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公开(公告)号：US09454855B2
公开(公告)日：2016-09-27
申请号：US14498714
申请日：2014-09-26
发明人： Hyung-il Ahn , Matthew Denesuk , Axel Hochstein , Ying Tat Leung
IPC分类号： G07C5/00
CPC分类号： G07C5/006 , G06Q10/20 , G07C5/008 , G07C5/0808
摘要： Methods, systems, devices and computer program products for planning for failures of vehicular components are provided herein. A method includes obtaining a first set of data of maintenance events recorded for multiple vehicular components across multiple vehicles in a fleet; obtaining a second set of data of maintenance work orders performed on the vehicular components; obtaining a third set of data of measurements taken in connection with the vehicular components; analyzing (i) the first set of data and (ii) the second set of data to identify component failure events associated with the multiple vehicular components; determining failure indicators for each of the vehicular components in each of the vehicles in the fleet based on the second set of data, the third set of data, and the identified component failure events; and outputting the indicators in multiple visualized forms, each representing one of multiple levels of granularity.
摘要翻译： 本文提供了用于规划车辆部件故障的方法，系统，设备和计算机程序产品。 一种方法包括获得在车队中跨越多个车辆记录的用于多个车辆部件的维护事件的第一组数据; 获取在车辆部件上执行的维护工作命令的第二组数据; 获得与车辆部件相关的测量数据的第三组数据; 分析（i）第一组数据和（ii）第二组数据以识别与多个车辆部件相关联的部件故障事件; 基于所述第二组数据，所述第三组数据和所识别的组件故障事件来确定所述车队中的每个车辆中的每个车辆部件的故障指示符; 并以多个可视化形式输出指示符，每个表示多个粒度级别中的一个。
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公开(公告)号：US20160110933A1
公开(公告)日：2016-04-21
申请号：US14978438
申请日：2015-12-22
发明人： Hyung-il Ahn , Matthew Denesuk , Axel Hochstein , Ying Tat Leung
CPC分类号： G07C5/08 , G05B23/00 , G06N7/005 , G06N99/005 , G07C5/006 , G07C5/008 , G07C5/02 , G07C5/0808
摘要： Methods, systems, and computer program products for generating wear-based indicators are provided herein. A method includes assigning a failure label to each data point associated with a component associated with a failure-caused component replacement within a pre-specified number of runtime hours of the failure-caused component replacement; assigning a non-failure label to each data point associated with a failure-caused component replacement and not within the pre-specified number of runtime hours; assigning a non-failure label to each data point associated with a scheduled component replacement; assigning a non-failure label to each data point associated with an actively running instance of the component as yet to be replaced; estimating a failure probability for the component over a pre-specified future runtime; determining a cumulative hazard function for the component based on the failure probability; and generating a cumulative wear-based indicator for the component by executing a regression function based on the cumulative hazard function.
摘要翻译： 本文提供了用于生成磨损指标的方法，系统和计算机程序产品。 一种方法包括：在故障引起的组件更换的预定数量的运行时间内，将故障标签分配给与与故障引起的组件更换相关联的组件相关联的每个数据点; 将非故障标签分配给与故障引起的组件更换相关联的每个数据点，而不是在预先指定的运行时间内; 向与调度的组件替换相关联的每个数据点分配非故障标签; 将未故障标签分配给与尚未被替换的组件的主动运行实例相关联的每个数据点; 在预先指定的未来运行时间内估计组件的故障概率; 基于故障概率确定组件的累积危险函数; 以及通过基于所述累积危险函数执行回归函数来生成所述组件的累积磨损指示符。
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3.发明授权公开(公告)号：US09514577B2
公开(公告)日：2016-12-06
申请号：US14498693
申请日：2014-09-26
发明人： Hyung-il Ahn , Matthew Denesuk , Axel Hochstein , Ying Tat Leung
IPC分类号： G01R31/3187 , G07C5/00 , B60K35/00 , G07C5/08
CPC分类号： G07C5/006 , B60K35/00 , B60K2350/1092 , G07C5/0808 , Y02T10/84
摘要： Methods, systems, and computer program products for generating a vehicular component replacement policy are provided herein. A method includes, for each of multiple lifetime wear indicator functions associated with a vehicular component, wherein each lifetime wear indicator function comprises a transformed time scale plotting wear indicator values over a period of time, determining multiple corresponding candidate threshold values on the transformed time scale; calculating: a survival probability function for the vehicular component based on each transformed time scale, an average runtime of the vehicular component prior to failure, and an average runtime of the vehicular component prior to a scheduled replacement; calculating an economic criterion value for each given threshold value based on the above calculations and one or more economic parameters; generating the replacement policy to include (i) the lifetime wear indicator function that optimizes the economic criterion value and (ii) the corresponding threshold value.
摘要翻译： 本文提供了用于生成车辆部件更换策略的方法，系统和计算机程序产品。 一种方法包括对于与车辆部件相关联的多个寿命磨损指示器功能中的每一个，其中每个寿命磨损指示器功能包括在一段时间内绘制磨损指示符值的变换时间刻度，在变换的时间尺度上确定多个对应的候选阈值 ; 计算：基于每个变换时间尺度的车辆部件的生存概率函数，故障之前的车辆部件的平均运行时间以及在计划更换之前的车辆部件的平均运行时间; 基于上述计算和一个或多个经济参数计算每个给定阈值的经济标准值; 生成替代策略以包括（i）优化经济标准值的寿命磨损指示器功能和（ii）相应的阈值。
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公开(公告)号：US20160093119A1
公开(公告)日：2016-03-31
申请号：US14498714
申请日：2014-09-26
发明人： Hyung-il Ahn , Matthew Denesuk , Axel Hochstein , Ying Tat Leung
IPC分类号： G07C5/00
CPC分类号： G07C5/006 , G06Q10/20 , G07C5/008 , G07C5/0808
摘要： Methods, systems, devices and computer program products for planning for failures of vehicular components are provided herein. A method includes obtaining a first set of data of maintenance events recorded for multiple vehicular components across multiple vehicles in a fleet; obtaining a second set of data of maintenance work orders performed on the vehicular components; obtaining a third set of data of measurements taken in connection with the vehicular components; analyzing (i) the first set of data and (ii) the second set of data to identify component failure events associated with the multiple vehicular components; determining failure indicators for each of the vehicular components in each of the vehicles in the fleet based on the second set of data, the third set of data, and the identified component failure events; and outputting the indicators in multiple visualized forms, each representing one of multiple levels of granularity.
摘要翻译： 本文提供了用于规划车辆部件故障的方法，系统，设备和计算机程序产品。 一种方法包括获得在车队中跨越多个车辆记录的用于多个车辆部件的维护事件的第一组数据; 获取在车辆部件上执行的维护工作命令的第二组数据; 获得与车辆部件相关的测量数据的第三组数据; 分析（i）第一组数据和（ii）第二组数据以识别与多个车辆部件相关联的部件故障事件; 基于所述第二组数据，所述第三组数据和所识别的组件故障事件来确定所述车队中的每个车辆中的每个车辆部件的故障指示符; 并以多个可视化形式输出指示符，每个表示多个粒度级别中的一个。
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5.发明申请Generating Estimates of Failure Risk for a Vehicular Component in Situations of High-Dimensional and Low Sample Size Data 审中-公开在高维和低样本量数据的情况下，产生汽车部件故障风险的估计公开(公告)号：US20160093118A1
公开(公告)日：2016-03-31
申请号：US14498707
申请日：2014-09-26
发明人： Hyung-il Ahn , Matthew Denesuk , Axel Hochstein , Ying Tat Leung
CPC分类号： G07C5/006 , B60K35/00 , G07C5/0808
摘要： Methods, systems, and computer program products for generating estimates of failure risk for a vehicular component in situations of high-dimensional and low sample size data are provided herein. A method includes splitting a first input time series comprising multiple data points derived from a vehicular component across a fleet of multiple vehicles into multiple sub-time series; generating a first failure status predicting function of a first selected sub-time series; deleting, from the first input time series, the portion of the data points that corresponds to the first selected sub-time series; repeating the preceding two steps for a second selected sub-time series; generating a second failure status predicting function of each selected sub-time series; applying each second failure status predicting function to a second input time series to calculate prediction of failure values; and identifying the largest prediction of failure value as an estimate of failure risk for the vehicular component.
摘要翻译： 本文提供了用于在高维和低样本数据数据的情况下产生车辆部件的故障风险估计的方法，系统和计算机程序产品。 一种方法包括将包含多个车辆的车辆部件的多个数据点的第一输入时间序列分割成多个子时间序列; 产生第一选择子时间序列的第一故障状态预测功能; 从所述第一输入时间序列中删除与所述第一选择子时间序列相对应的所述数据点的部分; 重复前述两个步骤以进行第二次选择的子时间序列; 产生每个所选子时间序列的第二故障状态预测功能; 将每个第二故障状态预测功能应用于第二输入时间序列，以计算故障值的预测; 并确定故障值的最大预测值作为车辆部件故障风险的估计。
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公开(公告)号：US20160093117A1
公开(公告)日：2016-03-31
申请号：US14498703
申请日：2014-09-26
发明人： Hyung-il Ahn , Matthew Denesuk , Axel Hochstein , Ying Tat Leung
CPC分类号： G07C5/006 , B60K35/00 , G05B23/024 , G07C5/008 , G07C5/0808
摘要： Methods, systems, and computer program products for generating estimates of failure risk for a vehicular component are provided herein. A method includes splitting an input time series pertaining to a vehicular component across a fleet of multiple vehicles into multiple sub-time series, wherein each sub-time series comprises multiple data points of the input time series that correspond to measurements derived from the vehicular component; determining a weight applied to each of the sub-time series based on a pre-determined weight associated with the input time series; applying a failure or non-failure classification label to each of the sub-time series and the input time series; calculating a performance measure for the input time series; determining an updated weight associated with the input time series; and generating an estimate of failure risk for the vehicular component based on the classification label applied to each input time series and the updated weight.
摘要翻译： 本文提供了用于产生车辆部件故障风险估算值的方法，系统和计算机程序产品。 一种方法包括将跨越多个车辆的车辆组件的输入时间序列分成多个子时间序列，其中每个子时间序列包括与从车辆部件导出的测量值相对应的输入时间序列的多个数据点 ; 基于与输入时间序列相关联的预定权重，确定应用于每个子时间序列的权重; 对每个子时间序列和输入时间序列应用故障或非故障分类标签; 计算输入时间序列的性能度量; 确定与所述输入时间序列相关联的更新权重; 以及基于应用于每个输入时间序列和更新的权重的分类标签来生成车辆部件的故障风险的估计。
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公开(公告)号：US20160093115A1
公开(公告)日：2016-03-31
申请号：US14498686
申请日：2014-09-26
发明人： Hyung-il Ahn , Matthew Denesuk , Axel Hochstein , Ying Tat Leung
IPC分类号： G07C5/00
CPC分类号： G07C5/08 , G05B23/00 , G06N7/005 , G06N99/005 , G07C5/006 , G07C5/008 , G07C5/02 , G07C5/0808
摘要： Methods, systems, and computer program products for generating wear-based indicators for vehicular components are provided herein. A method includes assigning a failure class label to each data point, from multiple data points derived from measurements associated with a vehicular component across a fleet of vehicles, that is within a pre-specified number of runtime hours of a replacement; assigning a non-failure class label to each data point not within the pre-specified number of runtime hours of a replacement and each data point associated with a component yet to be replaced; estimating a failure probability at each data point over a pre-specified future runtime of the component based on the assigned class label; determining a cumulative hazard function for the vehicular component based on the failure probability; and generating a cumulative wear-based indicator for the vehicular component by executing a regression function at a given time based on the cumulative hazard function.
摘要翻译： 本文提供了用于生成车辆部件磨损指示器的方法，系统和计算机程序产品。 一种方法包括：将来自与车辆组件相关联的测量的多个数据点从多个数据点分配给每个数据点，所述多个数据点位于车辆的车队的预定数量的运行时间内; 将非故障类标签分配给不在替换的预定数量的运行时间内的每个数据点，以及与要替换的组件相关联的每个数据点; 基于所分配的类标签，在组件的预先指定的未来运行时间内估计每个数据点的故障概率; 基于故障概率确定车辆部件的累积危险功能; 以及通过基于所述累积危险函数在给定时间执行回归函数来生成用于所述车辆部件的累积磨损指示器。
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公开(公告)号：US09530256B2
公开(公告)日：2016-12-27
申请号：US14978438
申请日：2015-12-22
发明人： Hyung-il Ahn , Matthew Denesuk , Axel Hochstein , Ying Tat Leung
CPC分类号： G07C5/08 , G05B23/00 , G06N7/005 , G06N99/005 , G07C5/006 , G07C5/008 , G07C5/02 , G07C5/0808
摘要： Methods, systems, and computer program products for generating wear-based indicators are provided herein. A method includes assigning a failure label to each data point associated with a component associated with a failure-caused component replacement within a pre-specified number of runtime hours of the failure-caused component replacement; assigning a non-failure label to each data point associated with a failure-caused component replacement and not within the pre-specified number of runtime hours; assigning a non-failure label to each data point associated with a scheduled component replacement; assigning a non-failure label to each data point associated with an actively running instance of the component as yet to be replaced; estimating a failure probability for the component over a pre-specified future runtime; determining a cumulative hazard function for the component based on the failure probability; and generating a cumulative wear-based indicator for the component by executing a regression function based on the cumulative hazard function.
摘要翻译： 本文提供了用于生成磨损指标的方法，系统和计算机程序产品。 一种方法包括：在故障引起的组件更换的预定数量的运行时间内，将故障标签分配给与与故障引起的组件更换相关联的组件相关联的每个数据点; 将非故障标签分配给与故障引起的组件更换相关联的每个数据点，而不是在预先指定的运行时间内; 向与调度的组件替换相关联的每个数据点分配非故障标签; 将未故障标签分配给与尚未被替换的组件的主动运行实例相关联的每个数据点; 在预先指定的未来运行时间内估计组件的故障概率; 基于故障概率确定组件的累积危险函数; 以及通过基于所述累积危险函数执行回归函数来生成所述组件的累积磨损指示符。
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9.发明申请公开(公告)号：US20160093116A1
公开(公告)日：2016-03-31
申请号：US14498693
申请日：2014-09-26
发明人： Hyung-il Ahn , Matthew Denesuk , Axel Hochstein , Ying Tat Leung
CPC分类号： G07C5/006 , B60K35/00 , B60K2350/1092 , G07C5/0808 , Y02T10/84
摘要： Methods, systems, and computer program products for generating a vehicular component replacement policy are provided herein. A method includes, for each of multiple lifetime wear indicator functions associated with a vehicular component, wherein each lifetime wear indicator function comprises a transformed time scale plotting wear indicator values over a period of time, determining multiple corresponding candidate threshold values on the transformed time scale; calculating: a survival probability function for the vehicular component based on each transformed time scale, an average runtime of the vehicular component prior to failure, and an average runtime of the vehicular component prior to a scheduled replacement; calculating an economic criterion value for each given threshold value based on the above calculations and one or more economic parameters; generating the replacement policy to include (i) the lifetime wear indicator function that optimizes the economic criterion value and (ii) the corresponding threshold value.
摘要翻译： 本文提供了用于生成车辆部件更换策略的方法，系统和计算机程序产品。 一种方法包括对于与车辆部件相关联的多个寿命磨损指示器功能中的每一个，其中每个寿命磨损指示器功能包括在一段时间内绘制磨损指示符值的变换时间刻度，在变换的时间尺度上确定多个对应的候选阈值 ; 计算：基于每个变换时间尺度的车辆部件的生存概率函数，故障之前的车辆部件的平均运行时间以及在计划更换之前的车辆部件的平均运行时间; 基于上述计算和一个或多个经济参数计算每个给定阈值的经济标准值; 生成替代策略以包括（i）优化经济标准值的寿命磨损指示器功能和（ii）相应的阈值。
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公开(公告)号：US09286735B1
公开(公告)日：2016-03-15
申请号：US14498686
申请日：2014-09-26
发明人： Hyung-il Ahn , Matthew Denesuk , Axel Hochstein , Ying Tat Leung
CPC分类号： G07C5/08 , G05B23/00 , G06N7/005 , G06N99/005 , G07C5/006 , G07C5/008 , G07C5/02 , G07C5/0808
摘要： Methods, systems, and computer program products for generating wear-based indicators for vehicular components are provided herein. A method includes assigning a failure class label to each data point, from multiple data points derived from measurements associated with a vehicular component across a fleet of vehicles, that is within a pre-specified number of runtime hours of a replacement; assigning a non-failure class label to each data point not within the pre-specified number of runtime hours of a replacement and each data point associated with a component yet to be replaced; estimating a failure probability at each data point over a pre-specified future runtime of the component based on the assigned class label; determining a cumulative hazard function for the vehicular component based on the failure probability; and generating a cumulative wear-based indicator for the vehicular component by executing a regression function at a given time based on the cumulative hazard function.
摘要翻译： 本文提供了用于生成车辆部件磨损指示器的方法，系统和计算机程序产品。 一种方法包括：将来自与车辆组件相关联的测量的多个数据点从多个数据点分配给每个数据点，所述多个数据点在车辆的车队之内，其在替换的预定数量的运行时间内; 将非故障类标签分配给不在替换的预定数量的运行时间内的每个数据点，以及与要替换的组件相关联的每个数据点; 基于所分配的类标签，在组件的预先指定的未来运行时间内估计每个数据点的故障概率; 基于故障概率确定车辆部件的累积危险功能; 以及通过基于所述累积危险函数在给定时间执行回归函数来生成用于所述车辆部件的累积磨损指示器。
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