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    • 1. 发明授权
    • GPS-enhanced vehicle velocity estimation
    • GPS增强车速估计
    • US09285485B2
    • 2016-03-15
    • US12616933
    • 2009-11-12
    • Kevin A. O'DeaJihan RyuFlavio NardiHualin Tan
    • Kevin A. O'DeaJihan RyuFlavio NardiHualin Tan
    • G05D1/02G01S19/52G01C21/16
    • G01S19/52G01C21/165
    • 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.
    • 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。
    • 4. 发明申请
    • DYNAMIC OBSERVER FOR THE ESTIMATION OF VEHICLE LATERAL VELOCITY
    • 用于车辆侧向速度估计的动态观测
    • US20100131229A1
    • 2010-05-27
    • US12276965
    • 2008-11-24
    • Flavio NardiJihan RyuNikolai K. MoshchukKevin A. O'Dea
    • Flavio NardiJihan RyuNikolai K. MoshchukKevin A. O'Dea
    • G01P3/00G06F15/00
    • B60T8/172B60T2210/22B60T2230/02B60T2250/04
    • 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.
    • 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。
    • 9. 发明授权
    • Method of operating an electronic stability control
    • 操作电子稳定控制的方法
    • US08886434B2
    • 2014-11-11
    • US12365594
    • 2009-02-04
    • Kevin A. O'DeaFlavio NardiJihan Ryu
    • Kevin A. O'DeaFlavio NardiJihan Ryu
    • G06F7/70G06F19/00G06G7/00G06G7/76B60B39/00B60T7/12G05D1/00G06F17/00B60T8/24B60W30/02
    • B60W30/02
    • A method of stabilizing a vehicle is provided. The vehicle is travelling at a forward speed and a lateral speed, and comprises a lateral acceleration sensor, a yaw sensor adapted to detect an actual yaw rate of the vehicle around a central axis, a steering mechanism adapted to steer the vehicle by a steered yaw rate, and an electronic stability control system. The method comprises determining the forward speed of the vehicle with the electronic stability control system, determining a yaw error rate based upon a difference between the actual yaw rate of the vehicle and the steered yaw rate, determining the vehicle is in an unstable condition by comparing the yaw error rate to a first predetermined yaw rate, computing a calculated lateral speed based on acceleration data from the lateral acceleration sensor, the forward speed, and the actual yaw rate in response to determining the vehicle is in the unstable condition, calculating a correction factor based on the calculated lateral speed of the vehicle and the forward speed of the vehicle, and adjusting operation of the electronic stability control system by the correction factor.
    • 提供一种稳定车辆的方法。 车辆以前进速度和横向速度行驶,并且包括横向加速度传感器,适于检测围绕中心轴线的车辆的实际横摆角速度的偏航传感器,适于通过转向偏转来转向车辆的转向机构 速率和电子稳定性控制系统。 该方法包括使用电子稳定性控制系统确定车辆的前进速度,基于车辆的实际横摆角速度与转向偏航率之间的差异来确定偏航误差率,通过比较确定车辆处于不稳定状态 响应于车辆的确定,基于来自横向加速度传感器的加速度数据,前进速度和实际横摆率计算计算出的横向速度的偏航错误率处于不稳定状态,计算校正值 基于计算出的车辆横向速度和车辆前进速度的因子,以及通过校正因子来调整电子稳定性控制系统的操作。