Control apparatus and method for automatic transmission
    81.
    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

    Abstract: 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.

    Abstract translation: 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。

    CONTINUOUSLY VARIABLE TRANSMISSION AND SHIFT CONTROL METHOD
    87.
    发明申请
    CONTINUOUSLY VARIABLE TRANSMISSION AND SHIFT CONTROL METHOD 有权
    连续可变传输和移位控制方法

    公开(公告)号:US20120059556A1

    公开(公告)日:2012-03-08

    申请号:US13216986

    申请日:2011-08-24

    Abstract: The shift control unit shifts the sub-transmission mechanism while changing the speed ratio of the variator in response to a change in the speed ratio of the sub-transmission mechanism so that the through speed ratio does not change after the through speed ratio is caused to reach the final through speed ratio by changing only the speed ratio of the variator if the speed ratio corresponding to the shift instruction from the driver is between a first speed ratio at which the sub-transmission mechanism is in the second gear position at the high speed side and the speed ratio of the variator is lowest and a second speed ratio at which the sub-transmission mechanism is in the first gear position at the low speed side and the speed ratio of the variator is highest when the manual mode is selected.

    Abstract translation: 变速控制单元根据副变速机构的变速比的变化而改变变速器的变速比,使副变速机构移动,从而在通过变速比达到后,通过变速比不变化 如果与来自驾驶员的换档指令对应的速度比在副传动机构处于高速的第二档位的第一速比之间,则仅通过改变变速器的速比来达到最终的通过速比 并且当选择手动模式时,变速器的变速比最低,副变速机构处于低速侧的第一档位的第二速比和变速器的变速比最高。

    SHIFT CONTROL OF AUTOMATIC TRANSMISSION
    88.
    发明申请
    SHIFT CONTROL OF AUTOMATIC TRANSMISSION 有权
    自动变速箱换档控制

    公开(公告)号:US20110015840A1

    公开(公告)日:2011-01-20

    申请号:US12836172

    申请日:2010-07-14

    Abstract: A subtransmission mechanism 30 comprises a Ravigneaux planetary gear mechanism 31, a Low brake 32 and a High clutch 33, shifts between a first speed gear position in which the Low brake 32 is engaged whereas the High clutch 33 is disengaged and a second speed gear position in which the Low brake 32 is disengaged and the High clutch 33 is engaged. A minute slip is caused at the Low brake 32 and then terminated by engaging the High clutch 33. A value representing the engaging state variation such as an engaging time period and/or an engaging speed of the High clutch 33 is learned and the pressure of oil supplied during the engaging operation of the High clutch 33 is corrected based upon the learned value, thereby assuring a smooth shift operation by compensating for any inconsistency in the torque transmission characteristics of the High clutch 33.

    Abstract translation: 副传动机构30包括:Ravigneaux行星齿轮机构31,低速制动器32和高速离合器33,在低速制动器32接合的第一速度档位和高速离合器33脱离的第一档位与第二档位 其中低速制动器32分离并且高速离合器33接合。 在低速制动器32处引起微小的滑动,然后通过接合高速离合器33而终止。表示接合状态变化的值,例如接合时间段和/或高速离合器33的接合速度,并且压力 基于该学习值来校正在高速离合器33的接合操作期间供应的油,从而通过补偿高速离合器33的转矩传递特性的任何不一致来确保平滑的换档操作。

    SHIFT CONTROL OF CONTINUOUSLY VARIABLE TRANSMISSION
    90.
    发明申请
    SHIFT CONTROL OF CONTINUOUSLY VARIABLE TRANSMISSION 有权
    连续可变传输的变换控制

    公开(公告)号:US20110015838A1

    公开(公告)日:2011-01-20

    申请号:US12837129

    申请日:2010-07-15

    Abstract: A continuously variable transmission 4 for a vehicle includes a variator 20 that modifies a speed ratio continuously and a subtransmission mechanism 30 that is connected in series to the variator 20 and applies a first speed and a second speed, which is higher than the first speed, selectively. When the vehicle is running under a low load/high speed upshift condition having a lower load or a higher speed than a normal upshift condition, the subtransmission mechanism 30 is upshifted from the first speed to the second speed at a lower vehicle speed than under the normal upshift condition, and as a result, both rotation variation in an internal combustion engine 1 accompanying upshifting of the subtransmission mechanism 30 and an increase in a fuel consumption amount of the internal combustion engine 1 due to the shift operation in the continuously variable transmission 4 are suppressed.

    Abstract translation: 用于车辆的无级变速器4包括连续地改变速比的变速器20和与变速器20串联连接并施加高于第一速度的第一速度和第二速度的副变速器机构30, 选择性地。 当车辆在比正常升档条件更低的负载或更高的速度的低负载/高速升档条件下运行时,副变速器机构30以比在下方的速度低的车速从第一速度升高到第二速度 正常的升档状态,结果是伴随着副变速机构30的升档以及由于无级变速器4的变速操作引起的内燃机1的燃料消耗量的增加,内燃机1的旋转变化 被压制。

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