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    • 72. 发明授权
    • Vehicle speed control with adaptive compliance compensation
    • 车辆速度控制具有适应性符合性补偿
    • US5680024A
    • 1997-10-21
    • US657374
    • 1996-06-03
    • David Lynn EhleLisa Marie UnuvarDaniel Alexander CrawfordTimothy Lee BudzierSusan Jean Lane
    • David Lynn EhleLisa Marie UnuvarDaniel Alexander CrawfordTimothy Lee BudzierSusan Jean Lane
    • B60K31/04
    • B60K31/047
    • A vehicle speed control system provides adaptive compensation for compliance in a linking mechanism between a throttle control member and a throttle which creates hysteresis in throttle movement. The system has a vehicle speed sensor, an actuator having an output linked to the throttle control member, an actuator position signal generator and a control responsive to the vehicle speed sensor and the actuator position signal generator for positioning the actuator in closed loop control with a major loop in response to vehicle speed and a minor loop in response to actuator position. The control repeatedly determines when vehicle speed is not within a predetermined range and responds (1) deriving a desired actuator position signal, a present actuator position signal and a position error signal from the difference therebetween, (2) deriving an output position signal from the desired actuator position signal when the position error signal is not zero, (3) modifying the output position signal by a compliance compensation value for actuator movement in a first direction, and (4) activating the actuator to a position corresponding to the output position signal. The control further accumulates the second and subsequent position error signals for actuator movement in the first direction as an accumulated difference value and, when actuator movement is initiated in a second direction, updates the compliance compensation value as a predetermined percentage of the sum of the compliance compensation value and the accumulated difference value.
    • 车辆速度控制系统为节气门控制构件和节气门之间的联动机构提供适应性补偿,其在节气门运动中产生滞后。 该系统具有车速传感器,具有与节气门控制构件连接的输出的致动器,致动器位置信号发生器和响应于车速传感器和致动器位置信号发生器的控制器,用于将致动器定位在闭环控制中 响应于车辆速度的主回路和响应于致动器位置的小回路。 控制重复地确定何时车速不在预定范围内并且响应(1)从它们之间的差异导出期望的致动器位置信号,当前致动器位置信号和位置误差信号,(2)从 当位置误差信号不为零时所需的执行器位置信号,(3)通过用于致动器沿第一方向移动的顺应性补偿值修改输出位置信号,以及(4)将致动器激活到与输出位置信号相对应的位置 。 该控制进一步积累第二和随后的位置误差信号,用于致动器在第一方向上的移动作为累积的差值,并且当致动器沿第二方向开始运动时,将履约补偿值更新为合规性之和的预定百分比 补偿值和累计差值。