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公开(公告)号：US20170317617A1
公开(公告)日：2017-11-02
申请号：US15189963
申请日：2016-06-22
Applicant: Faraday&Future Inc.
Inventor： Mengwei Campbell , Stefan Grubic
CPC classification number: H02K11/24 , H02P21/0089 , H02P21/22 , H02P2101/45
Abstract: Systems and methods are described for controlling an electric motor. An exemplary system may include a torque detector configured to detect an output torque of the electric motor. The system may also include a controller configured to control a voltage source to apply a predetermined voltage to drive the electric motor and determine an operating table containing a plurality of operating points. The controller may select an operating current value and generate a plurality of current commands. The controller may also apply each of the plurality of current commands to drive the electric motor and determine an output torque generated by the electric motor. The controller may further determine a target current command that generates a maximum output torque. In addition, the controller may determine an operating point of the operating table based on the target current command. Moreover, the controller may control the electric motor using the operating table.
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Patent Agency Ranking
公开(公告)号：US10700629B2
公开(公告)日：2020-06-30
申请号：US15144252
申请日：2016-05-02
Applicant: Faraday&Future Inc.
Inventor： Mengwei Campbell , Stefan Grubic
Abstract: Systems and methods are disclosed for determining an operating point for controlling an electric motor. An exemplary system may include a voltage monitor configured to determine a voltage applied to the electric motor. The system may also include a controller configured to determine the operating point based on the voltage. The controller may include a comparator configured to determine a difference between the voltage and a reference voltage. The controller may also include a regulator configured to generate a correction signal for reducing the difference. The controller may be configured to determine the operating point when the difference is below a predetermined threshold.
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公开(公告)号：US20170361732A1
公开(公告)日：2017-12-21
申请号：US15187380
申请日：2016-06-20
Applicant: Faraday&Future Inc.
Inventor： Stefan Grubic , Mengwei Campbell
CPC classification number: B60L15/02 , B60L2210/42 , B60L2240/423 , H02P21/22 , H02P27/08 , H02P27/12
Abstract: Circuits, methods, and systems for driving a load are described. An exemplary driving circuit may include a plurality of switching devices and a controller electrically connected to the switching devices. The controller may be configured to receive a reference voltage signal indicating a target voltage for the driving circuit to generate to drive the load. The reference voltage signal may correspond to a reference space vector in a reference frame. The controller may also be configured to determine that the reference space vector falls within a holding region in which the reference voltage signal is subject to over-modulation. The controller may then generate an adjusted reference voltage signal by adjusting the reference space vector to match a predetermined space vector associated with the holding region. In addition, the controller may be configured to provide the adjusted reference voltage signal to the plurality of switching devices to drive the load.
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公开(公告)号：US20170151875A1
公开(公告)日：2017-06-01
申请号：US14954963
申请日：2015-11-30
Applicant: Faraday&Future Inc.
Inventor： Mengwei Campbell , Jie Dang
CPC classification number: B60L3/12 , B60L3/0061 , B60L15/025 , B60L2240/421 , B60L2240/423 , B60L2240/427 , B60L2240/429 , B60L2270/142 , B60L2270/145 , G01D3/036 , Y02T10/643 , Y02T10/7258
Abstract: Systems and methods are disclosed for detecting position measurement errors for an electric motor. An exemplary system may include a position sensor configured to measure a position of a rotor of the electric motor. The system may also include an error detector configured to detect an offset between the position measured by the position sensor and an actual position of the rotor. The error detector may include a signal injector configured to inject a probing signal to a stator of the electric motor. The error detector may also include a signal sampler configured to sample a response signal from the stator of the electric motor. The error detector may be configured to derive the offset based on the response signal.
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公开(公告)号：US09919615B2
公开(公告)日：2018-03-20
申请号：US15187380
申请日：2016-06-20
Applicant: Faraday&Future Inc.
Inventor： Stefan Grubic , Mengwei Campbell
CPC classification number: B60L15/02 , B60L2210/42 , B60L2240/423 , H02P21/22 , H02P27/08 , H02P27/12
Abstract: Circuits, methods, and systems for driving a load are described. An exemplary driving circuit may include a plurality of switching devices and a controller electrically connected to the switching devices. The controller may be configured to receive a reference voltage signal indicating a target voltage for the driving circuit to generate to drive the load. The reference voltage signal may correspond to a reference space vector in a reference frame. The controller may also be configured to determine that the reference space vector falls within a holding region in which the reference voltage signal is subject to over-modulation. The controller may then generate an adjusted reference voltage signal by adjusting the reference space vector to match a predetermined space vector associated with the holding region. In addition, the controller may be configured to provide the adjusted reference voltage signal to the plurality of switching devices to drive the load.
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公开(公告)号：US20170317635A1
公开(公告)日：2017-11-02
申请号：US15144252
申请日：2016-05-02
Applicant: Faraday&Future Inc.
Inventor： Mengwei Campbell , Stefan Grubic
Abstract: Systems and methods are disclosed for determining an operating point for controlling an electric motor. An exemplary system may include a voltage monitor configured to determine a voltage applied to the electric motor. The system may also include a controller configured to determine the operating point based on the voltage. The controller may include a comparator configured to determine a difference between the voltage and a reference voltage. The controller may also include a regulator configured to generate a correction signal for reducing the difference. The controller may be configured to determine the operating point when the difference is below a predetermined threshold.
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