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公开(公告)号：US20180003260A1
公开(公告)日：2018-01-04
申请号：US15196625
申请日：2016-06-29
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Robert P. Marble , Gary Klein , Charles C. Weddle , Michael E. Mcguire
CPC classification number: F16F9/523 , F16F9/19 , F16F9/348 , F16F9/3485 , F16F9/52 , F16F2222/02 , F16F2224/0258 , F16F2228/066
Abstract: A damper assembly includes a housing that defines an interior chamber. A rod is supported by the housing, and is at least partially disposed within the interior chamber. A piston assembly is attached to the rod within the interior chamber. The piston assembly separates the interior chamber into at least a first fluid chamber and a second fluid chamber. The piston assembly includes an annular plate defining at least one orifice, which interconnects the first fluid chamber and the second fluid chamber in fluid communication. The piston assembly includes at least one valve disc that is disposed adjacent a first face of the annular plate. An SMA device is disposed in contact with the valve disc. The SMA device is changeable between a first state and a second state, at a transition temperature, to control a bending stiffness of the valve disc to adjust a damping rate.
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Patent Agency Ranking
公开(公告)号：US09777792B2
公开(公告)日：2017-10-03
申请号：US14960624
申请日：2015-12-07
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Michael E. McGuire , Gary Klein , Charles C. Weddle , Robert P. Marble
CPC classification number: F16F9/50 , B60G13/08 , B60G17/08 , B60G2202/24 , B60G2500/11 , F16F9/19 , F16F9/348 , F16K31/005 , F16K31/006
Abstract: A damper assembly includes a housing and rod supported by the housing. A piston assembly is attached to the rod, and is positioned to separate an interior chamber of the housing into a first fluid chamber and a second fluid chamber. The piston assembly includes an annular plate that defines at least one orifice. The orifice interconnects the first fluid chamber and the second fluid chamber in fluid communication. The damper assembly includes a piezoelectric device that is moveable between a disengaged position and an engaged position, in response to a control signal. When disposed in the disengaged position, the piezoelectric device does not affect fluid flow through the at least one orifice. When disposed in the engaged position, the piezoelectric device does affect fluid flow through the at least one orifice, to adjust a damping rate of the piston assembly.
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公开(公告)号：US09897159B2
公开(公告)日：2018-02-20
申请号：US15196625
申请日：2016-06-29
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Robert P. Marble , Gary Klein , Charles C. Weddle , Michael E. Mcguire
CPC classification number: F16F9/523 , F16F9/19 , F16F9/348 , F16F9/3485 , F16F9/52 , F16F2222/02 , F16F2224/0258 , F16F2228/066
Abstract: A damper assembly includes a housing that defines an interior chamber. A rod is supported by the housing, and is at least partially disposed within the interior chamber. A piston assembly is attached to the rod within the interior chamber. The piston assembly separates the interior chamber into at least a first fluid chamber and a second fluid chamber. The piston assembly includes an annular plate defining at least one orifice, which interconnects the first fluid chamber and the second fluid chamber in fluid communication. The piston assembly includes at least one valve disc that is disposed adjacent a first face of the annular plate. An SMA device is disposed in contact with the valve disc. The SMA device is changeable between a first state and a second state, at a transition temperature, to control a bending stiffness of the valve disc to adjust a damping rate.
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公开(公告)号：US09664248B2
公开(公告)日：2017-05-30
申请号：US14450916
申请日：2014-08-04
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Michael E. McGuire , Amy K. Luebke , Charles C. Weddle
CPC classification number: F16F15/002 , B62D5/0421 , F16F15/005
Abstract: Electric power steering systems and a method for controlling an electric power steering system are provided. The method, for example, includes, but is not limited to, determining, by a controller, a speed of a vehicle based upon data from a sensor, and adjusting, by the controller, a stiffness of an isolator in an electric power steering system via at least one piezoelectric device embedded in the isolator based upon the determined speed of the vehicle.
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公开(公告)号：US20170159742A1
公开(公告)日：2017-06-08
申请号：US14960624
申请日：2015-12-07
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Michael E. McGuire , Gary Klein , Charles C. Weddle , Robert P. Marble
CPC classification number: F16F9/50 , B60G13/08 , B60G17/08 , B60G2202/24 , B60G2500/11 , F16F9/19 , F16F9/348 , F16K31/005 , F16K31/006
Abstract: A damper assembly includes a housing and rod supported by the housing. A piston assembly is attached to the rod, and is positioned to separate an interior chamber of the housing into a first fluid chamber and a second fluid chamber. The piston assembly includes an annular plate that defines at least one orifice. The orifice interconnects the first fluid chamber and the second fluid chamber in fluid communication. The damper assembly includes a piezoelectric device that is moveable between a disengaged position and an engaged position, in response to a control signal. When disposed in the disengaged position, the piezoelectric device does not affect fluid flow through the at least one orifice. When disposed in the engaged position, the piezoelectric device does affect fluid flow through the at least one orifice, to adjust a damping rate of the piston assembly.
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公开(公告)号：US20150292589A1
公开(公告)日：2015-10-15
申请号：US14250974
申请日：2014-04-11
Applicant: GM Global Technology Operations LLC
Inventor： Michael E. McGuire , Amy K. Luebke , Charles C. Weddle
CPC classification number: F16F1/3615 , F16F1/02 , F16F7/00 , F16F15/002 , F16F15/02 , F16F15/06 , F16F15/08 , F16F2222/02 , F16F2224/025 , F16F2224/0258 , F16F2228/066 , F16F2238/02 , G10K11/162
Abstract: A number of variations may include a product including a variable rate vibration isolator that may include a shape memory material having at least two physical states, wherein each physical state may have a corresponding vibration isolation rate. The vibration isolator may be disposed within and assembly including at least a first part and a voltage source in electrical communication with the shape memory alloy. The product may further include a controller constructed and arranged to pass at least one predetermined current from the voltage source to the shape memory alloy such that the shape memory alloy enters a physical state that dampens vibration of the first part.
Abstract translation: 许多变型可以包括包括可变速率隔振器的产品，其可以包括具有至少两个物理状态的形状记忆材料，其中每个物理状态可以具有相应的隔振速率。 隔振器可以设置在包括至少第一部分和与形状记忆合金电连通的电压源的组件内。 该产品还可以包括构造和布置成将至少一个预定电流从电压源传递到形状记忆合金的控制器，使得形状记忆合金进入抑制第一部分振动的物理状态。
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