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公开(公告)号：US08308441B2
公开(公告)日：2012-11-13
申请号：US12261568
申请日：2008-10-30
申请人： Marv M. Hamdan , David J. Pfefferl
发明人： Marv M. Hamdan , David J. Pfefferl
CPC分类号： F04B49/06 , F04C18/16 , F04C28/06 , F04C28/08 , F04C2240/81 , G05B11/42 , H02P6/06 , H02P6/28
摘要： When controlling an air compressor (13) for a pneumatic braking system on a large hybrid commercial vehicle (e.g., a bus, a package delivery truck, etc.), PID control of an air compressor motor (12) is employed during normal system operation such as when the motor shaft is spinning, and state machine control is employed during startup or upon a system disturbance such as a shaft seizure or stall. In this manner, stalling events that occurs due to PID control inability to correct for unexpected disturbances are mitigated by employing state machine control.
摘要翻译： 在大型混合动力商用车辆（例如，公共汽车，包装运输车辆等）上控制用于气动制动系统的空气压缩机（13）时，在正常系统运行期间采用空气压缩机马达（12）的PID控制 例如当电动机轴旋转时，以及在启动期间或在诸如轴发生或失速的系统干扰时使用状态机控制。 以这种方式，通过采用状态机控制来减轻因PID控制无法纠正意外故障而发生的失速事件。
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公开(公告)号：US06862504B2
公开(公告)日：2005-03-01
申请号：US10238543
申请日：2002-09-10
CPC分类号： G01R31/007
摘要： A system and method for detecting alternator condition is provided. Information is taken from the vehicle powerline and the communication links, and processed by the vehicle ECU, such as the vehicle antilocking brake system ECU, to obtain data. The battery voltage ripple amplitude is then calculated and compared at different engine speeds. If the difference in the ripple amplitude at the different engine speeds is greater than a predetermined threshold value, a signal is sent indicating that the alternator has failed.
摘要翻译： 提供了一种用于检测交流发电机状况的系统和方法。 信息从车辆电力线和通信链路获取，并由诸如车辆防抱死制动系统ECU的车辆ECU进行处理以获得数据。 然后计算电池电压纹波幅度，并在不同的发动机转速下进行比较。 如果不同发动机转速下的纹波幅度差大于预定阈值，则发送指示交流发电机故障的信号。
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