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2340 条记录 (耗时 0.028 秒)

    Solenoid valve control device
    4.
    发明授权
    Solenoid valve control device 有权

    公开(公告)号：US11859584B2

    公开(公告)日：2024-01-02

    申请号：US17925627

    申请日：2021-02-05

    申请人： Hitachi Astemo, Ltd.

    发明人： Hirotaka Nakai ,  Osamu Mukaihara ,  Toshihiro Aono

    IPC分类号： F02M59/36 ,  F02D41/34 ,  F02D45/00

    CPC分类号： F02M59/366 ,  F02D41/34 ,  F02D45/00

    摘要： Provided is a solenoid valve control device capable of detecting a motion of a valve body in response to a drive command without adding a special circuit.
    According to the present invention, a solenoid valve control device controls opening and closing of a solenoid valve in an internal combustion engine system including: a fuel pump including a plunger that that increases or decreases a volume of a pressurizing chamber by moving up and down with rotation of a pump drive cam, a solenoid valve for sucking fuel into the pressurizing chamber, and a discharge valve for discharging fuel in the pressurizing chamber; and a fuel rail (common rail) that accumulates fuel discharged by the fuel pump. The solenoid valve control device includes a control unit that determines whether or not closing of the solenoid valve has succeeded based on fuel pressure 604 of the fuel rail, or calculates a discharge amount by closing the solenoid valve based on the fuel pressure of the fuel rail.

    Control device for internal combustion engine
    5.
    发明授权
    Control device for internal combustion engine 有权

    公开(公告)号：US11802534B2

    公开(公告)日：2023-10-31

    申请号：US17595680

    申请日：2020-03-27

    申请人： Hitachi Astemo, Ltd.

    发明人： Eiichirou Ohata

    IPC分类号： F02P3/04 ,  F02D41/00 ,  F02P15/08 ,  F02P5/15 ,  F02D37/02 ,  F02D41/34

    CPC分类号： F02P3/0414 ,  F02D41/0047 ,  F02P5/1516 ,  F02P15/08 ,  F02D37/02 ,  F02D41/005 ,  F02D41/34 ,  F02P3/04

    摘要： The present invention is provided to suppress the power consumption, the calorific value, and the volume of an ignition device in an internal combustion engine while suppressing failures in igniting fuel by an ignition plug. To achieve this, a control device 1 for the internal combustion engine includes an ignition control unit that controls energization of an ignition coil 300 that gives electric energy to an ignition plug 200 that discharges in a cylinder 150 of an internal combustion engine 100 to ignite fuel. The ignition control unit controls energization of the ignition coil 300 so that first electric energy is released from the ignition coil 300 while second electric energy is released as electric energy superposed on the first electric energy, the second electric energy changing based on a gas state around the ignition plug 200.

    Powertrain system
    7.
    发明授权
    Powertrain system 有权

    公开(公告)号：US11536211B2

    公开(公告)日：2022-12-27

    申请号：US16918127

    申请日：2020-07-01

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Shintaro Hotta ,  Takashi Kawai ,  Shunsuke Fushiki ,  Hideto Wakabayashi ,  Hirokazu Ito

    IPC分类号： F02D41/06 ,  F02D41/02 ,  B60K6/24 ,  B60K6/26 ,  B60K6/28 ,  F01N3/28 ,  F02B75/20 ,  F02D41/00 ,  F02D41/34 ,  F02M61/14 ,  F02N11/04 ,  F02P5/04 ,  F02B75/18

    摘要： A powertrain system includes a port injection internal combustion engine. A first start process is a process in which fuel is enclosed in a compression stroke cylinder when the engine is stopped, and based on a stored crank stop position, ignition is performed in a first cycle of the compression stroke cylinder upon engine start. A second start process is a process in which, based on the stored crank stop position, fuel injection is performed for an intake stroke cylinder while the engine is stopped, and based on the stored crank stop position, ignition is performed in the first cycle of the intake stroke cylinder upon engine start. When a catalyst temperature at the time engine start is requested is equal to or higher than a first threshold, a control device starts the internal combustion engine by at least one of the first start process and the second start process.

    Port Injection System For Reduction Of Particulates From Turbocharged Direct Injection Gasoline Engines
    9.
    发明申请
    Port Injection System For Reduction Of Particulates From Turbocharged Direct Injection Gasoline Engines 有权

    公开(公告)号：US20220282675A1

    公开(公告)日：2022-09-08

    申请号：US17752266

    申请日：2022-05-24

    申请人： Ethanol Boosting Systems, LLC

    发明人： Daniel R. Cohn ,  Leslie Bromberg

    IPC分类号： F02D37/02 ,  F02D41/00 ,  F02D41/34 ,  F02D41/30 ,  F02P5/152 ,  F02P5/145 ,  F02D41/38 ,  F02D41/06

    摘要： The present invention describes a fuel-management system for minimizing particulate emissions in turbocharged direct injection gasoline engines. The system optimizes the use of port fuel injection (PFI) in combination with direct injection (DI), particularly in cold start and other transient conditions. In the present invention, the use of these control systems together with other control systems for increasing the effectiveness of port fuel injector use and for reducing particulate emissions from turbocharged direct injection engines is described. Particular attention is given to reducing particulate emissions that occur during cold start and transient conditions since a substantial fraction of the particulate emissions during a drive cycle occur at these times. Further optimization of the fuel management system for these conditions is important for reducing drive cycle emissions.

    METHOD FOR OPERATING A TWO STROKE ENGINE
    10.
    发明申请
    METHOD FOR OPERATING A TWO STROKE ENGINE 有权

    公开(公告)号：US20220136453A1

    公开(公告)日：2022-05-05

    申请号：US17517453

    申请日：2021-11-02

    申请人： Andreas Stihl AG & Co. KG

    发明人： Klaus Geyer ,  Johannes Alber ,  Johann-Sebastian Renz

    IPC分类号： F02D41/34 ,  F02D41/20

    摘要： A method for operating the two stroke engine provides that the fuel valve is controlled after the starting process in at least a quasi-steady state such that, on the basis of uninterruptedly successive blocks of successive revolutions of the crankshaft, the fuel valve is opened and closed exactly once within each block. Each block includes from two to twenty revolutions of the crankshaft. The fuel valve is opened over a crankshaft angle (α) of more than 360° within one block in at least one operating state. A control device is provided for controlling the fuel valve. A quasi-steady state of the two stroke engine is a state in which the throttle element is adjusted by less than 10% of the maximum adjustment of the throttle element over a crankshaft angle (α) of 360°.