CONTROL DEVICE OF ENGINE

PROBLEM TO BE SOLVED: To provide a control device of an engine capable of securing performance of a hydraulic valve stopping mechanism regardless of an operational state.SOLUTION: A control device of an engine has a valve stopping mechanism 14b capable of closing intake valves and exhaust valves of first and fourth cylinders among four cylinders on the basis of establishment of cylinder reduction operation execution conditions, an ECU 110 controlling the valve stopping mechanism 14b, an oil temperature sensor 100, an oil level sensor 101, and a turning acceleration sensor 103. The ECU 110 determines an operation state in which mixing of air to an oil supplied to the valve stopping mechanism 14b is assumed, when an oil level is a determination value D or less, a turning acceleration of a vehicle is a determination value G or more, or an oil temperature is a determination temperature T1b or more, and prohibits switching of an operation even when a switching execution condition from a full-cylinder operation to a cylinder reduction operation is established.SELECTED DRAWING: Figure 5 【課題】運転状態に拘らず油圧式弁停止機構の性能を確保することができるエンジンの制御装置を提供する。【解決手段】減筒運転の実行条件成立により４気筒から第１，第４気筒の吸気弁及び排気弁を閉弁する弁停止機構１４ｂと、弁停止機構１４ｂを制御するＥＣＵ１１０と、油温センサ１００と、オイルレベルセンサ１０１と、旋回加速度センサ１０３とを備え、ＥＣＵ１１０は、オイルレベルが判定値Ｄ以下のとき、又は、車両の旋回加速度が判定値Ｇ以上のとき、又は、油温が判定温度Ｔ１ｂよりも大きいとき、弁停止機構１４ｂに供給されるオイルにエア混入が想定される運転状態と判定すると共に、全筒運転から減筒運転への切替実行条件が成立しても運転切替を禁止する。【選択図】 図５