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    Height adjustable damping device
    3.
    发明授权
    Height adjustable damping device 有权
    高度可调阻尼装置

    公开(公告)号：US09186951B2

    公开(公告)日：2015-11-17

    申请号：US14105273

    申请日：2013-12-13

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Peter J. Soles ,  John K. Dagg

    IPC: B60G17/08 ,  F16F9/53 ,  B60G13/06 ,  B60G13/12 ,  F16F9/16 ,  B60G17/00

    CPC classification number: B60G17/08 ,  B60G13/06 ,  B60G13/12 ,  B60G17/00 ,  B60G17/0157 ,  B60G17/044 ,  B60G2202/24 ,  B60G2202/322 ,  B60G2400/25 ,  B60G2500/10 ,  B60G2500/30 ,  B60G2600/26 ,  F16F9/165 ,  F16F9/535 ,  F16F9/56 ,  F16F2224/045

    Abstract: A damping device includes a housing defining a pressure chamber, containing a magnetorheological fluid. A rod is slideably coupled to the housing to adjust a length of the housing. A piston is attached to the rod and disposed within the pressure chamber. The piston is immersed within the magnetorheological fluid, and separates the pressure chamber into a first half and a second half. An electromagnet is disposed in magnetic contact with the magnetorheological fluid, and is operable to apply a magnetic field to the magnetorheological fluid to increase viscosity of the magnetorheological fluid to prevent movement of the rod relative to the housing. The magnetorheological fluid is free to flow through a fluid port in the piston, between a first half and a second half of the pressure chamber, in the absence of the magnetic field from the magnetic source to allow adjustment of the length.

    Abstract translation: 阻尼装置包括限定包含磁流变流体的压力室的壳体。 杆可滑动地联接到壳体以调节壳体的长度。 活塞附接到杆并设置在压力室内。 将活塞浸入磁流变流体中，并将​​压力室分成上半部和下半部。 电磁体设置成与磁流变流体磁接触，并且可操作以将磁场施加到磁流变流体，以增加磁流变流体的粘度，以防止杆相对于壳体的移动。 在不存在来自磁源的磁场以允许调整长度的情况下，磁流变流体可自由地流过活塞的流体端口，在压力室的前半部和第二半部之间。

    Spring-based force-feedback device
    4.
    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
    5.
    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.

    Control of adjustable ride height suspension
    6.
    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.

    HEIGHT ADJUSTABLE DAMPING DEVICE
    7.
    发明申请
    HEIGHT ADJUSTABLE DAMPING DEVICE 有权
    高度可调节阻尼装置

    公开(公告)号：US20150165860A1

    公开(公告)日：2015-06-18

    申请号：US14105273

    申请日：2013-12-13

    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

    Inventor： Peter J. Soles ,  John K. Dagg

    IPC: B60G17/08 ,  B60G13/06 ,  F16F9/53

    CPC classification number: B60G17/08 ,  B60G13/06 ,  B60G13/12 ,  B60G17/00 ,  B60G17/0157 ,  B60G17/044 ,  B60G2202/24 ,  B60G2202/322 ,  B60G2400/25 ,  B60G2500/10 ,  B60G2500/30 ,  B60G2600/26 ,  F16F9/165 ,  F16F9/535 ,  F16F9/56 ,  F16F2224/045

    Abstract: A damping device includes a housing defining a pressure chamber, containing a magnetorheological fluid. A rod is slideably coupled to the housing to adjust a length of the housing. A piston is attached to the rod and disposed within the pressure chamber. The piston is immersed within the magnetorheological fluid, and separates the pressure chamber into a first half and a second half. An electromagnet is disposed in magnetic contact with the magnetorheological fluid, and is operable to apply a magnetic field to the magnetorheological fluid to increase viscosity of the magnetorheological fluid to prevent movement of the rod relative to the housing. The magnetorheological fluid is free to flow through a fluid port in the piston, between a first half and a second half of the pressure chamber, in the absence of the magnetic field from the magnetic source to allow adjustment of the length.

    Abstract translation: 阻尼装置包括限定包含磁流变流体的压力室的壳体。 杆可滑动地联接到壳体以调节壳体的长度。 活塞附接到杆并设置在压力室内。 将活塞浸入磁流变流体中，并将​​压力室分成上半部和下半部。 电磁体设置成与磁流变流体磁接触，并且可操作以将磁场施加到磁流变流体，以增加磁流变流体的粘度，以防止杆相对于壳体的移动。 在不存在来自磁源的磁场以允许调整长度的情况下，磁流变流体可自由地流过活塞的流体端口，在压力室的前半部和第二半部之间。

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