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公开(公告)号：US20210010832A1
公开(公告)日：2021-01-14
申请号：US16506387
申请日：2019-07-09
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Young Joo Lee , Anno Yoo , Milan A. Vadera , Daniel J. Berry
Abstract: A resolver disposed to monitor a rotatable member is described, along with an associated method for evaluating an output signal therefrom. The method for monitoring the resolver includes supplying an excitation signal to the resolver, and monitoring, at an oversampling rate, first and second output signals from the resolver. An oversampling routine is executed to determine averages of the first and second output signals from the resolver. A demodulation angle error is determined based upon the first and second output signals from the resolver, and provided as feedback. A position of the resolver is also determined based upon the first and second output signals from the resolver.
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公开(公告)号：US10608562B1
公开(公告)日：2020-03-31
申请号：US16181801
申请日：2018-11-06
Applicant: GM Global Technology Operations LLC
Inventor： Young Joo Lee , Kibok Lee , Brian J. Gallert
Abstract: In an example, a system is disclosed. The system includes a rotor position estimation module configured to generate an adjustment signal to adjust a desired torque signal for a motor. The rotor position estimation module includes a sensor offset estimation module configured to estimate an offset position of a sensor based on (1) a motor current signal indicative of a current to rotate a rotor within the motor, (2) a motor voltage signal indicative of a voltage applied to a power inverter that provides the current to the motor, and (3) a motor parameter. The sensor can be disposed on the rotor. The rotor position estimation module also includes a speed adjustment module configured to generate the adjustment signal based on the estimated offset position.
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公开(公告)号：US10162680B2
公开(公告)日：2018-12-25
申请号：US15376730
申请日：2016-12-13
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Young Joo Lee , Daniel J. Berry , Brian A. Welchko
Abstract: A method of exchanging data in a real-time operating system, between a primary core and a secondary core in a multi-core processor, includes executing a primary path via the primary core and executing a secondary path via the secondary core. The primary path is configured to be a relatively faster processing task and the secondary path is configured to be a relatively slower processing task. The method includes devising a freeze in process flag to have a respective flag status set and cleared by the primary path. The method includes devising a data frozen flag to have a respective flag status set and cleared by both the primary and the secondary paths. A component that is operatively connected to the multi-core processor may be controlled based at least partially on a difference between primary and secondary sets of calculations executed by the primary and secondary cores, respectively.
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公开(公告)号：US20170317631A1
公开(公告)日：2017-11-02
申请号：US15139723
申请日：2016-04-27
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Young Joo Lee , Bon Ho Bae , Yo Chan Son
CPC classification number: H02P21/05 , B60K1/00 , B60K6/48 , B60L15/20 , B60L50/15 , B60L2240/421 , B60L2240/423 , B60W10/08 , B60W20/15 , B60W30/20 , B60W40/12 , B60W2510/081 , B60W2510/082 , B60W2510/088 , B60W2710/083 , F02D31/00 , F02D41/021 , F02N11/006 , F02N11/04 , F02N11/0866 , F02N15/08 , F02N2011/0888 , F02N2011/0896 , H02P6/08 , H02P6/10 , H02P6/17 , H02P23/12 , H02P27/085 , H02P2101/45 , Y02T10/644 , Y02T10/645 , Y02T10/7077 , Y02T10/72 , Y02T10/7275
Abstract: A powertrain system including an electric machine rotatably coupled to a crankshaft of an internal combustion engine via a belt is described, wherein the electric machine is disposed to generate torque. A method for controlling the electric machine includes monitoring rotational position of the electric machine, and periodically executing a speed observer to determine a rotational speed of the electric machine based upon the monitored rotational position of the electric machine. An acceleration observer is periodically executed to determine an acceleration rate, wherein the acceleration rate is determined based upon a time-based change in the rotational speed of the electric machine. A virtual inertia term is determined based upon the acceleration rate, and a torque compensation term is determined based upon the virtual inertia term and the acceleration rate. The electric machine is controlled to generate torque based upon the torque compensation term.
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公开(公告)号：US11415216B2
公开(公告)日：2022-08-16
申请号：US16807758
申请日：2020-03-03
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Qiang Mei , Vijay A. Neelakantan , Young Joo Lee , Brian A. Welchko
Abstract: An apparatus and a method for controlling operation of a vehicle includes a controller having a processor and a tangible, non-transitory memory. The vehicle includes a park assembly with a park actuator motor having an actuator shaft. The vehicle has a park mode and an out-of-park mode. The controller is configured to determine if the park actuator motor has reached an out-of-park position when a shift command to the out-of-park mode is received. The controller is configured to obtain and store at least one dynamic parameter associated with the park actuator motor prior to the detent member reaching the out-of-park position. The method includes determining a load factor based on the dynamic parameter over time when at least one of a predefined time threshold and a predefined motor position threshold is reached. Operation of the vehicle is controlled based at least partially on the load factor.
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Patent Agency Ranking
公开(公告)号：US10601358B1
公开(公告)日：2020-03-24
申请号：US16157624
申请日：2018-10-11
Applicant: GM Global Technology Operations LLC
Inventor： Kibok Lee , Young Joo Lee
Abstract: A current command module is configured to, based on a motor torque request for an electric motor of the vehicle, generate a d-axis current command for the electric motor and a q-axis current command for the electric motor. A voltage command module is configured to generate voltage commands based on the d-axis current command and the q-axis current command. A switching control module is configured to: based on the d-axis current command and the q-axis current command, determine a first duty cycle command for a phase of the electric motor; generate a second duty cycle command based on the first duty cycle command, a predetermined minimum period to transition switches of an inverter module from OFF to ON, a predetermined switching period, a predetermined deadtime period when both of the switches are OFF before one of the switches is turned ON, and whether a current of the phase is positive.
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公开(公告)号：US20210277992A1
公开(公告)日：2021-09-09
申请号：US16807758
申请日：2020-03-03
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Qiang Mei , Vijay A. Neelakantan , Young Joo Lee , Brian A. Welchko
Abstract: An apparatus and a method for controlling operation of a vehicle includes a controller having a processor and a tangible, non-transitory memory. The vehicle includes a park assembly with a park actuator motor having an actuator shaft. The vehicle has a park mode and an out-of-park mode. The controller is configured to determine if the park actuator motor has reached an out-of-park position when a shift command to the out-of-park mode is received. The controller is configured to obtain and store at least one dynamic parameter associated with the park actuator motor prior to the detent member reaching the out-of-park position. The method includes determining a load factor based on the dynamic parameter over time when at least one of a predefined time threshold and a predefined motor position threshold is reached. Operation of the vehicle is controlled based at least partially on the load factor.
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公开(公告)号：US20230347744A1
公开(公告)日：2023-11-02
申请号：US17731988
申请日：2022-04-28
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Michael Duncan Swartz , Young Joo Lee , Brian J. Gallert , Anno Yoo
CPC classification number: B60L3/0061 , G01P3/44 , G01D5/24485 , B60L2240/12
Abstract: A method and system are contemplated for determining a final speed and position of a motor used in an electric vehicle. The final speed and position is calculated as a function of a sensed position when a resolver of a position system is available and as a function of a sensorless position when the resolver is unavailable.
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公开(公告)号：US11209291B2
公开(公告)日：2021-12-28
申请号：US16506387
申请日：2019-07-09
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Young Joo Lee , Anno Yoo , Milan A. Vadera , Daniel J. Berry
Abstract: A resolver disposed to monitor a rotatable member is described, along with an associated method for evaluating an output signal therefrom. The method for monitoring the resolver includes supplying an excitation signal to the resolver, and monitoring, at an oversampling rate, first and second output signals from the resolver. An oversampling routine is executed to determine averages of the first and second output signals from the resolver. A demodulation angle error is determined based upon the first and second output signals from the resolver, and provided as feedback. A position of the resolver is also determined based upon the first and second output signals from the resolver.
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公开(公告)号：US10734935B2
公开(公告)日：2020-08-04
申请号：US15712223
申请日：2017-09-22
Applicant: GM Global Technology Operations LLC
Inventor： Young Joo Lee , Sangyeop Kwak
Abstract: A method is provided for controlling a transition between over-modulation and six-step pulse width modulation (PWM) modes in an electrical system having a polyphase electric machine driven by a polyphase output voltage of a power inverter. The method includes receiving input values via a PWM controller, including a holding angle, rotational speed of the electric machine, and present voltage angle of the power inverter. The method includes calculating a future voltage angle of the inverter using the input values and adjusting pulse widths of a baseline PWM pulse train based on a duty cycle of the power inverter. The power inverter output voltage is controlled during the transition using the adjusted baseline PWM pulse train, such that the transition is continuous. An electrical system includes the power supply, power inverter, electric machine, and the PWM controller, the latter of which is configured to execute the method.
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