Hydraulic control system for automatic transmission
    91.
    发明授权
    Hydraulic control system for automatic transmission 失效
    自动变速器液压控制系统

    公开(公告)号:US5168777A

    公开(公告)日:1992-12-08

    申请号:US680732

    申请日:1991-04-05

    摘要: The rotational speed of an engine Ne and a drum rotational speed Nt of a clutch Cl are compared against each other to determine a power on/off. For a 2.fwdarw.3 and a 2.fwdarw.4 shift in the power off condition, a timing solenoid SL5 is turned on (duty cycle of 100%) to accelerate the termination of a preceding speed range, thus increasing a time delay between such termination and the activation of a new speed range to be established. For other shifts, a time difference between the termination of a preceding speed range and the activation of a new speed range to be established is adjusted, by energizing the solenoid SL5 in accordance with the throttle opening .theta. and the vehicle speed No such that SL5 is energized with a high duty cycle for a longer .theta. and with a low duty cycle for a smaller .theta..

    摘要翻译: 将离合器C1的发动机Ne的旋转速度和转鼓旋转速度Nt进行比较,以确定电源的开/关。 对于断电状态下的2-> 3和2-> 4移位,定时螺线管SL5导通(占空比为100%),以加速前一速度范围的终止,从而增加这种时间延迟 终止并激活新的速度范围。 对于其他换档,通过根据节气门开度θ和车速No激励螺线管SL5来调节前一速度范围的终止和要建立的新速度范围的启动之间的时间差,使得SL5为 以更长的θ为高占空比激励,对于较小的theta具有低占空比。

    Electronically controlled clutch engagement speed correcting for an
automatic transmission system
    92.
    发明授权
    Electronically controlled clutch engagement speed correcting for an automatic transmission system 失效
    用于自动变速器系统的电子离合器接合速度校正

    公开(公告)号:US5109967A

    公开(公告)日:1992-05-05

    申请号:US498673

    申请日:1990-03-26

    摘要: An electronically controlled automatic transmission system including an automatic transmission having a plurality of clutches and brakes activated by application of a fluid pressure to change the gear ratio by engagement and disengagement of the clutches and brakes, a fluid pressure switching device for controlling the application of the fluid pressure to the clutches and brakes, and an electronic controller for changing the engagement and disengagement of the clutches and brakes by driving the fluid pressure switching device in accordance with the running condition of the vehicle, the electronic controller also controlling the speed of engagement of a clutch or brake which is to be engaged. The electronic controller includes a torque sensor for detecting the torque of the output shaft of the automatic transmission, and an engagement speed correcting device for correcting the speed of engagement of a clutch or brake which is to be engaged on the basis of the detected torque. If the condition of double engagement is judged to be improper in the process of gear-shifting, the speed of engagement of the clutch or brake to be engaged is automatically corrected so that the condition of double engagement is shifted to an optimal one by feedback control. Thus, the shock applied to the vehicle during a gear-shifting operation is reduced.

    摘要翻译: 一种电子控制的自动变速器系统,包括具有多个离合器和制动器的自动变速器,所述离合器和制动器通过施加流体压力而被激活,以通过离合器和制动器的接合和分离改变变速比;流体压力切换装置, 对离合器和制动器的流体压力,以及电子控制器,用于通过根据车辆的运行状况驱动流体压力切换装置来改变离合器和制动器的接合和分离,电子控制器还控制接合速度 要接合的离合器或制动器。 电子控制器包括:用于检测自动变速器的输出轴的转矩的转矩传感器;以及接合速度校正装置,用于基于检测到的转矩来校正待接合的离合器或制动器的接合速度。 如果在换档过程中判断为双重接合的状况不正确,则自动修正要接合的离合器或制动器的接合速度,以便通过反馈控制将双重接合的状态转移到最佳状态 。 因此,在变速操作期间施加到车辆的冲击减小。

    Motor vehicle automatic transmission
    93.
    发明授权
    Motor vehicle automatic transmission 失效
    电动汽车自动变速箱

    公开(公告)号:US5078663A

    公开(公告)日:1992-01-07

    申请号:US583322

    申请日:1990-09-17

    申请人: Peter Meffert

    发明人: Peter Meffert

    IPC分类号: F16H3/66 F16H47/08

    摘要: A shifting arrangement of an overdrive position of a fourth gear is connected behind a shifting arrangement of a Simpson gear set of a first gear and/or a second gear. The connection transforms a conventional four-speed automatic transmission into a five-speed automatic transmission or a six-speed automatic transmission.

    摘要翻译: 第四档的过驱动位置的变速装置连接在第一档和/或第二档的辛普森齿轮组的变速装置的后面。 该连接将传统的四速自动变速器转换为五速自动变速器或六速自动变速器。

    Double transition upshift control in an automatic transmission
    94.
    发明授权
    Double transition upshift control in an automatic transmission 失效
    自动变速器双转档升档控制

    公开(公告)号:US5014573A

    公开(公告)日:1991-05-14

    申请号:US448452

    申请日:1989-12-11

    摘要: In an automatic transmission, a double transition upshift to a target range requires the release of two off-going clutches and the engagement of two on-coming clutches. The shift is made in two stages. The first stage involves a first off-going clutch and a first on-coming clutch, and begins a shift to a third range having a speed ratio lower than the target range so that input speed is decreased and power is supplied throughout the shift. The speed decrease is managed by a closed-loop control of the first on-coming clutch until the clutch reaches a synchronous speed for the target range. The closed-loop control parameter is on-coming clutch slip speed which is controlled to a calculated slip speed profile. The profile has a first steep slope and a final less steep slope so that the actual slip can smoothly go to zero in a given time period. When near synchronous speed is reached, the second off-going clutch begins to release and at the end of the closed-loop control the second on-coming clutch is applied to complete the shift to the target range.

    摘要翻译: 在自动变速器中,双档升档到目标档位需要释放两个离合器和两个前进离合器的接合。 这个转变分为两个阶段。 第一级涉及第一离合离合器和第一前进离合器,并且开始移动到具有低于目标范围的速度比的第三范围,使得输入速度降低并且在整个换档期间提供动力。 速度降低由第一接合离合器的闭环控制来管理,直到离合器达到目标范围的同步速度为止。 闭环控制参数是即将到来的离合器滑差速度,其被控制到计算的滑移速度曲线。 轮廓具有第一陡坡和最后较不陡的坡度,使得实际滑移在给定时间段内可以平稳地变为零。 当达到接近同步速度时,第二离合器离合器开始释放,并且在闭环控制结束时,施加第二接通离合器以完成到目标范围的换档。

    Transmission control system
    95.
    发明授权
    Transmission control system 失效
    变速箱控制系统

    公开(公告)号:US4945482A

    公开(公告)日:1990-07-31

    申请号:US257149

    申请日:1988-10-12

    摘要: A transmission control system for controlling a transmission. The system has a main transmission with a speed changing mechanism and an output shaft, a substransmission connected to the output shaft, and a control system for receiving outputs from a number of sensors which sense the running state of the vehicle. The control system itself has two outputs, there being two separate hydraulic controls connected to the two system outputs, respectively. The two hydraulic controls control the speed changing mechanisms of the main and subtransmissions, respectively. Also provided is a hydraulic pressure source which supplies a working fluid to the two hydraulic controls. The control system determines whether the main and subtransmissions are in a transient period of the speed changing operation and, as long as one of the two transmissions is in the transient period, inhibits the speed changing operation of the other transmission.

    摘要翻译: 一种用于控制传输的传输控制系统。 该系统具有主变速器,其具有变速机构和输出轴,连接到输出轴的变速器,以及用于接收来自感测车辆行驶状态的多个传感器的输出的控制系统。 控制系统本身具有两个输出,分别连接两个系统输出的两个单独的液压控制。 两个液压控制器分别控制主变速器和变速器的变速机构。 还提供了一种将工作流体供应到两个液压控制器的液压源。 控制系统确定主变速器和副变速器是否处于变速操作的过渡期间,并且只要两个变速器之一处于过渡期间,则禁止另一变速器的变速操作。

    SHIFT CONTROL DEVICE AND SHIFT CONTROL METHOD FOR VEHICLE
    98.
    发明申请
    SHIFT CONTROL DEVICE AND SHIFT CONTROL METHOD FOR VEHICLE 有权
    车辆的变速控制装置和变速控制方法

    公开(公告)号:US20150260280A1

    公开(公告)日:2015-09-17

    申请号:US14432285

    申请日:2014-01-03

    摘要: Torque shares that express an exchange of torque are set as a constraint condition of an equation of motion of an automatic transmission, so it is suitable to control an exchange of torque between engagement devices, which is difficult in shift control, and it is possible to solve the equation of motion. In other words, it is possible to handle any shift pattern with the use of a predetermined shift model. Furthermore, at the time of a shift in which two elements are released and two elements are engaged, a first shift and a second shift in each of which one element is released and one element is engaged are carried out, so three control operation amounts are used in each of the first shift and the second shift, with the result that it is possible to solve the equation of motion.

    摘要翻译: 表示扭矩交换的扭矩份额被设定为自动变速器的运动方程的约束条件,因此适于控制接合装置之间的扭矩交换,这在换档控制中是困难的,并且可以 解决运动方程。 换句话说,可以使用预定的换档模型来处理任何换档模式。 此外,在两个元件被释放并且两个元件接合的换档时,执行其中一个元件被释放并且一个元件接合的每个移位和第二移位,因此三个控制操作量是 在第一移位和第二移位中的每一个中使用,结果可以解决运动方程。

    Method for the operation of a drivetrain
    100.
    发明授权
    Method for the operation of a drivetrain 有权
    传动系的运行方法

    公开(公告)号:US08311712B2

    公开(公告)日:2012-11-13

    申请号:US13150748

    申请日:2011-06-01

    IPC分类号: F16H61/00

    摘要: A method of operating of a drivetrain, having at least a drive motor and an automatic transmission with at least five shift elements, to improve a shift speed such that during a first upshift or a first downshift, at least one required shift element is prepared such that, when a synchronization point is reached, the successive upshift or the successive downshift can be immediately carried out. The method comprises the steps of requiring, at most, two of the at least five shift elements be disengaged and a remainder of the shift elements be disengaged for each gear for transferring one of torque and force; and one of increasing and decreasing a torque of the drive motor, relative to a torque of the drive motor derived from a driver's wish, during one of the first upshift or downshift and the successive upshift or downshift to assist with an overlapped implementation of the successive upshifts or the successive downshifts.

    摘要翻译: 一种操作传动系统的方法,至少具有驱动马达和具有至少五个换挡元件的自动变速器,以提高换挡速度,使得在第一升档或第一降档期间,准备至少一个所需的换档元件, 当达到同步点时,可以立即执行连续升档或连续降档。 所述方法包括以下步骤:至少要求所述至少五个变速元件中的两个分离,并且为每个齿轮分离剩余的变速元件以传递转矩和力之一; 以及在第一升档或降档之间以及相继的升档或降档之间相对于来自驾驶员的愿望的驱动马达的扭矩相对于驱动马达的转矩的增加和减小之一,以辅助连续的 升档或连续降档。