Transmission shift control system and method
    141.
    发明授权
    Transmission shift control system and method 有权
    变速箱换档控制系统及方法

    公开(公告)号:US6002976A

    公开(公告)日:1999-12-14

    申请号:US168785

    申请日:1998-10-08

    摘要: A vehicle power shift transmission (PST) is controlled by a transmission control system which implements a control method. The PST is part of the driveline of the vehicle and is shifted by an actuating mechanism. The driveline includes an engine, the PST, a clutch, a synchronized shift transmission that can be shifted by a shift lever and driven vehicle wheels. In order to simplify the operator's tasks, during the shift of the synchronized shift transmission the gear of the PST is automatically shifted so that the resulting difference in the gear ratio of the complete transmission before and after the shift is minimized. The gear of the PST is selected and shifted automatically so that the rotational speeds on both sides of the clutch differ as little as possible.

    摘要翻译: 车辆动力换档变速箱(PST)由实现控制方式的变速器控制系统控制。 PST是车辆的传动系统的一部分,并被致动机构移动。 传动系统包括发动机,PST,离合器,可由变速杆和从动车轮转动的同步变速传动装置。 为了简化操作者的任务,在同步变速传动的换档期间,PST的档位被自动移位,使得在变速前后的完整变速器的齿轮比的差异最小化。 自动选择和移位PST的齿轮,使得离合器两侧的转速尽可能小。

    Control system and method for vehicle with continuously variable
transmission
    150.
    发明授权
    Control system and method for vehicle with continuously variable transmission 失效
    具有无级变速器的车辆控制系统和方法

    公开(公告)号:US5790968A

    公开(公告)日:1998-08-04

    申请号:US525745

    申请日:1995-10-02

    摘要: A steady state transmission ratio Base i is computed from a vehicle speed VPS and a throttle opening TVO (S1). An output shaft revolution speed No of the transmission and a current transmission ratio i are detected (S2, S3). A coefficient TTINR is computed from a difference or a ratio or the like between the steady state transmission ratio Base i and the current transmission ratio i (S4). Then, from the current transmission ratio i, the output shaft revolution speed No and the coefficient TTINR, a shift speed SV=TTINR/(IE.times.i.times.No) is computed (S5). Then a shift control is performed in accordance with the shift speed SV so as to approach to the steady state transmission ratio Base i (S6.about.S9). Thus, the shift speed during shifting in a continuously variable transmission is controlled in consideration of inertia torque.

    摘要翻译: PCT No.PCT / JP95 / 00308 Sec。 371 1995年10月2日日期 102(e)1995年10月2日日期PCT提交1995年2月28日PCT公布。 WO95 / 23302 PCT公开号 日期1995年8月31日稳态传动比基于从车速VPS和节气门开度TVO(S1)计算基数i。 检测输出轴转速No和变速比i(S2,S3)。 根据稳态传输比Base i和当前传输比i(S4)之间的差或比等来计算系数TTINR。 然后,根据当前的传动比i,计算输出轴转速No和系数TTINR,移位速度SV = TTINR /(IExixNo)(S5)。 然后根据换档速度SV进行换挡控制,以接近稳态传动比基准i(S6差值S9)。 因此,考虑到惯性转矩来控制无级变速器的变速时的变速。