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13 条记录 (耗时 0.019 秒)

    Control Device for Internal Combustion Engine
    2.
    发明申请
    Control Device for Internal Combustion Engine 审中-公开
    内燃机控制装置

    公开(公告)号：US20160003182A1

    公开(公告)日：2016-01-07

    申请号：US14768709

    申请日：2014-02-07

    申请人： HITACHI AUTOMOTIVE SYSTEMS, LTD.

    发明人： Yoshihisa FUJII ,  Takao FUKUDA ,  Masahiro TOYOHARA

    IPC分类号： F02D41/20 ,  F02M51/06 ,  F02D41/30

    CPC分类号： F02D41/20 ,  F02D41/221 ,  F02D41/26 ,  F02D41/30 ,  F02D41/402 ,  F02D2041/2003 ,  F02D2041/2051 ,  F02M51/06

    摘要： A control device is provided which prevents a temperature increase within an ECU by suppressing heat generation in the ECU without using a new cooling device such as a blow fan. In one step, an open valve voltage target value is calculated. An open valve voltage is a voltage applied to a fuel injection valve when opening the fuel injection valve. As the number of times of the multi-stage injections increases, an opportunity to boost the open valve voltage increases, heat is generated in the open valve voltage boosting section, a temperature within the ECU excessively increases, and there is a concern that an electronic component within the ECU malfunctions or fails. Thus, a temperature sensor is provided on an inside of the ECU and if an ECU temperature is high, it is determined that heat is generated in the open valve voltage generating section and the open valve voltage target value is reduced.

    摘要翻译： 提供一种控制装置，其通过抑制ECU中的发热而不使用诸如吹风扇的新的冷却装置来防止ECU内的温度升高。 在一个步骤中，计算打开的阀电压目标值。 打开阀门电压是打开燃料喷射阀时施加到燃料喷射阀的电压。 随着多级喷射的次数增加，提高打开阀电压的机会增加，在开阀升压部中产生热量，ECU内的温度过度增加，并且担心电子 ECU内的组件发生故障或失败。 因此，在ECU的内部设置有温度传感器，如果ECU温度高，则判断为在开阀电压产生部分产生热量，并且打开阀电压目标值被减小。

    Drive Device for Fuel Injection Device, and Fuel Injection System
    3.
    发明申请
    Drive Device for Fuel Injection Device, and Fuel Injection System 有权
    燃油喷射装置驱动装置和燃油喷射系统

    公开(公告)号：US20160177855A1

    公开(公告)日：2016-06-23

    申请号：US14907908

    申请日：2013-07-29

    申请人： HITACHI AUTOMOTIVE SYSTEMS, LTD.

    发明人： Ryo KUSAKABE ,  Motoyuki ABE ,  Ayumu HATANAKA ,  Toshihiro AONO ,  Teppei HIROTSU ,  Hideyuki SAKAMOTO ,  Masahiro TOYOHARA ,  Osamu MUKAIHARA ,  Takao FUKUDA ,  Yoshihito YASUKAWA ,  Akiyasu MIYAMOTO

    IPC分类号： F02D41/20 ,  F02M65/00 ,  F02M51/06

    CPC分类号： F02D41/20 ,  F02D41/0085 ,  F02D2041/2003 ,  F02D2041/2037 ,  F02D2041/2055 ,  F02D2041/2058 ,  F02D2200/063 ,  F02M51/0685 ,  F02M61/1833 ,  F02M65/005

    摘要： A drive device capable of detecting individual variations of an injection quantity of a fuel injection device of each cylinder and adjusting a current waveform provided to an injection pulse width and a solenoid such that the individual variations of the fuel injection devices are reduced. The fuel injection device in the present invention includes a valve body that closes a fuel passage by coming into contact with a valve seat and opens the fuel passage by separating from the valve seat and a magnetic circuit constructed of a solenoid, a fixed core, a nozzle holder, a housing, and a needle and when a current is supplied to the solenoid, a magnetic suction force acts on the needle and the needle has a function to open the valve body by colliding against the valve body after performing a free running operation and changes of acceleration of the needle due to collision of the needle against the valve body are detected by a current flowing through the solenoid.

    摘要翻译： 一种驱动装置，能够检测每个气缸的燃料喷射装置的喷射量的各个变化，并且调节提供给喷射脉冲宽度的电流波形和螺线管，使得燃料喷射装置的各个变化减小。 本发明的燃料喷射装置包括阀体，该阀体通过与阀座接触而关闭燃料通路，并且通过与阀座分离而打开燃料通道，以及由螺线管，固定铁芯， 喷嘴保持器，壳体和针，并且当向螺线管供应电流时，磁吸力作用在针上，并且针具有通过在执行自由运行操作之后与阀体碰撞来打开阀体的功能 并且通过流过螺线管的电流来检测针头与阀体的碰撞引起的针的加速度的变化。

    Electromagnetic Valve Control Unit and Internal Combustion Engine Control Device Using Same
    4.
    发明申请
    Electromagnetic Valve Control Unit and Internal Combustion Engine Control Device Using Same 审中-公开
    电磁阀控制装置及内燃机控制装置

    公开(公告)号：US20160076498A1

    公开(公告)日：2016-03-17

    申请号：US14784653

    申请日：2014-03-07

    申请人： HITACHI AUTOMOTIVE SYSTEMS, LTD.

    发明人： Toshihiro AONO ,  Motoyuki ABE ,  Ryo KUSAKABE ,  Teppei HIROTSU ,  Ayumu HATANAKA ,  Hideyuki SAKAMOTO ,  Takao FUKUDA ,  Masahiro TOYOHARA ,  Osamu MUKAIHARA

    IPC分类号： F02M51/06

    CPC分类号： F02M51/061 ,  F02D41/20 ,  F02D41/2467 ,  F02D2041/1432 ,  F02D2041/2051 ,  F02D2041/2055 ,  F02D2041/2058 ,  F02M51/0671

    摘要： Provided are an electromagnetic valve control unit and a fuel injection control device using the same that can precisely detect a change of an operating state of an electromagnetic valve, that is, a valve opening time or a valve closing time of the electromagnetic valve, precisely correct a drive voltage or a drive current applied to the electromagnetic valve, and appropriately control opening/closing of the electromagnetic valve, with a simple configuration. In an electromagnetic valve control unit for controlling opening/closing of an electromagnetic valve by a drive voltage and a drive current to be applied, the drive voltage and the drive current applied to the electromagnetic valve are corrected on the basis of a detection time of an inflection point from time series data of the drive voltage and the drive current when the electromagnetic valve is opened/closed.

    摘要翻译： 提供一种电磁阀控制单元和使用该电磁阀控制单元的燃料喷射控制装置，其能够精确地检测电磁阀的操作状态的变化，即电磁阀的打开时间或阀关闭时间，精确地正确 施加到电磁阀的驱动电压或驱动电流，并且以简单的结构适当地控制电磁阀的打开/关闭。 在用于通过驱动电压和施加的驱动电流来控制电磁阀的打开/关闭的电磁阀控制单元中，基于检测时间来校正施加到电磁阀的驱动电压和驱动电流 来自驱动电压的时间序列数据和电磁阀打开/关闭时的驱动电流的拐点。

    SOLENOID VALVE DRIVE DEVICE
    5.
    发明申请
    SOLENOID VALVE DRIVE DEVICE 有权

    公开(公告)号：US20210249170A1

    公开(公告)日：2021-08-12

    申请号：US16973271

    申请日：2019-06-11

    申请人： Hitachi Automotive Systems, Ltd.

    发明人： Takuya KATAGIRI ,  Takao FUKUDA ,  Yuuji ISHIDA

    IPC分类号： H01F7/06 ,  F16K31/06

    摘要： Provided is a solenoid valve drive device capable of accurately controlling a hysteresis value of a drive current for driving a solenoid valve. The solenoid valve drive device according to the present invention controls a set value of a hysteresis or a time width of the hysteresis based on a difference between an extreme value of the hysteresis in a peak hold period of a drive current and a set value of the extreme value.

    FUEL INJECTION CONTROL DEVICE
    6.
    发明申请
    FUEL INJECTION CONTROL DEVICE 审中-公开

    公开(公告)号：US20180142643A1

    公开(公告)日：2018-05-24

    申请号：US15570483

    申请日：2016-06-01

    申请人： HITACHI AUTOMOTIVE SYSTEMS, LTD.

    发明人： Takao FUKUDA

    IPC分类号： F02D41/34 ,  F02D41/20 ,  F02D45/00 ,  F02M61/18 ,  H03M1/68

    CPC分类号： F02D41/345 ,  F02D41/20 ,  F02D41/34 ,  F02D45/00 ,  F02D2041/2013 ,  F02D2041/2055 ,  F02D2250/14 ,  F02M61/1893 ,  H03M1/66 ,  H03M1/68 ,  Y02T10/44

    摘要： Provided is a fuel injection control device capable of improving detection accuracy of a singular point with respect to a characteristic of the fuel injection valve to be equal to or higher than an original time resolution of the A/D conversion, and capable of accurately detecting the singular point. A variable control part 24 variably controls a conversion timing of the A/D conversion part 221 such that the conversion timing of A/D conversion for physical quantity data related to driving of the fuel injection valve 10 is relatively changed, the A/D conversion part 221 acquires a plurality of time series data by performing A/D conversion on the physical quantity data at a conversion timing before change and at a conversion timing after change by the variable control part 24, and a detection part 223 detects a singular point with respect to the characteristic of the fuel injection valve 10 based on the plurality of time series data.

    ELECTRONIC CONTROL DEVICE
    8.
    发明申请
    ELECTRONIC CONTROL DEVICE 审中-公开

    公开(公告)号：US20190178928A1

    公开(公告)日：2019-06-13

    申请号：US16321345

    申请日：2017-07-07

    申请人： Hitachi Automotive Systems, Ltd.

    发明人： Masaki AOYAGI ,  Takao FUKUDA ,  Atsushi OKONOGI

    IPC分类号： G01R31/04 ,  F02D41/22

    摘要： Provided is an electronic control device capable of performing abnormality diagnosis of a digital input circuit without modifying the circuit configuration. Included are: an external connection terminal to which an external power supply is connected; a first capacitor having one end connected to the external connection terminal and the other end connected to circuit ground; a microcomputer having a D/I port which is an input/output port and to which a voltage of the external connection terminal is input; an RC filter provided between the D/I port and the first capacitor, the RC filter including a first resistor and a second capacitor; and a second resistor for dividing an output voltage of the D/I port together with the first resistor and applying the divided voltage to one end of the first capacitor, in which the microcomputer outputs a predetermined voltage from the D/I port and diagnoses a connection condition of the external connection terminal on the basis of a voltage input to the D/I port after the first capacitor is charged with the predetermined voltage.