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    • 1. 发明授权
    • Relative vehicle platform having synchronized adaptive offset calibration for lateral accelerometer and steering angle sensor
    • 相对车辆平台具有用于横向加速度计和转向角传感器的同步自适应偏移校准
    • US06185485B2
    • 2001-02-06
    • US09218281
    • 1998-12-22
    • Behrouz AshrafiDinu Petre MadauHongtei Eric Tseng
    • Behrouz AshrafiDinu Petre MadauHongtei Eric Tseng
    • B62D600
    • B60T8/1755B60T2210/22
    • A system and method for vehicle dynamic control processes a compensated yaw rate signal measurement and a compensated lateral acceleration signal measurement (30, 32) to derive a signal measurement of road bank angle disturbance not compensated for in a compensated steering angle signal measurement and provides the derived signal to a controller (12). The compensated steering angle signal measurement is an input to the controller. Because a disturbance already compensated in the compensated steering angle signal measurement is transparent to the controller, the controller is able to adjust the control action of the vehicle dynamic control system based on the derived signal measurement of road bank angle disturbance not compensated for in a compensated steering angle signal measurement, thereby providing enhanced robustness of control.
    • 用于车辆动态控制的系统和方法处理补偿的横摆速率信号测量和补偿的横向加速度信号测量(30,32),以导出在补偿的转向角信号测量中未补偿的道路坡度角扰动的信号测量,并且提供 导出信号到控制器(12)。 补偿转向角信号测量是控制器的输入。 由于在补偿转向角信号测量中已经补偿的扰动对于控制器是透明的,所以控制器能够基于经补偿的道路坡度角扰动的未得到补偿的导出信号测量值来调整车辆动态控制系统的控制动作 转向角信号测量,从而提供更强的控制鲁棒性。
    • 5. 发明申请
    • ADAPTIVE TRACTION CONTROL SYSTEM
    • 自适应跟踪控制系统
    • US20090150037A1
    • 2009-06-11
    • US12388804
    • 2009-02-19
    • Hongtei Eric TsengMichael FodorDavor Hrovat
    • Hongtei Eric TsengMichael FodorDavor Hrovat
    • G06F17/00
    • B60K28/16B60W10/06B60W10/184B60W30/18172B60W2520/263B60W2520/28Y02T10/7258
    • 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.
    • 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。
    • 6. 发明授权
    • Method and apparatus for determining lateral velocity of a vehicle
    • 用于确定车辆侧向速度的方法和装置
    • US06477480B1
    • 2002-11-05
    • US09713712
    • 2000-11-15
    • Hongtei Eric TsengDavorin David Hrovat
    • Hongtei Eric TsengDavorin David Hrovat
    • G06E1500
    • B60W40/109B60T8/172B60T2210/22B60T2250/04
    • 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.
    • 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。