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    • 14. 发明申请
    • Torque monitoring system and method of monitoring engine torque
    • 扭矩监测系统及发动机转矩监测方法
    • US20070125184A1
    • 2007-06-07
    • US11293862
    • 2005-12-02
    • Joel MaguireJohn Maten
    • Joel MaguireJohn Maten
    • G01L3/14
    • G01L3/1485
    • An easily packaged torque monitoring system accurately captures driveline torque data for use by engine, transmission or other vehicle controllers. The torque monitoring system utilizes a structural member to hydraulically connect a driving member with a driven member. A pressure-sensing device is operatively connected with a fluid chamber in the structural member through which the driving member drives the driven member. The pressure-sensing device senses a pressure level within the chamber. The amount of torque transmitted from the driving member to the driven member is directly linearly related to the sensed pressure. In one embodiment, the pressure-sensing device is a surface acoustic wave sensor in contact with the hydraulic fluid that wirelessly relays a sensor signal (i.e., a signal with a value corresponding with sensed pressure and thus with torque) to a controller.
    • 易于封装的扭矩监测系统可以准确地捕获发动机,变速箱或其他车辆控制器使用的传动系统扭矩数据。 扭矩监控系统利用结构构件将驱动构件与从动构件液压连接。 压力感测装置与结构构件中的流体室可操作地连接,驱动构件通过该腔体驱动从动构件。 压力感测装置感测室内的压力水平。 从驱动构件传递到从动构件的扭矩的量与所感测的压力直接相关。 在一个实施例中,压力感测装置是与液压流体接触的表面声波传感器,其将传感器信号(即,具有与感测压力相对应的值,因此具有扭矩的信号)无线地中继到控制器。