Method and control device for triggering passenger protection means for a vehicle
First Claim
1. A method for triggering a passenger protection device for a vehicle by a processor 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:
- ascertaining, by the processor a state of rotation as a function of a roll rate and a roll angle;
ascertaining a state of adhesion as a function of a vehicle transverse acceleration and a vehicle vertical acceleration; and
detecting, as a function of the state of rotation and the state of adhesion, a rollover event only if the adhesion is greater than a static stability factor;
generating a triggering signal as a function of the rollover event; and
triggering the passenger protection device as a function of the triggering signal.
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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.
10 Citations
10 Claims
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1. A method for triggering a passenger protection device for a vehicle by a processor 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, by the processor a state of rotation as a function of a roll rate and a roll angle; ascertaining a state of adhesion as a function of a vehicle transverse acceleration and a vehicle vertical acceleration; and detecting, as a function of the state of rotation and the state of adhesion, a rollover event only if the adhesion is greater than a static stability factor; generating a triggering signal as a function of the rollover event; and triggering the passenger protection device as a function of the triggering signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. 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 mad of the state of rotation, detects a rollover event only if an adhesion is 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 (9, 10)
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Specification