110 patents
Page 4 of 6
Utility
Motor control device
8 Jun 21
A motor control device includes a first control unit performing feedback control on a motor with a command value; one or plural second control units performing feedback control on the motor with a limit value; a control switching unit selecting, based on a deviation between the limit value and a measured value, one of the first and the one or plural of second control units as control unit.
Kei Sato
Filed: 10 Mar 20
Utility
Pressure control apparatus
8 Jun 21
Provided is a pressure control apparatus in which workability in assembly of a body, a spool valve, a retainer, and an elastic member is improved and a high degree of freedom in a design of installation of the spool valve is obtained.
Takeshi Nakano
Filed: 3 Sep 19
Utility
Motor
25 May 21
A motor includes a rotor having a shaft centered on a central axis that extends in an axial direction, a stator which is disposed to face the rotor and includes a plurality of coils, a housing in which the rotor and the stator are housed, and a bus bar assembly that is disposed on one side of the shaft in the axial direction, wherein the bus bar assembly includes a plurality of bus bars that are electrically connected to the plurality of coils of the stator and a bus bar holder that holds the plurality of bus bars, and wherein at least one bus bar among the plurality of bus bars is placed on a disposition surface part provided on the bus bar holder and extends in a direction crossing the central axis.
Shigehiro Kataoka, Kazuhiro Homma, Yoshiyuki Kobayashi, Hideaki Uchise, Masato Aono, Akihiro Okita
Filed: 30 Jul 18
Utility
Motor driving unit
18 May 21
Provided is a motor driving unit (1) capable of achieving space saving of a motor room and cost reduction of a vehicle.
Yoshihisa Okuhata
Filed: 24 Sep 19
Utility
Control device of motor and storage medium
27 Apr 21
A control device of a motor includes difference calculation circuitry that calculates a difference between a current rotation speed and a target rotation speed of the motor, coefficient correction circuitry that outputs corrected proportion coefficient and integration coefficient by multiplying each of an initially set proportion coefficient and integration coefficient by a correction coefficient, output voltage determination circuitry that calculates at least one of a proportional term in which the difference is multiplied by the corrected proportion coefficient and an integral term in which the difference is multiplied by the corrected integration coefficient and the result is integrated and determines one of the proportional term and the integral term or the sum of the two terms as a control value of the output voltage, and signal generation circuitry that generates a control signal on the basis of the control value.
Kei Sato
Filed: 24 Aug 18
Utility
Electric actuator
13 Apr 21
An electric actuator includes a first wiring member with a first connection portion exposed to one side in an axial-direction of a first case and a second wiring member with a second connection portion exposed to another side in the axial-direction of a second case, the first and second connection portions each having two opposing portions that respectively oppose in first and second directions with first and second gaps therebetween, the first gap having a narrow portion and a wide portion (larger in the first direction) connected thereto on the other side in the axial-direction, the second gap having a narrow portion and a wide portion (larger in the second direction) connected thereto on the one side in the axial-direction, and the first and second gaps overlapping at least partially when the first and second case are fixed, and the first and second connection portions are electrically connected.
Hiroshi Shirai, Shuichi Kinjo, Yutaka Uematsu, Kenichi Ozawa
Filed: 23 Jul 18
Utility
Electric oil pump apparatus and base plate for electric oil pump
30 Mar 21
An electric oil pump apparatus includes an electric oil pump including a housing main body that accommodates a motor and a pump driven by the motor, a flange portion formed on the housing main body, and a control circuit case for accommodating a control circuit, and a base plate attached to the electric oil pump.
Shigehiro Kataoka, Yoshiyuki Kobayashi, Koji Higuchi
Filed: 15 Mar 18
Utility
Clutch control device
30 Mar 21
A clutch control device includes a pump to feed oil to a hydraulic clutch, an input side oil passage connecting an oil tank and the pump and through which oil sucked from the oil tank to the pump passes, and an output side oil passage connecting the pump and the hydraulic clutch and through which oil that is pressurized by the pump and is fed from the pump to the hydraulic clutch passes.
Takamitsu Eto, Fumiya Sagara
Filed: 21 Jun 17
Utility
Pressure sensor device and electric pump
16 Mar 21
A pressure sensor device includes a pressure sensor, a sensor case, first and second terminals protruding from the pressure sensor in a first direction, a third terminal protruding from the pressure sensor in a second direction, a fourth terminal protruding from the pressure sensor in the second direction, a first capacitor on one side of the pressure sensor, a second capacitor on the other side of the pressure sensor, a first lead line extending out of the sensor case from the first terminal, a second lead line extending out of the sensor case from the second terminal, and a third lead line extending out of the sensor case from a side edge between the first terminal and the second terminal.
Yoshiyuki Kobayashi, Shigehiro Kataoka
Filed: 24 Jul 17
Utility
Pressure sensor device and electrically powered pump
16 Mar 21
A sensor case of pressure sensor device includes a sensor housing portion, a first terminal housing portion that extends from the sensor housing portion in a first direction, and a second terminal housing portion that extends from the sensor housing portion in a second direction.
Yoshihiro Kamimura, Yoshiyuki Kobayashi, Shigehiro Kataoka
Filed: 25 Jul 17
Utility
Pressure control device
16 Mar 21
A pressure control device is provided and includes a body which has a groove-shaped flow path including a groove part and a widened part connected to the groove part and having a width larger than a width of the groove part, and a filter unit which captures foreign matters mixed in a fluid which passes through the groove-shaped flow path.
Masaru Miyagi, Kenichi Ozawa
Filed: 11 Feb 20
Utility
Pressure detection device with improved external noise measurement reduction
2 Mar 21
A pressure detection device includes a base plate having first and second principal surfaces and a through-hole in which a fluid to be measured flows.
Yoshiyuki Kobayashi, Shigehiro Kataoka, Yoshihiro Kamimura
Filed: 10 Feb 17
Utility
Pressure control device
2 Feb 21
A pressure control device includes a body having a groove-shaped flow path including a groove part and a widened part, and a filter unit capturing foreign matters mixed in a fluid which passes through the groove-shaped flow path; the filter unit having a frame body including a through hole part and a filter member in a planar plate shape disposed with respect to the through hole part, and the filter unit being accommodated in the widened part.
Masaru Miyagi, Kenichi Ozawa
Filed: 12 Feb 20
Utility
Control valve device
2 Feb 21
The control valve device includes a valve body having a stacked first body and second body.
Tomohiro Yasuda, Kenta Kuramochi, Takanori Ara, Weiming Chen
Filed: 21 Mar 19
Utility
Pressure sensor device and hydraulic control apparatus
2 Feb 21
A pressure sensor device includes a pressure sensor having a housing positioned on a center axis extending vertically, a sensing hole provided in a lower part of the housing, and an electrode unit provided in an upper part of the housing; and a connecting member having a contact spring that is pressed against the electrode unit of the pressure sensor.
Tomoka Osawa, Hiroshi Shirai, Toshiaki Nakamura
Filed: 23 Mar 18
Utility
Electric actuator including two cases fixed to each other
2 Feb 21
An electric actuator includes: a motor; a first case accommodating the motor; a second case located on one side in an axial direction of the first case; a bearing holder fixed to the first case; and a first bearing held by the bearing holder.
Hiroshi Shirai, Shuichi Kinjo, Kazuhiro Saito
Filed: 14 Jun 19
Utility
Motor
2 Feb 21
A motor includes a rotor having a motor shaft along a central axis extending in an axial direction; a stator facing the rotor with a gap interposed therebetween in a radial direction; a motor driving inverter unit supplying electric power from a battery to the stator; a charger having a charger inverter unit for charging the battery; and a housing accommodating the stator, the motor driving inverter unit and the charger.
Yoshihisa Okuhata
Filed: 18 Mar 19
Utility
Motor
12 Jan 21
A motor includes a rotor that has a motor shaft disposed along a central axis extending in an axial direction; a stator facing the rotor with a gap interposed therebetween in a radial direction; a motor driving inverter unit supplying electric power from a battery to the stator; a charger having a charger inverter unit that charges the battery; and a housing accommodating the stator, the motor driving inverter unit and the charger The housing has a cooling flow path through which a coolant flows, a stator accommodation unit accommodating the stator, an inverter accommodation unit positioned outside the stator accommodation unit in the radial direction, a charger accommodation unit positioned outside the stator accommodation unit in the radial direction, and an intermediate partitioning wall partitioning the inverter accommodation unit and the charger accommodation unit The cooling flow path is disposed in the intermediate partitioning wall.
Yoshihisa Okuhata
Filed: 19 Mar 19
Utility
Electric valve device, fresh air passage mechanism, and internal-combustion engine
28 Dec 20
Provided is an electric valve device which is capable of improving the accuracy of detecting whether there is a gas leakage from a blow-by gas passage and capable of detecting detachment of the electric valve device from a pipe of a fresh air passage.
Dongming Chen, Tomohiko Nakanishi
Filed: 19 Sep 19
Utility
Electric actuator
28 Dec 20
An electric actuator is provided and includes: a motor unit having a motor shaft extending in an axial direction, a speed reducer connected to one side of the motor shaft in the axial direction, an output section having an output shaft to which rotation of the motor shaft is transmitted via the speed reducer, and a housing accommodating the motor unit, the speed reducer and the output section.
Yutaka Uematsu, Shun Kato, Ryunosuke Oikawa, Yuzo Akasaka, Kazumi Shinkai
Filed: 27 Dec 18