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    • 10. 发明专利
    • DE50106922D1
    • 2005-09-01
    • DE50106922
    • 2001-11-22
    • BOSCH GMBH ROBERT
    • ROELLEKE MICHAEL
    • B60R21/01B60R21/0134B60R21/16B60R22/46
    • A method is described of triggering restraint means in a motor vehicle in the event of an impact and/or a collision with an object, in which the triggering of restraint means, such as airbags and seatbelt tighteners, is better adapted to the concrete impact situation and, in particular, unnecessary triggering of restraint means may be avoided. In the context of this method, the time characteristic of the acceleration is detected in the form of at least one acceleration signal ax. The time characteristic of a velocity DELTAvx is generated from the acceleration signal ax. A threshold value DELTAvxth for the velocity DELTAvx is then determined as a triggering criterion. For this purpose, the impact velocity vclose and the instant of impact t0 are established with the aid of a pre-crash sensor system even before the impact. The impact situation is classified with reference to the impact velocity vclose. With the aid of the classification of the impact situation, a triggering time window [tA . . . tB] is determined, in which the time characteristic of the velocity DELTAvx is generated and, in parallel to this, the threshold value DELTAvxth for the velocity DELTAvx is established from the acceleration signal ax, the classification of the impact situation being taken into consideration.