-
公开(公告)号：US11952018B2
公开(公告)日：2024-04-09
申请号：US17124603
申请日：2020-12-17
摘要： A drive system for a vehicle includes a plurality of electric traction motors, each mechanically coupled to at least one drive wheel to generate traction. At least one traction power converter is connected on an AC voltage side to at least one electric traction motor to supply the electric traction motor with electric power. A traction control unit for controlling at least one traction power converter is provided and is designed to control the at least one traction power converter while the vehicle is moving based on electrical output alternating quantities of the at least one traction power converter. A rotational movement of the at least one drive wheel of the vehicle during standstill of the vehicle is not detected by a separate detection unit based on the output alternating quantities.
-
公开(公告)号：US11750128B2
公开(公告)日：2023-09-05
申请号：US17834385
申请日：2022-06-07
发明人： Taro Takahashi , Akira Hatano , Naoki Mima
CPC分类号： H02P21/20 , G01L3/24 , H02P6/04 , H02P6/17 , H02P2203/03 , H02P2203/09
摘要： An external force estimation device is configured to estimate an external force acting on a motor. The external force estimation device includes a processor. The processor is configured to: calculate an output torque of the motor by using a value of a current supplied to the motor; estimate an inertia torque of the motor by using rotational position information of the motor; estimate a first friction torque of the motor by using the rotational position information of the motor; perform temperature-based correction for the first friction torque by using temperature information of the motor; and estimate the external force by subtracting the inertia torque and the first friction torque after the temperature-based correction from the output torque.
-
公开(公告)号：US11749485B2
公开(公告)日：2023-09-05
申请号：US17297134
申请日：2019-11-26
摘要： A modular switch apparatus for controlling at least one electric drive includes a mounting rail bus system having a control line and two power supply lines, a power supply device, and a safety relay module that is configured to obtain a first, high level control signal from a DC supply voltage applied to the two power supply lines and to feed the first control signal to the control line via the first bus interface if the emergency stop command device has not been actuated. Furthermore, at least one safety motor starter module is provided, which includes a processing device with an input that can be electrically connected to the control line via a bus interface. The processing device is adapted to evaluate a first, high level control signal as transferred via the control line and to provide control signals for controlling the at least two switch devices.
-
公开(公告)号：US11722077B2
公开(公告)日：2023-08-08
申请号：US16616911
申请日：2018-05-23
发明人： Andreas Egger , Marc Desgeans , Stefan Ehrlich , Johann Meier
IPC分类号： H02P1/54 , H02P6/00 , E05B81/06 , B60R16/023 , H02P5/68 , H02P6/04 , H02P29/00 , E05F11/38 , E05F15/697
CPC分类号： H02P6/00 , B60R16/023 , E05B81/06 , H02P5/68 , H02P6/04 , E05F11/382 , E05F15/697 , H02P29/00
摘要： The disclosure relates to a motor vehicle having at least one vehicle side, on which a front door and a rear door are provided, and to a method for operating an electric motor in a respective rear door of the at least one vehicle side. The disclosure relates to a motor vehicle having at least one vehicle side, on which a front door and a rear door are provided, wherein an electric motor configured to provide a motorized door function is provided in the rear door and wherein a control device configured to operate the motor which is connected to the motor via electrical conductor elements for transferring a motor current is provided. According to the disclosure, the control device is arranged in the front door and is configured to also control at least one door function of the front door.
-
公开(公告)号：US11693368B2
公开(公告)日：2023-07-04
申请号：US16716577
申请日：2019-12-17
发明人： Takashi Kawaguchi
IPC分类号： H02P25/064 , H02P5/00 , G04C3/14 , H02P6/04 , H02P6/182
CPC分类号： G04C3/143 , G04C3/146 , H02P6/04 , H02P6/182 , H02P2006/045
摘要： Provided is an electronic timepiece capable of suppressing variation in the drive speed of a rotor, and driving a motor at a constant speed. The electronic timepiece has a driver; a controller that controls the driver to the on state or the off state according to a current flowing through a coil of a motor; a detection signal output device configured to output a detection signal when the on time or the off time, which are the continuous time of the on state and off state of the driver, meets a specific condition; a reference signal output device that outputs a reference signal used as a reference of a drive speed of the motor; and a drive cycle adjuster that compares the output timing of the detection signal and the reference signal, shortens the drive cycle when the detection signal is output after the reference signal, and when the detection signal is output before the reference signal, lengthens the drive cycle of the motor.
-
公开(公告)号：US11632071B2
公开(公告)日：2023-04-18
申请号：US17424566
申请日：2020-02-27
摘要： A motor drive device that drives motors with one inverter includes a step-out control unit that detects step-out in which the operating frequency of at least one of the motors does not match the inverter output frequency, or the operating frequency of at least one of the motors does not match the operating frequency of another one of the motors, and stops the motors by switching an energization state of the inverter when at least one of the motors is out of step.
-
公开(公告)号：US20220416701A1
公开(公告)日：2022-12-29
申请号：US17834385
申请日：2022-06-07
发明人： Taro TAKAHASHI , Akira HATANO , Naoki MIMA
摘要： An external force estimation device is configured to estimate an external force acting on a motor. The external force estimation device includes a processor. The processor is configured to: calculate an output torque of the motor by using a value of a current supplied to the motor; estimate an inertia torque of the motor by using rotational position information of the motor; estimate a first friction torque of the motor by using the rotational position information of the motor; perform temperature-based correction for the first friction torque by using temperature information of the motor; and estimate the external force by subtracting the inertia torque and the first friction torque after the temperature-based correction from the output torque.
-
公开(公告)号：US20220032784A1
公开(公告)日：2022-02-03
申请号：US17503410
申请日：2021-10-18
IPC分类号： B60L15/20 , B60K1/02 , B60K17/356 , H02P6/04 , B60L1/02
摘要： A drive system with one or more electrically driven axles, a transmission subsystem, which is drivingly coupled to a drive gearbox of each of the electrically driven axles, first and second motors, which are each drivingly coupled to the transmission subsystem and have different motor characteristics, and a controller. The drive gearbox of each axle transmits rotary power to an associated set of vehicle wheels. The controller controls the first and second motors responsive to at least a torque request. Over a significant portion of the operating range of the drive system, the controller is configured to vary the respective magnitudes of the rotary power provided by the first and second motors to satisfy the torque request in a manner that maximizes a combined efficiency of the motors in a predetermined manner.
-
公开(公告)号：US11239771B2
公开(公告)日：2022-02-01
申请号：US16360472
申请日：2019-03-21
发明人： Kiyotaka Matsubara , Makoto Nakamura , Daigo Nobe , Ryuji Omata
摘要： A control unit calculates a motor voltage vector including a corresponding excitation voltage command and a torque voltage command in response to an output request for the motor and changes a first inverter voltage vector and a second inverter voltage vector while maintaining the motor voltage vector obtained to allow distribution of the motor voltage vector at any ratio. The first inverter voltage vector includes a first excitation voltage command and a first torque voltage command associated with an output from the first inverter, and the second inverter voltage vector includes a second excitation voltage command and a second torque voltage command associated with an output from the second inverter.
-
10.发明申请公开(公告)号：US20220029562A1
公开(公告)日：2022-01-27
申请号：US17495934
申请日：2021-10-07
发明人： Eijiro Ohashi , Takuya Miyashita , Yasukazu Maeda
摘要： A motor control apparatus includes: an excitation unit configured to excite a plurality of excitation phases of each of a plurality of motors that include first to Nth motors and a control unit configured to control the excitation unit so as to perform detection excitation processing for sequentially exciting the plurality of excitation phases for each excitation cycle during each excitation period, regarding each of the first to Nth motors, and thereby detect rotor positions of the respective first to Nth motors. When detecting rotor positions of the respective first to Nth motors, the control unit delays a start timing of the detection excitation processing of at least one motor out of the first to Nth motors relative to a start timing of the detection excitation processing of another motor by a period shorter than the excitation period.
-
-
-
-
-
-
-
-
-
搜索结果
371 条记录 (耗时 0.023 秒)
