公开(公告)号：US20190145440A1

公开(公告)日：2019-05-16

申请号：US15814899

申请日：2017-11-16

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Michael A. Fisher ,  Vijay A. Neelakantan

IPC: F15B21/04 ,  F15B1/26

Abstract: A fluid management system for an automotive propulsion system is provided. The fluid management system includes a conduit system configured to deliver hydraulic fluid. A housing defining a sump is configured to collect a volume of hydraulic fluid and gaseous fluid. At least one intake valve is disposed in selective fluid communication with the conduit system and the sump. The intake valve(s) is/are configured to allow the passage of the hydraulic fluid from the sump to the conduit system and to substantially prevent the passage of the gaseous fluid from the sump to the conduit system. Thus, hydraulic fluid that is substantially free of air is provided to hydraulic system components downstream of the intake valve(s).

公开(公告)号：US20180106370A1

公开(公告)日：2018-04-19

申请号：US15294872

申请日：2016-10-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Vijay A. Neelakantan ,  Christopher G. Benson

IPC: F16H63/34 ,  F16H21/44 ,  F16H1/06

CPC classification number: F16H63/3466 ,  F16H1/06 ,  F16H21/44 ,  F16H35/18 ,  F16H63/3475

Abstract: A vehicle includes a prime mover in communication with an input shaft of a transmission, an output shaft of the transmission in communication with a final drive and drive wheels, a park actuator system internal to a housing of the transmission and a park control system mounted to an external surface of the housing of the transmission with a pivot shaft extending through the housing that connects to the park actuator system to selectively place the park actuator system in one of a park configuration and an out of park configuration.

公开(公告)号：US09939077B2

公开(公告)日：2018-04-10

申请号：US15253166

申请日：2016-08-31

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC ,  BEND ALL AUTOMOTIVE INC. ,  DYNALLOY, INC

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

IPC: F16K17/20 ,  F16K31/00 ,  F16K1/12 ,  F16K1/14 ,  F16K3/02 ,  F03G7/06 ,  F16K15/18

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.

公开(公告)号：US20180058600A1

公开(公告)日：2018-03-01

申请号：US15253160

申请日：2016-08-31

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC ,  DYNALLOY, INC.

Inventor： Xiujie Gao ,  Nancy L. Johnson ,  Bret M. Olson ,  Vijay A. Neelakantan ,  Tyler P. Ownby ,  James H. Brown

IPC: F16K31/00 ,  F16K1/12 ,  F03G7/06

CPC classification number: F16K31/002 ,  F03G7/065 ,  F16K1/12 ,  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.

公开(公告)号：US20180023635A1

公开(公告)日：2018-01-25

申请号：US15214041

申请日：2016-07-19

Applicant: GM Global Technology Operations LLC

Inventor： Vijay A. Neelakantan ,  Joseph R. Littlefield ,  Lawrence A. Kaminsky

IPC: F16D25/08 ,  F16D13/52 ,  F16H1/28 ,  F16D11/14

CPC classification number: F16D25/082 ,  F16D11/14 ,  F16D13/52 ,  F16D25/061 ,  F16D2011/006 ,  F16D2121/04 ,  F16D2121/14 ,  F16D2127/06 ,  F16H1/28

Abstract: A clutch assembly having a first clutch member, a second clutch member axially slidable in a first axial direction to engage the first clutch member and in a second axial direction to disengage from the first clutch member, a spring biasing the second clutch member in one of the axial directions, a piston actuatable to move the second clutch member in the other of the axial directions, thereby overcoming a biasing force of the spring, and a latching device to selectively lock the piston in at least one of the first axial direction and second axial direction. The latching device includes a selectively retractable locking pin. The piston has an external surface defining a slot to receive the locking pin, thereby locking the piston in the first position or the second position. A method of operating the clutch assembly is provided.

公开(公告)号：US20170248178A1

公开(公告)日：2017-08-31

申请号：US15056732

申请日：2016-02-29

Applicant: GM Global Technology Operations LLC

Inventor： Vijay A. Neelakantan ,  Ajit Singh Grewal

IPC: F16D48/02 ,  F16D11/14 ,  F16D25/12 ,  F16D25/08

CPC classification number: F16D48/02 ,  F16D11/14 ,  F16D25/08 ,  F16D25/123 ,  F16D25/14 ,  F16D2048/0209 ,  F16D2048/0221 ,  F16D2048/0257

Abstract: A hydraulic control system includes a hydraulic pump driven by an electric motor, a solenoid valve having an output that controls the positions of a pressure regulator valve and a third, stator shift valve. The solenoid valve is a normally high, variable force solenoid valve which provides a control signal to the second and third valves. The second, pressure regulator valve is a multiple port valve which controls hydraulic fluid flow both to a transmission oil cooler (ATOC) and to an exhaust port, thereby maintaining a desired system pressure. The third, stator shift valve is also a multiple port valve and it controls fluid flow to the stator of the electric pump motor to provide cooling and to a dog clutch of the transmission to disengage it.

公开(公告)号：US20160167635A1

公开(公告)日：2016-06-16

申请号：US14570329

申请日：2014-12-15

Applicant: GM Global Technology Operations LLC

Inventor： Vijay A. Neelakantan ,  Joshua McDonough ,  Matthew R. Knoth ,  Philip C. Lundberg

IPC: B60T13/68 ,  B60T13/66

CPC classification number: B60T13/686 ,  B60T13/662

Abstract: A hydraulic control system for a transmission includes a source of pressurized hydraulic fluid, a park servo connected to a park mechanism, the park servo having a park side, an out-of-park side, and a biasing member disposed on the park side. A first valve assembly includes a first inlet port in fluid communication with the source of pressurized hydraulic fluid, a first outlet port, and a first valve for selectively allowing fluid communication between the first inlet port and the first outlet port. A second valve assembly includes a second inlet port in direct fluid communication downstream of the first valve assembly, a second outlet port in direct fluid communication with the out-of-park side of the park servo, and a second valve moveable between an out-of-park position and a park position.

Abstract translation: 用于变速器的液压控制系统包括加压液压流体源，连接到停放机构的驻车伺服机构，具有驻车侧的驻车伺服机构，驻车外侧以及设置在停车侧的偏置构件。 第一阀组件包括与加压液压流体源流体连通的第一入口端口，第一出口端口和用于选择性地允许第一入口端口和第一出口端口之间的流体连通的第一阀门。 第二阀组件包括在第一阀组件的下游直接流体连通的第二入口端口，与停放伺服器的停车外侧直接流体连通的第二出口端口，以及第二阀门， 公园位置和公园位置。

公开(公告)号：US20130237329A1

公开(公告)日：2013-09-12

申请号：US13870588

申请日：2013-04-25

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Shushan Bai ,  Paul G. Otanez ,  Vijay A. Neelakantan ,  Donald L. Dusenberry

IPC: F16F15/14 ,  F16D3/12

CPC classification number: F16F15/145 ,  F16D3/12 ,  F16D3/66 ,  F16F15/123

Abstract: A system for absorbing vibration created by operation of an engine of the present invention includes a first plate driven by an engine shaft and a torque transmitting device for transferring torque from the engine shaft to a transmission input shaft. The system includes a first vibration absorber and a second vibration absorber. The first vibration absorber includes at least one selectively moveable mass. The second vibration absorber includes at least one biasing member and generally opposing ends. The first vibration absorber is configured to absorb vibrations created at a first harmonic of the engine and the second vibration absorber is configured to absorb vibrations created at multiple harmonics of the engine.

Abstract translation: 用于吸收由本发明的发动机操作产生的振动的系统包括由发动机轴驱动的第一板和用于将扭矩从发动机轴传递到变速器输入轴的扭矩传递装置。 该系统包括第一振动吸收器和第二振动吸收器。 第一振动吸收器包括至少一个选择性可移动的质量块。 第二振动吸收器包括至少一个偏置构件和大致相对的端部。 第一减震器构造成吸收在发动机的一次谐波处产生的振动，并且第二减震器构造成吸收在发动机的多次谐波处产生的振动。