System and method for the detection and discrimination of vehicl

Details System and method for the detection and discrimination of vehicl System and method for the detection and discrimination of vehicl

1997-02-06

1999-05-04

Nguyen, Tan Q.

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Vehicle subsystem or accessory control

701 46, 701 47, 280735, 180282, B60R 2132

Patent

active

058999485

ABSTRACT:
A system and method for controlling deployment of an inflatable passenger restraint utilize distance-based thresholds to improve deployment time in high-speed crash events and to improve event discrimination for side impacts. The invention uses an acceleration signal to calculate distance and to calculate average acceleration using three buffers holding differing numbers of samples. The three average accelerations are used to determine the length of the acceleration curves above and below the zero axis which is defined as positive and negative jerk. Average acceleration and jerk are compared to the distance-based thresholds to determine whether or not to deploy the inflatable restraint.

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