Method and apparatus for predicting vehicle rollover during a trip-over event
    41.
    发明授权
    Method and apparatus for predicting vehicle rollover during a trip-over event 失效
    在跳闸事件期间预测车辆翻车的方法和装置

    公开(公告)号:US08073597B2

    公开(公告)日:2011-12-06

    申请号:US12429245

    申请日:2009-04-24

    IPC分类号: G05D3/00

    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。

    Dynamic observer for the estimation of vehicle lateral velocity
    42.
    发明授权
    Dynamic observer for the estimation of vehicle lateral velocity 有权
    用于估计车辆横向速度的动态观测器

    公开(公告)号:US07908112B2

    公开(公告)日:2011-03-15

    申请号:US12276965

    申请日:2008-11-24

    IPC分类号: G01P3/00

    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。

    ESTIMATION OF WHEEL NORMAL FORCE AND VEHICLE VERTICAL ACCELERATION
    43.
    发明申请
    ESTIMATION OF WHEEL NORMAL FORCE AND VEHICLE VERTICAL ACCELERATION 有权
    车轮正常力和车辆垂直加速度的估计

    公开(公告)号:US20100131154A1

    公开(公告)日:2010-05-27

    申请号:US12275880

    申请日:2008-11-21

    IPC分类号: G06F17/00 G01L5/00 G01P15/00

    摘要: A method for estimating the normal force at a wheel of a vehicle and the vertical acceleration of the vehicle that has particular application for ride and stability control of the vehicle. The method includes obtaining a suspension displacement value from at least one of a plurality of suspension displacement sensors mounted on the vehicle and estimating a spring force acting on a spring of a suspension element of the vehicle, a damper force acting on a damper of the suspension element of the vehicle, and a force acting at a center of a wheel. The method further includes determining a normal force at the wheel of the vehicle and a vertical acceleration of the vehicle based on the spring force, the damper force and the force at the center of the wheel of the vehicle.

    摘要翻译: 用于估计车辆的车轮处的法向力的方法以及具有用于车辆的骑行和稳定性控制的特定应用的车辆的垂直加速度。 该方法包括从安装在车辆上的多个悬架位移传感器中的至少一个获得悬架位移值,并且估计作用在车辆的悬挂元件的弹簧上的弹簧力,作用在悬架的阻尼器上的阻尼力 车辆的元件和作用在车轮中心的力。 该方法还包括基于弹簧力,阻尼力和在车辆的车轮中心处的力来确定车辆的车轮处的法向力和车辆的垂直加速度。

    ESTIMATION OF SURFACE LATERAL COEFFICIENT OF FRICTION
    44.
    发明申请
    ESTIMATION OF SURFACE LATERAL COEFFICIENT OF FRICTION 有权
    表面摩擦系数的周边系数的估计

    公开(公告)号:US20100131146A1

    公开(公告)日:2010-05-27

    申请号:US12277027

    申请日:2008-11-24

    IPC分类号: G06F7/00

    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。

    GPS-enhanced vehicle velocity estimation
    47.
    发明授权
    GPS-enhanced vehicle velocity estimation 有权
    GPS增强车速估计

    公开(公告)号:US09285485B2

    公开(公告)日:2016-03-15

    申请号:US12616933

    申请日:2009-11-12

    IPC分类号: G05D1/02 G01S19/52 G01C21/16

    CPC分类号: G01S19/52 G01C21/165

    摘要: A method is provided for estimating vehicle velocity for a vehicle using a single-antenna global positioning system (GPS). An absolute speed and a course angle of the vehicle is measured using the single-antenna GPS. The yaw rates of the vehicle are measured independently of the GPS. An integrated yaw rate of the vehicle is calculated as a function of the measured yaw rates over a period of time. A yaw angle is determined as a function of a reference yaw angle and the integrated yaw rate. Aside slip angle is calculated as a function of the estimated yaw angle and the course angle provided by the GPS. The vehicle velocity is determined as a function of the absolute speed and the side slip angle. The vehicle velocity is provided to a vehicle dynamic control application.

    摘要翻译: 提供一种用于使用单天线全球定位系统(GPS)估计车辆的车速的方法。 使用单天线GPS测量车辆的绝对速度和行驶角度。 独立于GPS测量车辆的偏航率。 根据一段时间内的测量的横摆角速度来计算车辆的积分横摆角速度。 偏航角被确定为参考偏航角和积分横摆角速度的函数。 作为由GPS提供的估计的偏航角和航向角的函数计算侧滑角。 车速是绝对速度和侧滑角的函数。 车辆速度被提供给车辆动态控制应用。

    Eye detection system using a single camera
    49.
    发明授权
    Eye detection system using a single camera 有权
    眼睛检测系统使用单个摄像头

    公开(公告)号:US08391554B2

    公开(公告)日:2013-03-05

    申请号:US12243088

    申请日:2008-10-01

    IPC分类号: G06K9/00

    摘要: A system and a method for detecting the eyes of a driver of a vehicle using a single camera. The method includes determining a set of positional parameters corresponding to a driving seat of the vehicle. The camera is positioned at a pre-determined location inside the vehicle, and a set of parameters corresponding to the camera is determined. The location of the driver's eyes is detected using the set of positional parameters, an image of the driver's face and the set of parameters corresponding to the camera.

    摘要翻译: 一种用于使用单个照相机检测车辆驾驶员的眼睛的系统和方法。 该方法包括确定对应于车辆的驾驶座椅的一组位置参数。 相机位于车辆内部的预定位置,并且确定与相机对应的一组参数。 使用一组位置参数,驾驶员脸部的图像和与相机对应的参数集来检测驾驶员的眼睛的位置。

    Road-adaptive side mirror adjustment system
    50.
    发明授权
    Road-adaptive side mirror adjustment system 有权
    道路自适应侧镜调节系统

    公开(公告)号:US08297763B2

    公开(公告)日:2012-10-30

    申请号:US12190223

    申请日:2008-08-12

    IPC分类号: G02B7/18

    CPC分类号: B60R1/025

    摘要: A system and method for automatically adjusting the viewing angle of both side rear-view mirrors on a vehicle when the vehicle is traveling on a hill. The system estimates the slope of the hill, and uses the estimated slope to determine a corrected viewing angle of the rear-view mirrors. Depending on whether the vehicle is traveling uphill or down-hill, would depend on which direction the rear-view mirrors will be adjusted.

    摘要翻译: 一种用于当车辆在山上行驶时自动调节车辆上的两侧后视镜的视角​​的系统和方法。 该系统估计山坡的斜率,并使用估计斜率来确定后视镜的校正视角。 根据车辆是否上坡或下坡,将取决于后视镜将被调整的方向。