METHOD AND CONTROL DEVICE FOR TRIGGERING PASSENGER PROTECTION MEANS FOR A VEHICLE
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Accused Products
Abstract
A method and a control device for triggering passenger protection devices for a vehicle are provided, a rollover event causing the triggering of the passenger protection devices. The rollover event is detected as a function of kinematic and rotation variables, an adhesion, and a static stability factor. A state of rotation is ascertained via a rotation rate and a rotation angle. A state of adhesion is ascertained from a vehicle transverse acceleration and a vehicle vertical acceleration. The rollover event is detected via the state of adhesion and the state of rotation, the adhesion being much greater than the static stability factor.
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Citations
20 Claims
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1-10. -10. (canceled)
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11. A method for triggering a passenger protection device for a vehicle as a function of a rollover event which is detected as a function of rotation and kinematic variables of an adhesion and a static stability factor, comprising:
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ascertaining a state of rotation via a roll rate and a roll angle; ascertaining a state of adhesion from a vehicle transverse acceleration and a vehicle vertical acceleration; and detecting, via the state of rotation and the state of adhesion, a rollover event when the adhesion is much greater than a static stability factor. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A control device for triggering a passenger protection device for a vehicle, comprising:
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an interface that provides a vehicle transverse acceleration, a vehicle vertical acceleration, a roll rate and a roll angle; an evaluation circuit including a state of adhesion module that ascertains a state of adhesion as a function of the vehicle transverse acceleration and the vehicle vertical acceleration, a state of rotation module that ascertains a state of rotation as a function of the roll rate and the roll angle, a fusion module that, as a function of the state of adhesion and of the state of rotation, detects a rollover event only if an adhesion is much greater than a static stability factor, and a triggering module that generates a triggering signal as a function of the rollover event; and a triggering circuit that triggers the passenger protection device as a function of the triggering signal. - View Dependent Claims (19, 20)
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Specification