Patent Number: 6,305,709

Title: Airbag unit

Abstract: An airbag unit comprising: an acceleration sensor for detecting anacceleration applied to a vehicle; an acceleration-to-speed convertingmeans for inputting an acceleration signal fed from the accelerationsensor and converting it to a speed signal; a crash state judging meansfor judging the type of crash on the basis of the speed signal fed fromthe acceleration-to-speed converting means; a first and second thresholdgenerating means each for selecting and outputting a threshold dependingon the crash type; a first comparing means for comparing the thresholdfrom the first threshold generating means and the acceleration signal, andoutputting a first crash signal; a second comparing means for comparingthe threshold from the second threshold generating means and the speedsignal, and outputting a second crash signal; and an activation controlmeans for comparing the first crash signal and the second crash signal andoutput an inflation signal.

Inventors: Okada; Takeo (Saitama, JP)


International Classification:

Expiration Date: 10/23/2013