公开(公告)号：US08457841B2

公开(公告)日：2013-06-04

申请号：US11939698

申请日：2007-11-14

申请人： Richard J. Knoll ,  William Golpe ,  Nikolai K. Moshchuk ,  Chandra S. Namuduri ,  Flavio Nardi ,  Jihan Ryu ,  Raviraj U. Nayak

发明人： Richard J. Knoll ,  William Golpe ,  Nikolai K. Moshchuk ,  Chandra S. Namuduri ,  Flavio Nardi ,  Jihan Ryu ,  Raviraj U. Nayak

IPC分类号： G06F19/00 ,  B62K25/00 ,  F16F9/512

CPC分类号： F16F9/44 ,  B60G17/08 ,  B60G2400/202 ,  B60G2500/104

摘要： An analytical methodology for the specification of progressive optimal compression damping of a suspension system to negotiate severe events, yet provides very acceptable ride quality and handling during routine events. In a broad aspect, the method provides a progressive optimal unconstrained damping response of the wheel assembly with respect to the body. In a preferred aspect, the method provides a progressive optimal constrained damping response of the wheel assembly with respect to the body, wherein below a predetermined velocity a conventional damper force is retained.

摘要翻译： 用于规范悬架系统的渐进最佳压缩阻尼以协商严重事件的分析方法，但在常规事件期间提供非常可接受的乘坐质量和处理。 在广泛的方面，该方法提供了车轮组件相对于车身的渐进最优无约束阻尼响应。 在一个优选的方面，该方法提供了车轮组件相对于车身的渐进最优约束阻尼响应，其中在预定速度下保持传统的阻尼力。

公开(公告)号：US07991529B2

公开(公告)日：2011-08-02

申请号：US12144027

申请日：2008-06-23

申请人： Flavio Nardi ,  Nikolai K. Moshchuk

发明人： Flavio Nardi ,  Nikolai K. Moshchuk

IPC分类号： B60G17/016

CPC分类号： B60G17/018 ,  B60G17/08 ,  B60G2400/202 ,  B60G2400/252 ,  B60G2400/91 ,  B60G2401/10 ,  B60G2500/10

摘要： A method that detects whether the vibration level of the wheel is within the resonating frequency range by utilizing discrete velocity measurements. The method includes continuously measuring velocity levels of a wheel relative to a sprung mass vehicle component. These measurements are continuously recorded over a period of time. A periodic algorithm is provided, and the periodic algorithm and the velocity measurements are utilized to determine an output value. The output value is utilized to determine whether the vibration level of the wheel is within the resonating frequency range.

摘要翻译： 通过利用离散速度测量来检测车轮的振动水平是否在谐振频率范围内的方法。 该方法包括连续测量车轮相对于悬挂质量车辆部件的速度水平。 这些测量在一段时间内连续记录。 提供周期性算法，利用周期算法和速度测量来确定输出值。 输出值用于确定车轮的振动水平是否在谐振频率范围内。

公开(公告)号：US20100131229A1

公开(公告)日：2010-05-27

申请号：US12276965

申请日：2008-11-24

申请人： Flavio Nardi ,  Jihan Ryu ,  Nikolai K. Moshchuk ,  Kevin A. O'Dea

发明人： Flavio Nardi ,  Jihan Ryu ,  Nikolai K. Moshchuk ,  Kevin A. O'Dea

IPC分类号： G01P3/00 ,  G06F15/00

CPC分类号： B60T8/172 ,  B60T2210/22 ,  B60T2230/02 ,  B60T2250/04

摘要： A system and method for estimating vehicle lateral velocity that defines a relationship between front and rear axle lateral forces and front and rear axle side-slip angles. The method includes providing measurements of vehicle yaw-rate, lateral acceleration, longitudinal speed, and steering angle. The method also includes using these measurements to provide a measurement of the front and rear axle forces. The method calculates a front axle lateral velocity and a rear axle lateral velocity, and calculates a front axle side-slip angle based on the rear axle lateral velocity and a rear axle side-slip angle based on the front axle lateral velocity. The method then estimates front and rear axle forces, and selects a virtual lateral velocity that minimizes an error between the estimated and measured lateral axle forces. The method then provides an estimated vehicle lateral velocity using the selected virtual lateral velocity.

摘要翻译： 一种用于估计车辆横向速度的系统和方法，其限定前后轴向力和前后轴侧滑角之间的关系。 该方法包括提供车辆偏航率，横向加速度，纵向速度和转向角的测量。 该方法还包括使用这些测量来提供前后轴力的测量。 该方法计算前桥横向速度和后桥横向速度，并根据前桥横向速度和基于前桥横向速度的后桥侧滑角计算前轴侧滑角。 然后，该方法估计前轴和后轴力，并且选择使估计和测量的横向轴力之间的误差最小化的虚拟横向速度。 该方法然后使用所选择的虚拟横向速度提供估计的车辆横向速度。

公开(公告)号：US20100131141A1

公开(公告)日：2010-05-27

申请号：US12275856

申请日：2008-11-21

申请人： Jihan Ryu ,  Flavio Nardi ,  Nikolai K. Moshchuk ,  Kevin A. O'dea

发明人： Jihan Ryu ,  Flavio Nardi ,  Nikolai K. Moshchuk ,  Kevin A. O'dea

IPC分类号： B60W30/02

CPC分类号： B60T8/17551 ,  B60T8/172 ,  B60T2210/22 ,  B60W40/06 ,  B60W40/109 ,  B60W40/112

摘要： A method for road bank detection that has particular application in vehicle stability control systems and vehicle roll-over avoidance systems. The method for detection of a road bank includes obtaining a yaw rate value and a front and/or rear axle force value for a vehicle travelling on the road. It further includes comparing the obtained vehicle yaw rate value with a corresponding predetermined vehicle yaw rate value to obtain a vehicle yaw rate error value and comparing the obtained vehicle front and/or rear axle force value with a corresponding predetermined vehicle front and/or rear axle force value to obtain a vehicle front and/or rear axle force error value, and detecting the road bank based on the obtained vehicle yaw rate error value and the vehicle front and/or rear axle force error value.

摘要翻译： 一种在车辆稳定性控制系统和车辆翻转避免系统中具有特殊应用的道路堤防检测方法。 用于检测道路堤的方法包括获得在道路上行驶的车辆的横摆率值和前后轴力值。 进一步包括将获得的车辆横摆角速度值与相应的预定车辆横摆角速度值进行比较，以获得车辆横摆角速度误差值，并将获得的车辆前后轴力值与相应的预定车辆前部和/或后桥 力值以获得车辆前部和/或后轴力误差值，并且基于所获得的车辆横摆率误差值和车辆前部和/或后轴力误差值来检测道路堤。

公开(公告)号：US20100042293A1

公开(公告)日：2010-02-18

申请号：US12604642

申请日：2009-10-23

申请人： Nikolai K. Moshchuk ,  Chandra S. Namuduri ,  Flavio Nardi ,  Jihan Ryu ,  Richard J. Knoll ,  William Golpe

发明人： Nikolai K. Moshchuk ,  Chandra S. Namuduri ,  Flavio Nardi ,  Jihan Ryu ,  Richard J. Knoll ,  William Golpe

IPC分类号： G06F17/00

CPC分类号： B60G17/08 ,  B60G2400/202 ,  B60G2500/104 ,  F16F9/44

摘要： An analytical methodology for the specification of progressive optimal compression damping of a damper of a suspension system to negotiate a multiplicity of severe events, yet provides very acceptable ride quality and handling during routine events. The damping response of the damper is optimized based upon a progressive optimal constrained events damping function derived from a low envelope curve incorporated with a predetermined damper force acting on the wheel center below a predetermined wheel center velocity, u1, based on ride and handling considerations for a given vehicle or vehicle model according to the prior art methodology, whereby the low envelope curve is constructed utilizing a one degree of freedom nonlinear mechanical system model or a quarter car nonlinear mechanical system model.

摘要翻译： 用于规范悬架系统阻尼器的渐进最佳压缩阻尼的分析方法，以协商多种严重事件，但在日常事件期间提供非常可接受的乘坐质量和处理。 阻尼器的阻尼响应是基于一个渐进的最优约束事件阻尼函数进行优化的，该阻尼函数是从一个低包络线引出的，该低包络曲线基于一个预定的阻尼力，该预定的阻尼力作用在一个预定的车轮中心速度u1以下， 根据现有技术方法的给定车辆或车辆模型，由此利用一个自由度非线性机械系统模型或四分之一车辆非线性机械系统模型构造低包络线曲线。

公开(公告)号：US20090319123A1

公开(公告)日：2009-12-24

申请号：US12144027

申请日：2008-06-23

申请人： Flavio Nardi ,  Nikolai K. Moshchuk

发明人： Flavio Nardi ,  Nikolai K. Moshchuk

IPC分类号： B60G17/00

CPC分类号： B60G17/018 ,  B60G17/08 ,  B60G2400/202 ,  B60G2400/252 ,  B60G2400/91 ,  B60G2401/10 ,  B60G2500/10

摘要： A method that detects whether the vibration level of the wheel is within the resonating frequency range by utilizing discrete velocity measurements. The method includes continuously measuring velocity levels of a wheel relative to a sprung mass vehicle component. These measurements are continuously recorded over a period of time. A periodic algorithm is provided, and the periodic algorithm and the velocity measurements are utilized to determine an output value. The output value is utilized to determine whether the vibration level of the wheel is within the resonating frequency range.

摘要翻译： 通过利用离散速度测量来检测车轮的振动水平是否在谐振频率范围内的方法。 该方法包括连续测量车轮相对于悬挂质量车辆部件的速度水平。 这些测量在一段时间内连续记录。 提供周期性算法，利用周期算法和速度测量来确定输出值。 输出值用于确定车轮的振动水平是否在谐振频率范围内。

公开(公告)号：US08428819B2

公开(公告)日：2013-04-23

申请号：US12604642

申请日：2009-10-23

申请人： Nikolai K. Moshchuk ,  Chandra S. Namuduri ,  Flavio Nardi ,  Jihan Ryu ,  Richard J. Knoll ,  William Golpe

发明人： Nikolai K. Moshchuk ,  Chandra S. Namuduri ,  Flavio Nardi ,  Jihan Ryu ,  Richard J. Knoll ,  William Golpe

IPC分类号： B60G23/00

CPC分类号： B60G17/08 ,  B60G2400/202 ,  B60G2500/104 ,  F16F9/44

摘要： An analytical methodology for the specification of progressive optimal compression damping of a damper of a suspension system to negotiate a multiplicity of severe events, yet provides very acceptable ride quality and handling during routine events. The damping response of the damper is optimized based upon a progressive optimal constrained events damping function derived from a low envelope curve incorporated with a predetermined damper force acting on the wheel center below a predetermined wheel center velocity, u1, based on ride and handling considerations for a given vehicle or vehicle model according to the prior art methodology, whereby the low envelope curve is constructed utilizing a one degree of freedom nonlinear mechanical system model or a quarter car nonlinear mechanical system model.

摘要翻译： 用于规范悬架系统阻尼器的渐进最佳压缩阻尼的分析方法，以协商多种严重事件，但在日常事件期间提供非常可接受的乘坐质量和处理。 阻尼器的阻尼响应是基于一个渐进的最优约束事件阻尼函数进行优化的，该阻尼函数是从一个低包络线引出的，该低包络曲线基于一个预定的阻尼力，该预定的阻尼力作用在一个预定的车轮中心速度u1以下， 根据现有技术方法的给定车辆或车辆模型，由此利用一个自由度非线性机械系统模型或四分之一车辆非线性机械系统模型构造低包络线曲线。

公开(公告)号：US08078351B2

公开(公告)日：2011-12-13

申请号：US12277027

申请日：2008-11-24

申请人： Flavio Nardi ,  Jihan Ryu ,  Nikolai K. Moshchuk ,  Kevin A. O'Dea

发明人： Flavio Nardi ,  Jihan Ryu ,  Nikolai K. Moshchuk ,  Kevin A. O'Dea

IPC分类号： G06F7/00

CPC分类号： B60T8/172 ,  B60T2210/12 ,  B60T2230/02

摘要： A system and method for estimating surface coefficient of friction in a vehicle system. The method includes providing a kinematics relationship between vehicle yaw-rate, vehicle speed, vehicle steering angle and vehicle front and rear axle side-slip angles that is accurate for all surface coefficient of frictions on which the vehicle may be traveling. The method defines a nonlinear function for the front and rear axle side-slip angles relating to front and rear lateral forces and coefficient of friction, and uses the nonlinear function in the kinematics relationship. The method also provides a linear relationship of the front and rear axle side-slip angles and the front and rear lateral forces using the kinematics relationship. The method determines that the vehicle dynamics have become nonlinear using the linear relationship and then estimates the surface coefficient of friction when the vehicle dynamics are nonlinear.

摘要翻译： 一种用于估计车辆系统中的摩擦力表面系数的系统和方法。 该方法包括提供车辆偏航率，车辆速度，车辆转向角度以及车辆前后侧滑角之间的运动学关系，其对于车辆可能在其上行驶的摩擦的所有表面系数是准确的。 该方法定义了与前后侧向力和摩擦系数有关的前轴和后桥侧滑角的非线性函数，并在运动学关系中使用非线性函数。 该方法还使用运动学关系提供前后轴侧滑角与前后侧向力的线性关系。 该方法通过线性关系确定车辆动力学变为非线性，然后估计当车辆动力学是非线性时的摩擦表面系数。

公开(公告)号：US20100274450A1

公开(公告)日：2010-10-28

申请号：US12429245

申请日：2009-04-24

申请人： Flavio Nardi ,  Nikolai K. Moshchuk ,  Jihan Ryu ,  Edward McLenon ,  O. K. Kwon ,  Bridget M. O'Brien-Mitchell

发明人： Flavio Nardi ,  Nikolai K. Moshchuk ,  Jihan Ryu ,  Edward McLenon ,  O. K. Kwon ,  Bridget M. O'Brien-Mitchell

IPC分类号： B60R21/0132

CPC分类号： B60R21/0132 ,  B60R2021/0018 ,  B60R2021/01322 ,  B60R2021/01327

摘要： A vehicle includes wheels, force sensors adapted for a vertical force and lateral force of each wheel, an onboard device, and a controller. The controller calculates vehicle values using the vertical force and lateral force, compares the values to a corresponding threshold, and automatically deploys the device when each element value does not exceed a corresponding threshold. A method for determining when to deploy an airbag includes measuring a vertical and lateral force at each wheel, and measuring a yaw rate and roll angle. A lateral velocity is calculated using the lateral force, and a lift of each wheel is calculated using the vertical force. The roll angle, roll rate, and stopping time are processed to generate a point on a 3D rollover plane. A rollover energy rate is calculated, and the airbag deploys when the point, rollover energy rate, and lift do not exceed a threshold.

摘要翻译： 车辆包括车轮，适于每个车轮的垂直力和横向力的力传感器，车载装置和控制器。 控制器使用垂直力和横向力计算车辆值，将其与相应的阈值进行比较，并且当每个元素值不超过相应的阈值时，自动部署设备。 用于确定何时展开安全气囊的方法包括测量每个车轮处的垂直和横向力，并测量横摆角速度和侧倾角。 使用横向力计算横向速度，并使用垂直力计算每个车轮的升力。 处理滚动角度，滚动速度和停止时间以在3D翻转平面上生成点。 计算翻转能量比，当点，翻转能量速率和升程不超过阈值时，气囊展开。

公开(公告)号：US20110125455A1

公开(公告)日：2011-05-26

申请号：US13018671

申请日：2011-02-01

申请人： Flavio Nardi ,  Jihan Ryu ,  Nikolai K. Moshchuk ,  Kevin A. O'Dea

发明人： Flavio Nardi ,  Jihan Ryu ,  Nikolai K. Moshchuk ,  Kevin A. O'Dea

IPC分类号： G06F15/00 ,  G01P3/00

CPC分类号： B60T8/172 ,  B60T2210/22 ,  B60T2230/02 ,  B60T2250/04

摘要： A system and method for estimating vehicle lateral velocity that defines a relationship between front and rear axle lateral forces and front and rear axle side-slip angles. The method includes providing measurements of vehicle yaw-rate, lateral acceleration, longitudinal speed, and steering angle. The method also includes using these measurements to provide a measurement of the front and rear axle forces. The method calculates a front axle lateral velocity and a rear axle lateral velocity, and calculates a front axle side-slip angle based on the rear axle lateral velocity and a rear axle side-slip angle based on the front axle lateral velocity. The method then estimates front and rear axle forces, and selects a virtual lateral velocity that minimizes an error between the estimated and measured lateral axle forces. The method then provides an estimated vehicle lateral velocity using the selected virtual lateral velocity.

摘要翻译： 一种用于估计车辆横向速度的系统和方法，其限定前后轴向力和前后轴侧滑角之间的关系。 该方法包括提供车辆偏航率，横向加速度，纵向速度和转向角的测量。 该方法还包括使用这些测量来提供前后轴力的测量。 该方法计算前桥横向速度和后桥横向速度，并根据前桥横向速度和基于前桥横向速度的后桥侧滑角计算前轴侧滑角。 然后，该方法估计前轴和后轴力，并且选择使估计和测量的横向轴力之间的误差最小化的虚拟横向速度。 该方法然后使用所选择的虚拟横向速度提供估计的车辆横向速度。