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    • 9. 发明公开
    • Combustion control sytem of internal combustion engine
    • 内燃机的燃烧控制系统
    • EP2375034A3
    • 2018-03-14
    • EP11161715.5
    • 2011-04-08
    • TOYOTA JIDOSHA KABUSHIKI KAISHA
    • Matsunaga, Akio
    • F02D35/02
    • F02D35/023
    • A required nominal-torque heat-release-rate characteristic value that satisfies the required nominal torque, required engine speed and required ignition timing is specified as the maximum value of a heat-release-rate waveform. It is determined whether a limiting-value heat-release-rate characteristic value based on a restriction, such as combustion noise, is within a permissible range of the restriction, with respect to one of the required nominal-torque heat-release-rate characteristic values which meets the above requirements, and the required nominal-torque heat-release-rate characteristic value is changed to another required nominal-torque heat-release-rate characteristic value that meets the above requirements, until the limiting-value heat-release-rate characteristic value falls within the permissible range of the restriction. Where there a plurality of required nominal-torque heat-release-rate characteristic values that meet the respective requirements, one of the characteristic values which is closest to the compression top dead center is used, and an actuator, such as an injector, is driven so as to provide the nominal-torque heat-release-rate characteristic value.
    • 将满足所需额定转矩,所需发动机转速和所需点火正时的所需额定转矩热释放率特征值指定为热释放率波形的最大值。 基于限制(例如燃烧噪声)的极限值热释放率特性值是否在限制的允许范围内,相对于所需额定转矩热释放率特性 满足上述要求的值以及所需的额定转矩热释放率特性值改变为满足上述要求的另一个所需额定转矩热释放率特性值,直到达到限制值热释放率特性值为止, 速率特性值落入限制的允许范围内。 在满足各个要求的多个所需额定转矩热释放率特性值的情况下,使用最靠近压缩上止点的特性值之一,并且驱动诸如喷射器的致动器 以提供标称转矩热释放率特性值。
    • 10. 发明公开
    • CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
    • 内燃机控制装置
    • EP3273039A1
    • 2018-01-24
    • EP17185773.3
    • 2013-06-05
    • TOYOTA JIDOSHA KABUSHIKI KAISHA
    • YAMASHITA, AkiraIWATA, Kazuyasu
    • 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,其能够将多个燃烧参数设定为适当的值,并且与运转状态无关地提高燃料消耗率。 发动机ECU 70设定燃烧参数(主喷射正时,先导喷射正时,燃料喷射压力,涡轮增压压力等),使得发热率的重心位置变为恒定的目标曲轴角度而不管 另外,ECU 70基于缸内压力传感器64的输出来估计发热率的重心位置,并反馈控制燃烧参数,使得估计的中心 发热率的重心位置与目标曲轴角度相等。