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    • 1. 发明授权
    • Hood lift mechanisms utilizing active materials and methods of use
    • 使用活性材料和使用方法的罩提升机构
    • US07556117B2
    • 2009-07-07
    • US11533417
    • 2006-09-20
    • Alan L. BrowneNancy L. JohnsonKenneth A. StromDiann BreiJonathan E. LuntzBrian M. Barnes
    • Alan L. BrowneNancy L. JohnsonKenneth A. StromDiann BreiJonathan E. LuntzBrian M. Barnes
    • B60R21/34B62D25/12
    • B60R21/38
    • Hood lift mechanisms for reversibly increasing the energy absorption capability at appropriate force levels of a vehicle closure includes a vehicle closure; an active material in operative communication with the vehicle closure, wherein the active material comprises a shape memory alloy, a ferromagnetic shape memory alloy, a shape memory polymer, a magnetorheological fluid, an electroactive polymer, a magnetorheological elastomer, an electrorheological fluid, a piezoelectric material, an ionic polymer metal composite, or combinations comprising at least one of the foregoing active materials; and an activation device in operative communication with the active material, wherein the activation device is operable to selectively apply an activation signal to the active material and effect a reversible change in a property of the active material, wherein the reversible change results in an increased clearance distance between the vehicle closure and an underlying component.
    • 用于在适当的车辆关闭力水平下可逆地增加能量吸收能力的罩升降机构包括车辆关闭件; 与车辆闭合件可操作地连通的活性材料,其中活性材料包括形状记忆合金,铁磁形状记忆合金,形状记忆聚合物,磁流变流体,电活性聚合物,磁流变弹性体,电粘滞性流体,压电 材料,离子聚合物金属复合材料或包含至少一种前述活性材料的组合; 以及与所述活性材料可操作地连通的激活装置,其中所述激活装置可操作以选择性地将活化信号施加到所述活性材料并且实现所述活性材料的性质的可逆变化,其中所述可逆变化导致增加的间隙 车辆关闭和底层部件之间的距离。
    • 8. 发明授权
    • Hood lift mechanisms utilizing active materials and methods of use
    • 使用活性材料和使用方法的罩提升机构
    • US08267216B2
    • 2012-09-18
    • US12896840
    • 2010-10-01
    • Alan L. BrowneNancy L. JohnsonDiann BreiNathan A. WilmotJohn Redmond
    • Alan L. BrowneNancy L. JohnsonDiann BreiNathan A. WilmotJohn Redmond
    • B60K28/10
    • B60R21/38
    • A cam lift and reset assembly includes a cam mounted on a rotatable shaft having a cam profile effective to provide a lifting force to a contacted part thereon upon rotation of the shaft and movement of the cam profile of the cam relative to the contacted part from a rest position to a lift position. The assembly also includes an active material in operative communication with the shaft, the active material being operative to change at least one property of the active material in response to an activation signal so as to effect rotation of the shaft. The assembly further includes a reset device in operative communication with the shaft to provide a reset force to the contacted part and counter-rotation of the shaft and movement of the cam profile of the cam relative to the contacted part from the lift position to the rest position.
    • 凸轮提升和复位组件包括安装在具有凸轮轮廓的可旋转轴上的凸轮,凸轮轮廓有效地在轴旋转时向其上的接触部件提供提升力,并且凸轮的凸轮轮廓相对于接触部件的运动从 休息位置到电梯位置。 组件还包括与轴可操作地连通的活性材料,所述活性材料可操作以响应于激活信号改变活性材料的至少一个性质,以便实现所述轴的旋转。 该组件进一步包括与该轴可操作地连通的复位装置,以向接触部件提供复位力并使轴的反向旋转和凸轮的凸轮轮廓相对于从被提升位置到其余部件的接触部分的运动 位置。