公开(公告)号：US20110238259A1

公开(公告)日：2011-09-29

申请号：US12731395

申请日：2010-03-25

申请人： Fan Bai ,  Yilu Zhang

发明人： Fan Bai ,  Yilu Zhang

IPC分类号： G06F19/00

CPC分类号： H04L67/125 ,  H04W24/00 ,  H04W84/18

摘要： A method is provided for processing and analyzing diagnostic and prognostic data in a vehicle ad-hoc network. Diagnostic and prognostic data is exchanged between a host vehicle and remote vehicles in the vehicle ad-hoc network. The received diagnostic and prognostic data is stored in a memory of the host vehicle. Redundancy is eliminated in the received diagnostic and prognostic data. The diagnostic and prognostic data is assigned to clusters. Anomalies are detected in the stored data utilizing clustering techniques that determine whether a cluster of diagnostic and prognostic data formed from the host vehicle substantially deviates from the clusters of diagnostic and prognostic data formed from the remote vehicles. A driver of a vehicle is notified if the cluster data from a host vehicle deviates significantly from the clusters from the remote vehicles.

摘要翻译： 提供了一种用于处理和分析车辆自组织网络中的诊断和预测数据的方法。 在车辆自组织网络中的主车辆和远程车辆之间交换诊断和预测数据。 所接收的诊断和预测数据被存储在主车辆的存储器中。 在接收的诊断和预后数据中消除了冗余。 将诊断和预后数据分配给集群。 使用聚类技术在存储数据中检测到异常，其确定从主车辆形成的诊断和预测数据的集群是否基本上偏离由远程车辆形成的诊断和预测数据的集群。 如果来自主车辆的集群数据与来自远程车辆的集群的显着偏离，则通知车辆的驾驶员。

公开(公告)号：US08612079B2

公开(公告)日：2013-12-17

申请号：US13325132

申请日：2011-12-14

申请人： Xidong Tang ,  Mutasim A. Salman ,  Yilu Zhang

发明人： Xidong Tang ,  Mutasim A. Salman ,  Yilu Zhang

IPC分类号： B60L9/00

CPC分类号： G05B23/0294 ,  B60W20/50 ,  H01M10/48 ,  Y02T10/7258

摘要： A method for optimizing performance of a system includes determining, via a controller, a state of health (SOH) for each of a plurality of components of the system, and determining a state of function (SOF) of the system using the SOH of each component. The method includes estimating the remaining useful life (RUL) of the system using the system SOF, selecting a cost-optimal control strategy for the system using a costing model, and dynamically, i.e., in real time, executing the selected strategy to extend the estimated RUL. The method may include comparing the selected cost-optimal strategy to a calibrated performance threshold, and executing the selected strategy only when the selected strategy exceeds the threshold. A system includes first and second components and a controller. The controller dynamically executes the above method with respect to the components, which may be a traction motor and battery in one possible embodiment.

摘要翻译： 一种用于优化系统性能的方法包括：经由控制器确定系统的多个组件中的每一个的健康状态（SOH），以及使用每个系统的SOH来确定系统的功能状态（SOF） 零件。 该方法包括使用系统SOF估计系统的剩余使用寿命（RUL），使用成本核算模型选择用于系统的成本最优控制策略，并且动态地（即实时地）执行所选择的策略以扩展 估计RUL 该方法可以包括将所选择的成本最优策略与校准的性能阈值进行比较，并且仅在所选择的策略超过阈值时执行所选择的策略。 系统包括第一和第二组件和控制器。 在一个可能的实施例中，控制器相对于组件动态执行上述方法，其可以是牵引电动机和电池。

公开(公告)号：US20120319722A1

公开(公告)日：2012-12-20

申请号：US13161939

申请日：2011-06-16

申请人： Yilu Zhang ,  Siwei Cheng ,  Mutasim A. Salman

发明人： Yilu Zhang ,  Siwei Cheng ,  Mutasim A. Salman

IPC分类号： G01R31/34

CPC分类号： G01R31/343 ,  G01R31/346

摘要： A method for detecting whether the stator in a vehicle alternator has a turn-to-turn short circuit. The method includes determining an output current or voltage signal of the alternator, where the output current or voltage signal includes a ripple current frequency as a result of an AC-to-DC conversion. The method determines the speed of the alternator and a current output of the alternator. The method then determines the ripple current frequency of the alternator from the alternator speed, and determines a winding frequency from the ripple current frequency. The method performs an FFT analysis on the voltage and current signal, determines an amplitude of the winding frequency and compares the amplitude of the winding frequency to a predetermined amplitude, where if the difference exceeds a predetermined threshold, a turn-to-turn short circuit is likely occurring.

摘要翻译： 一种用于检测车辆交流发电机中的定子是否具有匝间短路的方法。 该方法包括确定交流发电机的输出电流或电压信号，其中输出电流或电压信号包括作为AC到DC转换的结果的纹波电流频率。 该方法确定交流发电机的速度和交流发电机的电流输出。 然后，该方法从交流发电机速度确定交流发电机的纹波电流频率，并从纹波电流频率确定绕组频率。 该方法对电压和电流信号进行FFT分析，确定绕组频率的幅度，并将绕组频率的振幅与预定幅度进行比较，其中如果差超过预定阈值，则匝间短路 很可能发生。

公开(公告)号：US20120200298A1

公开(公告)日：2012-08-09

申请号：US13023748

申请日：2011-02-09

申请人： Yilu Zhang ,  Niannian Tong ,  Mutasim A. Salman ,  Kevin R. Bainbridge ,  David W. Walters

发明人： Yilu Zhang ,  Niannian Tong ,  Mutasim A. Salman ,  Kevin R. Bainbridge ,  David W. Walters

IPC分类号： G01N27/416

CPC分类号： H01M10/488 ,  G01R31/367 ,  G01R31/3835 ,  H01M10/44 ,  H01M10/48 ,  H01M10/486 ,  H01M2220/20

摘要： A method is provided for determining a state-of-charge of a battery for a vehicle. The vehicle is in a charging state when the engine is operating and a non-charging state when the engine is not operating. A first battery voltage is measured at a first predetermined time period after battery charging is discontinued in the non-charging state. A first temperature of the battery is measured that coincides with the first battery voltage. A second battery voltage is measured at a second predetermined time. The second predetermined time is greater than the first predetermined time. A second temperature of the battery is measured that coincides with the second battery voltage. An average temperature is calculated based on the first temperature measurement and the second temperature measurement. A fixed time constant is determined based on the average temperature. An open circuit voltage is estimated as a function of the first voltage measurement, the second voltage measurement, and the fixed time constant. A state-of-charge of the battery is determined based on the estimated open circuit voltage.

摘要翻译： 提供了一种用于确定用于车辆的电池的充电状态的方法。 当发动机运转时车辆处于充电状态，发动机不工作时处于非充电状态。 在非充电状态下中断电池充电之后，在第一预定时间段测量第一电池电压。 测量与第一电池电压一致的电池的第一温度。 在第二预定时间测量第二电池电压。 第二预定时间大于第一预定时间。 测量与第二电池电压一致的电池的第二温度。 基于第一温度测量和第二温度测量计算平均温度。 基于平均温度确定固定时间常数。 根据第一电压测量值，第二电压测量值和固定时间常数来估计开路电压。 基于估计的开路电压来确定电池的充电状态。

公开(公告)号：US20120116630A1

公开(公告)日：2012-05-10

申请号：US12943261

申请日：2010-11-10

申请人： Mark N. Howell ,  Mutasim A. Salman ,  Xidong Tang ,  Yilu Zhang ,  Soumen De ,  Sugato Chakrabarty ,  Rahul Chougule ,  Pulak Bandyopadhyay ,  Steven W. Holland

发明人： Mark N. Howell ,  Mutasim A. Salman ,  Xidong Tang ,  Yilu Zhang ,  Soumen De ,  Sugato Chakrabarty ,  Rahul Chougule ,  Pulak Bandyopadhyay ,  Steven W. Holland

IPC分类号： G06F19/00

CPC分类号： G06Q10/0639

摘要： A method is provided for enhancing service diagnostics utilizing service repair data of previously serviced vehicles. Service repair data of previously serviced vehicles is obtained from a memory storage device. The service data is compiled into a service diagnostic code dataset and a service labor code dataset. The service diagnostic code dataset and service labor code dataset are categorized into an electronic data table. Respective combinations are formed in the electronic data table. An aggregate count is determined for each respective combination in the electronic data table. Either of a respective diagnostic code or a respective service labor code is identified having a correlation with more than one of either service diagnostic codes or service labor codes. At least one of a service repair procedure used to repair the vehicle or a respective service diagnostic code used to identify the fault is modified in response to analyzing the respective combinations.

摘要翻译： 提供了一种利用先前服务车辆的维修数据来增强服务诊断的方法。 从存储器存储装置获得先前服务车辆的维修数据。 服务数据被编译成服务诊断代码数据集和服务人工代码数据集。 服务诊断码数据集和服务人工代码数据集分为电子数据表。 在电子数据表中形成各种组合。 为电子数据表中的每个组合确定聚合计数。 识别与诊断代码或服务劳动代码中的多于一个的相关性的各个诊断代码或相应的服务劳工代码。 响应于分析各个组合，修改用于修理车辆的维修程序中的至少一个或用于识别故障的相应服务诊断代码。

公开(公告)号：US20090326841A1

公开(公告)日：2009-12-31

申请号：US12147556

申请日：2008-06-27

申请人： Xiaodong Zhang ,  Yilu Zhang ,  Yuen-Kwok Chin

发明人： Xiaodong Zhang ,  Yilu Zhang ,  Yuen-Kwok Chin

IPC分类号： G01R31/36 ,  G06N3/02 ,  G06F15/18

CPC分类号： G01R31/3679 ,  G01R31/3651

摘要： A method is provided for determining a state-of-health of a battery in a vehicle-during an engine cranking phase. An engine cranking phase is initiated. Characteristic data is recorded that includes battery voltage data and engine cranking speed data during the engine cranking phase. The characteristic data is provided to a pre-processing unit. The pre-processing unit normalizes the characteristic data for processing within a classifier. The normalized data is input o the classifier for determining the vehicle battery state-of-health. The classifier has a trained state-of-health decision boundary resulting from a plurality of trials in which predetermined characterization data is collected with known classes. The battery state-of-health is classified based on the trained state-of-health decision boundary.

摘要翻译： 在发动机起动阶段期间提供一种用于确定车辆中的电池的健康状态的方法。 启动发动机起动阶段。 记录在发动机起动阶段包括电池电压数据和发动机起动速度数据的特征数据。 将特征数据提供给预处理单元。 预处理单元对分类器内的特征数据进行归一化处理。 在分类器中输入归一化数据以确定车辆电池的健康状况。 分类器具有训练有素的健康状态决策边界，其由多个试验产生，其中以已知类别收集预定表征数据。 电池健康状况根据受过训练的健康状况决定界限进行分类。

公开(公告)号：US20090322340A1

公开(公告)日：2009-12-31

申请号：US12147552

申请日：2008-06-27

申请人： Xiaodong Zhang ,  Nick S. Kapsokavathis ,  Yilu Zhang ,  David W. Walters ,  Xidong Tang ,  Mutasim A. Salman

发明人： Xiaodong Zhang ,  Nick S. Kapsokavathis ,  Yilu Zhang ,  David W. Walters ,  Xidong Tang ,  Mutasim A. Salman

IPC分类号： G01N27/416

CPC分类号： H01M10/48 ,  G01R31/362 ,  G01R31/3631 ,  G01R31/3679 ,  H01M10/486

摘要： A method is provided for determining a battery's state-of-health. An initial battery voltage is measured after a first voltage drop during an initiation of an engine cranking phase. A battery voltage is monitored during the remainder of the engine cranking phase. A lowest battery voltage is determined during the remainder of the engine cranking phase. A determination is made if a voltage difference between the lowest battery voltage and the initial battery voltage at the initiation of the engine cranking phase is less than a voltage threshold. A low battery state-of-health is identified in response to the voltage difference being less than the voltage threshold.

摘要翻译： 提供了一种用于确定电池的健康状况的方法。 在发动机起动阶段开始之前的第一次电压降之后测量初始电池电压。 在发动机起动阶段的剩余时间内监测电池电压。 在发动机起动阶段的剩余时间内确定最低的电池电压。 如果发动机起动阶段开始时最低电池电压和初始电池电压之间的电压差小于电压阈值，则确定。 响应于电压差小于电压阈值来识别低电量的健康状态。

公开(公告)号：US20090295559A1

公开(公告)日：2009-12-03

申请号：US12131347

申请日：2008-06-02

申请人： Mark N. Howell ,  Mutasim A. Salman ,  Xidong Tang ,  Xiaodong Zhang ,  Yilu Zhang ,  Yuen-Kwok Chin ,  William C. Lin ,  Rami I. Debouk ,  Steven W. Holland ,  Sugato Chakrabarty ,  Rahul Chougule

发明人： Mark N. Howell ,  Mutasim A. Salman ,  Xidong Tang ,  Xiaodong Zhang ,  Yilu Zhang ,  Yuen-Kwok Chin ,  William C. Lin ,  Rami I. Debouk ,  Steven W. Holland ,  Sugato Chakrabarty ,  Rahul Chougule

IPC分类号： B60Q1/00

CPC分类号： B60Q11/00 ,  B60R2021/01184 ,  B60W30/02 ,  B60W50/0205

摘要： A system and method for determining the root cause of a fault in a vehicle system, sub-system or component using models and observations. In one embodiment, a hierarchical tree is employed to combine trouble or diagnostic codes from multiple sub-systems and components to get a confidence estimate of whether a certain diagnostic code is accurately giving an indication of problem with a particular sub-system or component. In another embodiment, a hierarchical diagnosis network is employed that relies on the theory of hierarchical information whereby at any level of the network only the required abstracted information is being used for decision making. In another embodiment, a graph-based diagnosis and prognosis system is employed that includes a plurality of nodes interconnected by information pathways. The nodes are fault diagnosis and fault prognosis nodes for components or sub-systems, and contain fault and state-of-health diagnosis and reasoning modules.

摘要翻译： 一种用于确定车辆系统，子系统或部件中使用模型和观测值的故障的根本原因的系统和方法。 在一个实施例中，使用分层树来组合来自多个子系统和组件的故障或诊断代码，以得到某一诊断代码是否准确地给出特定子系统或组件的问题的指示的置信度估计。 在另一个实施例中，采用依赖于层次信息理论的分级诊断网络，其中在网络的任何级别仅仅将所需的抽象信息用于决策。 在另一个实施例中，采用基于图的诊断和预后系统，其包括通过信息路径互连的多个节点。 节点是组件或子系统的故障诊断和故障预测节点，并包含故障和状态健康诊断和推理模块。

公开(公告)号：US20090055330A1

公开(公告)日：2009-02-26

申请号：US11843876

申请日：2007-08-23

申请人： Swarup Medasani ,  Qin Jiang ,  Narayan Srinivasa ,  Yilu Zhang ,  Leandro G. Barajas ,  Nick S. Kapsokavathis

发明人： Swarup Medasani ,  Qin Jiang ,  Narayan Srinivasa ,  Yilu Zhang ,  Leandro G. Barajas ,  Nick S. Kapsokavathis

IPC分类号： G06F15/18 ,  G06N7/02

CPC分类号： G01R31/3606 ,  G01R31/3693

摘要： Anomaly prediction of battery parasitic load includes processing input data related to a state of charge for a battery and a durational factor utilizing a machine learning algorithm and generating a predicted start-up state of charge. Warnings are issued if the predicted start-up state of charge drops below a threshold level within an operational time.

摘要翻译： 电池寄生负载的异常预测包括利用机器学习算法处理与电池的充电状态有关的输入数据和持续时间因子，并产生预测的充电状态。 如果预计的启动状态在运行时间内下降到阈值以下，则发出警告。

公开(公告)号：US20070244606A1

公开(公告)日：2007-10-18

申请号：US11403359

申请日：2006-04-13

申请人： Yilu Zhang ,  William Lin ,  Jing Zhang ,  Yuen-Kwok Chin

发明人： Yilu Zhang ,  William Lin ,  Jing Zhang ,  Yuen-Kwok Chin

IPC分类号： G06F19/00

CPC分类号： B60T8/17551 ,  B60T8/17552 ,  B60T2220/02 ,  B60T2230/02

摘要： A vehicle stability enhancement system that is adapted for an estimated driver workload. The system includes a driver workload estimation processor that estimates the driver workload based on certain factors, such as the vehicle speed or driver-behavior factors. The driver workload estimation is used to adjust the damping ratio and natural frequency in dynamic filters in a command interpreter to adjust a desired yaw rate signal and a desired side-slip signal. The driver workload estimation is also used to generate a yaw rate multiplication factor and a side-slip multiplication factor that modify a yaw rate stability signal and a side-slip stability signal in a feedback control processor that generates a stability control signal.

摘要翻译： 适用于估计驾驶员工作量的车辆稳定性增强系统。 该系统包括驾驶员工作量估计处理器，其基于某些因素（例如车辆速度或驾驶员行为因素）来估计驾驶员工作负荷。 驱动器工作量估计用于调整命令解释器中的动态滤波器中的阻尼比和固有频率，以调整期望的横摆率信号和期望的侧滑信号。 驾驶员工作量估计还用于产生在产生稳定性控制信号的反馈控制处理器中修改横摆率稳定性信号和侧滑稳定性信号的横摆率倍增因子和侧滑倍增因子。