PROBLEM TO BE SOLVED: To provide a drowsiness prevention device by which, without decreasing the temperature of a heat transfer medium to almost the same temperature used in a case where the temperature of the heat transfer medium that may cause heat transfer between an occupant, i.e., a driver, and the medium, is simply decreased, almost the same degree of awakening effect as that in the case can be obtained.SOLUTION: A control part of a drowsiness prevention device 10 controls a cold/warm air current unit 11 such that, in order to awaken a driver 82, the temperature of air around the occupant, which may cause heat transfer between the driver 82 and the air, is once increased and then the driver 82 is made aware of coldness. Therefore, in a case where a configuration example in which the temperature of air around the occupant is simply decreased is assumed, the range of a decrease of the temperature of air around the occupant, for making the driver aware of coldness, can be achieved to almost the same degree as that in the configuration example, without decreasing the temperature of air around the occupant to almost the same temperature used in the configuration example. Accordingly, it is possible to obtain almost the same degree of awakening effect as that in the configuration example without decreasing the temperature of air around the occupant to almost the same temperature used in the configuration example.SELECTED DRAWING: Figure 1
【課題】運転者である乗員との間で熱移動を生じる伝熱媒体の温度を単に低下させる場合と同程度の温度にまで伝熱媒体の温度を低下させなくても、その場合と同程度の覚醒効果を得ることが可能な眠気抑制装置を提供する。【解決手段】眠気抑制装置10の制御部は、運転者82の覚醒を促す際には、運転者82との間で熱移動を生じる乗員周辺空気の温度を一旦上昇させた後に運転者82に冷感を与えるように冷温風ユニット11を制御する。従って、乗員周辺空気の温度を単に低下させる構成例を想定した場合、その構成例と同程度の温度にまで乗員周辺空気の温度を低下させなくても、冷感を与えるための乗員周辺空気の温度の低下幅を、その構成例と同程度に生じさせることが可能である。その結果、その構成例と同程度の温度にまで乗員周辺空気の温度を低下させなくても、その構成例と同程度の覚醒効果を得ることが可能である。【選択図】図1
DROWSINESS PREVENTION DEVICE
眠気抑制装置
2018-09-20
Patent
Electronic Resource
Japanese
IPC: | B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet |
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