公开(公告)号：US20190291599A1

公开(公告)日：2019-09-26

申请号：US16297881

申请日：2019-03-11

Applicant: DENSO CORPORATION

Inventor： Shinji ANDOU ,  Satoru YOSHIKAWA ,  Tetsuji MITSUDA

IPC: B60L53/24 ,  H02J7/00 ,  H02J7/14 ,  B64C39/02 ,  G05D1/00 ,  B60L50/10 ,  B60L50/50

Abstract: An electric power supply apparatus includes a first power supply unit, a second power supply unit, diodes, detection units, and an electric power control unit. The first power supply unit and the second power supply unit supply electric power to a thruster which is a load. The diodes are provided in the first power supply unit and the second power supply unit, respectively, to restrict reverse flow of currents to the power supply units. The detection units are provided between the first power supply unit and the thruster and between the second power supply unit and the thruster, respectively, to detect at least one of a voltage and a current. The electric power control unit controls electric power transmission between the first power supply unit and the second power supply unit based on detection values of the detection units.

公开(公告)号：US20180062497A1

公开(公告)日：2018-03-01

申请号：US15547602

申请日：2016-02-05

Applicant: DENSO CORPORATION

Inventor： Tatsuya MURAKAMI ,  Yuji HAYASHI ,  Satoru YOSHIKAWA ,  Satoshi TAKADA ,  Masakazu FUKADA

IPC: H02M1/08 ,  H02M7/5387

CPC classification number: H02M7/53871 ,  H02M1/32 ,  H02M3/3376 ,  H02M7/48 ,  H02M7/539 ,  H02M2001/0009 ,  H02M2001/0054 ,  Y02B70/1491

Abstract: A power conversion device includes an inverter which converts a DC power supplied thereto from a power supply device to an AC power using an operation of a switching element and outputs the AC power toward a load a current meter which measures an output current from the inverter, and a control unit which controls the operation of the switching element to change an output voltage waveform from the inverter. The control unit changes the output voltage waveform on the basis of the measured output current.

公开(公告)号：US20210026375A1

公开(公告)日：2021-01-28

申请号：US17060414

申请日：2020-10-01

Applicant: SOKEN, INC. ,  DENSO CORPORATION

Inventor： Satoru YOSHIKAWA ,  Takenori MATSUE ,  Tetsuji MITSUDA ,  Masataka HIRAI

IPC: G05D1/10 ,  G08G5/00 ,  B64C39/02

Abstract: An aircraft includes a main body, a structure member, and a retroreflective member. The structure member is provided below the main body in a gravity direction. The retroreflective member is provided in the structure member and reflects a light, which is emitted from a ground facility, toward the ground facility.

公开(公告)号：US20200278697A1

公开(公告)日：2020-09-03

申请号：US16734448

申请日：2020-01-06

Applicant: DENSO CORPORATION

Inventor： Satoru YOSHIKAWA ,  Takenori MATSUE ,  Tetsuji MITSUDA ,  Masataka HIRAI

IPC: G05D1/08 ,  B64C39/02

Abstract: A thruster controller is used in a flying device that has at least two thrusters and a main controller that outputs an instruction value to the thruster for controlling a thrust of the thruster. The thruster controller includes an instruction value obtainer and an instruction value generator. The instruction value obtainer obtains an instruction value that is output from the main controller to the thruster based on an assumption that a propeller pitch is fixed. The instruction value generator outputs, to a pitch changing mechanism of the thruster, a propeller pitch instruction value generated from the obtained instruction value for setting the propeller pitch, and outputs, to a motor, a corrected rotation number instruction value for setting a rotation number of the motor by correcting the instruction value based on the propeller pitch instruction value.