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公开(公告)号：US12199547B2
公开(公告)日：2025-01-14
申请号：US18227084
申请日：2023-07-27
Inventor： Jinku Hu , Bastiaan Huijzers , Hendrik Jan Meijdam
Abstract: An electric motor assembly is configured to determine a motor winding resistance value. Predicted values are determined for a first and second position of motor commutator sections relative to the motor brushes, with at least one of the brushes contacting different numbers of the sections in the first position and the second position. The predicted values are based on a temperature value measured by the temperature sensor and a predetermined dependence of variation of the motor resistance dependent on the temperature value. An electric motor current value is measured by a current sensor when the electric motor is substantially at standstill. A selection is made between different factors for determining the motor resistance value using the electric current value, dependent on which of the predicted values most closely corresponds to the electric current value. The motor resistance is determined using said electric current value according to the selected factor.
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公开(公告)号：US12132431B2
公开(公告)日：2024-10-29
申请号：US18146812
申请日：2022-12-27
Applicant: DENSO CORPORATION
Inventor： Kouichi Nishibata
IPC: H02K17/32 , H02K23/68 , H02K27/30 , H02M7/5387 , H02P7/00 , H02P27/06 , H02P29/024
CPC classification number: H02P29/0241 , H02M7/53871 , H02P27/06
Abstract: A control circuit is applied to a system provided with a rotary electric machine, a power converter electrically connected to a winding of the rotary electric machine, a power source, a cutoff switch provided on an electrical path that connects the power source and the power converter, and a storage unit. The control circuit is provided with a failure determination unit that determines whether a failure occurs in the system and a regeneration prevention unit that prevents a power regeneration, where a current flows from a rotary electric machine side towards a storage unit side, from occurring. In the case where the failure determination unit determines that a failure occurs in the system, the cutoff switch is turned OFF after the regeneration prevention unit prevents an occurrence of the power regeneration.
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公开(公告)号：US12097757B2
公开(公告)日：2024-09-24
申请号：US16963635
申请日：2018-07-23
Inventor： Marius Brand , Bastiaan Huijzers , Jinku Hu
CPC classification number: B60K11/085 , B60R16/023 , B60R16/03 , B60W10/30 , B62D35/00 , H02P5/68 , H02P7/0094 , B60W2050/046
Abstract: A control unit is presented for controlling a driving unit arranged for adjustment of one or more first air guiding flaps of a motorised vehicle between a first outer position and a second outer position. The control unit comprises a communication module for communicating with a vehicle control network for receiving first adjustment instructions for adjusting the first flap, a power supply module comprising an input power terminal for receiving power from a vehicle power network and a first output power terminal for supplying a first current to the driving unit. The control unit further comprises a current sensor module for sensing variations in the first supply current and a control module arranged to control the first supply current in accordance with the adjustment instructions and the sensed variations. By separating the control module from the driving unit, functionality of the control module may be shared over multiple driving units.
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公开(公告)号：US12015314B2
公开(公告)日：2024-06-18
申请号：US16979395
申请日：2019-03-06
Applicant: ABB Schweiz AG
Inventor： Minos Beniakar , Luca Peretti
Abstract: A method for continuous operation of a rotating machine, the method is performed in a rotating machine having an inner stator and an outer stator. The method includes setting a rotating machine reference operational value for the whole rotating machine, obtaining operational parameters for the inner stator and for the outer stator, wherein the operational parameters include magnetic cross-coupling between the inner and outer stators, determining an inner stator reference operational value for the inner stator and an outer stator reference operational value for the outer stator based on the set rotating machine reference operational value for the whole rotating machine and the obtained operational parameters, and driving the rotating machine based on the determined inner stator reference operational value for the inner stator and on the determined outer stator reference operational value for the outer stator, wherein the determined inner stator reference operational value for the inner stator differs from the determined outer stator reference operational value for the outer stator.
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公开(公告)号：US11863093B2
公开(公告)日：2024-01-02
申请号：US17761657
申请日：2020-08-20
Applicant: Nidec Corporation
Inventor： Tomohiro Fukumura , Linfeng Lan
Abstract: A first torque estimator determines a first torque estimation value according to a cross product method, and a second torque estimator determines a second torque estimation value according to an energy method. A torque weight adjuster adjusts, using a weighting coefficient calculated in accordance with a predetermined condition, weightings respectively applied to these two types of torque estimation values, and outputs a torque estimation value.
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Patent Agency Ranking
公开(公告)号：US11712963B2
公开(公告)日：2023-08-01
申请号：US17865648
申请日：2022-07-15
Inventor： Marius Brand , Bastiaan Huijzers , Jinku Hu
CPC classification number: B60K11/085 , B60R16/023 , B60R16/03 , B60W10/30 , B62D35/00 , H02P5/68 , H02P7/0094 , B60W2050/046
Abstract: A control unit is presented for controlling a driving unit arranged for adjustment of one or more first air guiding flaps of a motorised vehicle between a first outer position and a second outer position. The control unit comprises a communication module for communicating with a vehicle control network for receiving first adjustment instructions for adjusting the first flap, a power supply module comprising an input power terminal for receiving power from a vehicle power network and a first output power terminal for supplying a first current to the driving unit. The control unit further comprises a current sensor module for sensing variations in the first supply current and a control module arranged to control the first supply current in accordance with the adjustment instructions and the sensed variations. By separating the control module from the driving unit, functionality of the control module may be shared over multiple driving units.
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公开(公告)号：US11705836B2
公开(公告)日：2023-07-18
申请号：US17981768
申请日：2022-11-07
Applicant: INTEVA PRODUCTS FRANCE SAS
Inventor： François Breynaert , Simon Herpin
CPC classification number: H02P7/0094 , H02P7/2855 , H03K23/58
Abstract: A motor control system includes a variable voltage supply in signal communication with a direct current (DC) motor. The DC motor includes a rotor induced to rotate in response to a drive current generated by a variable supply voltage delivered by the voltage supply. The rotation of the rotor 103 generates a mechanical force that drives a component. A ripple count circuit 104 is configured to filter the drive current based on a rotational speed (ω) of the rotor 103 to generate a filtered drive current signal, and to generate a varying threshold based on the filtered drive current signal. Based on a comparison between the filtered drive current signal and the varying threshold, the ripple count circuit 104 generates a pulsed output signal indicative of the rotational speed (ω) of the rotor and a rotational position (θ) of the rotor.
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公开(公告)号：US11671045B2
公开(公告)日：2023-06-06
申请号：US17384492
申请日：2021-07-23
Applicant: CANON KABUSHIKI KAISHA
Inventor： Hiromu Sekiguchi
IPC: H02P7/00 , H02P21/22 , G01R31/389 , B65G43/08
CPC classification number: H02P21/22 , B65G43/08 , G01R31/389
Abstract: A transport apparatus includes an electric motor having a mover and coils, and a control device that controls the electric motor and includes a measuring unit and a control unit. The coils drives the mover by applying a current to each of the coils. The measuring unit measures an impedance of each coil. The control unit controls the current flowing through each of the coils based on a third current command value in which a first current command value, indicating a current corresponding to a thrust command value indicating a thrust applied to the mover, and a second current command value, indicating a current for measuring the impedance, are superimposed. The control unit determines the second current command value such that the mover does not receive a thrust due to a component corresponding to the second current command value in the current flowing through each coil when measuring the impedance.
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公开(公告)号：US11613011B2
公开(公告)日：2023-03-28
申请号：US16927247
申请日：2020-07-13
Applicant: Delta Electronics, Inc.
Inventor： Ching-Hsiung Tsai , Ming-Yang Cheng , Chung-Chan Hsu , Chia-Hui Chen , Hao-Lun Huang , Kuan-Shun Chao
Abstract: A mechanical arm system includes at least two links, at least two control devices and at least two motor devices. Each of the control devices includes a first control unit, a mechanical arm control unit and a driving unit. The first control unit receives an end-position command to output a first torque signal. The mechanical arm control unit includes a rigid mechanical unit and a mechanical model unit. The rigid mechanical unit receives the first torque signal to obtain a rigid mechanical torque, and the mechanical model unit receives the rigid mechanical torque and operates the flexible mechanical model to establish the mechanical arm model for obtaining the target torque, and the target position signal is output according to the target torque. The driving unit generates a driving signal according to the target position signal to adjust a rotation angle of the corresponding motor device.
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公开(公告)号：US11594988B2
公开(公告)日：2023-02-28
申请号：US17009869
申请日：2020-09-02
Applicant: DENSO CORPORATION
Inventor： Syunji Yamauchi
Abstract: A motor control device is a device for controlling a drive of a DC motor which is interlocked with an output shaft portion of an actuator. The motor control device includes: a relative position obtainer detecting current fluctuations when switching a connection between a commutator and a brush in the DC motor or when rotating the DC motor and obtaining relative position information of the output shaft portion; and an absolute position obtainer obtaining absolute position information of the output shaft portion using a potentiometer. The motor control device further includes: an actual position setter setting actual position information of the output shaft portion based on at least one of the absolute position information and the relative position information.
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