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公开(公告)号：US20110304339A1
公开(公告)日：2011-12-15
申请号：US12893164
申请日：2010-09-29
申请人： Ryan W. Schumacher , Perry K. White
发明人： Ryan W. Schumacher , Perry K. White
IPC分类号： G01R31/14
CPC分类号： G01R31/025 , G01R31/007
摘要： A bus terminal is isolated from ground potential during normal operation of the vehicle. A first current is applied to the bus terminal. A current level detector is arranged to detect a first level of the first current, or a corresponding observed voltage level, that exists or flows from the bus terminal to ground. A compensator is configured to compensate for a range in the detected first level by applying a corresponding compensating voltage level to a first resistor coupled to the current level detector. An electronic data processor is capable of estimating a first isolation level between the bus terminal and ground based on the detected first level.
摘要翻译： 在车辆的正常操作期间，总线端子与地电位隔离。 第一电流被施加到总线终端。 电流电平检测器被布置成检测存在或从总线端子到地流动的第一电流的第一电平或相应的观察到的电压电平。 补偿器被配置为通过将相应的补偿电压电平施加到耦合到当前电平检测器的第一电阻器来补偿检测到的第一电平的范围。 电子数据处理器能够基于检测到的第一电平来估计总线端子与地之间的第一隔离电平。
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公开(公告)号：US08618809B2
公开(公告)日：2013-12-31
申请号：US12893164
申请日：2010-09-29
申请人： Ryan W. Schumacher , Perry K. White
发明人： Ryan W. Schumacher , Perry K. White
IPC分类号： G01R31/14
CPC分类号： G01R31/025 , G01R31/007
摘要： A bus terminal is isolated from ground potential during normal operation of the vehicle. A first current is applied to the bus terminal. A current level detector is arranged to detect a first level of the first current, or a corresponding observed voltage level, that exists or flows from the bus terminal to ground. A compensator is configured to compensate for a range in the detected first level by applying a corresponding compensating voltage level to a first resistor coupled to the current level detector. An electronic data processor is capable of estimating a first isolation level between the bus terminal and ground based on the detected first level.
摘要翻译： 在车辆的正常操作期间，总线端子与地电位隔离。 第一电流被施加到总线终端。 电流电平检测器被布置成检测存在或从总线端子到地流动的第一电流的第一电平或相应的观察到的电压电平。 补偿器被配置为通过将相应的补偿电压电平施加到耦合到当前电平检测器的第一电阻器来补偿检测到的第一电平的范围。 电子数据处理器能够基于检测到的第一电平来估计总线端子与地之间的第一隔离电平。
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公开(公告)号：US20110307196A1
公开(公告)日：2011-12-15
申请号：US12949916
申请日：2010-11-19
申请人： Ryan W. Schumacher
发明人： Ryan W. Schumacher
CPC分类号： G01R31/025 , G01R31/007
摘要： A first amplifier is arranged to receive a first signal from a first bus terminal. A second amplifier is configured to receive a second signal from a second bus terminal. An inverter input of an inverter is coupled to the output of the first amplifier. An input or inputs of an analog-to-digital converter are coupled to an inverter output of the inverter and the output of the second amplifier. The analog-to-digital converter is capable of producing a digital signal representative of the signals received from the first bus terminal and the second bus terminal. A data processor is capable of receiving an output of the analog-to-digital converter. The data processor is configured to apply one or more frequency domain transforms to the digital signal. The data processor identifies a circuit location of the ground fault or degraded isolation, a type of ground fault, or both based on the application of the frequency domain transform.
摘要翻译： 第一放大器布置成从第一总线端子接收第一信号。 第二放大器被配置为从第二总线端子接收第二信号。 反相器的反相器输入耦合到第一放大器的输出端。 模数转换器的输入或输入耦合到反相器的反相器输出端和第二放大器的输出端。 模数转换器能够产生代表从第一总线端子和第二总线端子接收的信号的数字信号。 数据处理器能够接收模数转换器的输出。 数据处理器被配置为将一个或多个频域变换应用于数字信号。 数据处理器基于频域变换的应用，识别接地故障或劣化隔离的电路位置，接地故障类型或二者。
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公开(公告)号：US08554500B2
公开(公告)日：2013-10-08
申请号：US12949916
申请日：2010-11-19
申请人： Ryan W. Schumacher
发明人： Ryan W. Schumacher
CPC分类号： G01R31/025 , G01R31/007
摘要： A first amplifier is arranged to receive a first signal from a first bus terminal. A second amplifier is configured to receive a second signal from a second bus terminal. An inverter input of an inverter is coupled to the output of the first amplifier. An input or inputs of an analog-to-digital converter are coupled to an inverter output of the inverter and the output of the second amplifier. The analog-to-digital converter is capable of producing a digital signal representative of the signals received from the first bus terminal and the second bus terminal. A data processor is capable of receiving an output of the analog-to-digital converter. The data processor is configured to apply one or more frequency domain transforms to the digital signal. The data processor identifies a circuit location of the ground fault or degraded isolation, a type of ground fault, or both based on the application of the frequency domain transform.
摘要翻译： 第一放大器布置成从第一总线端子接收第一信号。 第二放大器被配置为从第二总线端子接收第二信号。 反相器的反相器输入耦合到第一放大器的输出端。 模数转换器的输入或输入耦合到反相器的反相器输出端和第二放大器的输出端。 模数转换器能够产生代表从第一总线端子和第二总线端子接收的信号的数字信号。 数据处理器能够接收模数转换器的输出。 数据处理器被配置为将一个或多个频域变换应用于数字信号。 数据处理器基于频域变换的应用，识别接地故障或劣化隔离的电路位置，接地故障类型或二者。
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