Abstract: In a seat belt device, when the collision of a vehicle is foreknown, a motor of a retractor is driven for rotation in a normal direction to take up a webbing of a seat belt, and when an acceleration equal to or larger than a predetermined value is applied to the vehicle, the webbing is locked so that it cannot be drawn out of the retractor. In a case where the collision is avoided after the motor of the retractor is driven for rotation in the normal direction based on the foreknowing of the collision to increase the tension of the webbing of the seat belt, when it is detected by systems having information regarding the acceleration of the vehicle that the acceleration of the vehicle has been reduced to be smaller than the predetermined value, the locking operation of the retractor is cancelled to loose the webbing by driving the motor of the retractor for rotation in the normal direction.

Abstract: An occupant detection system, which has a sensor, a controller, a base frame, and a heat insulator.

Abstract: An occupant position detection system includes a distance sensor 4 located on a seat back 3 of a seat of a vehicle, an angle sensor 5 for sensing an inclined angle of the seat back 3, and a sliding displacement sensor 6 for sensing a sliding displacement value of the seat in fore and aft directions, wherein an occupant position is detected on the basis of sensed values of the distance sensor 4, the angle sensor 5 and the sliding displacement sensor 6.

Abstract: A sheet-shaped sensor body includes a first protective layer formed of a resist paste layer, an antenna film formed of a PET film, a first conductive layer formed of a silver layer, a second conductive layer formed of a carbon layer, a second protective layer formed of a resist paste layer and a hot-melt film, which are laminated one on another in sequence. When the hot-melt film of the sensor body is brought into abutment against a front surface of a wadding previously adhered to a pad of a seat back and is then heat-pressed, the sensor body is fixed firmly and reliably to the wadding by an adhesive force generated by the melted hot-melt film once it again cools and solidified. Thus, the sensor of an occupant detecting system for detecting the physical constitution and the attitude of an occupant sitting on a seat can be fixed easily and reliably to the seat back.

Abstract: A passenger detecting system includes a plurality of antenna electrodes provided in a seat, a signal generating section, a detecting section, a switching circuit and a control unit. The signal generating section generates an electrode signal. The switching circuit sequentially supplies the electrode signal to the plurality of antenna electrodes one by one in response to a switching control signal. The detecting section detects change of the electrode signal to generate a detection signal when the electrode signal is supplied to each of the plurality of antenna electrodes. The control unit outputs the switching control signal to the switching circuit and generates a passenger data associated with a passenger on the seat based on the detection signal for each of the plurality of antenna electrodes.

Abstract: A high-frequency generating circuit is connected to six electrode fabrics embedded in a seat back of an assistant driver's seat. Output current flowing at the time when a human body approaches the electrode fabrics is detected. It is determined whether an occupant is an adult or a child, by comparing patterns of the output current which correspond to the six electrode fabrics with a first threshold value and a second threshold value to detect the positions of the head, neck and shoulder of the occupant. When the occupant is a child having a short sitting height, the operation of an air bag device is prohibited upon collision of a vehicle, and a warning lamp is lit to move the occupant to a rear seat.

Abstract: A passenger detecting system includes a plurality of antenna electrodes provided in a seat, a signal generating section, a detecting section, a switching circuit and a control unit. The signal generating section generates an electrode signal. The switching circuit sequentially supplies the electrode signal to the plurality of antenna electrodes one by one in response to a switching control signal. The detecting section detects change of the electrode signal to generate a detection signal when the electrode signal is supplied to each of the plurality of antenna electrodes. The control unit outputs the switching control signal to the switching circuit and generates a passenger data associated with a passenger on the seat based on the detection signal for each of the plurality of antenna electrodes.

Abstract: A passenger detecting system includes a plurality of antenna electrodes provided in a seat, a signal generating section, a detecting section, a switching circuit and a control unit. The signal generating section generates an electrode signal. The switching circuit sequentially supplies the electrode signal to the plurality of antenna electrodes one by one in response to a switching control signal. The detecting section detects change of the electrode signal to generate a detection signal when the electrode signal is supplied to each of the plurality of antenna electrodes. The control unit outputs the switching control signal to the switching circuit and generates a passenger data associated with a passenger on the seat based on the detection signal for each of the plurality of antenna electrodes.

Abstract: An occupant position detection system includes a distance sensor 4 located on a seat back 3 of a seat of a vehicle, an angle sensor 5 for sensing an inclined angle of the seat back 3, and a sliding displacement sensor 6 for sensing a sliding displacement value of the seat in fore and aft directions, wherein an occupant position is detected on the basis of sensed values of the distance sensor 4, the angle sensor 5 and the sliding displacement sensor 6.

Abstract: A passenger detection system for precisely detecting the sitting condition of a passenger occupying a seat, who leans against the seat supporting section, and for suitably controlling the deployment/non-deployment of the side airbag based on the results of the detection process. The system comprises a seat having a seat supporting section in which an antenna electrode is provided; a voltage generation device for generating a high-frequency and low-voltage signal which induces a weak electric field around the antenna electrode; a current detection section for detecting a current which flows according to the generated weak electric field; and a control circuit for detecting a leaning condition of the passenger against the seat supporting section, based on a signal output from the current detection section; and an airbag apparatus including a side airbag unit positioned close to a door, the apparatus having a function of deploying the side airbag unit when a collision occurs.

Abstract: If a seat belt is not fastened, then a first switch is turned on and a second switch is turned off, and a fastened status detector outputs an impact decision level signal to a switch, which selects a signal from a first impact decision level output unit. Thus, when the speed of a motor vehicle is about 16 km/h or higher immediately prior to a collision, an air bag is inflated upon the collision. If the seat belt is fastened, then the first switch is turned off and the second switch is turned on, and the fastened status detector outputs an impact decision level signal, selecting a signal from a second impact decision level output unit. Thus, when the speed of the motor vehicle is about 24 km/h or higher immediately prior to a collision, the air bag is inflated upon the collision.