US 2004/0002815 A1 · Collision determination system

Abstract

A collision determination system of the present invention includes a plurality of acceleration sensors provided in a bumper face of a vehicle for detecting the acceleration of deformation of the bumper face when the vehicle collides with an object. The system also includes an actuation permitter which, even when one of the acceleration sensors detects an acceleration equal to or more than a set value and it is determined that a collision occurs, refers to another acceleration sensor for operation. Under the AND conditions that an actuation permitting signal is supplied from the actuation permitter and a collision detection signal is supplied from a collision detector, an actuating signal output outputs an actuating signal for actuating collision mitigating devices.

Claims5

Dependent claims

A collision determination system for detecting a collision of a vehicle with an object and outputting an actuating signal to collision mitigating devices, said system comprising:

a plurality of acceleration sensors for mounting to a front portion of said vehicle to detect accelerations of movement of said front portion in the vehicle longitudinal direction;
an actuation permitting means for outputting an actuation permitting signal for a fixed time period when one of said acceleration sensors detects an acceleration equal to or more than a set value within a set time after another acceleration sensor detects an acceleration equal to or more than the set value;
a collision detecting means for outputting a collision detection signal when determining that a collision with a given object occurs based on acceleration detected by at least one of said acceleration sensors;
and
an actuating signal outputting means for outputting an actuating signal to said collision mitigating devices when receiving both an actuation permitting signal from said actuation permitting means and a collision detection signal from said collision detecting means.

2 more elements

A collision determination system for detecting a collision of a vehicle with an object and outputting an actuating signal to collision mitigating devices, said system comprising:

a plurality of acceleration sensors for mounting to a front portion of said vehicle to detect accelerations of movement of said front portion in the vehicle longitudinal direction;
a plurality of collision detecting means provided in correspondence with said respective acceleration sensors to perform calculations with said detected accelerations detected by said acceleration sensors, thereby to detect a collision of said vehicle with said object;
a plurality of acceleration comparing means provided in correspondence with said respective acceleration sensors to determine whether or not said detected accelerations detected by said acceleration sensors are equal to or more than a set value;
and
an actuating signal outputting means for outputting an actuating signal when determining that any of said collision detecting means detects a collision and any of said acceleration comparing means referring to the corresponding acceleration sensor which is different from the acceleration sensor referred to by said collision detecting means detecting the collision has detected an acceleration equal to or more than the set value during a predetermined past time period before the collision detection.

2 more elements

Dependencies are inferred from the claim text.

Collision determination system

Life of this patent

Collision determination system

Life of this patent

Abstract

Claims5