Device for reliable signal generation
AssigneeRobert Bosch GmbH
InventorsLambros Dalakuras, Michael Schumpelt, Juergen Hirt
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Abstract
A device for reliably generating signals in a motor vehicle, having a control arrangement which is supplied at least one control signal, the control arrangement generating a trigger signal as a function of the control signal in order to trigger at least one switching element or driver. The control arrangement includes an emergency-operating arrangement which, in an emergency operation, generates the trigger signal as a function of at least the one control signal, a testing arrangement being provided, which tests the operativeness of the emergency-operating arrangement by selective triggering.
Claims5
A device for reliably generating a signal in a motor vehicle, comprising:
- at least one switching element;
- at least one first control arrangement which is supplied at least one control signal, the at least one first control arrangement generating at least one trigger signal as a function of the at least one control signal in order to trigger the at least one switching element;
- an emergency-operating arrangement, which, in an emergency operation, generates the at least one trigger signal as a function of the at least one control signal;
- and
- a testing arrangement which tests an operativeness of the emergency-operating arrangement by selective triggering the emergency operating arrangement, wherein the emergency-operating arrangement is one of activated and deactivated in response to an edge change of the at least one control signal, wherein the emergency-operating arrangement is one of first activated and first deactivated for a specifiable time span after a defined time span has elapsed with respect to the edge change of the at least one control signal.
2 more elements
A device for reliably generating a signal in a motor vehicle, comprising:
- at least one switching element;
- at least one first control arrangement which is supplied at least one control signal, the at least one first control arrangement generating at least one trigger signal as a function of the at least one control signal in order to trigger the at least one switching element;
- an emergency-operating arrangement, which, in an emergency operation, generates the at least one trigger signal as a function of the at least one control signal;
- and
- a testing arrangement which tests an operativeness of the emergency-operating arrangement by selective triggering the emergency operating arrangement, wherein the emergency-operating arrangement includes at least one two-way switch for relaying one of an output signal of the control arrangement and the at least one control signal.
2 more elements
A device for reliably generating a signal in a motor vehicle, comprising:
- at least one switching element;
- at least one first control arrangement which is supplied at least one control signal, the at least one first control arrangement generating at least one trigger signal as a function of the at least one control signal in order to trigger the at least one switching element;
- an emergency-operating arrangement, which, in an emergency operation, generates the at least one trigger signal as a function of the at least one control signal;
- and
- a testing arrangement which tests an operativeness of the emergency-operating arrangement by selective triggering the emergency operating arrangement, wherein a fault of the emergency-operating arrangement is detected using at least one check-back signal, and wherein a measure of a current controlled by the at least one switching element is used as the at least one check-back signal.
2 more elements
A device for reliably generating a signal in a motor vehicle, comprising:
- at least one switching element;
- at least one first control arrangement which is supplied at least one control signal, the at least one first control arrangement generating at least one trigger signal as a function of the at least one control signal in order to trigger the at least one switching element;
- an emergency-operating arrangement, which, in an emergency operation, generates the at least one trigger signal as a function of the at least one control signal;
- and
- a testing arrangement which tests an operativeness of the emergency-operating arrangement by selective triggering the emergency operating arrangement, wherein a fault of the emergency-operating arrangement is detected using at least one check-back signal, and wherein, in order to detect a fault of the emergency-operating arrangement, the testing arrangement compares a nominal state specified by the at least one control signal to an actual state derived with the aid of the at least one check-back signal.
2 more elements
A device for reliably generating a signal in a motor vehicle, comprising:
- at least one switching element;
- at least one first control arrangement which is supplied at least one control signal, the at least one first control arrangement generating at least one trigger signal as a function of the at least one control signal in order to trigger the at least one switching element;
- an emergency-operating arrangement, which, in an emergency operation, generates the at least one trigger signal as a function of the at least one control signal;
- and
- a testing arrangement which tests an operativeness of the emergency-operating arrangement by selectively triggering the emergency operating arrangement, wherein the emergency-operating arrangement is one of first activated and first deactivated for a specifiable time span after a defined time span has elapsed with respect to an edge change of the at least one control signal.
2 more elements
Dependencies are inferred from the claim text.