公开(公告)号：US20160174407A1

公开(公告)日：2016-06-16

申请号：US14865473

申请日：2015-09-25

Applicant: DENSO CORPORATION

Inventor： Masashi INABA ,  Naoki TANIMOTO ,  Kiyokazu KAMEI

IPC: H05K7/14 ,  H05K9/00 ,  H01F5/00 ,  H05K5/02

CPC classification number: H05K7/1427 ,  H01F5/00 ,  H01F27/06 ,  H05K5/0073 ,  H05K5/0204 ,  H05K9/002 ,  H05K9/0049

Abstract: An in-vehicle electronic control unit includes a circuit board equipped with a coil and a power supply circuit, a resin member covering the circuit board, and a metal bracket fixed to the resin member for attaching the circuit board to a vehicle. The metal bracket includes a first shield portion and a second shield portion. The first shield portion is arranged to only a part of an upper surface of the resin member so that when projected in a winding axis direction of the coil, the first shield portion overlaps at least a part of the coil. The second shield portion extends from the first shield portion in the winding axis direction of the coil and is arranged to only a part of a side surface of the resin member.

Abstract translation: 车载电子控制单元包括配备有线圈和电源电路的电路板，覆盖电路板的树脂构件和固定到用于将电路板附接到车辆的树脂构件的金属支架。 金属支架包括第一屏蔽部分和第二屏蔽部分。 第一屏蔽部分仅布置在树脂部件的上表面的一部分上，使得当沿着线圈的卷绕轴线方向投影时，第一屏蔽部分与线圈的至少一部分重叠。 第二屏蔽部从线圈的卷绕轴方向上的第一屏蔽部延伸，并且仅布置在树脂部件的侧表面的一部分上。

公开(公告)号：US20130168136A1

公开(公告)日：2013-07-04

申请号：US13726827

申请日：2012-12-26

Applicant: DENSO CORPORATION

Inventor： Masashi INABA ,  Akito ITOU

IPC: H05K1/02

CPC classification number: H05K1/0201 ,  H05K1/0206 ,  H05K1/0207 ,  H05K2201/10166 ,  H05K2201/10969

Abstract: A multilayer printed circuit board includes an insulating substrate, circuit layers arranged in the insulating substrate, an electronic component, an electrode disposed on the circuit layer exposed from a surface of the insulating substrate and including a soldered portion at which a terminal of the electronic component is soldered, an internal layer conductor disposed on the circuit layer located inside the insulating substrate and defining through holes in a radial manner centering on the soldered portion, a heat releasing conductor disposed on the circuit layer next to the circuit layer on which the internal layer conductor is disposed, and connection vias inserted in the through holes and coupling the electrode and the heat releasing conductor so as to enable a heat transfer between the electrode and the heat releasing conductor. The internal layer conductor and the heat releasing conductor overlap a whole area of the soldered portion.

Abstract translation: 多层印刷电路板包括绝缘基板，布置在绝缘基板中的电路层，电子部件，设置在从绝缘基板的表面露出的电路层上的电极，并且包括焊接部分，电极部件的端子 焊接，设置在位于绝缘基板内部的电路层上的内部层导体，以以焊接部分为中心的径向方式限定通孔;布置在电路层旁边的放热导体，其中内层 布置导体，并且连接通孔插入到通孔中并联接电极和散热导体，以便能够在电极和放热导体之间传热。 内层导体和散热导体与焊接部分的整个区域重叠。

公开(公告)号：US20220275765A1

公开(公告)日：2022-09-01

申请号：US17676938

申请日：2022-02-22

Applicant: DENSO CORPORATION

Inventor： Masashi INABA ,  Tomoki FUJINO

IPC: F02D41/20 ,  F02D41/28 ,  F02D41/40 ,  F02D41/22

Abstract: An energization control unit is configured to perform a constant current control by repeatedly switching between an on-state and an off-state of at least one upstream switch provided in an energization path of a coil of a fuel injection valve to control opening of the fuel injection valve in a drive period in which the coil is energized to drive the fuel injection valve. A current detection unit is configured to detect a coil current flowing through the coil. A valve-opening detection unit is configured to detect valve-opening timing of the fuel injection valve based on a change in at least one frequency spectrum of the coil current in a constant current control period in which the constant current control is performed. A valve-opening correction unit is configured to correct valve opening of the fuel injection valve based on a detection result of the valve-opening detection unit.

公开(公告)号：US20220186699A1

公开(公告)日：2022-06-16

申请号：US17540755

申请日：2021-12-02

Applicant: DENSO CORPORATION

Inventor： Masashi INABA

IPC: F02M65/00 ,  F02M51/06 ,  F02M61/10

Abstract: An injection control device includes an injector and a detection unit. The injector includes: an injection hole; a movable part; a seat portion; a valve housing; a magnetic field application unit; and a detection sensor. The movable part opens and closes the injection hole by reciprocal movement. The seat portion when seated by the movable part closes the injection hole, and when the movable part lifted therefrom opens the injection hole. The valve housing accommodates the movable part in a reciprocally movable manner. The magnetic field application unit is installed on an outer circumference of the valve housing and applies a magnetic field to the movable part and the valve housing. The detection sensor outputs a detection signal according to a size of a distance between the valve housing and the movable part.

公开(公告)号：US20210404403A1

公开(公告)日：2021-12-30

申请号：US17357012

申请日：2021-06-24

Applicant: DENSO CORPORATION

Inventor： Xinyu GUO ,  Masashi INABA

IPC: F02D41/20

Abstract: An injection control device executes a current-drive of a fuel injection valve to inject fuel into an engine. The injection control device includes: a drive controller that controls energization by correcting an energization instruction time when injecting the fuel by executing the current-drive of the fuel injection valve; an estimated energization time correction amount calculation unit that calculates an estimated energization time correction amount; and a deterioration determination unit that determines deterioration of the charging capacitor based on a calculated estimated energization time correction amount and the energization time correction amount.

公开(公告)号：US20210381457A1

公开(公告)日：2021-12-09

申请号：US17339065

申请日：2021-06-04

Applicant: DENSO CORPORATION

Inventor： Masashi INABA ,  Yusuke SHIMIZU ,  Hiroki KAKUI

IPC: F02D41/20 ,  F02D41/30

Abstract: An injection control device includes: a boost controller performing a boost switching control of a boost switch to charge a boost capacitor and supplying a boost power from a battery power supply; a boost voltage monitor monitoring the boost voltage; and a boost monitor timing controller setting a section from a predetermined time after an on-edge of the boost switch to an off-edge timing in a section monitor mode as a boost monitor section. The boost controller stops boosting by stopping the boost switching control when the boost voltage is equal to or higher than a boost stop threshold value in the boost monitor section.

公开(公告)号：US20210372338A1

公开(公告)日：2021-12-02

申请号：US17331212

申请日：2021-05-26

Applicant: DENSO CORPORATION

Inventor： Yohei SUGANUMA ,  Ryohei TAKAHASHI ,  Hiroyuki FUKUDA ,  Masashi INABA

IPC: F02D41/20 ,  F02M51/06 ,  F02D41/24

Abstract: An injection control device includes: a conversion coefficient setter setting a conversion coefficient for each injection when a fuel injection valve is driven by an electric current to inject fuel from the fuel injection valve; and an area correction unit calculating an energization time correction amount by performing area correction using the conversion coefficient for each injection regardless of whether a drive current of the fuel injection valve has reached a target peak current or not.

公开(公告)号：US20200284214A1

公开(公告)日：2020-09-10

申请号：US16805060

申请日：2020-02-28

Applicant: DENSO CORPORATION

Inventor： Masashi INABA ,  Hiroyuki FUKUDA ,  Katsuya MINAMIJIMA

IPC: F02D41/26 ,  F02M51/06 ,  F02D41/30 ,  G01R31/00

Abstract: An injection controller includes a control IC outputting an energization instruction signal to apply a peak current to a fuel injection valve (i.e., an instruction TQ), and a current monitor unit detecting an electric current flowing in the fuel injection valve. The control IC corrects an output OFF time of the energization instruction signal based on a difference between (i) an integrated current of an ideal current profile which serves as a target current before reaching the peak current and (ii) an integrated current of an energization current in the fuel injection valve detected by the current monitor unit (i.e., an effective TQ).