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公开(公告)号：US09455435B2
公开(公告)日：2016-09-27
申请号：US14097562
申请日：2013-12-05
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Rod Niner , Robert J. Schwabel , Brian J. Ciesinski
CPC classification number: H01M2/34 , H01M2/305 , H01M10/425 , H01M2200/00 , H01M2220/20 , H01R11/22
Abstract: Apparatus are provided for receiving power from an external source. The apparatus includes a first electrical contact exposed to an exterior power source, a second electrical contact hardwired to an electrical bus, a separation device in physical contact with both the first electrical contact and the second electrical contact and conditionally insulating the first contact from the second contact and an electrical circuit configured to detect a voltage of the exterior power source and to physically modify the separation device to electrically connect the second contact to the exterior power source when a condition is met.
Abstract translation: 提供用于从外部源接收电力的装置。 该装置包括暴露于外部电源的第一电触点，与电总线硬连线的第二电触点，与第一电触头和第二电触点物理接触的分离装置，并且有条件地将第一触点与第二触点隔离 触点和电路，被配置为检测外部电源的电压并且物理地修改分离装置以在满足条件时将第二触点电连接到外部电源。
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公开(公告)号：US10800363B2
公开(公告)日：2020-10-13
申请号：US15707115
申请日：2017-09-18
Applicant: GM Global Technology Operations LLC
Inventor： Xinyu Du , Shengbing Jiang , Dongyi Zhou , David Gumpert , Atul Nagose , Rod Niner , Aaron D. Motyl
Abstract: A system includes control modules, a low-voltage communications bus, e.g., a CAN bus of a vehicle, a voltage sensor that measures a bus voltage and outputs 2.5-3.5 VDC high-data and 1.5-2.5 VDC low-data, and a host electronic control unit (ECU). The host ECU detects a recoverable fault using a data pattern in the bus voltage data when the data is outside of a calibrated range, and recalibrates the sensor. Recalibration may be by adjustment to a scaling factor and/or a bias value. Non-recoverable “stuck-at-fault”-type or “out-of-range”-type faults may be detected using the pattern, as may be a ground offset fault. A method includes measuring the bus voltage using the sensor, comparing the output data to a range to detect the fault, and isolating a sensor fault as a recoverable fault using the data pattern when the data is outside of the range. The sensor is then be recalibrated.
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Patent Agency Ranking
公开(公告)号：US08925083B2
公开(公告)日：2014-12-30
申请号：US13644554
申请日：2012-10-04
Applicant: GM Global Technology Operations LLC
Inventor： Rod Niner , Mark H. Costin
CPC classification number: H04L67/12 , B60R25/00 , H04L12/40 , H04L63/1416 , H04L63/1466 , H04L2012/40273
Abstract: Preventing spoofing in an automotive network includes monitoring, by electronic control unit, data packets on a bus in the automotive network. Upon determining, in response to the monitoring, that a data packet is from a source other than the electronic control unit, the preventing spoofing in the automotive network includes generating and transmitting a diagnostic message to at least one module in the automotive network over the bus, the diagnostic message instructing the at least one module to take no action on the data packet.
Abstract translation: 防止汽车网络中的欺骗包括通过电子控制单元监视汽车网络总线上的数据包。 在响应于监视确定数据分组来自除电子控制单元之外的源时，汽车网络中的防止欺骗包括通过总线产生和发送诊断消息到汽车网络中的至少一个模块 所述诊断消息指示所述至少一个模块不对所述数据分组采取任何动作。
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公开(公告)号：US09989575B2
公开(公告)日：2018-06-05
申请号：US14837641
申请日：2015-08-27
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Xinyu Du , Shengbing Jiang , Atul Nagose , David B. Gumpert , Aaron B. Bloom , Rod Niner
CPC classification number: G01R31/025 , G01R31/007 , H04L1/24
Abstract: A method is disclosed for detecting ground faults in a communications system. The method includes measuring a predetermined number of voltage points; determining if the measured voltage points represent recessive or dominant bits; identifying which of the predetermined number of voltage points represent inter-frame bits and which represent frame data bits based on whether the measured voltage points are recessive or dominant; calculating a maximum average voltage for the inter-frame bits; calculating an average frame voltage for all dominant bits within a frame; determining a high average dominant voltage count based on a number of frames for which the average frame voltage is greater than a high voltage threshold; and determining if a ground fault exists based on the average frame voltage and the high average dominant voltage count.
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公开(公告)号：US20130104231A1
公开(公告)日：2013-04-25
申请号：US13644554
申请日：2012-10-04
Applicant: GM Global Technology Operations LLC
Inventor： Rod Niner , Mark H. Costin
CPC classification number: H04L67/12 , B60R25/00 , H04L12/40 , H04L63/1416 , H04L63/1466 , H04L2012/40273
Abstract: Preventing spoofing in an automotive network includes monitoring, by electronic control unit, data packets on a bus in the automotive network. Upon determining, in response to the monitoring, that a data packet is from a source other than the electronic control unit, the preventing spoofing in the automotive network includes generating and transmitting a diagnostic message to at least one module in the automotive network over the bus, the diagnostic message instructing the at least one module to take no action on the data packet.
Abstract translation: 防止汽车网络中的欺骗包括通过电子控制单元监视汽车网络总线上的数据包。 在响应于监视确定数据分组来自除电子控制单元之外的源时，汽车网络中的防止欺骗包括通过总线产生和发送诊断消息到汽车网络中的至少一个模块 所述诊断消息指示所述至少一个模块不对所述数据分组采取任何动作。
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6.发明申请公开(公告)号：US20190084510A1
公开(公告)日：2019-03-21
申请号：US15707115
申请日：2017-09-18
Applicant: GM Global Technology Operations LLC
Inventor： Xinyu Du , Shengbing Jiang , Dongyi Zhou , David Gumpert , Atul Nagose , Rod Niner , Aaron D. Motyl
CPC classification number: B60R16/0315 , B60R21/01 , B60R2021/0104 , B60R2021/01156 , B60R2021/01163
Abstract: A system includes control modules, a low-voltage communications bus, e.g., a CAN bus of a vehicle, a voltage sensor that measures a bus voltage and outputs 2.5-3.5 VDC high-data and 1.5-2.5 VDC low-data, and a host electronic control unit (ECU). The host ECU detects a recoverable fault using a data pattern in the bus voltage data when the data is outside of a calibrated range, and recalibrates the sensor. Recalibration may be by adjustment to a scaling factor and/or a bias value. Non-recoverable “stuck-at-fault”-type or “out-of-range”-type faults may be detected using the pattern, as may be a ground offset fault. A method includes measuring the bus voltage using the sensor, comparing the output data to a range to detect the fault, and isolating a sensor fault as a recoverable fault using the data pattern when the data is outside of the range. The sensor is then be recalibrated.
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公开(公告)号：US20160320441A1
公开(公告)日：2016-11-03
申请号：US14837641
申请日：2015-08-27
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Xinyu Du , Shengbing Jiang , Atul Nagose , David B. Gumpert , Aaron B. Bloom , Rod Niner
CPC classification number: G01R31/025 , G01R31/007 , H04L1/24
Abstract: A method is disclosed for detecting ground faults in a communications system. The method includes measuring a predetermined number of voltage points; determining if the measured voltage points represent recessive or dominant bits; identifying which of the predetermined number of voltage points represent inter-frame bits and which represent frame data bits based on whether the measured voltage points are recessive or dominant; calculating a maximum average voltage for the inter-frame bits; calculating an average frame voltage for all dominant bits within a frame; determining a high average dominant voltage count based on a number of frames for which the average frame voltage is greater than a high voltage threshold; and determining if a ground fault exists based on the average frame voltage and the high average dominant voltage count.
Abstract translation: 公开了一种用于检测通信系统中的接地故障的方法。 该方法包括测量预定数量的电压点; 确定测量的电压点是否表示隐性或显性位; 识别预定数量的电压点中的哪一个代表帧间比特，并且基于所测量的电压点是否为隐性或占优势来表示帧数据比特; 计算帧间比特的最大平均电压; 计算帧内所有显性位的平均帧电压; 基于平均帧电压大于高电压阈值的帧数确定高平均主电压计数; 并且基于平均帧电压和高平均主电压计数来确定是否存在接地故障。
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