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1.发明授权公开(公告)号：US09762164B2
公开(公告)日：2017-09-12
申请号：US14859174
申请日：2015-09-18
Applicant: Faraday & Future Inc.
Inventor： Mengwei Li Campbell , Steven E. Schulz
Abstract: In one aspect, an apparatus includes a motor and inverter configured to provide input power to the motor. The apparatus may also include a data store comprising at least one entry including a first torque command, a first motor speed, and a first DC voltage value, where the first torque command and the first motor speed and the first DC voltage value are associated with a first current output and a processor. The processor receives a torque input, a DC voltage input, and a motor speed input and identifies the current output associated with the torque input, the DC voltage input, and the motor speed input based on another motor speed different than the motor speed input and another DC voltage different than the DC voltage input and the motor speed input, and output the determined current output to cause the inverter to provide the input power to the motor.
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公开(公告)号：US20200031233A1
公开(公告)日：2020-01-30
申请号：US16044400
申请日：2018-07-24
Applicant: Faraday&Future Inc.
Inventor： Mengwei Li Campbell
Abstract: The present disclosure generally relates to operating an electric vehicle (EV) during a fault condition. The EV drive system comprises a motor configured to provide motive force to the EV. The EV processing system can to run a diagnostic routine to monitor the drive system for the fault condition. In response to identifying that the drive system is in the fault condition, the processing system can determine whether the fault condition was caused a three-phase short circuit or a three-phase open circuit. The processing system can estimate a motor torque for the motor based at least partly on the motor speed and on whether the fault condition was caused by the three-phase short circuit or the three-phase open circuit, and can use the estimated motor torque to control the drive system to provide motive force to the EV while operating in the fault condition.
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公开(公告)号：US10744879B2
公开(公告)日：2020-08-18
申请号：US16044400
申请日：2018-07-24
Applicant: Faraday & Future Inc.
Inventor： Mengwei Li Campbell
Abstract: The present disclosure generally relates to operating an electric vehicle (EV) during a fault condition. The EV drive system comprises a motor configured to provide motive force to the EV. The EV processing system can to run a diagnostic routine to monitor the drive system for the fault condition. In response to identifying that the drive system is in the fault condition, the processing system can determine whether the fault condition was caused a three-phase short circuit or a three-phase open circuit. The processing system can estimate a motor torque for the motor based at least partly on the motor speed and on whether the fault condition was caused by the three-phase short circuit or the three-phase open circuit, and can use the estimated motor torque to control the drive system to provide motive force to the EV while operating in the fault condition.
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4.发明申请公开(公告)号：US20170085199A1
公开(公告)日：2017-03-23
申请号：US14859174
申请日：2015-09-18
Applicant: Faraday&Future Inc.
Inventor： Mengwei Li Campbell , Steven E. Schulz
Abstract: In one aspect, an apparatus includes a motor and inverter configured to provide input power to the motor. The apparatus may also include a data store comprising at least one entry including a first torque command, a first motor speed, and a first DC voltage value, where the first torque command and the first motor speed and the first DC voltage value are associated with a first current output and a processor. The processor receives a torque input, a DC voltage input, and a motor speed input and identifies the current output associated with the torque input, the DC voltage input, and the motor speed input based on another motor speed different than the motor speed input and another DC voltage different than the DC voltage input and the motor speed input, and output the determined current output to cause the inverter to provide the input power to the motor.
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公开(公告)号：US20180322231A1
公开(公告)日：2018-11-08
申请号：US15772041
申请日：2016-10-27
Applicant: Faraday&Future Inc.
Inventor： Mengwei Li Campbell , Jie Dang
CPC classification number: G06F17/5018 , G01R31/34 , G01R33/02 , G06F2217/12
Abstract: Methods and apparatus for estimating and minimizing core losses in interior magnet machines are disclosed. Methods can include creating, modifying, or receiving a finite element analysis (FEA) model to represent at least one portion of an motor in a computer system, placing at least one coil at a first location within the rotor iron or stator iron of the motor in the FEA model, calculating a time-domain flux density B of the at least one coil, converting the calculated flux density function to a frequency-domain spectrum, receiving material core loss parameters for at least some frequencies indicated by the frequency-domain spectrum, and determining a core loss of the at least one portion of an electric motor by a weighted combination of the material core loss parameters. Coils may be placed manually by a user through a user interface, or may be placed automatically.
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Patent Agency Ranking
公开(公告)号：US20180138841A1
公开(公告)日：2018-05-17
申请号：US15630829
申请日：2017-06-22
Applicant: Faraday&Future Inc.
Inventor： Mengwei Li Campbell , Stefan Grubic
Abstract: A system for controlling an electric motor is disclosed. The system includes a position sensor configured to measure a physical position of a rotor of the electric motor; and a position estimator. The position estimator is configured to: inject a voltage signal having a predetermined frequency into the electric motor, generate an estimated position of a rotor flux based on a feedback current signal in response to the injected voltage signal, and compensate for an offset between the physical position measured by the position sensor and an actual position of the rotor flux based on the estimated position.
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公开(公告)号：US20210224440A1
公开(公告)日：2021-07-22
申请号：US17131396
申请日：2020-12-22
Applicant: Faraday&Future Inc.
Inventor： Mengwei Li Campbell , Jie Dang
Abstract: Methods and apparatus for estimating and minimizing core losses in interior magnet machines are disclosed. Methods can include creating, modifying, or receiving a finite element analysis (FEA) model to represent at least one portion of an motor in a computer system, placing at least one coil at a first location within the rotor iron or stator iron of the motor in the FEA model, calculating a time-domain flux density B of the at least one coil, converting the calculated flux density function to a frequency-domain spectrum, receiving material core loss parameters for at least some frequencies indicated by the frequency-domain spectrum, and determining a core loss of the at least one portion of an electric motor by a weighted combination of the material core loss parameters. Coils may be placed manually by a user through a user interface, or may be placed automatically.
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公开(公告)号：US10084399B2
公开(公告)日：2018-09-25
申请号：US15630829
申请日：2017-06-22
Applicant: Faraday & Future Inc.
Inventor： Mengwei Li Campbell , Stefan Grubic
Abstract: A system for controlling an electric motor is disclosed. The system includes a position sensor configured to measure a physical position of a rotor of the electric motor; and a position estimator. The position estimator is configured to: inject a voltage signal having a predetermined frequency into the electric motor, generate an estimated position of a rotor flux based on a feedback current signal in response to the injected voltage signal, and compensate for an offset between the physical position measured by the position sensor and an actual position of the rotor flux based on the estimated position.
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9.发明授权公开(公告)号：US09768719B2
公开(公告)日：2017-09-19
申请号：US14859182
申请日：2015-09-18
Applicant: Faraday&Future Inc.
Inventor： Mengwei Li Campbell , Steven E. Schulz
CPC classification number: H02P21/22 , H02P21/0089 , H02P21/06 , H02P21/12 , H02P27/06
Abstract: In one aspect, an apparatus includes a motor and inverter configured to provide input power to the motor and a data store comprising at least one entry including a first torque command, a first motor speed, and a first DC voltage value. The first torque command and the first motor speed and the first DC voltage value are associated with a first current output. The apparatus includes a processor configured to receive a torque input, a DC voltage input, and a motor speed input and determine an output current associated with the torque input, the DC voltage input, and the motor speed input, correct the output current to be within a voltage constraint of the motor when the DC voltage input is than a reference voltage at the motor and output the corrected output current to cause the inverter to provide the input power to the motor.
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10.发明申请公开(公告)号：US20170085200A1
公开(公告)日：2017-03-23
申请号：US14859182
申请日：2015-09-18
Applicant: Faraday&Future Inc.
Inventor： Mengwei Li Campbell , Steven E. Schulz
CPC classification number: H02P21/22 , H02P21/0089 , H02P21/06 , H02P21/12 , H02P27/06
Abstract: In one aspect, an apparatus includes a motor and inverter configured to provide input power to the motor and a data store comprising at least one entry including a first torque command, a first motor speed, and a first DC voltage value. The first torque command and the first motor speed and the first DC voltage value are associated with a first current output. The apparatus includes a processor configured to receive a torque input, a DC voltage input, and a motor speed input and determine an output current associated with the torque input, the DC voltage input, and the motor speed input, correct the output current to be within a voltage constraint of the motor when the DC voltage input is than a reference voltage at the motor and output the corrected output current to cause the inverter to provide the input power to the motor.
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