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公开(公告)号：US11870384B2
公开(公告)日：2024-01-09
申请号：US16644207
申请日：2018-06-13
发明人： Hiroshi Watanabe , Masataka Sasaki , Masahiro Hiraga , Yusuke Arao , Atsuhiko Nakamura , Hiroyuki Tomita , Kazushige Hotta , Yusaku Onuma
CPC分类号： H02P6/17
摘要： The purpose of the present invention is to provide a speed detection method for maintaining a fine time axis resolution and a power conversion device that uses the method. This power conversion device comprises an inverter for converting DC voltage into AC voltage and supplying the same to a motor, a motor speed calculation unit for calculating the speed of the motor from output pulses obtained from an encoder connected to the motor, and a control unit for receiving the motor speed from the motor speed calculation unit and controlling the inverter. In the power conversion device, the motor speed calculation unit measures the duty cycle of the output pulses, calculates the speed using the half cycles of the output pulses if the duty cycle is within a prescribed range from 50%, and calculates the speed using the full cycles of the output pulses if the duty ratio is outside of the prescribed range from 50%.
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公开(公告)号：US11381183B2
公开(公告)日：2022-07-05
申请号：US15562420
申请日：2016-05-18
申请人： WABCO GmbH
发明人： Mohamed Abdelfattah , Reiner Bleil , Robert Sohn
IPC分类号： H02P7/29 , H02K11/33 , H02P1/18 , B60G17/052 , B60G17/04
摘要： A compressor system for generating compressed air for a compressed air supply system in a vehicle. The compressor system includes a brushed direct current electric motor (BDC electric motor); a compressor configured to be driven by the BDC electric motor; and a control unit for controlling the BDC electric motor and allocated to the BDC electric motor so as to delimit an operating current of the electric motor. A free-running current path is allocated to the control unit, the free-running current path being configured to delimit the operating current of the electric motor in a variable manner. A switch controller is allocated to the control unit, the switch controller being configured to specify a switched-on time period (t_ON) and/or a switched-off time period (t_OFF) for the electric motor in a variable manner.
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公开(公告)号：US11050376B2
公开(公告)日：2021-06-29
申请号：US16609489
申请日：2017-06-06
发明人： Yoshimasa Nishijima , Keiichi Enoki , Masutaka Watanabe , Yasukazu Murata , Shingo Harada , Kazuhiko Otsuka
摘要： In order to reduce deviation of correction amount when calculating a magnetic pole position correction amount of a permanent magnet type rotating electrical machine, and perform magnetic pole position correction with high accuracy, in state where the permanent magnet type rotating electrical machine is rotated, a d-axis current command value and a q-axis current command value in dg vector control are kept substantially zero, an actual d-axis voltage and an actual q-axis voltage are calculated from a midpoint potential detected from a midpoint potential detection unit, a magnetic pole position correction amount is calculated based on a predetermined arithmetic expression from the actual d-axis voltage and the actual q-axis voltage, and magnetic pole position origin correction is performed based on the magnetic pole position correction amount.
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公开(公告)号：US11002239B2
公开(公告)日：2021-05-11
申请号：US16717653
申请日：2019-12-17
申请人： SUBARU CORPORATION
发明人： Ken Watanabe , Fumiyuki Moriya
摘要： A control device includes an engine, a starter motor configured to perform engine start, a direct-current-to-direct-current converter, a battery coupled to the starter motor with the direct-current-to-direct-current interposed therebetween, and a controller. The controller is configured to execute control of switching between first and second traveling modes. The direct-current-to-direct-current converter is configured to supply an electric power of the battery to the starter motor, and to lower an output voltage to be supplied thereto. The controller is configured to execute output limit control of lowering the output voltage to lower the output current, in a case where an output current of the direct-current-to-direct-current converter becomes equal to or higher than a threshold. The controller is configured to initiate boost permitting control when initiating the engine start in association with switching from the second to first traveling mode. The boost permitting control makes the threshold higher than a usual threshold.
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公开(公告)号：US20200309079A1
公开(公告)日：2020-10-01
申请号：US16717653
申请日：2019-12-17
申请人： SUBARU CORPORATION
发明人： Ken WATANABE , Fumiyuki MORIYA
摘要： A control device includes an engine, a starter motor configured to perform engine start, a direct-current-to-direct-current converter, a battery coupled to the starter motor with the direct-current-to-direct-current interposed therebetween, and a controller. The controller is configured to execute control of switching between first and second traveling modes. The direct-current-to-direct-current converter is configured to supply an electric power of the battery to the starter motor, and to lower an output voltage to be supplied thereto. The controller is configured to execute output limit control of lowering the output voltage to lower the output current, in a case where an output current of the direct-current-to-direct-current converter becomes equal to or higher than a threshold. The controller is configured to initiate boost permitting control when initiating the engine start in association with switching from the second to first traveling mode. The boost permitting control makes the threshold higher than a usual threshold.
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公开(公告)号：US20200267933A1
公开(公告)日：2020-08-27
申请号：US15930863
申请日：2020-05-13
申请人： Nordic Gamekeeper AB
发明人： Carl Pfeiff
摘要： The present invention relates to a control unit (116) for a game or fish feeder (100). The control unit (116) is mounted on the feeder (100) and comprises: means (130) for controlling the powering of a drive unit (110) of said feeder (100) for controlled output of feed from the feeder (100); a wireless transmitter (138) arranged to communicate over a wireless network (146) with a remote unit (140); a sensor (132; 134) for measuring a parameter of the feeder (100); and means (124) for determining whether a measured parameter value provided by said sensor (132; 134) fulfills a predetermined condition in order to detect an action-requiring state of the feeder (100). In response to a detected action-requiring state, the wireless transmitter (138) is triggered to send a notification to said remote unit (140).
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公开(公告)号：US10653110B2
公开(公告)日：2020-05-19
申请号：US15129261
申请日：2015-03-25
申请人： Nordic Gamekeeper AB
发明人： Carl Pfeiff
摘要： The present invention relates to a control unit (116) for a game or fish feeder (100). The control unit (116) is mounted on the feeder (100) and comprises: means (130) for controlling the powering of a drive unit (110) of said feeder (100) for controlled output of feed from the feeder (100); a wireless transmitter (138) arranged to communicate over a wireless network (146) with a remote unit (140); a sensor (132; 134) for measuring a parameter of the feeder (100); and means (124) for determining whether a measured parameter value provided by said sensor (132; 134) fulfills a predetermined condition in order to detect an action-requiring state of the feeder (100). In response to a detected action-requiring state, the wireless transmitter (138) is triggered to send a notification to said remote unit (140).
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8.发明申请公开(公告)号：US20190027790A1
公开(公告)日：2019-01-24
申请号：US15999551
申请日：2018-08-20
发明人： Soren WENDEL , Vladimir BIZA
摘要： Accumulator battery, the processing method and its use, especially for combustion engines and motor vehicles, consist in serial-parallel connection of at least one or more NiMH—Nickel-metal hydride cells and or Li-Ion Lithium-Ion cells and or Li-Pol—Lithium polymer cells and ultracapacitors.
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公开(公告)号：US09712088B2
公开(公告)日：2017-07-18
申请号：US14867146
申请日：2015-09-28
发明人： Min Jae Kang , Sung Woo Lee , Hoon Choi
摘要： A control method and system of an electrical vacuum pump is provide to resolve generation of peak current when a motor of the electrical vacuum pump initially starts and implement a soft start. The electrical vacuum pump generates vacuum by suctioning air by rotating a pump with a motor. The control method includes starting the motor by supplying a power supply to the motor to switch on the electrical vacuum pump and sensing current applied to the motor using a current sensing circuit. In addition, the method includes determining a target value of motor input voltage set as a value according to the sensed applied current while starting the motor until the sensed applied current reaches a predetermined current and adjusted the motor input voltage applied to the motor to correspond to the target value.
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公开(公告)号：US20170105388A1
公开(公告)日：2017-04-20
申请号：US15129261
申请日：2015-03-25
申请人： Nordic Gamekeeper AB
发明人： Carl Pfeiff
CPC分类号： A01K5/0225 , A01K5/02 , A01K5/0291 , A01K61/80 , A01M31/002 , H02H7/0822 , H02P1/18 , H04Q9/00 , H04Q2209/40 , H04Q2209/823 , Y02A40/845
摘要： The present invention relates to a control unit (116) for a game or fish feeder (100). The control unit (116) is mounted on the feeder (100) and comprises: means (130) for controlling the powering of a drive unit (110) of said feeder (100) for controlled output of feed from the feeder (100); a wireless transmitter (138) arranged to communicate over a wireless network (146) with a remote unit (140); a sensor (132; 134) for measuring a parameter of the feeder (100); and means (124) for determining whether a measured parameter value provided by said sensor (132; 134) fulfills a predetermined condition in order to detect an action-requiring state of the feeder (100). In response to a detected action-requiring state, the wireless transmitter (138) is triggered to send a notification to said remote unit (140).
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