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    • 1. 发明授权
    • Internal cylinder intake-air quantity calculating apparatus and method for variable valve open/closure timing controlled engine
    • 用于可变阀打开/关闭定时控制的发动机的内部气缸进气量计算装置和方法
    • US06328007B1
    • 2001-12-11
    • US09634008
    • 2000-08-07
    • Takahiko HirasawaYoshiaki YoshiokaHatsuo Nagaishi
    • Takahiko HirasawaYoshiaki YoshiokaHatsuo Nagaishi
    • F01L134
    • F02D41/0002F01L9/04F02D13/0215F02D13/0234F02D13/0253F02D41/18F02D2041/001F02D2200/0402F02M26/01Y02T10/18Y02T10/42
    • In apparatus and method for calculating an internal cylinder intake-air quantity for a variable valve timing controlled engine, an air quantity flowing into the intake manifold from an output of an airflow meter is calculated, the airflow meter being installed in an upstream portion of an intake manifold with respect to an intake valve whose at lease closure timing is variably controlled, a cylinder volume of a corresponding cylinder of the engine is calculated, an income and outgo of an air quantity flowing into the intake manifold and a cylinder intake-air quantity flowing from the intake manifold into the corresponding cylinder is calculated to derive an air quantity in the intake manifold, the internal cylinder intake-air quantity is calculated on the basis of the air quantity of the intake manifold and the cylinder volume, and the calculated cylinder volume is corrected on the basis of at least valve closure timing of the intake valve. The calculated internal cylinder intake-air quantity is used to calculate a fuel injection quantity to be supplied to the corresponding cylinder through a fuel injector.
    • 在用于计算可变气门正时控制发动机的内部气缸进气量的装置和方法中,计算从气流计的输出流入进气歧管的空气量,将气流计安装在 进气歧管相对于其可变控制的至少闭合时间的进气阀,计算发动机的相应气缸的气缸体积,流入进气歧管的空气量的收入和出口以及气缸进气量 计算从进气歧管流入相应的气缸中以导出进气歧管中的空气量,基于进气歧管的气量和气缸体积计算内部气缸吸入空气量,并且计算出的气缸 基于进气阀的至少阀关闭正时校正体积。 计算出的内部气缸进气量用于计算通过燃料喷射器供应到相应气缸的燃料喷射量。
    • 2. 发明授权
    • Intake air quantity calculating apparatus for an internal combustion engine with a variable valve timing control mechanism
    • 具有可变气门正时控制机构的内燃机的进气量计算装置
    • US06349592B1
    • 2002-02-26
    • US09634880
    • 2000-08-07
    • Takahiko HirasawaYoshiaki YoshiokaHatsuo Nagaishi
    • Takahiko HirasawaYoshiaki YoshiokaHatsuo Nagaishi
    • F02D4118
    • F02D41/0002F01L9/04F02D13/0203F02D13/0234F02D13/0253F02D41/187F02D41/2422F02D2041/002F02D2200/0404F02D2200/0406F02D2200/602G01F1/6965G01F15/043Y02T10/18Y02T10/42
    • An intake air quantity calculating apparatus for an internal combustion engine equipped with a variable valve timing control mechanism is provided. By the apparatus, an intake pipe pressure is detected or estimated. An intake air pulsation rate is determined on the basis of the detected or estimated intake pipe pressure and engine speed. An air flow error correction term basic value is determined on the basis of a throttle valve opening degree and engine speed. The air flow error correction term basic value is corrected on the basis of the intake air pulsation rate, whereby to determine an air flow error correction term for correcting an error in detection of an intake air quantity by an air flow meter. By the air flow error correction term, an intake air quantity detected by an air flow meter is corrected, whereby it becomes possible to improve the accuracy in calculation of the intake air quantity. In case the intake pipe pressure is to be estimated, an intake pipe pressure basic value is determined from the throttle valve opening degree and the engine speed. The intake pipe pressure basic value is corrected on the basis of a closing timing of an intake valve, whereby to estimate the intake pipe pressure. A method of calculating an intake air quantity of the engine through correction of an intake air quantity detected by an air flow meter is also provided.
    • 提供了一种配备有可变气门正时控制机构的内燃机的进气量计算装置。 通过该装置,检测或估计进气管压力。 基于检测或估计的进气管压力和发动机转速来确定进气空气脉动率。 基于节流阀开度和发动机转速确定气流误差校正项基本值。 基于进气脉动率校正空气流量误差校正项基本值,从而确定用于校正由空气流量计检测进气量的误差的气流误差校正项。 通过气流误差校正项,校正由空气流量计检测到的进气量,从而可以提高进气量的计算精度。 在要估计进气管压力的情况下,从节气门开度和发动机转速确定进气管压力基准值。 基于进气门的关闭正时来校正进气管压力基本值,从而估计进气管压力。 还提供了一种通过校正由空气流量计检测到的进气量来计算发动机的进气量的方法。
    • 10. 发明申请
    • HYBRID VEHICLE
    • 混合动力车
    • US20140288757A1
    • 2014-09-25
    • US14357869
    • 2011-11-14
    • Takahiko HirasawaNoritake Mitsutani
    • Takahiko HirasawaNoritake Mitsutani
    • B60W10/06B60W10/08B60W20/00
    • B60W10/06B60K6/445B60W10/08B60W20/10B60W30/1882B60W50/082B60W50/10B60W50/14B60W2510/0642B60W2510/101B60W2540/103B60W2710/0644Y02T10/6239Y02T10/6286Y02T10/84Y10S903/93
    • A hybrid vehicle according to one of embodiments of the present invention generates a driving torque using an internal combustion engine, an motor generator, and the like when a shift position is a driving position, the driving torque being determined based on a selected driving mode (e.g., a power mode to give priority to the power, and a normal mode to give priority to fuel consumption) and an accelerator operation amount. On the other hand, when the shift position is a neutral position, the vehicle maintains a rotational speed of the engine at a constant speed (including zero when the engine is stopped) regardless of the accelerator operation amount. When the accelerator operation amount becomes equal to or larger than an accelerator operation amount threshold while the neutral position is selected, the vehicle supplies information indicating that the neutral position is selected to a driver. The accelerator operation amount threshold is determined based on the driving mode.
    • 根据本发明的实施例中的一个的混合动力车辆,当换档位置是驾驶位置时,使用内燃机,电动发电机等产生驱动转矩,基于所选择的驾驶模式确定驱动转矩( 例如,将功率优先的功率模式和用于优先考虑燃料消耗的正常模式)和加速器操作量。 另一方面,当换档位置为中立位置时,车辆将发动机的转速保持在恒定速度(发动机停止时为零),而与加速器操作量无关。 当选择了中立位置时,当加速器操作量变得等于或大于加速器操作量阈值时,车辆向驾驶员提供指示中性位置的信息。 基于驾驶模式来确定加速器操作量阈值。