Denso Corporation

Toyota Jidosha Kabushiki Kaisha

Yasuo Imamura

Yujiro Miyata

Yusuke Mase

Yukiyasu Ueno

Tateki Takayama

Hisashi Hagiwara

Yasuki Otake

Norihiko Nagae

Tomoaki Nakashima

Yuu Nakazawa

Tsutomu Kondo

An impact detecting device includes a first impact detecting portion, a determining portion and an informing portion. The first impact detecting portion detects an impact applied to an object equipped to a vehicle. The determining portion determines that the object has received the impact when a detection result of the first impact detecting portion is greater than a first impact determination threshold. The informing portion informs that the object has received the impact, when the determining portion determines that the object has received the impact.

Impact detecting device

A passenger protection system includes: first and second sensors that detect an impact applied to a vehicle in a width direction; a determination device that determines a collision by comparing a first detection signal from the first sensor with a first determination condition, and by comparing a second detection signal from the second sensor with a second determination condition; and a boarding position detector that detects a boarding position of a passenger. The determination device sets the first determination condition and the second determination condition according to the boarding position in such a manner that the first determination condition is different from the second determination condition.

Passenger protection system

An activating device for an airbag system is constructed to prevent erroneous activating operation. A microcomputer generates a test signal and applies it to a determination circuit and an inhibition circuit as an inhibition signal. The determination circuit grounds the gate of a switching element which activates an airbag. The inhibition circuit inhibits a switching element from being turned on based on the inhibition signal. In the ON-inhibition state, the switching element is turned on if it is normal with the gate grounded. The switching element remains OFF if it is in malfunction.

Activating device of vehicular passenger protection system

Growing community of inventors

Kariya, Japan

Yasuo Imamura