Restraint system for a motor vehicle
First Claim
1. A restraint system for a motor vehicle comprising:
- sensors for detecting a collision of the motor vehicle;
a control unit for analyzing signals of the sensors, which, when recognizing a collision of the motor vehicle, transmits a first signal to a first restraint device comprising a safety belt restraint device that activates a belt tensioner using a predefined first restraint force, and subsequently transmits a second signal to a second restraint device comprising a front airbag system that triggers a front airbag; and
a malfunction monitoring unit for determining correct functioning of at least one of the restraint devices, wherein in the event a malfunction of the front airbag system is recognized by the malfunction monitoring unit after recognizing the collision, the control unit, following transmission of the first and second signals, transmits a third signal to the first restraint device that activates a replacement actuator.
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Accused Products
Abstract
A restraint system for a vehicle having sensors for detecting a collision of the vehicle is described. The system has a control unit which analyzes the signals and, in the event of a recognized collision of the motor vehicle, transmits a first signal to a safety belt restraint, which then activates a belt tensioner using a predefined first restraint force, and subsequently transmits a second signal to a front airbag system, which then triggers an airbag. The system has a malfunction monitoring unit for one of the restraint devices such that the control unit transmits a third signal to a replacement restraint device in the event that a malfunction of the front airbag system is recognized by the malfunction monitoring unit.
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Citations
20 Claims
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1. A restraint system for a motor vehicle comprising:
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sensors for detecting a collision of the motor vehicle; a control unit for analyzing signals of the sensors, which, when recognizing a collision of the motor vehicle, transmits a first signal to a first restraint device comprising a safety belt restraint device that activates a belt tensioner using a predefined first restraint force, and subsequently transmits a second signal to a second restraint device comprising a front airbag system that triggers a front airbag; and a malfunction monitoring unit for determining correct functioning of at least one of the restraint devices, wherein in the event a malfunction of the front airbag system is recognized by the malfunction monitoring unit after recognizing the collision, the control unit, following transmission of the first and second signals, transmits a third signal to the first restraint device that activates a replacement actuator. - View Dependent Claims (2, 3, 4, 5)
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6. A vehicle occupant restraint system, comprising:
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a control unit operatively connected to vehicle sensors for recognizing from vehicle sensors signals a collision of the vehicle; a first restraint device for restraining the occupant in response to a first signal of the control unit, the first signal being generated when recognizing the collision; a second restraint device for restraining the occupant in response to a second signal of the control unit, the second signal being generated after the first signal; and a replacement actuator of the first restraint device for restraining the occupant in response to a third signal of the control unit, the third signal being generated, following transmission of the first and second signals, upon determining a failure of one of the first and second restraint devices after recognition of the collision. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of restraining an occupant of a vehicle, the method comprising the acts of:
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recognizing in a control unit a vehicle collision; upon recognizing the vehicle collision, generating a first signal in the control unit causing a first restraint device to restrain the occupant; generating a second signal in the control unit causing a second restraint device to restrain the occupant, after a predefined time delay; determining in a malfunction monitoring unit whether a failure of the second restraint system occurred, after recognition of the vehicle collision; and if the failure occurred, generating a third signal in the control unit, after generation of the first and second signals, causing a replacement actuator of the first restraint device to restrain the occupant. - View Dependent Claims (17, 18, 19, 20)
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Specification