Nissan Motor Company Limited

Rumiko Oshima

Masahiro Egami

Seigo Watanabe

Mitsuhito Ito

Atsushi Takamatsu

Akinari Hirao

Masahiko Sakamoto

Takayoshi Nagano

Shigeki Ishiwata

A vehicle seat () includes a seat cushion () and a seat back (), in which the seat cushion () is given a stiffness distribution in a front-rear direction in such a way that a front part of the seat cushion is provided with a low stiffness region (PSc) which is more flexible than a rear part of the seat cushion being a high stiffness region (PHc).

Vehicle seat and stiffness setting method for vehicle seat

Imaging device picks up an image of the area around a vehicle, edge extraction function extracts an edge image from the image picked up by the imaging device, edge width standardization function standardizes an edge width of the edge image extracted by the edge extraction function, counting functions increments a count value corresponding to a position where the edge image standardized by the edge width standardization function is detected, and also initializes a count value corresponding to a position where the standardized edge image is not detected, moving speed detection function calculates a moving direction and moving speed of the edge image extracted by the edge extraction function based on the inclination of the count values, and collision time calculation function calculates the time of collision with an object by utilizing the position and the moving speed of the edge image calculated by the moving speed detection function.

Collision time estimation apparatus for vehicles, collision time estimation method for vehicles, collision alarm apparatus for vehicles, and collision alarm method for vehicles

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Novi, MI, United States of America

Rumiko Oshima