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公开(公告)号：US11876470B2
公开(公告)日：2024-01-16
申请号：US17169122
申请日：2021-02-05
发明人： Chris Wolf , Michael Degner , Yue Nie
CPC分类号： H02P27/085 , B60K6/26 , B60Y2200/92 , B60Y2400/60 , B60Y2400/61
摘要： Methods and systems are provided for adapting pulse width modulation with randomized zero-sequence components for control of an electrified powertrain of a vehicle. In one example, a method may include determining a zero-sequence voltage of an electric machine of the vehicle based on a random distribution, and adjusting a voltage reference signal of the electric machine based on the determined zero-sequence voltage to decrease ambient acoustic noise in the vehicle. In this way, spectral energy dispersion of pulse width modulated control of the electric machine may be increased without affecting torque production of the electric machine.
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公开(公告)号：US20240262215A1
公开(公告)日：2024-08-08
申请号：US18163682
申请日：2023-02-02
发明人： Chris Wolf , Michael Degner , Yue Nie
CPC分类号： B60L15/2045 , B60L15/08 , B60L2240/12 , B60L2240/423 , B60L2250/26 , B60L2260/40
摘要： Systems and methods for commanding an electric drive system for an electric or hybrid vehicle are described. In one example, the drive system is commanded by a controller that supplies a pulsed torque command that varies in frequency as a function of time when a driver of a vehicle requests a constant driver demand torque.
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公开(公告)号：US20240149700A1
公开(公告)日：2024-05-09
申请号：US18052948
申请日：2022-11-07
发明人： Yue Nie , Christopher Wolf , Michael W. Degner
摘要： A controller, while parameters are indicative of electromagnetic interference exceeding a predetermined value, generates voltage reference vectors or duty cycle commands such that differences between switching times of any two phases of an inverter are always greater than a threshold, and while the parameters are indicative of the electromagnetic interference being less than the predetermined value, generates the voltage reference vectors or duty cycle commands such that the differences are sometimes greater than the threshold and other times less than the threshold.
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公开(公告)号：US20240262217A1
公开(公告)日：2024-08-08
申请号：US18164890
申请日：2023-02-06
发明人： Chris Wolf , Michael W. Degner , Yue Nie , Monty Anderson
CPC分类号： B60L15/2045 , B60L15/08 , B60L2240/423 , B60L2250/26 , B60L2260/40
摘要： Systems and methods for commanding an electric drive system for an electric or hybrid vehicle are described. In one example, the drive system is commanded by a controller that supplies a pulsed torque command that varies in magnitude as a function of time when a driver of a vehicle requests a constant driver demand torque.
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5.发明公开公开(公告)号：US20240239328A1
公开(公告)日：2024-07-18
申请号：US18156244
申请日：2023-01-18
发明人： Chris Wolf , Michael W. Degner , Yue Nie
CPC分类号： B60W20/10 , B60W10/08 , B60W2510/081 , B60W2710/083
摘要： Systems and methods for commanding an electric drive system for an electric or hybrid vehicle are described. In one example, the drive system is commanded by a controller that supplies a pulsed torque command that varies in frequency as a function of electric machine speed when a driver of a vehicle requests a constant driver demand torque.
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公开(公告)号：US20220255487A1
公开(公告)日：2022-08-11
申请号：US17169122
申请日：2021-02-05
发明人： Chris Wolf , Michael Degner , Yue Nie
摘要： Methods and systems are provided for adapting pulse width modulation with randomized zero-sequence components for control of an electrified powertrain of a vehicle. In one example, a method may include determining a zero-sequence voltage of an electric machine of the vehicle based on a random distribution, and adjusting a voltage reference signal of the electric machine based on the determined zero-sequence voltage to decrease ambient acoustic noise in the vehicle. In this way, spectral energy dispersion of pulse width modulated control of the electric machine may be increased without affecting torque production of the electric machine.
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7.发明申请公开(公告)号：US20200079287A1
公开(公告)日：2020-03-12
申请号：US16122929
申请日：2018-09-06
发明人： Chris Wolf , Michael Degner , Yue Nie
摘要： This disclosure relates to an electrified vehicle and a method for providing driver feedback by producing a torque ripple. An exemplary electrified vehicle includes, among other things, an electric machine configured to generate a torque output, and a controller configured to selectively adjust the torque output to produce a torque ripple in response to a triggering event.
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