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    PRESS-FIT INSTALLATION TOOL WITH DYNAMIC LOAD ASSIST AND METHOD OF PRESS-FITTING
    1.
    发明申请
    PRESS-FIT INSTALLATION TOOL WITH DYNAMIC LOAD ASSIST AND METHOD OF PRESS-FITTING 有权
    具有动态负载辅助装置的压力安装工具和压配合方法

    公开(公告)号：US20160129571A1

    公开(公告)日：2016-05-12

    申请号：US14538844

    申请日：2014-11-12

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Brian D. Christoff ,  Travis S. Larson

    IPC: B25B27/02 ,  B25B27/00

    CPC classification number: B25B27/02

    Abstract: A tool has a biased piston, a plunger, and a base contained in a tool body. The plunger is positioned between the biased piston and the base and in contact with the base. A tool head is fixed to the base and extends outside of the tool body. The tool body is configured to be movable along a longitudinal axis relative to the base and plunger to move the plunger to load the piston when a load is applied to the tool body along a first load path. The tool body, the base, and the biased piston are configured to align the plunger with the longitudinal axis only when the load applied along the first load path is at least a first predetermined load, and thereby release stored energy of the piston as a dynamic load applied to the tool head along a second load path.

    Abstract translation: 工具具有偏置的活塞，柱塞和包含在工具主体中的底座。 柱塞位于偏置的活塞和基座之间并与基座接触。 工具头固定到基座并延伸到工具主体的外部。 工具主体构造成当沿着第一负载路径向工具主体施加负载时，可相对于基座和柱塞沿着纵向轴线移动以移动柱塞以加载活塞。 只有当沿着第一负载路径施加的负载至少为第一预定负载时，工具主体，基座和偏置活塞被构造成使柱塞与纵向轴线对准，并且由此将活塞的储存能量释放为动态 沿着第二负载路径施加到工具头的负载。

    Hydraulically operated actuator for controlling vehicle ride height
    2.
    发明授权
    Hydraulically operated actuator for controlling vehicle ride height 有权

    公开(公告)号：US10160279B2

    公开(公告)日：2018-12-25

    申请号：US15359763

    申请日：2016-11-23

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Najmuddin Khaja ,  Brian D. Christoff ,  Joshua T. Cyrul

    IPC: B60G15/06 ,  B60G17/016 ,  B60G11/14 ,  B60G13/16 ,  B60G17/027

    Abstract: A hydraulic actuator assembly is configured to receive a pressurized fluid from a pump. The hydraulic actuator assembly includes a housing and a piston arranged concentrically with respect to a longitudinal axis, wherein the housing is configured to receive a first portion of the pressurized fluid to displace the piston relative to the housing. The hydraulic actuator assembly also includes a sleeve arranged concentrically with respect to the housing and to the piston, and configured to restrain the piston relative to the housing and receive a second portion of the pressurized fluid from the pump to selectively release the piston. A vehicle including a suspension corner connecting the vehicle's road wheel to the vehicle's body, the fluid pump, and the subject hydraulic actuator assembly to change the vehicle's ride height at the suspension corner is also disclosed. The vehicle may also include a controller configured to control the actuator assembly.

    Spring-based force-feedback device
    6.
    发明授权
    Spring-based force-feedback device 有权

    公开(公告)号：US10155505B2

    公开(公告)日：2018-12-18

    申请号：US15381256

    申请日：2016-12-16

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Brian D. Christoff ,  John K. Dagg ,  Michael L. Bailey

    IPC: G05G1/30 ,  B60T7/04 ,  G05G5/03 ,  B60K26/02 ,  G05G5/05 ,  G05G1/38 ,  B62D5/00

    Abstract: A force-feedback assembly includes a first shaft with a shaft end. The first shaft is movable between a shaft first position and a shaft second position. The force-feedback assembly also includes a compliant element arranged to exert a return force on the first shaft and bias the first shaft toward the shaft first position. The force-feedback assembly additionally includes a ramp in sliding engagement with the shaft end. The force-feedback assembly further includes an operator input device operatively coupled to the ramp. The operator input device has a device first position and a device second position. Moving the operator input device from the device first position to the device second position slides the ramp relative to the shaft end and moves the first shaft from the shaft first position to the shaft second position.

    Spring-Based Force-Feedback Device
    7.
    发明申请
    Spring-Based Force-Feedback Device 审中-公开

    公开(公告)号：US20180170325A1

    公开(公告)日：2018-06-21

    申请号：US15381256

    申请日：2016-12-16

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Brian D. Christoff ,  John K. Dagg ,  Michael L. Bailey

    IPC: B60T7/04 ,  G05G5/05 ,  G05G1/38

    CPC classification number: B60T7/042 ,  B60K26/021 ,  B62D5/005 ,  G05G1/44 ,  G05G5/03

    Abstract: A force-feedback assembly includes a first shaft with a shaft end. The first shaft is movable between a shaft first position and a shaft second position. The force-feedback assembly also includes a compliant element arranged to exert a return force on the first shaft and bias the first shaft toward the shaft first position. The force-feedback assembly additionally includes a ramp in sliding engagement with the shaft end. The force-feedback assembly further includes an operator input device operatively coupled to the ramp. The operator input device has a device first position and a device second position. Moving the operator input device from the device first position to the device second position slides the ramp relative to the shaft end and moves the first shaft from the shaft first position to the shaft second position.

    Press-fit installation tool with dynamic load assist and method of press-fitting
    8.
    发明授权
    Press-fit installation tool with dynamic load assist and method of press-fitting 有权

    公开(公告)号：US09808921B2

    公开(公告)日：2017-11-07

    申请号：US14538844

    申请日：2014-11-12

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Brian D. Christoff ,  Travis S. Larson

    IPC: B23P19/00 ,  B25B27/02

    CPC classification number: B25B27/02

    Abstract: A tool has a biased piston, a plunger, and a base contained in a tool body. The plunger is positioned between the biased piston and the base and in contact with the base. A tool head is fixed to the base and extends outside of the tool body. The tool body is configured to be movable along a longitudinal axis relative to the base and plunger to move the plunger to load the piston when a load is applied to the tool body along a first load path. The tool body, the base, and the biased piston are configured to align the plunger with the longitudinal axis only when the load applied along the first load path is at least a first predetermined load, and thereby release stored energy of the piston as a dynamic load applied to the tool head along a second load path.

    Control of adjustable ride height suspension
    9.
    发明授权
    Control of adjustable ride height suspension 有权

    公开(公告)号：US09643466B1

    公开(公告)日：2017-05-09

    申请号：US15092246

    申请日：2016-04-06

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Brian D. Christoff ,  John K. Dagg ,  Robert G. Izak ,  Christian E. Thomas

    IPC: B60G17/015 ,  B60G17/005

    CPC classification number: B60G17/015 ,  B60G3/20 ,  B60G17/005 ,  B60G17/0272 ,  B60G2200/144 ,  B60G2500/30 ,  B60G2800/914

    Abstract: A vehicle includes a suspension corner connecting the vehicle's road wheel to the vehicle's body and characterized by a ride height at the suspension corner. An actuator at the suspension corner is configured to selectively extend and contract in response to a volume of received pressurized fluid to selectively increase and reduce the ride height. The actuator includes a locking device configured to selectively restrain the piston in a predetermined position and release the piston, and includes an actuation mechanism for activating the device to restrain the piston in the predetermined position. A controller is configured to determine if a change in the ride height is required and to assess if the piston is restrained by the locking device. If the piston is restrained by the locking device and the change in ride height is required, the controller releases the piston via the device and then changes the ride height.

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