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    Control unit for internal combustion engine
    21.
    发明授权
    Control unit for internal combustion engine 有权
    内燃机控制单元

    公开(公告)号：US09574513B2

    公开(公告)日：2017-02-21

    申请号：US14240791

    申请日：2012-10-23

    申请人： MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA

    发明人： Takashi Kawabe ,  Fumiaki Hiraishi

    IPC分类号： F02D41/30 ,  F02D41/34 ,  F02D43/04 ,  F02D13/02 ,  F02D41/04

    CPC分类号： F02D41/30 ,  F02D13/0261 ,  F02D41/0007 ,  F02D41/04 ,  F02D41/3094 ,  F02D41/34 ,  F02D43/04 ,  Y02T10/18 ,  Y02T10/44

    摘要： Provided is a control unit (1) for an internal combustion engine (10) including a direct injector (11) directly injecting fuel into a cylinder (20) and a port injector (12) injecting fuel into an intake port (17). The control unit (1) includes an injection volume calculator (5) to calculate a volume of the fuel injected from the direct injector (11), a port injection controller (2) to control a volume of the fuel injected from the port injector (12), an overlap period controller (4) to control an overlap period during which both an intake valve (27) and an exhaust valve (28) are open, and a changer (6) to vary both the volume of the port injection from the port injector (12) and the overlap period based on the volume of the direct injection.

    摘要翻译： 提供一种用于内燃机（10）的控制单元（1），其包括将燃料直接喷射到气缸（20）中的直接喷射器（11）和将燃料喷射到进气口（17）中的喷射器（12）。 控制单元（1）包括用于计算从直接喷射器（11）喷射的燃料的体积的喷射量计算器（5），用于控制从喷射器喷射的燃料的体积（2） 12），用于控制进气门（27）和排气门（28）两者都打开的重叠时段的重叠周期控制器（4），以及更换器（6） 端口喷射器（12）和基于直接喷射的体积的重叠时段。

    INTERNAL COMBUSTION ENGINE
    26.
    发明申请
    INTERNAL COMBUSTION ENGINE 审中-公开
    内燃机

    公开(公告)号：US20160290245A1

    公开(公告)日：2016-10-06

    申请号：US15082037

    申请日：2016-03-28

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Takuya OKUBO ,  Norihisa NAKAGAWA ,  Koichi KIMURA

    IPC分类号： F02D13/02 ,  F02D41/26

    CPC分类号： F02D13/0261 ,  F02B25/145 ,  F02B37/00 ,  F02D41/0007 ,  F02D41/0295 ,  F02D41/1441 ,  F02D41/1454 ,  F02D41/1456 ,  F02D41/26 ,  F02D2041/001 ,  F02D2200/0814 ,  Y02T10/144 ,  Y02T10/18

    摘要： An internal combustion engine 100 comprises an air-fuel ratio control device. The air-fuel ratio control device controls the amount of fuel fed to the combustion chamber by feedback control so that the air-fuel ratio detected by the upstream side air-fuel ratio sensor matches the target air-fuel ratio when a blow-through amount of air blown from the intake passage through a cylinder to the exhaust passage due to an occurrence of valve overlap is a reference blow-through amount or less. The air-fuel ratio control device sets the target air-fuel ratio of the inflowing exhaust gas based on the air-fuel ratio detected by the downstream side air-fuel ratio sensor and, without performing the feedback control, feeds the amount of fuel calculated from the target air-fuel ratio to the combustion chamber when the blow-through amount is greater than the reference blow-through amount.

    摘要翻译： 内燃机100包括空燃比控制装置。 空燃比控制装置通过反馈控制来控制供给到燃烧室的燃料量，使得当上游侧空燃比传感器检测出的空燃比与目标空燃比相匹配时， 由于气门重叠的发生而从进气通道通过气缸吹送到排气通道的空气是参考穿透量或更少。 空燃比控制装置基于由下游侧空燃比传感器检测出的空燃比设定流入废气的目标空燃比，在不执行反馈控制的情况下，输入计算出的燃料量 当所述吹出量大于所述基准吹出量时，从所述目标空燃比向所述燃烧室。

    ENGINE CONTROL APPARATUS
    28.
    发明申请
    ENGINE CONTROL APPARATUS 有权
    发动机控制装置

    公开(公告)号：US20160215705A1

    公开(公告)日：2016-07-28

    申请号：US15023542

    申请日：2015-08-06

    申请人： MAZDA MOTOR CORPORATION

    发明人： Yukio HAIZAKI ,  Naohiro YAMAGUCHI ,  Kazutoyo WATANABE ,  Yasunori MATOBA

    IPC分类号： F02D13/02 ,  F02D13/06 ,  F02P5/145

    CPC分类号： F02D13/0215 ,  F02D13/0261 ,  F02D13/06 ,  F02D17/02 ,  F02D37/02 ,  F02D41/0002 ,  F02D41/006 ,  F02D41/0087 ,  F02D2041/001 ,  F02D2041/0012 ,  F02D2250/21 ,  F02P5/045 ,  F02P5/145 ,  F02P5/1504 ,  F02P5/1508 ,  Y02T10/18 ,  Y02T10/42 ,  Y02T10/46 ,  Y02T10/47

    摘要： In response to a switching demand from an all-cylinder operation to a reduced-cylinder operation, the amount of air to be taken into each of cylinders 2A to 2D is made larger than the amount of air during the ail-cylinder operation in a normal state. Preparatory control of changing the ignition timing of ignition device to a timing on the retard side with respect to the ignition timing during the all-cylinder operation in the normal state is executed. After termination of the preparatory control, the reduced-cylinder operation is started. During execution of the preparatory control, the valve closing timing of an exhaust valve 9 is changed to a timing on the advance side with respect to the valve closing timing thereof during the all-cylinder operation in the normal state so as to reduce the amount of internal EGR gas in at least a part of an operating range C.

    摘要翻译： 响应于从全缸操作到减缸操作的切换需求，使得要进入每个气缸2A至2D的空气量大于在正常工作期间的空气量 州。 执行在正常状态下的全汽缸操作期间将点火装置的点火正时改变为相对于全汽缸操作期间的点火正时的延迟侧的定时的预备控制。 在预备控制结束之后，开始减缸操作。 在执行准备控制期间，在正常状态下的全缸操作期间，排气阀9的关闭正时相对于其关闭正时改变为提前侧的定时，从而减少 内部EGR气体在工作范围C的至少一部分

    Control device for internal combustion engine
    30.
    发明授权
    Control device for internal combustion engine 有权
    内燃机控制装置

    公开(公告)号：US09303569B2

    公开(公告)日：2016-04-05

    申请号：US14413830

    申请日：2012-07-19

    申请人： Yoshihiro Sakayanagi

    发明人： Yoshihiro Sakayanagi

    IPC分类号： F01L1/34 ,  F02D13/02 ,  F02D23/00 ,  F02D41/00

    CPC分类号： F02D13/0234 ,  F02D13/0219 ,  F02D13/0261 ,  F02D23/00 ,  F02D41/0002 ,  F02D41/0062 ,  F02D41/10 ,  F02D2041/001 ,  F02D2200/0402 ,  Y02T10/144 ,  Y02T10/18 ,  Y02T10/42

    摘要： An object of this invention is to appropriately control the valve timing (VT) even in a case where a plurality of local maximum points or local minimum points exist on a characteristic line representing a relation between the VT and an air amount. An engine 10 includes VVTs 42 and 44 and the like. When a predetermined operation condition that a plurality of local maximum points exist on a load characteristic line representing a relation between the VT of an intake valve 32 and a load KL is established, an ECU 60 first calculates the VT corresponding to a maximum value KLmax of the load KL as a maximum air amount VT (VTmax). Subsequently, if the maximum value KLmax of the load is less than a target KL, the ECU 60 changes the VT towards VTmax. Thus, the direction in which the VT is changed is determined based on VTmax that is calculated irrespective of a change tendency (slope) of the characteristic line or the like at the current time. Therefore, even when a plurality of local maximum points exist on a characteristic line of an air amount index, it is possible to prevent the VT from being guided by the slope of a characteristic line or the like and latching onto a local maximum point that is not the optimal point.

    摘要翻译： 本发明的目的是即使在表示VT与空气量之间的关系的特征线上存在多个局部最大点或局部最小点的情况下也适当地控制气门正时（VT）。 发动机10包括VVT42和44等。 当建立表示进气门32的VT与负载KL之间的关系的负载特性线上存在多个局部最大点的预定操作条件时，ECU60首先计算与最大值KLmax相对应的VT 负载KL作为最大空气量VT（VTmax）。 随后，如果负载的最大值KLmax小于目标KL，则ECU60将VT改变为VTmax。 因此，根据当前时刻的特征线等的变化趋势（斜率）而计算出的VTmax来确定VT变化的方向。 因此，即使在空气量指标的特征线上存在多个局部最大点，也可以防止VT被特征线等的斜率引导，并且锁定到局部最大点 不是最优点。