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    ADAPTIVE TRACTION CONTROL SYSTEM
    3.
    发明申请
    ADAPTIVE TRACTION CONTROL SYSTEM 有权
    自适应跟踪控制系统

    公开(公告)号：US20090150037A1

    公开(公告)日：2009-06-11

    申请号：US12388804

    申请日：2009-02-19

    Applicant: Hongtei Eric Tseng ,  Michael Fodor ,  Davor Hrovat

    Inventor： Hongtei Eric Tseng ,  Michael Fodor ,  Davor Hrovat

    IPC: G06F17/00

    CPC classification number: B60K28/16 ,  B60W10/06 ,  B60W10/184 ,  B60W30/18172 ,  B60W2520/263 ,  B60W2520/28 ,  Y02T10/7258

    Abstract: A method of controlling a traction control system (30) includes continuously adapting a steady state driven wheel speed to reference wheel speed ratio, so that said traction control system can avoid unnecessary actuations (e.g., demanding torque reduction). The continuous adaptation methodology provides traction control robustness to vehicles equipped with a spare tire, or a different final drive such as in the use of aftermarket parts. The method includes a dual rate adaptation that allows both fast adaptation and fine tuning capabilities of the ratio. The method includes comparing the instant driven wheel speed to reference wheel speed ratio to the filtered driven wheel speed to reference wheel speed ratio, to obtain a ratio difference. When the difference is above a threshold, the first filter constant is selected and the first constant is applied to an adaptation filter, resulting in a first filtered and adapted ratio. The traction control system is controlled with the adapted ratio. When the difference is below the threshold, the second filter constant is selected and the selected constant is applied to the adaptation filter, resulting in the second filtered and adapted ratio. The traction control system is controlled with the adapted ratio.

    Abstract translation: 控制牵引力控制系统（30）的方法包括使稳态驱动轮速度连续地适应参考轮速比，使得所述牵引力控制系统可以避免不必要的动作（例如，要求转矩降低）。 持续适应方法为配备备用轮胎的车辆或不同的最终驱动装置（如使用售后部件）提供牵引力控制的鲁棒性。 该方法包括双速率适配，其允许比率的快速适应和微调能力。 该方法包括将即时驱动轮速度与参考轮速比与过滤后的从动轮速度相对于参考轮速比进行比较，以获得比率差。 当差值高于阈值时，选择第一滤波常数，将第一常数应用于自适应滤波器，得到第一滤波和适应比。 牵引力控制系统以适应的比例进行控制。 当差值低于阈值时，选择第二滤波常数，并将所选常数应用于自适应滤波器，得到第二滤波和适应比。 牵引力控制系统以适应的比例进行控制。

    Method and apparatus for determining lateral velocity of a vehicle
    4.
    发明授权
    Method and apparatus for determining lateral velocity of a vehicle 有权
    用于确定车辆侧向速度的方法和装置

    公开(公告)号：US06477480B1

    公开(公告)日：2002-11-05

    申请号：US09713712

    申请日：2000-11-15

    Applicant: Hongtei Eric Tseng ,  Davorin David Hrovat

    Inventor： Hongtei Eric Tseng ,  Davorin David Hrovat

    IPC: G06E1500

    CPC classification number: B60W40/109 ,  B60T8/172 ,  B60T2210/22 ,  B60T2250/04

    Abstract: A method and apparatus for determining lateral velocity of a vehicle (10) uses a controller (16) having a lateral velocity estimator (18) therein. A vehicle speed determination circuit (20) is used to determine the vehicle speed which is coupled to the controller (16). A yaw rate sensor (26) is used to generate a yaw rate signal, a lateral acceleration signal (28) is used to generate a lateral acceleration signal, and a roll angle sensor (30) is used to generate a roll angle signal that are each coupled to controller (16). The controller (16) measures an unbiased lateral velocity derivative and determines a fictitious lateral velocity estimation using the unbiased lateral velocity derivative. Using the fictitious error to drive a model based adaptive observer, an accurate lateral velocity determination may he made in spite of model uncertainties and measurement noise.

    Abstract translation: 用于确定车辆（10）的横向速度的方法和装置使用其中具有横向速度估计器（18）的控制器（16）。 车速确定电路（20）用于确定耦合到控制器（16）的车速。 横摆率传感器（26）用于产生横摆率信号，横向加速度信号（28）用于产生横向加速度信号，而侧倾角传感器（30）用于产生侧倾角信号， 每个耦合到控制器（16）。 控制器（16）测量无偏差的横向速度导数，并使用无偏差的横向速度导数确定虚拟横向速度估计。 使用虚拟误差来驱动基于模型的自适应观测器，尽管存在模型不确定性和测量噪声，但是可以进行精确的横向速度确定。

    System and Method for Detecting a Pitch Rate Sensor Fault
    8.
    发明申请
    System and Method for Detecting a Pitch Rate Sensor Fault 审中-公开
    用于检测音高传感器故障的系统和方法

    公开(公告)号：US20090254244A1

    公开(公告)日：2009-10-08

    申请号：US12062762

    申请日：2008-04-04

    Applicant: Li Xu ,  Hongtei Eric Tseng ,  Joseph Carr Meyers

    Inventor： Li Xu ,  Hongtei Eric Tseng ,  Joseph Carr Meyers

    IPC: B60W40/12

    CPC classification number: B60W30/04

    Abstract: A system and method for detecting a fault in a pitch rate sensor onboard a vehicle. Signals, including a steering wheel angle, a yaw rate, a roll rate, a longitudinal acceleration, a lateral acceleration, and a vehicle speed, are processed in a controller to validate a pitch rate signal. Upon detection of a fault in the pitch rate signal, the system and method will determine a process in which to minimize negative effects of the pitch sensor fault. The system and method will then direct the controller to select a process, such as a direct shutdown, a slow shutdown or replace a signal, in a relevant control system, based on the determination.

    Abstract translation: 一种用于检测车辆上的俯仰速率传感器的故障的系统和方法。 在控制器中处理包括方向盘角度，横摆率，滚动速率，纵向加速度，横向加速度和车辆速度的信号以验证俯仰速率信号。 在检测到俯仰速率信号中的故障时，系统和方法将确定一个过程，以最小化俯仰传感器故障的负面影响。 然后，系统和方法将基于该确定，指示控制器在相关控制系统中选择一个过程，例如直接关机，慢关闭或替换信号。

    Adaptive traction control system
    9.
    发明授权
    Adaptive traction control system 失效
    自适应牵引力控制系统

    公开(公告)号：US07529611B2

    公开(公告)日：2009-05-05

    申请号：US11160116

    申请日：2005-06-09

    Applicant: Hongtei Eric Tseng ,  Michael Fodor ,  Davor Hrovat

    Inventor： Hongtei Eric Tseng ,  Michael Fodor ,  Davor Hrovat

    IPC: B60L15/00 ,  B60L15/20

    CPC classification number: B60K28/16 ,  B60W10/06 ,  B60W10/184 ,  B60W30/18172 ,  B60W2520/263 ,  B60W2520/28 ,  Y02T10/7258

    Abstract: A method of controlling a traction control system (30) includes continuously adapting a steady state driven wheel speed to reference wheel speed ratio, so that said traction control system can avoid unnecessary actuations (e.g., demanding torque reduction). The continuous adaptation methodology provides traction control robustness to vehicles equipped with a spare tire, or a different final drive such as in the use of aftermarket parts. The method includes a dual rate adaptation that allows both fast adaptation and fine tuning capabilities of the ratio. The method includes comparing the instant driven wheel speed to reference wheel speed ratio to the filtered driven wheel speed to reference wheel speed ratio, to obtain a ratio difference. When the difference is above a threshold, the first filter constant is selected and the first constant is applied to an adaptation filter, resulting in a first filtered and adapted ratio. The traction control system is controlled with the adapted ratio. When the difference is below the threshold, the second filter constant is selected and the selected constant is applied to the adaptation filter, resulting in the second filtered and adapted ratio. The traction control system is controlled with the adapted ratio.

    Abstract translation: 控制牵引力控制系统（30）的方法包括使稳态驱动轮速度连续地适应参考轮速比，使得所述牵引力控制系统可以避免不必要的动作（例如，要求转矩降低）。 持续适应方法为配备备用轮胎的车辆或不同的最终驱动装置（如使用售后部件）提供牵引力控制的鲁棒性。 该方法包括双速率适配，其允许比率的快速适应和微调能力。 该方法包括将即时驱动轮速度与参考轮速比与过滤后的从动轮速度相对于参考轮速比进行比较，以获得比率差。 当差值高于阈值时，选择第一滤波常数，将第一常数应用于自适应滤波器，得到第一滤波和适应比。 牵引力控制系统以适应的比例进行控制。 当差值低于阈值时，选择第二滤波常数，并将所选常数应用于自适应滤波器，得到第二滤波和适应比。 牵引力控制系统以适应的比例进行控制。

    Method for detecting fault of vehicle motion sensors
    10.
    发明授权
    Method for detecting fault of vehicle motion sensors 有权
    车辆运动传感器故障检测方法

    公开(公告)号：US06202009B1

    公开(公告)日：2001-03-13

    申请号：US09218285

    申请日：1998-12-22

    Applicant: Hongtei Eric Tseng

    Inventor： Hongtei Eric Tseng

    IPC: G06F700

    CPC classification number: B60T8/885 ,  B60T8/171 ,  B60T2210/22

    Abstract: A method for detecting fault in vehicle motion sensors for a motor vehicle includes providing a measured lateral acceleration signal and yaw rate signal. The method further includes calculating, respectively, a first and second road bank angle estimate based on these signals. Also included is determining a first and second maximum road bank angle based on the first and second road bank angle, respectively, and calculating a first and second threshold based on these values. The method further includes comparing whether the first and second road bank angles exceeds the second and first thresholds, respectively, and if so, indicating either one or both a lateral acceleration signal fault or yaw rate signal fault.

    Abstract translation: 用于检测用于机动车辆的车辆运动传感器中的故障的方法包括提供测量的横向加速度信号和横摆率信号。 该方法还包括分别基于这些信号来计算第一和第二路堤角度估计。 还包括分别基于第一和第二路堤角度确定第一和第二最大路堤角度，并且基于这些值来计算第一和第二阈值。 该方法还包括比较第一和第二路堤角度是否分别超过第二和第二阈值，如果是，则指示横向加速度信号故障或横摆率信号故障中的一个或两个。

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