To provide a vehicle intake air cooling device capable of preventing boiling of cooling water and generation of condensate water in intake air.SOLUTION: A vehicle intake air cooling device: calculates a first cooling water flow rate which is a flow rate of cooling water to be supplied for adjusting a temperature of intake air to a target intake air temperature; calculates a second cooling water flow rate which is a minimum value of the flow rate of the cooling water to be supplied for keeping the temperature of the cooling water inside an intercooler 10 less than a cooling water upper limit temperature; controls cooling water volume adjustment means on the basis of the first cooling water flow rate when the first cooling water flow rate is equal to or larger than the second cooling water flow rate; controls the cooling water volume adjustment means on the basis of the second cooling water flow rate when the first cooling water flow rate is less than the second cooling water flow rate; and closes a grille shutter 50 when the temperature of the cooling water derived from a radiator 31 is less than a determination water temperature.SELECTED DRAWING: Figure 1
【課題】冷却水の沸騰と吸気中での凝縮水の発生とを抑制できる車両の吸気冷却装置の提供を目的とする。【解決手段】吸気の温度を目標吸気温度にするために必要な冷却水供給流量である第1冷却水流量を算出し、インタークーラ10内の冷却水の温度を冷却水上限温度未満にするために必要な冷却水供給流量の最小値である第2冷却水流量を算出し、第1冷却水流量が第2冷却水流量以上の場合は、第1冷却水流量に基づいて冷却水量調整手段を制御し、第1冷却水流量が第2冷却水流量未満の場合は、第2冷却水流量に基づいて冷却水量調整手段を制御し、ラジエータ31から導出される冷却水の温度が判定水温未満のときには、グリルシャッター50を閉じる。【選択図】図1
VEHICLE INTAKE AIR COOLING DEVICE
車両の吸気冷却装置
2022-01-17
Patent
Electronic Resource
Japanese
IPC: | F01P Kühlung von Kraft- und Arbeitsmaschinen oder Kraftmaschinen allgemein , COOLING OF MACHINES OR ENGINES IN GENERAL / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES |