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公开(公告)号：US20230421027A1
公开(公告)日：2023-12-28
申请号：US17851963
申请日：2022-06-28
Applicant: Ford Global Technologies, LLC
Inventor： Ji Wu , Michael W. Degner , Wei Wu
IPC: H02K11/38
CPC classification number: H02K11/38 , H02K2213/03
Abstract: A controller, responsive to a signal indicating deactivation of a vehicle and disconnection of a traction battery from an inverter, generates a d-axis current command for the inverter having a ramp portion that defines a rate of change in current magnitude that depends on an electric angle between a rotor and stator of an electric machine.
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公开(公告)号：US12097776B2
公开(公告)日：2024-09-24
申请号：US17963629
申请日：2022-10-11
Applicant: FORD GLOBAL TECHNOLOGIES, LLC
Inventor： Ji Wu , Yang Xu , Michael W. Degner , Wei Wu
Abstract: An electric drive system is actively controlled while an electrified vehicle is being towed. The inverter switches are manipulated to preclude exceeding a maximum voltage of a DC bus and also to preclude exceeding a maximum phase current magnitude. During a transition from an inverter off state to a short-circuit state, field-oriented control is utilized.
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公开(公告)号：US12088156B2
公开(公告)日：2024-09-10
申请号：US17851963
申请日：2022-06-28
Applicant: Ford Global Technologies, LLC
Inventor： Ji Wu , Michael W. Degner , Wei Wu
IPC: G01R31/327 , H02K11/38 , H02P21/00 , H02P27/00
CPC classification number: H02K11/38 , H02P21/00 , H02P27/00 , H02K2213/03
Abstract: A controller, responsive to a signal indicating deactivation of a vehicle and disconnection of a traction battery from an inverter, generates a d-axis current command for the inverter having a ramp portion that defines a rate of change in current magnitude that depends on an electric angle between a rotor and stator of an electric machine.
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公开(公告)号：US20150015064A1
公开(公告)日：2015-01-15
申请号：US13939828
申请日：2013-07-11
Applicant: FORD GLOBAL TECHNOLOGIES, LLC
Inventor： Ji Wu
IPC: B60L11/18
CPC classification number: B60L11/1803 , B60L15/007 , B60L2240/529 , B60L2270/147 , Y02T10/645 , Y02T10/7005
Abstract: A hybrid powertrain system may include an electric machine, a battery back, a boost converter and at least one controller. The boost converter may include an inductor and be configured to receive input voltage from the battery back and provide an output voltage to the electric machine. The at least one controller may generate a duty cycle command for the boost converter based on a magnitude of input current to the boost converter and a magnitude of ripple associated with a current through the inductor such that for a given commanded voltage, an actual duty cycle for the boost converter changes depending on a direction of the current through the inductor to drive the output voltage to the given commanded voltage.
Abstract translation: 混合动力系统可以包括电机，电池背，升压转换器和至少一个控制器。 升压转换器可以包括电感器并且被配置为从电池接收输入电压并向电机提供输出电压。 所述至少一个控制器可以基于对升压转换器的输入电流的大小和与通过电感器的电流相关联的脉动幅度来产生用于升压转换器的占空比指令，使得对于给定的指令电压，实际占空比 因为升压转换器根据通过电感器的电流的方向而改变，以将输出电压驱动到给定的指令电压。
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公开(公告)号：US20250145011A1
公开(公告)日：2025-05-08
申请号：US18501650
申请日：2023-11-03
Applicant: FORD GLOBAL TECHNOLOGIES, LLC
IPC: B60L15/00 , H02M1/36 , H02M1/38 , H02M7/5395 , H02P27/08
Abstract: A changed polarity complement of a first gate duty cycle command for a next cycle of a carrier wave is generated based on the first gate duty cycle command for a current cycle, the first gate duty cycle command for the next cycle, a second gate duty cycle command for the current cycle, and the second gate duty cycle command for the next cycle. A switch of an inverter is operated according to the changed polarity complement of the first gate duty cycle command.
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Patent Agency Ranking
公开(公告)号：US20240116377A1
公开(公告)日：2024-04-11
申请号：US17963629
申请日：2022-10-11
Applicant: FORD GLOBAL TECHNOLOGIES, LLC
Inventor： Ji Wu , Yang Xu , Michael W. Degner , Wei Wu
Abstract: An electric drive system is actively controlled while an electrified vehicle is being towed. The inverter switches are manipulated to preclude exceeding a maximum voltage of a DC bus and also to preclude exceeding a maximum phase current magnitude. During a transition from an inverter off state to a short-circuit state, field-oriented control is utilized.
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公开(公告)号：US11705849B2
公开(公告)日：2023-07-18
申请号：US17491703
申请日：2021-10-01
Applicant: FORD GLOBAL TECHNOLOGIES, LLC
IPC: H02P27/08 , H02M7/5387 , B60L50/60 , B60K6/28 , B60K6/26
CPC classification number: H02P27/08 , H02M7/53871 , B60K6/26 , B60K6/28 , B60L50/60 , B60Y2200/91 , B60Y2200/92 , B60Y2400/61 , H02P2207/05
Abstract: A vehicle includes a battery, an inverter, a permanent magnet electric machine, and a controller. The controller commands discharge of a storage element of the inverter through the permanent magnet electric machine via a current having a zero quadrature axis component and a positive direct axis component.
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公开(公告)号：US09649941B2
公开(公告)日：2017-05-16
申请号：US13939828
申请日：2013-07-11
Applicant: FORD GLOBAL TECHNOLOGIES, LLC
Inventor： Ji Wu
CPC classification number: B60L11/1803 , B60L15/007 , B60L2240/529 , B60L2270/147 , Y02T10/645 , Y02T10/7005
Abstract: A hybrid powertrain system may include an electric machine, a battery back, a boost converter and at least one controller. The boost converter may include an inductor and be configured to receive input voltage from the battery back and provide an output voltage to the electric machine. The at least one controller may generate a duty cycle command for the boost converter based on a magnitude of input current to the boost converter and a magnitude of ripple associated with a current through the inductor such that for a given commanded voltage, an actual duty cycle for the boost converter changes depending on a direction of the current through the inductor to drive the output voltage to the given commanded voltage.
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公开(公告)号：US20240405644A1
公开(公告)日：2024-12-05
申请号：US18326302
申请日：2023-05-31
Applicant: FORD GLOBAL TECHNOLOGIES, LLC
Inventor： Ji Wu , Baoming Ge
Abstract: An electric drive system includes a power electronics module with a prefabricated DC bus bar assembly. The prefabricated DC bus bar assembly includes a molded bleed resistor which serves two different functions. First, it dissipates energy from a capacitor when the battery is disconnected. Secondly, it physically supports the positive bus bar and the negative bar with respect to one another.
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公开(公告)号：US12081152B2
公开(公告)日：2024-09-03
申请号：US17974713
申请日：2022-10-27
Applicant: Ford Global Technologies, LLC
CPC classification number: H02P27/06 , B60L50/51 , B60L50/60 , B60L2210/40
Abstract: An electrified vehicle includes a traction battery, an inverter coupled to the traction battery via positive and negative legs of a high voltage bus and operable to convert DC power from the traction battery to three-phase AC power, a capacitor connected across the positive and negative legs of the high voltage bus, an electric machine having three phases coupled to the inverter, and a controller programmed to control electric machine voltage toward zero at a first slew rate or control electric machine current to a target short circuit current at a second slew rate in response to an active short request signal and to control the inverter to actively short the three phases of the electric machine after either (a) a specified elapsed time, or (b) after the electric machine voltage is below a first threshold or the current is within a predetermined range of the target short circuit current.
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