CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE

To suppress the occurrence of the dew condensation of a water component in an intake port during a stop of an internal combustion engine, related to a control device of the internal combustion engine.SOLUTION: In an internal combustion engine 10 having a water-cooling type cooler (intercooler) 22 ar...

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1. Verfasser: MANJU YOSHINORI
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To suppress the occurrence of the dew condensation of a water component in an intake port during a stop of an internal combustion engine, related to a control device of the internal combustion engine.SOLUTION: In an internal combustion engine 10 having a water-cooling type cooler (intercooler) 22 arranged at least at either of an intake passage 12 and an EGR passage 32 at an upstream side rather than an intake port 50, and a water pump 62 for supplying cooling water to the cooler 22, when an execution condition that a cooler temperature Tc is higher than a cooling water temperature Tw is satisfied, a control device (ECU) 40 performs a water supply operation for supplying the cooling water to the cooler 22 by operating the water pump 62 during a stop of the internal combustion engine 10, and when the cooler temperature Tc is not higher than the cooling water temperature Tw during the stop of the internal combustion engine 10, the control device does not perform the water supply operation.SELECTED DRAWING: Figure 1 【課題】この発明は、内燃機関の制御装置に関し、内燃機関の停止中に吸気ポート内での水分の結露の発生を抑制できるようにすることを目的とする。【解決手段】吸気ポート50よりも上流側の吸気通路12及びEGR通路32のうちの少なくとも一方に配置された水冷式の冷却器(インタークーラ)22と、冷却器22に冷却水を供給するためのウォーターポンプ62と、を備える内燃機関10において、制御装置(ECU)40は、内燃機関10の停止中に冷却器温度Tcが冷却水温度Twよりも高いという実行条件が満たされる場合には、ウォーターポンプ62を作動させることによって冷却器22に冷却水を供給する水供給動作を実行し、内燃機関10の停止中に冷却器温度Tcが冷却水温度Tw以下である場合には、水供給動作を実行しないように構成されている。【選択図】図1