Aisin Seiki Kabushiki Kaisha

New Japan Radio Co., Ltd.

Hajime Fujiwara

Kenichi Taguchi

Kenji Takebuchi

Akira Seshimoto

Kimiyoshi Yamasaki

Nobumitsu Hirano

Hiroyuki Kuchiji

Masaya Otokawa

An ultrasonic sensor in the invention includes an ultrasonic transmitter, an ultrasonic receiver, and a detector. The ultrasonic transmitter transmits pulse-shaped ultrasonic waves to a thin plate to excite the thin plate. The ultrasonic receiver receives direct waves and reflected waves among the ultrasonic waves propagating in the thin plate excited by the pulse-shaped ultrasonic waves, the direct waves propagating only in the thin plate, and the reflected waves radiating outward, then reflected by the object, and returning to the thin plate. The detector detects the object present near the thin plate on the basis of a difference between a time at which the ultrasonic receiver receives the direct waves and a time at which the ultrasonic receiver receives the reflected waves.

Ultrasonic sensor and vehicle control system

Growing community of inventors

Fujimino, Japan

Hajime Fujiwara