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    • 4. 发明申请
    • FUZZY STEERING CONTROLLER
    • FUZZY转向控制器
    • US20020138187A1
    • 2002-09-26
    • US09781019
    • 2001-02-09
    • The Board of Trustees of the University of Illinois
    • Hongchu QiuQin ZhangJohn F. Reid
    • B62D005/06
    • B62D1/28B62D6/00G05B13/0275Y10S706/905
    • A fuzzy steering controller for wheel-type agricultural vehicles with an electrohydraulic steering system is disclosed. The fuzzy controller was developed based on a common-sense model of agricultural vehicle steering. The controller implements steering corrections based upon the desired steering rate and the error between the desired and the actual wheel angles. The controller consists of a variable fuzzifier, an inference engine with a steering control rulebase, and a control signal defuzzifier. The controller could be used on different platforms. Tuning of the fuzzy membership functions will accommodate for physical differences between the platforms. The controller achieves prompt and accurate steering control performance on both a hardware-in-the-loop electrohydraulic steering simulator and on an agricultural tractor.
    • 公开了一种具有电动液压转向系统的轮式农用车辆的模糊转向控制器。 模糊控制器是基于农用车辆转向的常识模型而开发的。 控制器基于期望的转向速率和期望的和实际的车轮角度之间的误差来实现转向校正。 控制器由可变模糊器,具有转向控制规则库的推理机和控制信号去模糊器组成。 控制器可以在不同的平台上使用。 调整模糊隶属函数将适应平台之间的物理差异。 控制器在硬件在环电动液压转向模拟器和农用拖拉机上实现快速准确的转向控制性能。
    • 6. 发明授权
    • Transmission control apparatus for nonstage transmission of vehicles
    • 用于车辆非档次传输的变速器控制装置
    • US5600557A
    • 1997-02-04
    • US282560
    • 1994-07-29
    • Sumitaka Ogawa
    • Sumitaka Ogawa
    • B60W10/04B60W10/06B60W10/10B60W10/101B60W50/00F16H9/00F16H61/00F16H61/04F16H61/662B60K26/00F16H61/02
    • F16H61/66254B60W2050/0057F16H2061/0081Y10S706/90Y10S706/905Y10T477/619Y10T477/688
    • To provide the driver with a driving feeling which faithfully keeps up with various running states of the vehicle and running requirements of the driver by finding an accommodation coefficient indicating a running state by fuzzy inference. A target rotational speed of the engine is set on the basis of the accommodation coefficient found during the previous step. The change-gear ratio of the nonstage transmission is controlled so as to result in the target rotational speed of the engine set at the immediately previous step. A transmission control unit includes an accommodation coefficient fuzzy-inferring control, a target engine rotational speed setting control and a change-gear ratio controlling member. Inputting the change-gear ratio R, the throttle opening O, the speed v of the vehicle and the change in vehicle speed per unit time (or the acceleration) G, the accommodation coefficient fuzzy-inferring control finds a rate of change A in accommodation coefficient A by using fuzzy rules set in advance. The target engine rotational speed setting control sets a target rotational speed NE of an engine on the basis of at least the accommodation coefficient A and the speed V of the vehicle. The change-gear ratio controlling member controls the change-gear ratio R of the non-state transmission to provide a rotational speed N of the engine equal to the target engine rotational speed NE.
    • 通过模糊推理找到指示运行状态的调节系数,为司机提供驾驶感觉,忠实地跟上车辆的各种运行状态和驾驶员的行驶要求。 基于在前一步骤中找到的调节系数来设定发动机的目标转速。 控制非级变速器的变速比,从而使发动机的目标转速设定在紧接上一步。 传动控制单元包括调节系数模糊推断控制,目标发动机转速设定控制和变速比控制构件。 输入变速比R,节气门开度O,车辆速度v和单位时间(或加速度)G的车速变化,住宿系数模糊推定控制找到调节变化率A 系数A通过使用预先设定的模糊规则。 目标发动机转速设定控制至少基于车辆的调节系数A和速度V来设定发动机的目标转速NE。 变速比控制构件控制非状态变速器的变速比R,以提供与目标发动机转速NE相等的发动机的转速N.
    • 8. 发明授权
    • Vehicle slip angle measuring method and a device therefor
    • 车辆滑角测量方法及其装置
    • US5579245A
    • 1996-11-26
    • US191082
    • 1994-02-04
    • Manabu Kato
    • Manabu Kato
    • G01C21/20B62D6/00B62D7/15G01C21/00G01B7/00
    • B62D6/00B62D7/159B60T2230/02Y10S706/905
    • A vehicle slip angle measuring device includes an approximate calculation block for deriving an approximate value of a vehicle centroid slip angle by use of an approximate expression derived from a linear two-degree-of-freedom vehicle model. The approximate value is derived based on outputs from a steering wheel sensor, vehicle velocity sensor and yaw angular velocity sensor. The device further includes a preprocessing block for preprocessing outputs from the above three sensors, longitudinal acceleration sensor and lateral acceleration sensor to create input information. Finally, the device includes a learned neural network for receiving the approximate value and input information and for outputting a correction value corresponding to a deviation between an actual slip angle and the approximate value. The correction value from the neural network is added to the approximate value from the approximate calculation block to derive a precise vehicle centroid slip angle.
    • 车辆滑行角测量装置包括用于通过使用从线性二自由度车辆模型导出的近似表达式来导出车辆中心滑移角的近似值的近似计算块。 基于来自方向盘传感器,车速传感器和偏航角速度传感器的输出导出近似值。 该装置还包括用于预处理来自上述三个传感器的输出的预处理块,纵向加速度传感器和横向加速度传感器以产生输入信息。 最后,该装置包括用于接收近似值和输入信息并用于输出对应于实际滑移角与近似值之间的偏差的校正值的学习神经网络。 将来自神经网络的校正值从近似计算块添加到近似值,以得到精确的车辆中心滑移角。