Method and apparatus for controlling electro-magnetic particle clutch
    8.
    发明授权
    Method and apparatus for controlling electro-magnetic particle clutch 失效
    用于控制电磁颗粒离合器的方法和装置

    公开(公告)号:US4803628A

    公开(公告)日:1989-02-07

    申请号:US891317

    申请日:1986-07-31

    摘要: An apparatus and method for controlling an electro-magnetic particle clutch is provided. The apparatus includes first through third sensors, a memory, first through fourth calculating devices, first through third determining devices and a controller. The first sensor detects a throttle opening and outputs a first detected signal. The second sensor detects an actual engine revolution speed and outputs a second detected signal. The first calculating device calculates an engine torque in accordance with a first relationship and outputs a first calculated signal. The second calculating device calculates a tentative desired revolution speed and outputs a second calculated signal. The third sensor detects at least one of a plurality conditions in which the vehicle begins moving and outputs at least one of a plurality of detected signals. The first determining device determines a total compensation value in accordance with a third relationship and outputs a first determined signal. The third calculating device calculates a desired revolution speed and outputs a third calculated signal. The fourth calculating device calculates a feed back gain in accordance with a fifth relationships and outputs a fourth calculated signal. The second determining device determines an optimum torque in accordance with a sixth relationship, and outputs a second determined signal. The third determining device determines a control voltage in accordance with a seventh relationship, and outputs the third determined signal. The controller controls electric current supplied to a magnetizing coil of the electro-magnetic particle clutch in accordance with the determined control voltage.

    摘要翻译: 提供了一种用于控制电磁粒子离合器的装置和方法。 该装置包括第一至第三传感器,存储器,第一至第四计算装置,第一至第三确定装置和控制器。 第一传感器检测节气门开度并输出第一检测信号。 第二传感器检测实际的发动机转速并输出第二检测信号。 第一计算装置根据第一关系计算发动机扭矩并输出第一计算信号。 第二计算装置计算暂定的期望转速并输出第二计算信号。 第三传感器检测车辆开始移动的多个条件中的至少一个,并输出多个检测信号中的至少一个。 第一确定装置根据第三关系确定总补偿值,并输出第一确定信号。 第三计算装置计算期望的转速并输出第三计算信号。 第四计算装置根据第五关系计算反馈增益,并输出第四计算信号。 第二确定装置根据第六关系确定最佳扭矩,并输出第二确定信号。 第三确定装置根据第七关系确定控制电压,并输出第三确定信号。 控制器根据确定的控制电压来控制提供给电磁粒子离合器的磁化线圈的电流。

    Speed ratio control system for a continuously variable transmission for
vehicle
    9.
    发明授权
    Speed ratio control system for a continuously variable transmission for vehicle 失效
    用于车辆无级变速器的变速比控制系统

    公开(公告)号:US4743223A

    公开(公告)日:1988-05-10

    申请号:US870182

    申请日:1986-06-03

    摘要: A speed ratio control system for a continuously variable transmission is provided, wherein an oil flowrate to a hydraulic servo of an input or an output V-shaped pulley device is varied by a flow control valve, so that a speed ratio between the input and the output sides can be continuously changed. The system determines a deviation between a target value and a measured value and corrects the measured value in accordance with at least the characteristics of the flow control valve, so that the deviation and a rate of change per unit time of the speed ratio, or the deviation and a rate of change per unit time of a rotational speed of the input or output pulleys, will have a linear relationship over the entire area of control. This system avoids poor feedback gain because of the non-linearity of the characteristics of the flow control valve. Thus, the feedback gain is acceptable over the entire area of control of the continuously variable transmission. Even when the conditions of use are different, the speed ratio (or the input or output rotational speeds) can be stably controlled without disturbing the response.

    摘要翻译: 提供了一种用于无级变速器的变速比控制系统,其中通过流量控制阀改变输入或输出V形滑轮装置的液压伺服系统的油流量,使得输入和 输出端可以连续变化。 该系统确定目标值和测量值之间的偏差,并且至少根据流量控制阀的特性来校正测量值,使得每单位时间的速度比的偏差和变化率,或者 输入或输出滑轮的转速的单位时间的偏差和变化率将在整个控制区域上具有线性关系。 该系统由于流量控制阀的特性的非线性而避免了较差的反馈增益。 因此,反馈增益在无级变速器的整个控制区域都是可接受的。 即使使用条件不同,可以稳定地控制速度比(或输入或输出转速),而不会影响响应。