초록 ▼

An apparatus for controlling an actuatable occupant restraint device for a vehicle, the restraining device having a plurality of actuatable stages (24, 26), the apparatus including a crash sensor (14, 16) for sensing crash acceleration and providing a crash acceleration signal indicative thereof. A

An apparatus for controlling an actuatable occupant restraint device for a vehicle, the restraining device having a plurality of actuatable stages (24, 26), the apparatus including a crash sensor (14, 16) for sensing crash acceleration and providing a crash acceleration signal indicative thereof. A controller (22) includes an integrator (72, 172) for determining a velocity value from the crash acceleration signal and for providing a velocity signal (74, 174). The controller (22) is coupled to the actuatable device for (i) effecting actuation of a first of the actuatable stages (24) when the determined velocity value exceeds a first threshold value, and (ii) upon the determined velocity value exceeding a second threshold value, determining a crash severity index (112, 212) having a value related to a time interval from when the determined velocity value (74, 174) exceeds the first threshold value (88, 188) to when the determined velocity value exceeds the second threshold value (96, 196). The controller effects actuation of a second of the actuatable stages (26) in response to the crash severity index value (112, 212).

대표청구항 ▼

[ Having described the invention, the following is claimed:] [1.] An apparatus for controlling an actuatable occupant restraint device for a vehicle, said restraining device having a plurality of actuatable stages, said apparatus comprising:crash sensing means for sensing crash acceleration and prov

[ Having described the invention, the following is claimed:] [1.] An apparatus for controlling an actuatable occupant restraint device for a vehicle, said restraining device having a plurality of actuatable stages, said apparatus comprising:crash sensing means for sensing crash acceleration and providing a crash acceleration signal indicative thereof;velocity determining means responsive to said crash acceleration signal for determining a velocity value and providing a velocity signal indicative thereof;control means coupled to said actuatable device for (i) effecting actuation of a first of said actuatable stages when said determined velocity value exceeds a first threshold value, and (ii) upon said determined velocity value exceeding a second threshold value, determining a crash severity index having a value related to a time interval from when said determined velocity value exceeds said first threshold value to when said determined velocity value exceeds said second threshold value, said control means controlling actuation of a second of said actuatable stages in response to said crash severity index value.