Onboard air discharge system

Details Onboard air discharge system Onboard air discharge system

1988-02-29

1989-11-21

Joyce, Harold

Heat exchange

With valve or movable deflector for heat exchange fluid flow

With by-pass of heat exchanger or heat exchanger section

98 211, 98 215, 165 22, 165 41, 165 43, B60H 124

Patent

active

048814563

ABSTRACT:
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.

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