US 8,428,862 B2 · Collision detecting device

Abstract

An object is to be able to accurately discriminate an object of a collision. A device has a collision detection to which are connected a pressure sensor that detects pressure within a pressure chamber, and a vehicle speed sensor that detects vehicle speed, and the collision detection determines effective mass of a collided object on the basis of an integrated value obtained by integrating, at a predetermined sectional integration width, detection results of the pressure sensor, and a converted vehicle speed signal obtained by subtracting a predetermined value α from a vehicle speed signal of the vehicle speed sensor by using a predetermined vehicle speed converting map or the like. Then, when the determined effective mass exceeds a predetermined threshold value, the collided object is discriminated as a pedestrian.

Claims8

Dependent claims

A collision detecting device comprising:

pressure detecting means for detecting pressure of a pressure chamber that is disposed within a vehicle bumper;
vehicle speed detecting means for detecting vehicle speed;
discrimination value calculating means for, in accordance with a vehicle speed detected by the vehicle speed detecting means, deciding upon a sectional integration width at which detection results of the pressure detecting means are time-integrated, and calculating a discrimination value for discriminating a type of a collided object, on the basis of an integrated value obtained by time-integrating, at the sectional integration width that was decided upon, the physical amount detected by the detecting means, wherein the sectional integration width is variable;
and
discriminating means for discriminating the type of the collided object on the basis of the discrimination value.

2 more elements

Dependencies are inferred from the claim text.

Collision detecting device

Life of this patent

Collision detecting device

Life of this patent

Abstract

Claims8