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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：US20180058601A1
公开(公告)日：2018-03-01
申请号：US15253166
申请日：2016-08-31
Inventor： Xiujie Gao , Nancy L. Johnson , Ronald R. Semel , Rory P. McIntyre , Mark J. Heikoop , Vijay A. Neelakantan , Bret M. Olson , Tyler P. Ownby , James H. Brown
CPC classification number: F16K31/002 , F03G7/065 , F16K1/12 , F16K1/14 , Y10T137/7737
Abstract: A fluid circuit includes a device, a cooler, and a valve. The valve includes a housing, a sealing member, a biasing device, and an actuator. The sealing member moves inside the housing between a first position and a second position. The actuator includes a smart material that is activated when the temperature of a fluid inside the housing exhibiting at least a first temperature, causing the sealing member to move to the second position. The smart material is deactivated when the fluid is a sufficient number of degrees less than the first temperature, causing the sealing member to move to the first position. The fluid flows from the housing to the device and then to the housing when the sealing member is in the first position. The fluid flows from the housing to the cooler and then to the device when the sealing member is in the second position.
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3.发明授权Electronic transmission range selection subsystem in a hydraulic control system for an automatic transmission 有权用于自动变速器的液压控制系统中的电子变速范围选择子系统公开(公告)号：US09435428B2
公开(公告)日：2016-09-06
申请号：US14944895
申请日：2015-11-18
Applicant: GM Global Technology Operations LLC
Inventor： Vijay A. Neelakantan , Joshua McDonough , Philip C. Lundberg
CPC classification number: F16H61/0267 , F16H61/0021 , F16H61/22 , F16H63/483
Abstract: A hydraulic control system for a transmission is provided. The hydraulic control system includes a source of pressurized hydraulic fluid that communicates with an electronic transmission range selection (ETRS) subsystem. In one example, the ETRS subsystem includes an ETRS enablement valve, an ETRS control valve, a park servo that controls a park mechanism, a plurality of solenoids, and a park inhibit solenoid assembly.
Abstract translation: 提供了一种用于变速器的液压控制系统。 液压控制系统包括与电子变速器范围选择（ETRS）子系统通信的加压液压流体源。 在一个示例中，ETRS子系统包括ETRS启用阀，ETRS控制阀，控制停放机构的驻车伺服器，多个螺线管以及驻车禁止螺线管组件。
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公开(公告)号：US09212743B2
公开(公告)日：2015-12-15
申请号：US13709801
申请日：2012-12-10
Applicant: GM Global Technology Operations LLC
Inventor： Zhe Xie , Vijay A. Neelakantan
IPC: F16H61/664
CPC classification number: F16H61/6649 , F16H61/664 , F16H61/6646 , F16H61/6648
Abstract: A speed ratio containment process limits the speed ratio of a variator for a CVT for a motor vehicle when rolling backward by commanding a speed ratio that is higher than the actual speed ratio in an overdrive direction. Accordingly, the actual speed ratio moves to a lowest limit, which provides maximum torque when a driver of the motor vehicle steps on the accelerator pedal to resume forward motion of the motor vehicle.
Abstract translation: 速比保持过程通过指定在过驱动方向上的实际速比比高的速比来限制机动车辆的CVT的变速器的变速比。 因此，实际变速比移动到最低限度，当驾驶员踏上加速器踏板以恢复机动车辆的向前运动时，其提供最大转矩。
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公开(公告)号：US08807305B2
公开(公告)日：2014-08-19
申请号：US13862892
申请日：2013-04-15
Applicant: GM Global Technology Operations LLC
Inventor： Paul G. Otanez , Shushan Bai , Vijay A. Neelakantan
CPC classification number: F16F15/1407 , F16F15/1414 , F16F15/1421 , F16F15/145 , Y10T74/2128 , Y10T464/50
Abstract: A system for absorbing vibration in a rotary member having a predetermined rotary speed of the present invention has a selectively moveable mass and a positioning mechanism. The mass is in communication with the rotary member having a predetermined position. The positioning mechanism exerts a force on the mass at least when the rotary member operates below the predetermined rotary speed. The force exerted by the positioning mechanism orients the mass at the predetermined position when the rotary member operates below the predetermined rotary speed.
Abstract translation: 本发明的具有规定的转速的旋转部件的振动吸收系统具有选择性地移动的质量和定位机构。 该质量体与具有预定位置的旋转构件连通。 至少当旋转构件在预定转速以下运转时，定位机构对质量施加力。 当旋转构件在预定旋转速度下运行时，由定位机构施加的力将质量定位在预定位置。
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Patent Agency Ranking
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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公开(公告)号：US10571023B2
公开(公告)日：2020-02-25
申请号：US16043864
申请日：2018-07-24
Applicant: GM Global Technology Operations LLC
Inventor： Vijay A. Neelakantan , Marc H. Sullivan , Lawrence A. Kaminsky
Abstract: A method of controlling a vehicle park system in a shift out of park includes receiving a shift out of park request, and commanding a park actuator to rotate an actuator shaft operatively connected to a park pawl movable from an engaged position in which the park pawl is engaged with a park gear, to a disengaged position in which the park pawl is disengaged from the park gear. The method includes determining whether a detent lever operatively connected to the park pawl has moved towards an out of park position within a predetermined period of time after commanding the park actuator to rotate the actuator shaft, and then commanding an electric propulsion motor to apply torque to the transmission output shaft to assist the park actuator if the detent lever has not moved towards the out of park position within the predetermined period of time.
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公开(公告)号：US20200032902A1
公开(公告)日：2020-01-30
申请号：US16043864
申请日：2018-07-24
Applicant: GM Global Technology Operations LLC
Inventor： Vijay A. Neelakantan , Marc H. Sullivan , Lawrence A. Kaminsky
Abstract: A method of controlling a vehicle park system in a shift out of park includes receiving a shift out of park request, and commanding a park actuator to rotate an actuator shaft operatively connected to a park pawl movable from an engaged position in which the park pawl is engaged with a park gear, to a disengaged position in which the park pawl is disengaged from the park gear. The method includes determining whether a detent lever operatively connected to the park pawl has moved towards an out of park position within a predetermined period of time after commanding the park actuator to rotate the actuator shaft, and then commanding an electric propulsion motor to apply torque to the transmission output shaft to assist the park actuator if the detent lever has not moved towards the out of park position within the predetermined period of time.
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公开(公告)号：US20180292005A1
公开(公告)日：2018-10-11
申请号：US15480426
申请日：2017-04-06
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Vijay A. Neelakantan , Suresh Gopalakrishnan , Christopher G. Benson
Abstract: A method for retracting an extended pin of a sliding camshaft actuator wherein the actuator includes a magnetic field generating coil, a magnetic piston in connection with the extended pin operable to be actuated by the magnetic field generating coil, and a pin stop plate. The method comprises creating an air gap between the magnetic piston and the pin stop plate and reversing voltage on the magnetic field generating coil to retract the extended pin.
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公开(公告)号：US09618087B2
公开(公告)日：2017-04-11
申请号：US13916150
申请日：2013-06-12
Applicant: GM Global Technology Operations LLC
Inventor： Edward W. Mellet , James M. Hart , Daryl A. Wilton , Vijay A. Neelakantan
CPC classification number: F16H3/62 , F16H3/66 , F16H2200/0069 , F16H2200/2012 , F16H2200/2046
Abstract: A transmission is provided having an input member, an output member, four planetary gear sets, a four coupling members and a six torque-transmitting mechanisms. Further, a hydraulic fluid control circuit is provided for controlling the operation of the plurality of torque-transmitting devices. The hydraulic fluid control circuit receives pressurized hydraulic fluid from an off-axis hydraulic fluid pump and has a plurality of fluid passages disposed in the transmission house, input member and other coupling members.
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