公开(公告)号：US20180283344A1

公开(公告)日：2018-10-04

申请号：US15573922

申请日：2016-05-09

Applicant: DENSO CORPORATION

Inventor： Shun SUGITA ,  Shunichi TAKEDA

IPC: F02P5/15 ,  F02P3/04 ,  F02P5/04 ,  F02D41/14

CPC classification number: F02P5/1502 ,  F02D41/1454 ,  F02D2200/0406 ,  F02D2200/101 ,  F02P3/04 ,  F02P3/0442 ,  F02P3/0892 ,  F02P5/045 ,  F02P5/1504 ,  F02P9/002 ,  F02P9/007 ,  F02P15/10 ,  Y02T10/46 ,  F02P3/02 ,  F02P3/0876

Abstract: An ignition apparatus for an internal combustion engine is provided. The ignition apparatus includes an ECU. The ECU calculates a target value E* of an energy input amount of energy inputted into a spark plug based on an in-cylinder flow velocity v, a cylinder pressure P, and an air-fuel ratio AFR. The ECU also calculates a command value I* of a secondary current based on the in-cylinder flow velocity and control an operation of a second circuit according to the target value E* and the command value I*. The calculation of the target value E* using the in-cylinder flow velocity v, the cylinder pressure P, and the air fuel ratio AFR enables the energy input amount to be controlled according to the operating state of the internal combustion engine. The calculation of the command value I* based on the in-cylinder flow velocity v enables the secondary current to be controlled so as to eliminate a risk of the blowout of sparks. The ignition apparatus is, thus, capable of variably changing the amount of energy inputted to the spark plug to improve the fuel consumption.

公开(公告)号：US20240213855A1

公开(公告)日：2024-06-27

申请号：US18599557

申请日：2024-03-08

Applicant: DENSO CORPORATION

Inventor： Shun SUGITA ,  Masaharu SAKAI ,  Kazutoshi NISHINAKAMURA ,  Jiro HAYASHI

IPC: H02K9/22 ,  B64C29/00 ,  B64D27/357 ,  H02K5/04 ,  H02K7/14

CPC classification number: H02K9/22 ,  B64D27/357 ,  H02K5/04 ,  H02K7/14 ,  B64C29/0016

Abstract: An EDS includes a motor housing and an inverter housing. The inverter housing includes inverter fins. The motor housing includes motor fins and motor guide plates. The motor fins and the motor guide plates are provided on an outer peripheral surface. Each of the motor guide plates is aligned with the motor fins along the outer peripheral surface. The motor guide plate guides air sent by a blower fan in a circumferential direction to flow toward the motor fins and the inverter fins. The motor guide plate is bent in a convex shape to bulge toward an upstream side in an axial direction.

公开(公告)号：US20190027902A1

公开(公告)日：2019-01-24

申请号：US16037332

申请日：2018-07-17

Applicant: DENSO CORPORATION

Inventor： Shohei ISHIDA ,  Noriaki NISHIO ,  Shun SUGITA ,  Yuya ABE

IPC: H01T13/32 ,  H01T13/02

CPC classification number: H01T13/32 ,  H01T13/02 ,  H01T13/467

Abstract: A spark plug includes a main ground electrode having a main connecting portion connected to the housing and forming a discharge gap between the main ground electrode and the center electrode, and a sub ground electrode having a sub connecting portion connected to the housing. The direction on which the main connecting portion and a plug center axis are arranged is set to be perpendicular to an air flow direction of an air stream in the combustion chamber. The sub connecting portion is located in a downstream side than the main connecting portion. The tip end position of the sub ground electrode in the plug axial direction is located in farther tip end side than that of the main ground electrode is. The sub ground electrode is configured such that an end point of the discharge spark is movable on the sub ground electrode.

公开(公告)号：US20240317416A1

公开(公告)日：2024-09-26

申请号：US18679884

申请日：2024-05-31

Applicant: DENSO CORPORATION

Inventor： Yuichi TAKEMURA ,  Shun SUGITA ,  Shingo NAKATA

IPC: B64D33/08 ,  B64C29/00 ,  B64D27/30 ,  G01K1/02 ,  G01K3/00

CPC classification number: B64D33/08 ,  G01K1/026 ,  G01K3/005 ,  B64C29/0008 ,  B64D27/30

Abstract: A control device is configured to control an electric flight vehicle. The electric flight vehicle includes an electric drive device configured to drive and rotate a rotor blade and a cooling unit configured to cool the drive device. The control device includes a temperature acquisition unit and a cooling determination unit. The temperature acquisition unit is configured to acquire temperature of the drive device as a device temperature. The cooling determination unit is configured to determine, according to the device temperature, whether a cooling-related abnormality has occurred as an abnormality related to cooling of the drive device by the cooling unit.

公开(公告)号：US20240208662A1

公开(公告)日：2024-06-27

申请号：US18600936

申请日：2024-03-11

Applicant: DENSO CORPORATION

Inventor： Hideaki SUZUKI ,  Masaharu SAKAI ,  Kazutoshi NISHINAKAMURA ,  Shun SUGITA ,  Haruhiko WATANABE ,  Jiro HAYASHI

IPC: B64D33/10

CPC classification number: B64D33/10

Abstract: An EDS includes a motor housing and an inverter housing. The inverter housing includes inverter fins. The motor housing includes forward inclined fins serving as motor fins. The forward inclined fins are provided on an outer peripheral surface. The forward inclined fins are inclined in a circumferential direction with respect to a motor axis. The forward inclined fins extend straight in a direction inclined with respect to the motor axis. The entire of each of the forward inclined fins is an inclined portion. In each of the forward inclined fins, a fin downstream end is located at a position separated from a fin upstream end toward a downstream side in the circumferential direction.

公开(公告)号：US20240092183A1

公开(公告)日：2024-03-21

申请号：US18522792

申请日：2023-11-29

Applicant: DENSO CORPORATION

Inventor： Keita FUJII ,  Mariko HASHIMOTO ,  Shun SUGITA ,  Naoki TANIMOTO

IPC: B60L15/20 ,  B08B1/00 ,  B08B1/02 ,  B08B3/02 ,  B60L3/12 ,  B64D31/00 ,  B64F5/30 ,  G05D1/10

CPC classification number: B60L15/20 ,  B08B1/002 ,  B08B1/02 ,  B08B3/022 ,  B60L3/12 ,  B64D31/00 ,  B64F5/30 ,  G05D1/101 ,  B60L2200/10 ,  B64C29/0008

Abstract: A control apparatus, which controls a drive motor that drives a rotor installed in an electrical aircraft, instructs the drive motor to selectively operate in at least two motor-control modes. The at least two motor-control modes include a flying motor-control mode for causing the electrical aircraft to fly, and a cleaning motor-control mode for cleaning the rotor. The control apparatus controls, in the cleaning motor-control mode, the drive motor such that a rotational frequency of the drive motor is lower than a predetermined human-audible frequency range.