Shift control apparatus and shift control of continuously variable transmission
    3.
    发明授权
    Shift control apparatus and shift control of continuously variable transmission 有权
    变速控制装置和无级变速器的变速控制

    公开(公告)号:US06602163B2

    公开(公告)日:2003-08-05

    申请号:US09854605

    申请日:2001-05-15

    IPC分类号: F16H5964

    摘要: When the temperature of operating fluid of an actuator is low, a target input rotation speed lower limit value (NinL) is set. The lower limit value (NinL) is greater than a lower limit value set for a normal temperature of operating fluid. A target input rotation speed (Nint) is calculated from the state of running of a vehicle, such as the amount of operation of an accelerator, the vehicle speed, etc. If the target input rotation speed is lower than the lower limit value (NinL), the target input rotation speed is reset to the lower limit value (NinL). As a result of a control that includes the above-described steps, the speed ratio &ggr; becomes relatively high before the vehicle stops. Therefore, even if the speed ratio-changing rate is low, the speed ratio (&ggr;) can be brought to or near a maximum value (&ggr;max) before the vehicle stops. Thus, reductions in the speed ratio-changing rate caused by low temperature of the operating fluid of the actuator can be curbed.

    摘要翻译: 当致动器的工作流体的温度低时,设定目标输入转速下限值(NinL)。 下限值(NinL)大于对工作流体的常温设定的下限值。 从车辆的行驶状态(例如加速器的运转量,车速等)算出目标输入转速(Nint)。如果目标输入转速低于下限值(NinL ),将目标输入转速重新设定为下限值(NinL)。 作为包括上述步骤的控制的结果,在车辆停止之前,速比γ变得相对较高。 因此,即使速比变化率低,在车辆停止前也可以使速比(γ)达到或接近最大值(gammamax)。 因此,可以抑制由致动器的工作流体的低温引起的速度比变化率的降低。

    Control apparatus of vehicle equipped with a continuously variable transmission and control method of the same
    7.
    发明授权
    Control apparatus of vehicle equipped with a continuously variable transmission and control method of the same 有权
    配备有无级变速器和控制方法的车辆控制装置

    公开(公告)号:US06345221B2

    公开(公告)日:2002-02-05

    申请号:US09756270

    申请日:2001-01-09

    IPC分类号: B60K1704

    摘要: A control apparatus is provided in a vehicle equipped with a power source and a continuously variable transmission. The continuously variable transmission is connected to the power source. The control apparatus includes a target power determinator, a target revolutions determinator, a determining device, a setting device and a target torque determinator. The target power determinator determines a target power of the power source. The target revolutions determinator determines target revolutions on the basis of the target power. The determining device determines whether the vehicle is a transient driving condition or not. The setting device sets the target revolutions as setting revolutions when the determining device determines that the vehicle is not in the transient driving condition. The setting device sets revolutions different from the target revolutions as the setting revolutions when the determining device determines that the vehicle is in a transient driving condition. The target torque determinator determines a target output torque of the power source on the basis of the target power and the setting revolutions. Since the vehicle is controlled in accordance with the driving condition of the vehicle, a jerky feeling can be avoided and ride quality or drivability of the vehicle is prevented from being deteriorated, even when the vehicle is in a transient driving condition.

    摘要翻译: 在配备有电源和无级变速器的车辆中设置有控制装置。 无级变速器连接到电源。 控制装置包括目标功率确定器,目标转速确定器,确定装置,设定装置和目标转矩确定器。 目标功率确定器确定电源的目标功率。 目标革命决定者根据目标力确定目标转速。 确定装置确定车辆是否是暂时驾驶状况。 当确定装置确定车辆不处于暂时驾驶状态时,设定装置将目标转数设定为设定转速。 当确定装置确定车辆处于暂时驾驶状态时,设定装置将与目标转数不同的转数设定为设定转速。 目标转矩确定器基于目标功率和设定转数来确定电源的目标输出转矩。 由于根据车辆的驾驶状况来控制车辆,所以即使在车辆处于暂时驾驶状态的情况下,也可以避免抖动的感觉,并且防止车辆的乘坐质量或驾驶性能劣化。

    Transmission shift control apparatus arranged to perform compulsory shift-down action of continuously variable transmission
    8.
    发明授权
    Transmission shift control apparatus arranged to perform compulsory shift-down action of continuously variable transmission 有权
    布置成执行无级变速器的强制换档动作的变速器变速控制装置

    公开(公告)号:US06672981B2

    公开(公告)日:2004-01-06

    申请号:US09988351

    申请日:2001-11-19

    IPC分类号: F16H6300

    摘要: A shift control apparatus for controlling a continuously variable transmission device including a continuously variable transmission mechanism having rotary elements and operable to transmit a rotary motion of a drive power source of an automotive vehicle to a drive wheel of the automotive vehicle, such that a speed ratio of said mechanism is continuously variable, the shift control apparatus includes a power-transmission-state determining device for determining whether the mechanism is placed in a non-power-transmitting state, a speed-ratio determining device for determining whether the mechanism is placed in a lowest-speed position, a rotation-stop detecting device for determining whether the rotary elements are at rest, and a compulsory-speed-ratio-change implementing device for effecting a compulsory shift-down action of the mechanism toward the lowest-speed position when the mechanism is placed in the non-power-transmitting state while the mechanism is not placed in the lowest-speed position and while the rotary elements of the mechanism are at rest.

    摘要翻译: 一种变速控制装置,用于控制包括具有旋转元件的无级变速机构的无级变速传动装置,其可操作以将机动车辆的驱动动力源的旋转运动传递到机动车辆的驱动轮,使得速比 所述机构是连续变化的,所述变速控制装置包括用于判断机构是否处于非动力传递状态的动力传递状态判定装置,用于判定机构是否被置于 最低速位置,用于确定旋转元件是否处于静止状态的旋转停止检测装置,以及用于实现机构朝向最低速位置的强制下降动作的强制变速比变更实施装置 当该机构处于非发电状态时,该机构未被置于最低端 并且机构的旋转元件处于静止状态。

    Control apparatus for continuously variable transmission
    10.
    发明授权
    Control apparatus for continuously variable transmission 有权
    无级变速器控制装置

    公开(公告)号:US06813551B2

    公开(公告)日:2004-11-02

    申请号:US10355144

    申请日:2003-01-31

    IPC分类号: B60K4112

    CPC分类号: F16H61/66259

    摘要: Estimated change in operating fluid volume within a primary fluid chamber over a predetermined period of time during gear change operation is calculated using a physical model. On the other hand, detected change in operating fluid volume within the primary fluid chamber over this predetermined period of time is calculated. Then the deviation of the detected change from the estimated change is calculated, and learning and correction of the difference between the characteristic stored in an electronic control unit and that of an actual flow control unit are performed based on this deviation.

    摘要翻译: 使用物理模型计算在变速操作期间在预定时间段内的主流体室内的工作流体体积的估计变化。 另一方面,计算出在该预定时间段内检测到主流体室内的工作流体体积的变化。 然后计算检测到的变化与估计变化的偏差,并且基于该偏差来执行存储在电子控制单元中的特性与实际流量控制单元之间的差异的学习和校正。