公开(公告)号：US07788007B2

公开(公告)日：2010-08-31

申请号：US11330640

申请日：2006-01-12

申请人： Nikolai K. Moshchuk ,  Shih-Ken Chen ,  Cheng-Foo Chen

发明人： Nikolai K. Moshchuk ,  Shih-Ken Chen ,  Cheng-Foo Chen

IPC分类号： B60G17/16

CPC分类号： B60W30/04 ,  B60G2800/9124 ,  B60W40/11 ,  B60W40/112 ,  B60W40/114 ,  B60W2720/18

摘要： A system and method for providing a vehicle roll stability indicator that estimates the propensity for vehicle rollover. The system determines vehicle kinematics from vehicle sensors, such as roll rate, yaw rate, lateral acceleration, vehicle speed, etc. From these kinematic values, the system estimates a roll angle of the vehicle and a bank angle of the vehicle. From the estimated bank angle, the system provides a corrected roll angle. From the corrected roll angle, the system determines a roll energy of the vehicle and a roll energy rate of the vehicle. From the roll energy and the roll energy rate, the system calculates a roll stability indicator that defines the potential that the vehicle will tip-up or roll over. From the roll stability indicator, vehicle stability control systems can take suitable action.

摘要翻译： 一种用于提供估计车辆翻车倾向的车辆侧倾稳定性指示器的系统和方法。 该系统从车辆传感器确定车辆运动学，例如滚转速率，横摆角速度，横向加速度，车辆速度等。从这些运动学值，系统估计车辆的侧倾角和车辆的倾斜角度。 从估计的倾斜角度，系统提供校正的滚动角度。 从校正的滚动角度，系统确定车辆的滚动能量和车辆的滚动能量速率。 根据滚动能量和滚动能量速率，系统计算出一个滚动稳定性指标，该指标定义了车辆翻倒或翻转的潜力。 从滚动稳定性指标出发，车辆稳定性控制系统可以采取适当的行动。

公开(公告)号：US07571039B2

公开(公告)日：2009-08-04

申请号：US11463052

申请日：2006-08-08

申请人： Shih-Ken Chen ,  Nikolai K. Moshchuk ,  Cheng-Foo Chen

发明人： Shih-Ken Chen ,  Nikolai K. Moshchuk ,  Cheng-Foo Chen

IPC分类号： B60G17/016 ,  B60G23/00 ,  B62K25/00

CPC分类号： B60G17/0162 ,  B60G17/0152 ,  B60G2202/20 ,  B60G2400/0521 ,  B60G2400/0523 ,  B60G2400/104 ,  B60G2400/204 ,  B60G2800/0124 ,  B60G2800/9124 ,  Y10S180/901

摘要： A rollover avoidance system for changing the damping characteristics of suspension dampers at each wheel of a vehicle so as to mitigate the potential for vehicle rollover. The system includes a plurality of vehicle parameter sensors for measuring vehicle parameters and providing vehicle parameter signals. The system also includes a controller for generating a damper suspension command signal for each damper using the vehicle parameter signals. The controller considers a roll control factor representing a rollover condition of the vehicle and a yaw stability control factor representing a yaw condition of the vehicle to set the damping of the dampers to mitigate the potential for vehicle rollover.

摘要翻译： 一种用于改变车辆每个车轮处的悬挂阻尼器的阻尼特性的翻转避免系统，以便减轻车辆翻车的可能性。 该系统包括多个用于测量车辆参数并提供车辆参数信号的车辆参数传感器。 该系统还包括控制器，用于使用车辆参数信号为每个阻尼器产生阻尼器悬挂指令信号。 控制器考虑表示车辆的翻转状态的滚动控制因素以及表示车辆的偏航条件的偏航稳定性控制因素，以设定阻尼器的阻尼以减轻车辆翻车的可能性。

公开(公告)号：US20080040000A1

公开(公告)日：2008-02-14

申请号：US11463052

申请日：2006-08-08

申请人： Shih-Ken Chen ,  Nikolai K. Moshchuk ,  Cheng-Foo Chen

发明人： Shih-Ken Chen ,  Nikolai K. Moshchuk ,  Cheng-Foo Chen

IPC分类号： B60G17/016

CPC分类号： B60G17/0162 ,  B60G17/0152 ,  B60G2202/20 ,  B60G2400/0521 ,  B60G2400/0523 ,  B60G2400/104 ,  B60G2400/204 ,  B60G2800/0124 ,  B60G2800/9124 ,  Y10S180/901

摘要： A rollover avoidance system for changing the damping characteristics of suspension dampers at each wheel of a vehicle so as to mitigate the potential for vehicle rollover. The system includes a plurality of vehicle parameter sensors for measuring vehicle parameters and providing vehicle parameter signals. The system also includes a controller for generating a damper suspension command signal for each damper using the vehicle parameter signals. The controller considers a roll control factor representing a rollover condition of the vehicle and a yaw stability control factor representing a yaw condition of the vehicle to set the damping of the dampers to mitigate the potential for vehicle rollover.

摘要翻译： 一种用于改变车辆每个车轮处的悬挂阻尼器的阻尼特性的翻转避免系统，以便减轻车辆翻车的可能性。 该系统包括多个用于测量车辆参数并提供车辆参数信号的车辆参数传感器。 该系统还包括控制器，用于使用车辆参数信号为每个阻尼器产生阻尼器悬挂指令信号。 控制器考虑表示车辆的翻转状态的滚动控制因素以及表示车辆的偏航条件的偏航稳定性控制因素，以设定阻尼器的阻尼以减轻车辆翻车的可能性。

公开(公告)号：US20070185623A1

公开(公告)日：2007-08-09

申请号：US11346948

申请日：2006-02-03

申请人： Shih-Ken Chen ,  Jihan Ryu ,  Cheng-Foo Chen

发明人： Shih-Ken Chen ,  Jihan Ryu ,  Cheng-Foo Chen

IPC分类号： G06F17/00

CPC分类号： B60W30/04 ,  B60G2400/104 ,  B60G2400/208 ,  B60G2400/252 ,  B60W2510/22 ,  B60W2520/125 ,  B60W2520/14

摘要： A system and method for detecting vehicle wheel lift. The system includes wheel speed sensors for measuring the speed of each wheel of the vehicle, and suspension sensors for measuring the position of the vehicle suspension at each wheel of the vehicle. A controller determines whether any of the wheels are off the ground by using a kinematic relationship that uses the wheel speed signals and independently determines whether any of the wheels are off the ground by using damper spring displacement from the suspension sensors.

摘要翻译： 一种用于检测车轮升降的系统和方法。 该系统包括用于测量车辆每个车轮的速度的车轮速度传感器和用于测量车辆每个车轮处的车辆悬架的位置的悬架传感器。 控制器通过使用使用车轮速度信号的运动学关系来确定任何车轮是否离开地面，并且通过使用来自悬架传感器的阻尼弹​​簧位移来独立地确定任何车轮是否离开地面。

公开(公告)号：US20070162202A1

公开(公告)日：2007-07-12

申请号：US11330640

申请日：2006-01-12

申请人： Nikolai Moshchuk ,  Shih-Ken Chen ,  Cheng-Foo Chen

发明人： Nikolai Moshchuk ,  Shih-Ken Chen ,  Cheng-Foo Chen

IPC分类号： G06F17/00 ,  B60G17/016

CPC分类号： B60W30/04 ,  B60G2800/9124 ,  B60W40/11 ,  B60W40/112 ,  B60W40/114 ,  B60W2720/18

摘要： A system and method for providing a vehicle roll stability indicator that estimates the propensity for vehicle rollover. The system determines vehicle kinematics from vehicle sensors, such as roll rate, yaw rate, lateral acceleration, vehicle speed, etc. From these kinematic values, the system estimates a roll angle of the vehicle and a bank angle of the vehicle. From the estimated bank angle, the system provides a corrected roll angle. From the corrected roll angle, the system determines a roll energy of the vehicle and a roll energy rate of the vehicle. From the roll energy and the roll energy rate, the system calculates a roll stability indicator that defines the potential that the vehicle will tip-up or roll over. From the roll stability indicator, vehicle stability control systems can take suitable action.

摘要翻译： 一种用于提供估计车辆翻车倾向的车辆侧倾稳定性指示器的系统和方法。 该系统从车辆传感器确定车辆运动学，例如滚转速率，横摆角速度，横向加速度，车辆速度等。从这些运动学值，系统估计车辆的侧倾角和车辆的倾斜角度。 从估计的倾斜角度，系统提供校正的滚动角度。 根据校正的滚动角度，系统确定车辆的滚动能量和车辆的滚动能量速率。 根据滚动能量和滚动能量速率，系统计算出一个滚动稳定性指标，该指标定义了车辆翻倒或翻转的潜力。 从滚动稳定性指标出发，车辆稳定性控制系统可以采取适当的行动。

公开(公告)号：US6056371A

公开(公告)日：2000-05-02

申请号：US138685

申请日：1998-08-24

申请人： William Chin-Woei Lin ,  Youssef Ahmed Ghoneim ,  David Michael Sidlosky ,  Yuen-Kwok Chin ,  Cheng-Foo Chen

发明人： William Chin-Woei Lin ,  Youssef Ahmed Ghoneim ,  David Michael Sidlosky ,  Yuen-Kwok Chin ,  Cheng-Foo Chen

IPC分类号： B60T8/1755 ,  B60K28/10

CPC分类号： B60T8/17555

摘要： An improved active brake control in which differential braking is used in a feed-forward control to develop vehicle yaw in response to a desired yaw value determined as a function of steering wheel position and vehicle speed. The desired yaw rate value is used to develop a derivative yaw component and a proportional yaw component, which are summed to form a feed-forward yaw command for differential braking. Both proportional and derivative components have limited control authority determined by dead-band and saturation thresholds, and the proportional term is subjected to a diminishing integrator which reduces the yaw command as the desired yaw rate value approaches steady-state.

摘要翻译： 改进的主动制动控制，其中在前馈控制中使用差速制动以响应于作为方向盘位置和车辆速度的函数确定的期望的偏航角度来开发车辆偏航。 所需的偏航角速度值用于形成导数偏航分量和比例偏航分量，它们相加以形成用于差速制动的前馈偏航指令。 比例和微分分量均具有由死区和饱和阈值确定的有限的控制权限，并且比例项受到减小的积分器，当希望的偏航速率值接近稳态时减小偏航指令。

公开(公告)号：US20080306687A1

公开(公告)日：2008-12-11

申请号：US11758059

申请日：2007-06-05

申请人： Jihan Ryu ,  Cheng-Foo Chen

发明人： Jihan Ryu ,  Cheng-Foo Chen

IPC分类号： G01C21/10

CPC分类号： G01C21/10

摘要： A vehicle includes a GPS system and a longitudinal accelerometer. Accelerometer corrections are derived based on GPS velocity data. Individual wheel speeds are determined based on GPS velocity data. Longitudinal vehicle velocity may be determined based on accelerometer data or individual wheel speeds.

摘要翻译： 车辆包括GPS系统和纵向加速度计。 基于GPS速度数据导出加速度计校正。 单个车轮速度是根据GPS速度数据确定的。 可以基于加速度计数据或单独的车轮速度来确定纵向车速。

公开(公告)号：US5644239A

公开(公告)日：1997-07-01

申请号：US228561

申请日：1994-04-15

申请人： Joseph Y. Huang ,  Cheng-Foo Chen

发明人： Joseph Y. Huang ,  Cheng-Foo Chen

IPC分类号： G01N33/28 ,  G01N27/02

CPC分类号： G01N33/2888

摘要： A method and apparatus for determining the condition of a fluid used in a process, such as a lubricating oil used in an internal combustion engine. A sample of the fluid is heated to an elevated temperature, a measurement is taken of an electrical characteristic of the fluid at that first temperature, the fluid is heated still further, and the aforesaid electrical characteristic is measured again. The two measured values of the electrical characteristic are used to calculate a quality parameter which, when compared with quality parameter values corresponding to fluid samples of varying condition, gives an estimate of the relative condition of the fluid sample under test. The test procedure also includes a measurement of the opacity of the fluid sample to visible light, with this measurement being used in conjunction with the calculated quality parameter to more accurately determine the relative condition of the fluid under test. The tester unit may be operated in a stand-alone manner or it may be connected to a computer for storage and display of test results.

摘要翻译： 一种用于确定在诸如内燃机中使用的润滑油的过程中使用的流体的状态的方法和装置。 将流体样品加热到升高的温度，在第一温度下测量流体的电特性，再进一步加热流体，再次测量上述电特性。 使用电特性的两个测量值来计算质量参数，当与对应于变化条件的流体样品的质量参数值进行比较时，给出被测流体样品的相对条件的估计。 测试程序还包括流体样品对可见光的不透明度的测量，该测量与所计算的质量参数结合使用，以更精确地确定被测流体的相对状况。 测试器单元可以以独立的方式操作，或者可以连接到计算机用于存储和显示测试结果。

公开(公告)号：US08095309B2

公开(公告)日：2012-01-10

申请号：US11758059

申请日：2007-06-05

申请人： Jihan Ryu ,  Cheng-Foo Chen

发明人： Jihan Ryu ,  Cheng-Foo Chen

IPC分类号： G01C21/00

CPC分类号： G01C21/10

摘要： A vehicle includes a GPS system and a longitudinal accelerometer. Accelerometer corrections are derived based on GPS velocity data. Individual wheel speeds are determined based on GPS velocity data. Longitudinal vehicle velocity may be determined based on accelerometer data or individual wheel speeds.

摘要翻译： 车辆包括GPS系统和纵向加速度计。 基于GPS速度数据导出加速度计校正。 单个车轮速度是根据GPS速度数据确定的。 可以基于加速度计数据或单独的车轮速度来确定纵向车速。