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1
EP2745910B1
Publication/Patent Number: EP2745910B1
Publication date: 2019-03-27
Application number: 13814815.0
Filing date: 2013-07-10
2
US10396698B2
Publication/Patent Number: US10396698B2
Publication date: 2019-08-27
Application number: 15/947,963
Filing date: 2018-04-09
Abstract: First pulse width modulation control is a control of generating a first pulse width modulation signal for a plurality of switching elements by comparison of modulated waves of voltage commands in phases based on a torque command for a motor with a carrier voltage, and performing switching of the plurality of switching elements. Second pulse width modulation control is a control of generating a second pulse width modulation signal for the plurality of switching elements based on a modulation factor of a voltage and a voltage phase based on the torque command and the number of pulses per unit period of an electrical angle of the motor, and performing switching of the plurality of switching elements. An electronic control unit is configured to switch the plurality of switching elements between the first pulse width modulation control and the second pulse width modulation control at irregular time intervals. First pulse width modulation control is a control of generating a first pulse width modulation signal for a plurality of switching elements by comparison of modulated waves of voltage commands in phases based on a torque command for a motor with a carrier voltage, and performing ...more ...less
3
US10374539B2
Publication/Patent Number: US10374539B2
Publication date: 2019-08-06
Application number: 15/907,596
Filing date: 2018-02-28
Abstract: A driving device includes a motor, an inverter configured to drive the motor by switching a plurality of switching elements, and an electronic control unit configured to set voltage commands of phases according to temporary voltage commands of the phases based on a torque command of the motor and perform switching control of the switching elements by generating PWM signals for the switching elements by using the voltage commands of the phases and a carrier voltage. The electronic control unit is configured to switch a method of setting the voltage commands between a first method and a second method for each irregular time interval. The first method is a method of setting the voltage commands without superposing harmonics to the temporary voltage commands, and the second method is a method of setting the voltage commands by superposing the harmonics to the temporary voltage command. A driving device includes a motor, an inverter configured to drive the motor by switching a plurality of switching elements, and an electronic control unit configured to set voltage commands of phases according to temporary voltage commands of the phases based on a torque ...more ...less
4
EP3222338B1
Publication/Patent Number: EP3222338B1
Publication date: 2019-05-22
Application number: 17168512.6
Filing date: 2013-09-03
5
US10279802B2
Publication/Patent Number: US10279802B2
Publication date: 2019-05-07
Application number: 15/708,342
Filing date: 2017-09-19
Abstract: As a control of an inverter, a first pulse width modulation control switches a plurality of switching elements by generating a first pulse width modulation signal of the switching elements, and a second pulse width modulation control switches the switching elements by generating a second pulse width modulation signal of the switching elements based on a voltage modulation rate, a voltage phase, and the number of pulses per unit cycle of an electrical angle of the motor based on the torque command and has a smaller number of switchings of the switching elements than the first pulse width modulation control. The first pulse width modulation control and the second pulse width modulation control are executed in a switched manner. Execution of the second pulse width modulation control as the control of the inverter is restricted when the quietness is needed, compared with when the quietness is not needed. As a control of an inverter, a first pulse width modulation control switches a plurality of switching elements by generating a first pulse width modulation signal of the switching elements, and a second pulse width modulation control switches the switching elements by generating ...more ...less
6
EP3459672A1
Publication/Patent Number: EP3459672A1
Publication date: 2019-03-27
Application number: 17819571.5
Filing date: 2017-03-15
Assignee: Hitachi, Ltd.
Abstract: To improve quality control of welding, there is included in resistance welding: a magnetic field measuring unit (205) disposed around a welded part and configured to measure a local current at the welded part; a high-speed camera (202) configured to capture an image for measuring local temperature at the welded part from variation of luminance of emission by capturing light emission state of the welded part; a comparison determination unit (106) configured to determine whether or not at least one of current information and temperature information has an abnormal value by comparing the current information calculated based on magnetic field information acquired from the magnetic field measuring unit with past current information and comparing the temperature information measured from an image of the high-speed camera (202) with past temperature information. To improve quality control of welding, there is included in resistance welding: a magnetic field measuring unit (205) disposed around a welded part and configured to measure a local current at the welded part; a high-speed camera (202) configured to capture an image for ...more ...less
7
US10288604B2
Publication/Patent Number: US10288604B2
Publication date: 2019-05-14
Application number: 14/431,523
Filing date: 2013-10-01
Abstract: The present invention has an object of providing a sugar derivative emitting blue fluorescence color which can be used for imaging of cells or intracellular molecules and a method for imaging cells using the derivative. Further, the present invention has an object of providing a method for detecting cancer cells at high accuracy by imaging, and an imaging agent used for this method. The present invention provides a fluorescently labeled sugar derivative having 3-carboxy-6,8-difluoro-7-hydroxycoumarin or 3-carboxymethyl-6,8-difluoro-7-hydroxy-4-methylcoumarin as a fluorescent molecular group in its molecule, and a cell imaging agent and an imaging method using the derivative. Further, the present invention provides an imaging agent and an imaging method for cancer cells using an L-glucose derivative having the above-described fluorescent molecular group in its molecule. The present invention has an object of providing a sugar derivative emitting blue fluorescence color which can be used for imaging of cells or intracellular molecules and a method for imaging cells using the derivative. Further, the present invention has an object of providing a ...more ...less
8
US2019210159A1
Publication/Patent Number: US2019210159A1
Publication date: 2019-07-11
Application number: 16/311,710
Filing date: 2017-03-15
Assignee: HITACHI, LTD.
Abstract: To improve quality control of welding, there is included in resistance welding: a magnetic field measuring unit (205) disposed around a welded part and configured to measure a local current at the welded part; a high-speed camera (202) configured to capture an image for measuring local temperature at the welded part from variation of luminance of emission by capturing light emission state of the welded part; a comparison determination unit (106) configured to determine whether or not at least one of current information and temperature information has an abnormal value by comparing the current information calculated based on magnetic field information acquired from the magnetic field measuring unit with past current information and comparing the temperature information measured from an image of the high-speed camera (202) with past temperature information. To improve quality control of welding, there is included in resistance welding: a magnetic field measuring unit (205) disposed around a welded part and configured to measure a local current at the welded part; a high-speed camera (202) configured to capture an image for ...more ...less
9
US10308359B2
Publication/Patent Number: US10308359B2
Publication date: 2019-06-04
Application number: 15/608,449
Filing date: 2017-05-30
Abstract: A moving device includes an imaging unit, an acquiring unit, a determining unit and an imaging control unit. The acquiring unit is configured to acquire a state at a time when the moving device is released from a user. The determining unit is configured to determine an imaging manner to control the imaging unit after the time of being released, based on the state acquired by the acquiring unit. The imaging control unit is configured to control the imaging unit in the imaging manner determined by the determining unit. A moving device includes an imaging unit, an acquiring unit, a determining unit and an imaging control unit. The acquiring unit is configured to acquire a state at a time when the moving device is released from a user. The determining unit is configured to determine an imaging ...more ...less
10
US2019094885A1
Publication/Patent Number: US2019094885A1
Publication date: 2019-03-28
Application number: 16/135,925
Filing date: 2018-09-19
Abstract: A flying device includes a propulsion unit, a distance sensor, a controller, a determiner and a control modifier. The propulsion unit enables the flying device to fly in air. The distance sensor determines a distance from the flying device to a reference plane. The controller controls an altitude of the flying device based on a value output from the distance sensor. The determiner determines occurrence of an environmental change due to a shift of the reference plane. The control modifier modifies control of the controller in a case in which the determiner determines the occurrence of the environmental change. A flying device includes a propulsion unit, a distance sensor, a controller, a determiner and a control modifier. The propulsion unit enables the flying device to fly in air. The distance sensor determines a distance from the flying device to a reference plane. The controller ...more ...less
11
US2019115122A1
Publication/Patent Number: US2019115122A1
Publication date: 2019-04-18
Application number: 16/161,302
Filing date: 2018-10-16
Abstract: In a water cut-off structure including: a shield electric wire having a braid covering signal lines; an exterior member through which the shield electric wire is inserted; and a grommet that is arranged at an opening of an attachment member, partitions one side and the other side of the attachment member, and has an insertion portion through which the shield electric wire is inserted, an exposed portion where the braid is exposed to the outside is arranged between the insertion portion and the exterior member and is provided with resin that is formed integrally with the exterior member and the insertion portion and is poured into a space between the signal lines in the braid, a space between the braid and the signal lines, a space in the braid, a space between the braid and the exterior member, and a space between the braid and the insertion portion. In a water cut-off structure including: a shield electric wire having a braid covering signal lines; an exterior member through which the shield electric wire is inserted; and a grommet that is arranged at an opening of an attachment member, partitions one side and the other ...more ...less
12
US10369941B2
Publication/Patent Number: US10369941B2
Publication date: 2019-08-06
Application number: 15/838,087
Filing date: 2017-12-11
Abstract: A wire harness includes a first conductor path having a high priority in protection, a second conductor path having a priority in protection which is lower than that of the first conductor path, and an external member having a tubular shape and accommodating the first conductor path and the second conductor path altogether so as to protect them. The external member has a form in which the first conductor path is positioned farther away from a road surface than the second conductor path within a predetermined range in a longitudinal direction thereof. A wire harness includes a first conductor path having a high priority in protection, a second conductor path having a priority in protection which is lower than that of the first conductor path, and an external member having a tubular shape and accommodating the first conductor ...more ...less
13
US2019115121A1
Publication/Patent Number: US2019115121A1
Publication date: 2019-04-18
Application number: 16/159,973
Filing date: 2018-10-15
Abstract: A waterproofing structure for shielded cable includes: a shielded cable including one or more cables and a braided wire serving as a shielding member and covering the cables; a grommet serving as a waterproofing member and covering a waterproofed portion on the braided wire; and a heat shrinkable tube including an adhesive disposed to cover the waterproofed portion of the braided wire 13. The adhesive pushed into the braided wire by heat shrinkage of the heat shrinkable tube fills a gap between a plurality of strands of the braided wire in an entire region of the waterproofed portion and a gap between the cable and the braided wire. A space between an outer circumferential surface of the heat shrinkable tube and a part of an inner circumferential surface of the waterproofing member is blocked without any gap in a circumferential direction. A waterproofing structure for shielded cable includes: a shielded cable including one or more cables and a braided wire serving as a shielding member and covering the cables; a grommet serving as a waterproofing member and covering a waterproofed portion on the braided wire; and ...more ...less