Aisin Seiki Kabushiki Kaisha

Kohji Aoki

Tomio Yasuda

Hitoshi Ishikawa

Hideyuki Kanie

Kazuo Mori

Toshimitsu Oka

Yasuda Tomio

Komazawa Osamu

Sugiyama Masanori

A rotational pulse signal generating circuit for a commutator DC motor is made up of a filter device for eliminating noise from the motor, a cutoff frequency of the filter device being variable depending on an external signal; a pulse shaping device for generating a ripple pulse indicative of a rotational number of the motor by wave-shaping an output of the filter device; and a clock generating device for generating a clock signal on the basis of the ripple pulse and a rotational condition signal of the motor, the clock signal being fed to the filter device for making the cutoff signal thereof variable.

Rotational pulse generating circuit for commutator DC motors

A control device for a movable member includes a DC motor for establishing position transfer of the movable member in such a manner that after a first position of the movable member is stored in a memory, even if the movable member is at a second position, the moving member is returned to the first position only upon manipulating a switch and a motor pulse generating circuit generates a cut-off frequency which is variable depending on a ripple pulse frequency which is indicative of a rotational number of the motor.

Control device for movable member

A wearing condition of a seat belt assembly is detected while considering a difference in a preferred mode of the seat belt assembly between the presence and the absence of a personnel who is seated upon a seat. In the prior art arrangement, in which a mechanical coupling of a seat belt assembly is considered alone, an alarm may be given off in the absence of the coupling. This may result in giving off an alarm for a vacant seat on which no personnel is seated. Such inconvenience is completely eliminated in accordance with the invention in which a decision differs between the presence or absence of a seating. The relationship between a webbing and a personnel sitting on the seat is analyzed, whereby an anomaly in the wearing condition such as sitting over the webbing after coupling the seat belt assembly can be detected.

Apparatus for detecting the wearing of a seat belt assembly

An onboard air discharge system includes a first electrode mounted on each of a plurality of onboard seats of a vehicle. A second electrode is disposed in relation to each of the first electrodes such that at least part of a personnel who is seated upon a seat on which the first electrode is mounted is interposed between the both electrodes. The presence or absence of a personnel is detected for each seat on the basis of a change in the capacitance formed between the first and the second electrode. Air ejection toward the seat for which the absence of a personnel has been determined is inhibited. When a personnel is seated upon a seat, there occurs a large change in the capacitance formed between the first and the second electrode. Such change depends on the dielectric permittivity of a personnel, and hence is greatly different from a corresponding change which would occur when a baggage or the like is placed on the seat, thus enhancing the accuracy with which the presence or absence of a personnel on the seat is detected. The air ejection is controlled on such reliable information indicating the presence or absence of a personnel, and hence the efficiency of air ejection is improved with an increased reliability.

Onboard air discharge system

The attitude (as well as the position) of a front one of onboard seats which are disposed one behind the other is controlled. To secure a space for allowing an occupant to be seated upon the rear seat, a retracting limit of an entire front seat and a rear tilting limit for its seat back are determined experimentarily to define an extent of variable attitudes. When an occupant is seated upon the rear seat, the attitude of the front seat is controlled responsive to a command to change the attitude while making a reference to the extent of variable attitudes. A retracting movement of the entire front seat which goes beyond the rear limit as well as a rearward tilting or reclining of the seat back of the front seat which goes beyond the rear tilting limit are both inhibited. In this manner, when an occupant is seated upon the rear seat, the comfortableness of such occupant is secured if the driver carelessly enters a command to change the attitude of the front seat, while preventing any oppression presented to the physical body or causing a stressed attitude of the occupant seated upon the rear seat.

Attitude control apparatus for onboard seat

An arrangement for locking a cover which can be opened and closed to cover an opening of a vehicle such as a door or luggage lid is disclosed. Means for detecting the presence or absence of an occupant within the vehicle as well as means for detecting the open or closed condition of the cover are provided. When the absence of an occupant is detected and the closed condition of the opening cover is detected, a lock mechanism which blocks an opening movement of the opening cover is locked. In this manner, if an occupant has forgotten to lock a door or doors when getting off his vehicle, the doors are automatically locked, thus reliably preventing a theft or tampering with the vehicle.

Lock assembly for onboard opening cover

An emergency unlock assembly is provided for unlocking a lock mechanism associated with an onboard opening cover such as a boarding door, in response to the detection of an impact applied. The assembly includes means for detecting the presence or absence of an occupant within a vehicle. When the presence of an occupant is detected, the lock mechanism is unlocked in response to the detection of an impact applied. The lock mechanism is not unlocked in response to the detection of an impact applied in the absence of an occupant. This allows a rapid rescue of an inboard occupant in the event of an emergency while reliably preventing a casuality such as a theft of or articles placed in a vehicle in the absence of an occupant.

Growing community of inventors

Nagoya, Japan

Kohji Aoki