摘要:
An apparatus (10) for controlling a multistage actuatable occupant restraining system (14, 18) of a vehicle includes a crash sensor (32) sensing crash acceleration at a substantially central location of the vehicle. A crush zone accelerometer (40, 42) is provides a crush zone crash acceleration signal. A controller (50) a crash velocity value and a crash displacement value in response to the crash acceleration signal. A plurality a predetermined crash velocity as a function of crash displacement threshold maps (152-172) is provided, two of the plurality of threshold maps (170, 172) relating to a second stage (92, 96) of said multistage actuatable occupant restraining system. The selects one of the two threshold maps relating to the second stage of in response to the crush zone acceleration signal and controls second stage actuation in response to a comparison of the crash velocity signal against the selected one of the two threshold maps (170, 172). Improved misuse margins are also provided as well as deployment mappings based on symmetric and asymmetric crash detection.
摘要:
A vehicle occupant protection apparatus includes a headrest control unit for drive-controlling a headrest actuating mechanism. This control unit itself predicts that a vehicle behind is about to impact its own vehicle, and controls the headrest actuating mechanism to move a seat headrest forward and thereby reduce the size of the gap between the headrest and the neck of the occupant of the seat.
摘要:
An airbag restraint system for protecting a vehicle passenger located aside a driver in an automotive vehicle. The airbag restraint system is comprised of an airbag unit disposed inside an instrument panel in a passenger compartment. The airbag unit includes an airbag which is normally stored in its folded state and inflates to project through an opening of the instrument panel into the passenger compartment. When a vehicle collision occurs at a high vehicle speed over 30 km/h, the airbag inflates largely with a high gas pressure thereby effectively absorbing a relatively large kinetic energy of the passenger's body being thrown forward. When the vehicle collision occurs at a low vehicle speed not higher than 30 km/h, the airbag inflates not so largely with a lower gas pressure, thereby preventing the passenger from being pushed back rearward of the vehicle at a high acceleration.
摘要:
A method for activating personal protection means using at least one signal derived from an acceleration sensor. A forward displacement is determined from the signal, and the forward displacement is compared to at least one threshold value surface, which is set as a function of a velocity decrease and a deceleration. The personal protection means is activated as a function of the comparison.
摘要:
A method for crash type identification for a vehicle in which sensor data from the left vehicle side and from the right vehicle side are recorded and analyzed via at least two sensor units, as well as an associated device for crash type identification for a vehicle. The sensor data, recorded after an impact, are gated, at least one first gating of the recorded sensor data being checked for fulfillment of a stability criterion and, after meeting the stability criterion, at least one second gating of the recorded sensor data is compared with a predefined threshold value, a first criterion for an asymmetrical impact flag signal being recognized when the second gating of the recorded sensor data exceeds the predefined threshold value and/or falls short of the predefined threshold value.
摘要:
A device for triggering a restraining arrangement in a vehicle in which the vehicle velocity is taken into consideration in the triggering. In the system, the vehicle velocity is checked for plausibility by the signal from a remote sensor so as to avoid faulty triggering.
摘要:
A device for triggering restraining means in a vehicle in which the vehicle velocity is taken into consideration in the triggering. In the process, the vehicle velocity is checked for plausibility by the signal from a remote sensor so as to avoid faulty triggering.
摘要:
The implementation of dual-stage inflators in some production vehicles is quickly becoming a common reality. A dual-stage inflator has two firing squibs that can fire independently, simultaneously or in a delayed mode. This tailorability provides the ability to fire a low level, high level or staged delay level depending on the impact velocity or other means. For each restraint condition, the inflator output threshold speeds are identified. A biomechanical gray zone, for each injury assessment reference value, is defined based on occupant performance. The upper and lower bound of each biomechanical gray zone is associated with a type of occupant, inflator output, belt restraint and injury parameter.
摘要:
A method for crash type identification for a vehicle in which sensor data from the left vehicle side and from the right vehicle side are recorded and analyzed via at least two sensor units, as well as an associated device for crash type identification for a vehicle. The sensor data, recorded after an impact, are gated, at least one first gating of the recorded sensor data being checked for fulfillment of a stability criterion and, after meeting the stability criterion, at least one second gating of the recorded sensor data is compared with a predefined threshold value, a first criterion for an asymmetrical impact flag signal being recognized when the second gating of the recorded sensor data exceeds the predefined threshold value and/or falls short of the predefined threshold value.
摘要:
The implementation of dual-stage inflators in some production vehicles is quickly becoming a common reality. A dual-stage inflator has two firing squibs that can fire independently, simultaneously or in a delayed mode. This tailorability provides the ability to fire a low level, high level or staged delay level depending on the impact velocity or other means. For each restraint condition, the inflator output threshold speeds are identified. A biomechanical gray zone, for each injury assessment reference value, is defined based on occupant performance. The upper and lower bound of each biomechanical gray zone is associated with a type of occupant, inflator output, belt restraint and injury parameter.