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公开(公告)号：US20190202294A1
公开(公告)日：2019-07-04
申请号：US16322867
申请日：2017-07-21
发明人： Alexander Haag , Sascha Klett , Ralf Arnold
CPC分类号： B60L3/0092 , B60K6/20 , B60K2006/266 , B60L2220/44 , H02J2007/143 , H02P5/74 , Y02T10/642
摘要： In an electrical traction drive for a vehicle comprising at least two individual wheel drives that are to be controlled independently of each other, the drives are able to be operated redundantly in order for an emergency operating function to be implemented.
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公开(公告)号：US20190165702A1
公开(公告)日：2019-05-30
申请号：US15826414
申请日：2017-11-29
IPC分类号： H02P5/74 , H02P25/062 , H02P21/00 , H02K44/02
CPC分类号： H02P5/74 , H02K44/02 , H02P21/00 , H02P21/50 , H02P25/062
摘要： A method of operating a drive circuit for parallel electric motors is provided. The method includes receiving measurements of stator phase currents in the parallel electric motors. The method includes selecting a target PM motor, from among the parallel electric motors, that generates a largest torque output. The method includes executing a vector control algorithm to generate a complex command voltage vector for the target PM motor. The method includes generating and transmitting a pulse width modulation (PWM) signal based on the complex command voltage vector for controlling an inverter. The method includes operating the inverter according to the PWM signal to supply three-phase alternating current (AC) power to the parallel electric motors.
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公开(公告)号：US20190111913A1
公开(公告)日：2019-04-18
申请号：US16117217
申请日：2018-08-30
发明人： Yu SHIMIZU
CPC分类号： B60W20/30 , B60K6/26 , B60K6/365 , B60K6/40 , B60K6/445 , B60W10/06 , B60W10/08 , B60W20/15 , B60W50/06 , B60W2510/1005 , B60W2540/16 , B60W2710/08 , B60Y2200/92 , H02M3/1582 , H02M7/5387 , H02P5/69 , H02P5/74 , H02P2201/07
摘要： When a shift position is changed from a non-forward operating position to a forward operating position during a predetermined operation that shuts off gates of a first inverter and a second inverter and operates an engine, a step-up/down converter is controlled to gradually change the voltage of a high voltage-side power line toward a required voltage that is lower than a reverse voltage of a first motor.
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公开(公告)号：US20180345499A1
公开(公告)日：2018-12-06
申请号：US15992444
申请日：2018-05-30
发明人： Clemens MUELLER , Daniel SCHARFEN
CPC分类号： B25J9/1674 , B25J9/126 , H02P1/026 , H02P3/02 , H02P5/74 , H02P5/747 , Y10S901/23
摘要： A robotic system is proposed whereby the system comprises drivers which integrate the power switches and communications electronics for communicating over power lines or wirelessly or over another shared communications channel. In a robotic system comprising such drivers, one or more central controllers communicate with at least one actuator driver across a communications channel, wherein the communications channel is subject to interference caused by an actuator, and wherein at least one of the communication and the operation of the actuators is modified in anticipation of interference occurring such that reliable communication can be assured.
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5.发明申请公开(公告)号：US20180342964A1
公开(公告)日：2018-11-29
申请号：US15775382
申请日：2016-11-10
发明人： Geert DEBUF , Wim LASSUYT
IPC分类号： H02P5/74 , H02P29/024 , H02P29/032 , H02P5/68
CPC分类号： H02P5/74 , H02P5/68 , H02P29/025 , H02P29/026 , H02P29/032
摘要： A method and a device for bringing a textile machine to a controlled standstill in the event of a failure of the power supply, and a correspondingly equipped textile machine, the textile machine having at least two axes that are driven in synchronization by respective electric motors (M1-M5) connected to a common intermediate voltage circuit (1), and in which at least one electric motor acting as power generator can supply electric power to at least one other electric motor via the common DC bus (1), and in which the voltage (V) on the common DC bus is controlled by varying at least two variables in such a way that the voltage follows a previously defined curve while the textile machine is being brought to a standstill.
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公开(公告)号：US20180309297A1
公开(公告)日：2018-10-25
申请号：US15953727
申请日：2018-04-16
申请人： Visedo Oy
CPC分类号： H02J3/32 , B60L2200/32 , B60L2210/14 , B63H21/17 , H02H7/1213 , H02J1/08 , H02J1/102 , H02J4/00 , H02J7/0013 , H02J7/345 , H02J2007/0067 , H02M3/155 , H02M3/158 , H02P5/74 , Y02T10/7225
摘要： A power converter comprises an inductor coil whose first pole is connected to an input terminal of the power converter, a controllable switch between the ground and a second pole of the inductor coil, a first unidirectionally conductive component providing a path for electric current from the inductor coil towards an output terminal of the power converter when the controllable switch is non-conductive, and an over-current protector at the output terminal. The power converter comprises a second unidirectionally conductive component for conducting electric current from the input terminal to the over-current protector in a fault situation where voltage at the output terminal is smaller than voltage at the input terminal. Thus, the second unidirectionally conductive component constitutes a low-inductance bypass route for fault current and enables the over-current protector to react fast to a fault situation.
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公开(公告)号：US20180269811A1
公开(公告)日：2018-09-20
申请号：US15933248
申请日：2018-03-22
发明人： Je Hyung CHO , Alexey BODROV , Sun Jin KIM , Yong Woon LEE
摘要： A power system may include a first motor, a second motor connected in parallel to the first motor, a driver configured to supply a driving current to the first motor and the second motor and a controller configured to control the driver based on the driving current and a rotating speed of the first motor, and when the rotating speed of the first motor is different from a rotating speed of the second motor, the controller may control the driver so that the rotating speed of the first motor is equal to the rotating speed of the second motor. The power system may drive two and more motors at the same speed by applying the driving voltage based on the rotating speed and the driving current of one of two or more motors, using a single driving apparatus.
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公开(公告)号：US09998049B2
公开(公告)日：2018-06-12
申请号：US15565227
申请日：2015-08-04
发明人： Mitsuo Kashima , Shigeo Umehara
IPC分类号： G05B11/28 , H02P21/22 , H02M7/5395 , H02P25/022 , F25B49/02 , H02P5/74
CPC分类号： H02P21/22 , F25B49/025 , F25B2600/021 , H02M7/5395 , H02P5/74 , H02P21/0021 , H02P25/022
摘要： An inverter control device includes an inverter main circuit, a current detector, a voltage detector that detects a DC voltage between DC bus lines, and an inverter control unit that generates PWM signals to perform on/off control of a plurality of semiconductor switching elements respectively with a DC current and a DC voltage. The unit sets a carrier period of PWM signals to be 1/N times a calculation period in which the PWM signals are generated, performs detection of a DC current detected by the current detector in a 1/2 calculation period immediately before a calculation start timing for generating PWM signals, calculates an output voltage vector based on the detected DC current, and reflects PWM signals generated from the output voltage vector in one calculation period from a 1/2 calculation period after the calculation start timing to 3/2 control calculation periods after the same.
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公开(公告)号：US20180091079A1
公开(公告)日：2018-03-29
申请号：US15565227
申请日：2015-08-04
发明人： Mitsuo KASHIMA , Shigeo UMEHARA
IPC分类号： H02P21/22 , H02M7/5395 , H02P5/74 , H02P25/022 , F25B49/02
CPC分类号： H02P21/22 , F25B49/025 , F25B2600/021 , H02M7/5395 , H02P5/74 , H02P21/0021 , H02P25/022
摘要： An inverter control device includes an inverter main circuit, a current detector, a voltage detector that detects a DC voltage between DC bus lines, and an inverter control unit that generates PWM signals to perform on/off control of a plurality of semiconductor switching elements respectively with a DC current and a DC voltage. The unit sets a carrier period of PWM signals to be 1/N times a calculation period in which the PWM signals are generated, performs detection of a DC current detected by the current detector in a 1/2 calculation period immediately before a calculation start timing for generating PWM signals, calculates an output voltage vector based on the detected DC current, and reflects PWM signals generated from the output voltage vector in one calculation period from a 1/2 calculation period after the calculation start timing to 3/2 control calculation periods after the same.
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公开(公告)号：US20180076743A1
公开(公告)日：2018-03-15
申请号：US15266773
申请日：2016-09-15
申请人： The Boeing Company
发明人： Mun Shin Chik , Darren Paschedag , Neil Pande , Shengyi Liu
摘要： Methods, apparatus, systems and articles of manufacture to perform torque balance control of co-shafted motors are disclosed. An example method includes calculating a first torque value based on first phase currents of a first motor that is driving a shaft connected to a control surface, and calculating a second torque value based on second phase currents of a second motor that is driving the same shaft. The example method also includes determining a first shared torque value based on the first calculated torque value and a first sharing factor, and determining a second shared torque value based on the second calculated torque value and a second sharing factor. The example method also includes determining a torque error based on the first shared torque value and the second shared torque value, and determining a first torque adjustment associated with the first motor based on the torque error.
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