摘要:
A restraint system having a restraint device for protecting at least one passenger and a method for controlling a restraint system. The system and method act so as to to transform using a wavelet transformation, a signal measured by an acceleration sensor into a frequency range and in order to determine from the transformed signal the optimal triggering time point for the restraint device. For this purpose, the wavelet-transformed signal, on the one hand, is used for determining features in order to determine a crash type, and, on the other hand, to determine the braking acceleration energy. If the braking acceleration energy lies above a preestablished threshold value and if the identified crash type requires a triggering of the restraint system, then the restraint system is triggered.
摘要:
A method for triggering restraint devices in which at least one collision-indicating signal is generated. From the moment that a collision is detected, temporally defined crash phases are specified, and, for every crash phase, a crash type and a crash severity are determined from the signal. The appropriate restraint devices are triggered as a function of the crash severity and/or the crash type.
摘要:
A device for vehicle occupant protection. A processor connectable to at least two sensors may execute a deployment algorithm, and, in response to a failure of at least one of the sensors, may alter a sequence of execution of the deployment algorithm according to a point in time of the failure.
摘要:
A system for sensing a head-on collision in a vehicle, where at least one upfront sensor is used as plausibility sensor, which provides a plausibility signal for a collision sensor located in the control device. The upfront sensor may be an acceleration sensor, which analyzes both the acceleration signal as well as the speed signal derived therefrom for a plausibility check. The results of this check are linked in an OR-operation in order to generate a plausibility signal. In an example embodiment, it is provided to buffer-store the plausibility signal in the control device for a predetermined time. This is of special interest for improved reliability in the event that the upfront sensor has been destroyed.
摘要:
A method for triggering a restraining device in a motor vehicle is proposed, where a crash severity and an occupant categorization are implemented independently of each other. By linking the crash severity with the occupant categorization, the restraining device required for the vehicle occupants is triggered. The crash severity is subdivided in accordance with the triggering events frontal impact, side impact, rear impact or vehicle roll-over. A decisive advantage is that the crash severity is implemented independently of the occupant categorization.
摘要:
A method for triggering restraint devices in which at least one collision-indicating signal is generated. From the moment that a collision is detected, temporally defined crash phases are specified, and, for every crash phase, a crash type and a crash severity are determined from the signal. The appropriate restraint devices are triggered as a function of the crash severity and/or the crash type.
摘要:
A method of classifying an obstacle on the basis of pre-crash sensor signals is described, acceleration and acceleration change being determined from the obstacle velocity, and the obstacle is classified on the basis of these parameters. The deployment algorithm is tightened as a function of this classification; if appropriate, restraining means are deployed at an early stage and an automatic braking and/or steering intervention takes place.
摘要:
A device for activating personal protection devices activates the personal protection devices as a function of a delay between a first signal from an impact sensor system situated in the vehicle front and a second signal from a centrally located acceleration sensor system, the first and second signals each identifying an impact.
摘要:
A method for determining the trigger time for restraint means in a vehicle is provided, where, by forming two time windows for the speed reduction in a crash, the slope of the speed reduction in the respective time windows and the position of the time windows are determined. In this manner, an exact determination of the trigger time in conjunction with a crash time and the crash speed may be achieved, which are ascertained with the aid of a pre-crash sensory system.
摘要:
A device for activating personal protection devices activates the personal protection devices as a function of a delay between a first signal from an impact sensor system situated in the vehicle front and a second signal from a centrally located acceleration sensor system, the first and second signals each identifying an impact.