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    • 2. 发明申请
    • ENGINE CONTROL DEVICE
    • 发动机控制装置
    • US20160123269A1
    • 2016-05-05
    • US14896772
    • 2013-06-10
    • Kazuyasu IWATAAkira YAMASHITA
    • Kazuyasu IWATAAkira YAMASHITA
    • F02D41/40F02D23/02F02D41/10F02D41/26F02D41/38F02D41/14
    • F02D41/401F02D23/02F02D35/025F02D35/028F02D41/0007F02D41/107F02D41/1444F02D41/26F02D41/3863F02D2021/083F02D2200/501Y02T10/144
    • A control device for an engine provided with a turbocharger properly uses a parameter used for controlling a center-of-gravity position of a heat generation rate determined by a heat generation rate as the amount per unit crank angle of heat generated by combustion of fuel depending on operating situations of the engine and a vehicle in which the engine is mounted. Specifically, an increase in a turbocharging pressure of the turbocharger is executed when a rotational speed of the engine and a speed of the vehicle in which the engine is mounted are lower than predetermined reference values in a case where the center-of-gravity position of a heat generation rate is further on a retard side than a predetermined crank angle and one or both of an increase in a fuel injection pressure and advancing of a fuel injection timing are executed when the rotational speed of the engine or the speed of the vehicle in which the engine is mounted are equal to or higher than the predetermined reference values in the case where the center-of-gravity position of a heat generation rate is further on the retard side than the predetermined crank angle. Then, fuel economy can be improved by the center-of-gravity position of a heat generation rate being maintained at a predetermined fixed value regardless of a load of the engine and/or the engine rotational speed while an increase in noise and vibration a user feels uncomfortable with is suppressed.
    • 具有涡轮增压器的发动机的控制装置适当地使用用于控制由发热量确定的发热速率的重心位置的参数作为燃料燃烧产生的每单位曲柄转角角度的量 在发动机的操作情况和其中安装有发动机的车辆。 具体而言,当发动机的转速和发动机的安装速度低于预定的参考值时,执行涡轮增压器的涡轮增压压力的增加,在重力位置 在比预定的曲柄角更缓慢的一侧的发热率进一步发生,并且当发动机的转速或者车辆的速度变化时,执行燃料喷射压力的增加和燃料喷射正时的推进中的一个或两个 在发热速率的重心位置比预定的曲柄角更远的延迟侧的情况下,发动机的安装位置等于或大于预定的基准值。 然后,随着发动机的负荷和/或发动机转速的增加,发热速率的重心位置保持在预定的固定值,燃料经济性可以提高,而使用者的噪音和振动增加 感觉不舒服被压制。
    • 3. 发明申请
    • Control Device for Internal Combustion Engine
    • 内燃机控制装置
    • US20160115888A1
    • 2016-04-28
    • US14896193
    • 2013-06-05
    • Akira YAMASHITAKazuyasu IWATA
    • Akira YAMASHITAKazuyasu IWATA
    • F02D41/04
    • F02D41/04F02D35/023F02D35/026F02D35/028
    • To provide a control device capable of setting a plurality of combustion parameters changing a combustion state of an internal combustion engine to appropriate values and improving a fuel consumption rate regardless of an operation state.An engine ECU 70 sets a combustion parameter (main injection timing, pilot injection timing, fuel injection pressure, turbocharging pressure, or the like) such that a center-of-gravity position of a heat generation rate becomes a constant target crank angle regardless of a load of an engine 10. In addition, the ECU 70 estimates the center-of-gravity position of a heat generation rate based on an output of an in-cylinder pressure sensor 64 and feedback-controls the combustion parameter such that the estimated center-of-gravity position of a heat generation rate becomes equal to the target crank angle.
    • 提供一种控制装置,其能够将不同的运转状态,将内燃机的燃烧状态改变为适当的值并提高燃料消耗率来设定多个燃烧参数。 发动机ECU70设定使发热速度的重心位置成为恒定的目标曲柄角度的燃烧参数(主喷射正时,先导喷射正时,燃料喷射压力,涡轮增压压力等),而不管 发动机10的负载。另外,ECU70基于缸内压力传感器64的输出来估计发热量的重心位置,并且反馈控制燃烧参数,使得估计中心 发热速率的重力位置等于目标曲柄角。