Large truck remote wheel trouble warning system
    2.
    发明授权
    Large truck remote wheel trouble warning system 失效
    大卡车遥控车轮故障预警系统

    公开(公告)号:US4943798A

    公开(公告)日:1990-07-24

    申请号:US398776

    申请日:1989-08-26

    Applicant: Wayman Wayne

    Inventor: Wayman Wayne

    CPC classification number: G10K11/004 B60C23/0469

    Abstract: A safety system for large and long over-the-road vehicles, such as a tractor semitrailer rig, having wheels mounted remotely from the vehicle's cab. A conventional airborne sound receiving microphone is mounted within a mechanical vibration damping housing at the bottom of the vehicle body near and aimed at the remote wheels to receive sounds from that area of the vehicle. The mounting and housing are constructed to prevent or greatly lessen mechanical vibration and sounds from reaching the microphone through the vehicle body. A communication cable runs from the microphone and housing to the cab and is connected through an amplifier to a speaker provided inside the cab. While the vehicle is being driven, the speaker reproduces a significant portion of the airborne sound received by the microphone within the cab. The system produces as background noise in the cab the sounds from the rear wheel area of the vehicle and allows the driver to note and react to changes in such noise as may result from a flat tire or other problem.

    Abstract translation: 用于大型和长途超车辆的安全系统,例如拖拉机半挂车,具有从车辆驾驶室远程安装的车轮。 传统的机载的声音接收麦克风安装在车体底部附近并瞄准遥控轮的机械振动阻尼壳体内,以接收来自车辆区域的声音。 安装和外壳被构造成防止或大大减轻机械振动和声音通过车身到达麦克风。 通信电缆从麦克风和外壳延伸到驾驶室,并通过放大器连接到设置在驾驶室内的扬声器。 当车辆被驱动时,扬声器再现由驾驶室内的麦克风接收到的大部分空中声音。 该系统在驾驶室中产生作为车辆后轮区域的声音的背景噪音,并且允许驾驶员注意并对由于轮胎或其他问题造成的噪音变化作出反应。

    Method and apparatus for monitoring tire pressure
    3.
    发明授权
    Method and apparatus for monitoring tire pressure 失效
    用于监测轮胎压力的方法和装置

    公开(公告)号:US4186377A

    公开(公告)日:1980-01-29

    申请号:US858842

    申请日:1977-12-08

    CPC classification number: B60C23/0408 B60C23/0469

    Abstract: A method and apparatus are provided for monitoring tire pressure for motor vehicles, or the like, in which coded sound signals emitted from a wheel-mounted sound signal generator are detected and processed. The coded signal from the generator serves to distinguish the sound signal from background noise. The output of the generator is comprised of at least two coherent frequencies that beat acoustically with one another to produce an amplitude modulated sound signal that is then detected by a transducer which converts the sound signals into the electrical signals. The electrical signals are then fed through the processing circuitry including a detector which extracts the modulation envelope and applies it to an audio band-pass filter. The filter accepts the envelope within a predetermined frequency range, eliminating all signals which are not within the designed band pass. A second detector converts the audio signal to a DC level and feeds it to a threshold comparator. The level of the DC signal is directly proportional to the percentage of modulation of the originally received signal. If this level exceeds the threshold value of the comparator, the output actuates a bistable device, which, in turn, actuates a warning indicator.The rate of loss of tire pressure may also be determined by means of a signal generator adapted to emit at least two time-spaced sound signals at different pressures. The two signals are detected and processing circuitry calculates the time and/or pressure remaining before the vehicle becomes immobile. This information is displayed to the operator.

    Abstract translation: 提供了一种用于监测从车载声音信号发生器发出的编码声音信号被检测和处理的机动车辆等的轮胎压力的方法和装置。 来自发生器的编码信号用于区分声音信号和背景噪声。 发生器的输出由至少两个相干频率组成,这些相干频率彼此声音地产生振幅调制的声音信号,然后由将声音信号转换成电信号的换能器检测。 然后,电信号通过处理电路馈送,该处理电路包括提取调制包络并将其施加到音频带通滤波器的检测器。 滤波器在预定频率范围内接受包络,消除不在设计频带内的所有信号。 第二个检测器将音频信号转换为直流电平并将其馈送到阈值比较器。 DC信号的电平与原始接收信号的调制百分比成正比。 如果该电平超过了比较器的阈值,则输出致动一个双稳态器件,这又启动了一个警告指示器。 轮胎压力损失率也可以通过适于在不同压力下发射至少两个间隔时间的声音信号的信号发生器来确定。 检测到两个信号,并且处理电路计算在车辆变得不动之前剩余的时间和/或压力。 该信息显示给操作员。

    Over inflation and under inflation indicator for tires
    4.
    发明授权
    Over inflation and under inflation indicator for tires 失效
    超过通货膨胀和轮胎通货膨胀指标

    公开(公告)号:US4066033A

    公开(公告)日:1978-01-03

    申请号:US688711

    申请日:1976-05-21

    CPC classification number: B60C23/0496 B60C23/0469 Y10T137/3662

    Abstract: A device for indicating when the air within a tire is above or below an optimum pressure range, comprising a housing having a bore therein in which a piston is movable. The piston is spring biased toward one end of the bore and is normally held in a medial sealing position by air pressure from within the tire. In such sealing position, a sealing ring on the piston engages a sealing section of the bore to prevent movement of air along the bore; when the air pressure exceeds or falls below the optimum range, the sealing ring moves over a relieved portion of the bore and allows air to move along the latter to actuate a whistle carried by the piston. An electronic device senses the whistle and signals the operator.

    Abstract translation: 一种用于指示轮胎内的空气何时高于或低于最佳压力范围的装置,包括其中具有活塞可移动的孔的壳体。 活塞被弹簧偏压到孔的一端,并且通常由轮胎内的空气压力保持在中间密封位置。 在这种密封位置,活塞上的密封环与孔的密封部分接合,以防止空气沿着孔移动; 当空气压力超过或低于最佳范围时,密封环在孔的缓冲部分上移动,并允许空气沿着该空气移动以致动由活塞承载的口哨。 电子设备感知哨子并向操作人员发出信号。

    Electro-acoustic sensors
    5.
    发明授权

    公开(公告)号:US09764606B2

    公开(公告)日:2017-09-19

    申请号:US15457109

    申请日:2017-03-13

    Applicant: UltraPower LLC

    Abstract: Ultrasonic transmitting elements in an electroacoustical transceiver transmit acoustic energy to an electroacoustical transponder, which includes ultrasonic receiving elements to convert the acoustic energy into electrical power for the purposes of powering one or more sensors that are electrically coupled to the electroacoustical transponder. The electroacoustical transponder transmits data collected by the sensor(s) back to the electroacoustical transceiver wirelessly, such as through impedance modulation or electromagnetic waves. A feedback control loop can be used to adjust system parameters so that the electroacoustical transponder operates at an impedance minimum. An implementation of the system can be used to collect data in a vehicle, such as the tire air pressure.

    Acoustical tire pressure valve
    7.
    发明授权
    Acoustical tire pressure valve 失效
    声学轮胎压力阀

    公开(公告)号:US4103282A

    公开(公告)日:1978-07-25

    申请号:US627959

    申请日:1975-11-03

    Applicant: Edward J. Cook

    Inventor: Edward J. Cook

    CPC classification number: B60C23/0403 B60C23/0469 B60C29/068

    Abstract: A pressure-responsive signalling valve for use on pneumatic tires is adapted to generate a highly efficient acoustical signal whenever the pressure within the tire falls outside of a predetermined range. The emitted signal is detected by means of an acoustical receiver which, in turn, is coupled to an alarm typically in the form of a warning light or audio device conveniently located within the vehicle to alert the driver. The acoustical valve employs a rolling or flat seal disc diaphragm and a flat sealing arrangement providing a positive sealing action, minimal friction, low hysteresis and extremely precise pressure response characteristics.

    Electro-Acoustic Sensors
    9.
    发明申请

    公开(公告)号:US20170182852A1

    公开(公告)日:2017-06-29

    申请号:US15457109

    申请日:2017-03-13

    Applicant: UltraPower LLC

    Abstract: Ultrasonic transmitting elements in an electroacoustical transceiver transmit acoustic energy to an electroacoustical transponder, which includes ultrasonic receiving elements to convert the acoustic energy into electrical power for the purposes of powering one or more sensors that are electrically coupled to the electroacoustical transponder. The electroacoustical transponder transmits data collected by the sensor(s) back to the electroacoustical transceiver wirelessly, such as through impedance modulation or electromagnetic waves. A feedback control loop can be used to adjust system parameters so that the electroacoustical transponder operates at an impedance minimum. An implementation of the system can be used to collect data in a vehicle, such as the tire air pressure.

    REAL-TIME WIRELESS DYNAMIC TIRE PRESSURE SENSOR AND ENERGY HARVESTING SYSTEM
    10.
    发明申请
    REAL-TIME WIRELESS DYNAMIC TIRE PRESSURE SENSOR AND ENERGY HARVESTING SYSTEM 审中-公开
    实时无线动态轮胎压力传感器和能量采集系统

    公开(公告)号:US20160272019A1

    公开(公告)日:2016-09-22

    申请号:US15070689

    申请日:2016-03-15

    Abstract: An instantaneous/real-time wireless dynamic tire pressure sensor (DTPS) for characterizing pavement qualities and for detecting surface and subsurface pavement defects under normal driving conditions. Signal processing provides quantitative assessment of surface conditions. DTPS includes a vehicle tire valve stem-mounted pressure sensor and wheel hub-mounted signal conditioning, amplification, and transmitting circuitry. A signal processing computer within the vehicle is wirelessly coupled to the hub-mounted circuitry. Tire pressure changes caused by ground vibration excitation from the interaction between the tire and pavement at normal driving speeds are detected. When acoustic radiation from a surface wave is significantly stronger than acoustic noise, subsurface information can be extracted. An energy harvester based on strong magnetostatic coupling between a high permeability core solenoid, fixed proximate a vehicle wheel, and a bias magnet array, fixedly mounted in conjunction with a dust shield, can provide power the DIPS.

    Abstract translation: 用于表征路面质量的瞬时/实时无线动态轮胎压力传感器(DTPS),并用于在正常驾驶条件下检测表面和地下路面缺陷。 信号处理提供了表面条件的定量评估。 DTPS包括车辆轮胎气门杆安装压力传感器和轮毂安装的信号调理,放大和发射电路。 车辆内的信号处理计算机无线地耦合到轮毂安装的电路。 检测由正常行驶速度下的轮胎与路面之间的相互作用引起的地面振动引起的轮胎压力变化。 当来自表面波的声辐射明显强于声学噪声时,可以提取地下信息。 基于与防尘罩结合固定地安装的高磁导率磁芯螺线管(靠近车轮固定)和偏置磁体阵列之间的强静磁耦合的能量收集器可以为DIPS提供动力。

Patent Agency Ranking