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    • 91. 发明授权
    • Airflow control devices using current
    • 气流控制装置使用电流
    • US07147269B2
    • 2006-12-12
    • US11436315
    • 2006-05-18
    • Jan H. AaseAlan L. BrowneNancy L. JohnsonJohn C. Ulicny
    • Jan H. AaseAlan L. BrowneNancy L. JohnsonJohn C. Ulicny
    • B60J1/00
    • B60K11/085B60H2001/00092B62D35/00B64C23/00B64C2027/7288F15D1/10Y02T10/88Y02T50/34
    • An airflow control device comprises a body and an active material in operative communication with the body. The active material, such as a shape memory material, is operative to change at least one attribute in response to an activation signal. The active material can change its shape, dimensions and/or stiffness producing a change in at least one feature of the airflow control device such as shape, dimension, location, orientation, and/or stiffness to control vehicle airflow to better suit changes in driving conditions such as the need for increased airflow through the radiator due to increases in engine coolant temperature. As such, the device improves vehicle fuel economy while maintaining proper engine cooling. An activation device, controller and sensors may be employed to further control the change in at least one feature of the airflow control device such as shape, dimension, location, orientation, and/or stiffness of the device. A method for controlling vehicle airflow selectively introduces an activation signal to initiate a change of at least one feature of the device that can be reversed upon discontinuation of the activation signal.
    • 气流控制装置包括与主体可操作地连通的主体和活动材料。 诸如形状记忆材料的活性材料可操作以响应于激活信号改变至少一个属性。 活性材料可以改变其形状,尺寸和/或刚度,从而产生气流控制装置的至少一个特征的变化,例如形状,尺寸,位置,取向和/或刚度,以控制车辆气流,以更好地适应驾驶中的变化 因为由于发动机冷却液温度升高,需要增加通过散热器的气流。 因此,该装置在保持适当的发动机冷却的同时提高了车辆燃料经济性。 可以使用激活装置,控制器和传感器来进一步控制气流控制装置的至少一个特征的变化,例如装置的形状,尺寸,位置,取向和/或刚度。 用于控制车辆气流的方法选择性地引入激活信号以启动在停止激活信号时可以反转的装置的至少一个特征的改变。
    • 95. 发明授权
    • Mechanical system with an active materials-based actuator
    • 机械系统与基于活性材料的执行机构
    • US08032238B2
    • 2011-10-04
    • US12130227
    • 2008-05-30
    • Nilesh D. MankameAlan L. BrownePaul W. AlexanderNancy L. JohnsonNorman K. Bucknor
    • Nilesh D. MankameAlan L. BrownePaul W. AlexanderNancy L. JohnsonNorman K. Bucknor
    • G06F19/00
    • G05B11/32
    • A mechanical system selectively imparts a prescribed motion to an output load using two or more actuators, including at least one having an active material element. The output load can be a locking member when the system is a vehicle transmission, a shuttle car of a linear system, or another device. A controller determines a total motive force required for imparting the prescribed motion, and selectively commands a combination of the actuators to provide the total motive force, apportioning the total motive force between the various actuators to optimize the performance of the system. An algorithm determines which combination of the actuators is the most suitable in moving the output load, and continuously modified this combination as needed as the output load is moved. The other actuator or actuators are then selectively energized as needed to provide the total motive force depending on this suitability determination.
    • 机械系统使用两个或更多个致动器选择性地向输出负载施加规定的运动,包括至少一个具有活性材料元件的致动器。 当系统是车辆传动装置时,输出负载可以是锁定构件,线性系统的穿梭车或另一装置。 控制器确定用于施加规定运动所需的总动力,并且选择性地命令致动器的组合以提供总动力,分配各种致动器之间的总动力,以优化系统的性能。 算法确定致动器的哪个组合最适合于移动输出负载,并且在输出负载移动时根据需要连续地修改该组合。 然后根据需要选择性地激励其他致动器或致动器,以根据这种适用性确定提供总动力。