Shift control system for continuously variable transmission
    42.
    发明授权
    Shift control system for continuously variable transmission 失效
    变速控制系统,用于无级变速器

    公开(公告)号:US06513610B2

    公开(公告)日:2003-02-04

    申请号:US09921273

    申请日:2001-08-02

    IPC分类号: B60K3110

    摘要: A shift control system for a continuously variable transmission CVT) has a gear ratio controller for controlling the gear ratio of CVT by determining a target gear ratio from a drive point determined on the basis of at least a throttle opening and a vehicle speed. The shift control system also has a vehicle distance controller for maintaining a proper vehicle distance by controlling the throttle opening of an engine. A shift speed control device provided in the gear ratio controller increases the shift speed from the shift speed established at the time the vehicle distance is not controlled by the vehicle distance controller, when the vehicle distance is controlled by the vehicle distance controller.

    摘要翻译: 用于无级变速器CVT的变速控制系统)具有齿轮比控制器,用于通过基于至少节气门开度和车速确定的驱动点来确定目标齿轮比来控制CVT的齿轮比。 变速控制系统还具有车辆距离控制器,用于通过控制发动机的节气门开度来保持适当的车辆距离。 设置在变速比控制器中的变速控制装置在车辆距离控制器控制车辆距离时,从车辆距离控制器不控制车辆距离时建立的变速速度增大变速速度。

    Speed change controller for automatic transmission
    43.
    发明授权
    Speed change controller for automatic transmission 失效
    变速控制器,用于自动变速器

    公开(公告)号:US06246940B1

    公开(公告)日:2001-06-12

    申请号:US09111594

    申请日:1998-07-07

    IPC分类号: F16H900

    摘要: In a vehicle transmission wherein plural speed change ratios from a largest speed change ratio to a smallest speed change ratio are selectively applied according to a command input by a driver, a real speed change ratio of the transmission is detected. It is determined whether or not the transmission is performing a shift-down based on the input command and the real speed change ratio. A shift-down limit speed change ratio is determined based on the speed change ratio before the shift-down operation is performed, and when the engine brake of the vehicle is operating, the transmission is controlled so as not to apply a speed change ratio larger than this shift-down limit speed change ratio. Due to this, the driver does not experience an excessive engine braking sensation even when an extreme speed change command is issued.

    摘要翻译: 在根据驾驶员输入的命令选择性地应用从最大变速比到最小变速比的多个变速比的车辆变速器中,检测变速器的实际变速比。 基于输入命令和实际变速比来确定变速器是否正在进行减速。 基于在进行减速操作之前的变速比来确定减速极限转速变化率,并且当车辆的发动机制动器运行时,变速器被控制为不应用变速比更大 比这个减速限制变速比。 由此,即使发出极端的变速指令,驾驶员也不会发生过大的发动机制动感。

    Speed change ratio controller for continuously variable transmission
    44.
    发明授权

    公开(公告)号:US06205387B1

    公开(公告)日:2001-03-20

    申请号:US09110253

    申请日:1998-07-06

    申请人: Tatsuo Ochiai

    发明人: Tatsuo Ochiai

    IPC分类号: G06F1700

    摘要: In a vehicle provided with a continuously variable transmission, when a target speed change ratio sharply decreases due to the release of an accelerator pedal from depression, a real speed change ratio of the continuously variable transmission which follows the target speed change ratio may undershoot the target speed change ratio. Due to this undershoot, the engine rotation speed may temporarily fall below a permitted level. Therefore, the variation rate of the speed change ratio of the transmission is decreased in the terminal phase of the shifting process of the speed change ratio.

    摘要翻译: 在设置有无级变速器的车辆中,当目标变速比由于加速器踏板从下压而释放而急剧下降时,跟随目标变速比的无级变速器的实际变速比可能会下降目标 变速比。 由于这种下冲,发动机转速可能暂时低于允许的水平。 因此,在变速比的变速过程的终点阶段,变速器的变速比的变化率降低。

    Control apparatus and method for automatic transmission
    48.
    发明授权
    Control apparatus and method for automatic transmission 有权
    自动变速箱控制装置及方法

    公开(公告)号:US08364359B2

    公开(公告)日:2013-01-29

    申请号:US12712454

    申请日:2010-02-25

    IPC分类号: G06F7/00 G06F17/00

    摘要: In control apparatus and method for an automatic transmission, a gear shift state of a stepwise variable transmission mechanism is controlled to a target gear shift state by releasing a first engagement section according to a reduction in a capacity of the first engagement section and, simultaneously, by engaging a second engagement section according to an increase in the capacity of the second engagement section, in accordance with a torque inputted to the stepwise variable transmission mechanism and, during an inertia phase, either one of the first and second engagement sections functions as a gear shift state control side engagement section and the capacity of a gear shift state non-control side engagement section which is the other engagement section is increased when determining that it is impossible to make the gear shift state follow up the target gear shift state at the gear shift state control side engagement section.

    摘要翻译: 在自动变速器的控制装置和方法中,通过根据第一接合部的容量的减小来释放第一接合部,将逐级变速传动机构的变速状态控制为目标变速状态, 通过根据输入到阶梯式变速机构的扭矩,根据第二接合部的容量的增加来接合第二接合部,并且在惯性阶段期间,第一和第二接合部中的任一个作为 换档状态控制侧接合部和作为另一接合部的变速状态非控制侧接合部的容量在判定为不能使变速状态跟随目标变速状态时增加 换挡状态控制侧接合部。