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公开(公告)号：US20210307216A1
公开(公告)日：2021-09-30
申请号：US17268168
申请日：2019-06-28
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Masahiro TOYAMA , Isao HODA , Umberto PAOLETTI , Hideyuki SAKAMOTO
Abstract: An electronic control device includes: a housing accommodating a board on which an electronic component is mounted; and a guard pattern formed on an outer peripheral portion of the board. The guard pattern and a ground pattern of a circuit in the circuit board are connected to each other in a vicinity of an intermediate point of fixed positions where an upper portion of the housing and a lower portion of the housing are fixed to each other.
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公开(公告)号：US20210163027A1
公开(公告)日：2021-06-03
申请号：US17044937
申请日：2019-04-05
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Taisuke UETA , Satoshi TSUTSUMI , Yuta MUTO , Hideyuki SAKAMOTO
IPC: B60W50/035 , G07C5/08 , B60W50/02
Abstract: An electronic control device is mounted on a vehicle equipped with a plurality of hardware capable of operation, and comprises an information collection unit which collects external information of the vehicle, a storage unit which stores a plurality of processing specifications which prescribe processing to be executed by each of the plurality of hardware and the external information to be used by the plurality of hardware for performing operation, and an applied condition, which is a condition related to the external information and a status of the plurality of hardware for applying each of the plurality of processing specifications, and a processing control unit which determines one processing specification among the plurality of processing specifications from a correspondence to the condition based on the collected external information and the status of the plurality of hardware, and controls the plurality of hardware based on the determined processing specification.
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公开(公告)号：US20210015008A1
公开(公告)日：2021-01-14
申请号：US16980534
申请日：2019-02-14
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Yoko OHKUBO , Masahiro TOYAMA , Hideyuki SAKAMOTO
Abstract: To provide an electronic control device capable of suppressing leakage of radio-frequency radiation noise, radiated from a noise source, to the outside.
The electronic control device includes a radio-frequency circuit 104 at least a part of which is driven at a radio frequency, a printed circuit board 101 on which a low-frequency circuit 103 that is driven at a low frequency is mounted, a housing 100 made of metal that includes therein the printed circuit board 101 together with the radio-frequency circuit 104 and the low-frequency circuit 103, a plurality of radio-frequency connectors 106a to 106f for transmitting and receiving signals related to the radio-frequency circuit 104 mounted on the printed circuit board 101 to and from the outside of the housing, a low-frequency connector 105 for transmitting and receiving signals related to the low-frequency circuit 103 mounted on the printed circuit board 101 to and from the outside of the housing, and a partition wall 203 for suppressing propagation of radiation noise, radiated by driving the radio-frequency circuit 104, to the low-frequency connector 105.-
公开(公告)号：US20190300009A1
公开(公告)日：2019-10-03
申请号：US16468619
申请日：2017-10-31
Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Inventor： Hideyuki SAKAMOTO , Teppei HIROTSU , Satoshi TSUTSUMI , Taisuke UETA
Abstract: A vehicle control device capable of improving safety, even when abnormality in the operation of an arithmetic processing unit occurs. A second microcomputer receives trajectory information transmitted from a first microcomputer via a communication line and calculates control commands to actuators to synchronize the arithmetic processing unit allowing the first and second microcomputers to be synchronized. The second microcomputer performs a calculation and compares the result with the calculation result of the first microcomputer so that the second microcomputer can accurately determine whether or not the first microcomputer is abnormal. When the abnormality occurs in the first microcomputer based on the determination, the actuators are controlled by switching to the control commands calculated by the second microcomputer which is synchronized with the arithmetic processing unit. Thus, the device performs seamless self-driving control without the occurrence of abrupt control gaps.
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公开(公告)号：US20190103863A1
公开(公告)日：2019-04-04
申请号：US15743121
申请日：2016-07-06
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Ryoichi INADA , Teppei HIROTSU , Hideyuki SAKAMOTO , Kouichi YAHATA , Keiji KADOTA
IPC: H03K17/082 , H02M1/32 , H02M1/08
Abstract: An object of the present invention is to diagnose an abnormality detecting circuit that detects an abnormality, such as an overcurrent of a power semiconductor, with the number of insulating elements to be additionally provided, inhibited from increasing. There are provided: a drive circuit configured to output a gate signal to a power semiconductor; an abnormality detecting circuit configured to detect an abnormality of the power semiconductor; and a diagnosis signal applying circuit configured to apply a diagnosis signal to the abnormality detecting circuit. The diagnosis signal applying circuit applies the diagnosis signal, on the basis of the gate signal output by the drive circuit.
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Patent Agency Ranking
公开(公告)号：US20160177855A1
公开(公告)日：2016-06-23
申请号：US14907908
申请日：2013-07-29
Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Inventor： Ryo KUSAKABE , Motoyuki ABE , Ayumu HATANAKA , Toshihiro AONO , Teppei HIROTSU , Hideyuki SAKAMOTO , Masahiro TOYOHARA , Osamu MUKAIHARA , Takao FUKUDA , Yoshihito YASUKAWA , Akiyasu MIYAMOTO
CPC classification number: F02D41/20 , F02D41/0085 , F02D2041/2003 , F02D2041/2037 , F02D2041/2055 , F02D2041/2058 , F02D2200/063 , F02M51/0685 , F02M61/1833 , F02M65/005
Abstract: 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.
Abstract translation: 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。
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27.发明申请公开(公告)号：US20160076498A1
公开(公告)日：2016-03-17
申请号：US14784653
申请日：2014-03-07
Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Inventor： Toshihiro AONO , Motoyuki ABE , Ryo KUSAKABE , Teppei HIROTSU , Ayumu HATANAKA , Hideyuki SAKAMOTO , Takao FUKUDA , Masahiro TOYOHARA , Osamu MUKAIHARA
IPC: F02M51/06
CPC classification number: F02M51/061 , F02D41/20 , F02D41/2467 , F02D2041/1432 , F02D2041/2051 , F02D2041/2055 , F02D2041/2058 , F02M51/0671
Abstract: 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.
Abstract translation: 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。
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公开(公告)号：US20210221402A1
公开(公告)日：2021-07-22
申请号：US17255748
申请日：2019-06-05
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Toshiaki NAKAMURA , Teppei HIROTSU , Hideyuki SAKAMOTO
Abstract: A prediction control device is realized which can respond to changes in the surrounding situations while the own vehicle is traveling and can perform a rapid operation during normal driving and in an emergency as if a person drives. The prediction control device includes a means (103, 104) for detecting a change amount and a change direction of surroundings and the own vehicle, and a means 105 for setting an initial value and a prediction period of a solution search calculation in a prediction control means based on the detection result. The means 105 for setting the initial value and the prediction period has a fail operational control mode in which the initial value and the prediction period set according to the change amount of the surroundings and the own vehicle is set with a previous calculation result of the solution search calculation to the initial value.
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公开(公告)号：US20210175145A1
公开(公告)日：2021-06-10
申请号：US16769642
申请日：2018-11-16
Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Inventor： Minami TERANISHI , Shinya KAWAKITA , Hideyuki SAKAMOTO
IPC: H01L23/373 , H05K7/20 , H01L23/00 , H01L23/522
Abstract: An electronic control device includes a substrate, a heat generating component mounted on the substrate, a heat dissipation unit thermally coupled to a surface of the heat generating component located on a side opposite to the substrate side, and a cooling mechanism thermally coupled to the heat dissipation unit. The heat dissipation unit includes a porous thermal conductor and a semi-cured resin which includes a heat conductive filler and is formed between at least the porous thermal conductor and the surface of the heat generating component.
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公开(公告)号：US20210046942A1
公开(公告)日：2021-02-18
申请号：US17041647
申请日：2019-02-08
Applicant: Hitachi Automotive Systems, Ltd.
Inventor： Daisuke TANAKA , Hideyuki SAKAMOTO
Abstract: An electronic control device is realized in which another microcomputer monitors the arithmetic processing load of the external environment recognition microcomputer without increasing the processing load of the external environment recognition microcomputer, and the control is shifted to the degeneration control microcomputer before the external environment recognition microcomputer is overloaded, and safety is improved. An arithmetic processing unit 1e of an external environment recognition microcomputer 1a transmits an arithmetic operation start to the output control unit if when the arithmetic processing starts, and transmits an arithmetic end when the arithmetic processing ends. An output control unit if changes the voltage of an output signal 1m to indicate the start and end of the arithmetic of the arithmetic processing unit 1e. A load state detection unit 1g of a control microcomputer 1b detects a voltage change of the signal 1m from the output control unit 1f, calculates a voltage change time T1, and transmits it to an overload determination unit 1h. When the overload determination unit 1h compares a specified value T′ with a voltage change time T1 and the arithmetic processing unit 1e determines that it is overloaded, a degeneration control microcomputer 2a is notified via a communication circuit 1c of the fact that the arithmetic processing unit is overloaded.
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