Control apparatus and method for automatic transmission
    1.
    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:US07044890B2

    公开(公告)日:2006-05-16

    申请号:US10721465

    申请日:2003-11-26

    IPC分类号: B60K41/02 B60K41/20 B60K41/26

    摘要: A control apparatus for an automatic transmission, which executes a neutral control by which an input clutch that transmits driving force from a driving source to the automatic transmission is released when conditions, being i) a shift lever is in a position corresponding to a forward speed range, ii) an accelerator operation is not being performed, iii) a brake operation is being performed, and iv) a vehicle speed is equal to, or less than, a predetermined vehicle speed, are fulfilled, is provided a controller which detects a road gradient and outputs a command to release the input clutch when i) the detected road gradient is equal to, or less than, a predetermined value, and ii) the conditions are fulfilled. After the command has been output, the controller compares the detected road gradient and the predetermined value and cancels the output of the command if the road gradient is greater than the predetermined value. Accordingly, fuel efficiency is able to be further improved during the neutral control.

    摘要翻译: 一种用于自动变速器的控制装置,其执行空档控制,通过该空档控制将从驱动源向自动变速器传递驱动力的输入离合器释放,当条件为i)变速杆位于对应于前进速度 范围,ii)没有执行加速器操作,iii)正在执行制动操作,以及iv)车速等于或小于预定车速满足时,控制器检测到 道路坡度,并且当i)检测到的道路坡度等于或小于预定值时,输出释放输入离合器的命令,以及ii)满足条件。 在输出命令之后,控制器比较所检测的道路坡度和预定值,并且如果道路坡度大于预定值,则取消该命令的输出。 因此,在中性控制期间能够进一步提高燃料效率。

    Transmission shift control apparatus arranged to perform compulsory shift-down action of continuously variable transmission
    4.
    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 and method for continuously variable transmissions
    7.
    发明授权
    Control apparatus and method for continuously variable transmissions 有权
    用于无级变速器的控制装置和方法

    公开(公告)号:US08105191B2

    公开(公告)日:2012-01-31

    申请号:US11808545

    申请日:2007-06-11

    IPC分类号: F16H61/66

    摘要: The line hydraulic pressure setting portion sets the line hydraulic pressure PL, which is the base pressure for the required shift control pressure Pin and the required belt clamping pressure Pd, based on the higher of the required pressures Pin and Pd. At this time, if the continuously variable transmission is to be shifted up, the required Pin calculating portion calculates the required shift control pressure Pin based on one of the target speed ratio γ* and the actual speed ratio γ with which the required shift pressure Pv is calculated to be higher than with the other. As such, the required shift control pressure Pin is set to the minimum necessary level for shifting up the continuously variable transmission and the line hydraulic pressure PL is appropriately set to a level for obtaining the required shift control pressure Pin.

    摘要翻译: 线路液压设定部基于所需的压力Pin和Pd的较高值,设定作为所需的换档控制压力Pin的基准压力和所需的带夹紧压力Pd的直线液压PL。 此时,如果无级变速器向上移动,则所需的销运算部根据目标转速​​比γ*和实际变速比γ之一计算出所需变速控制压力Pin,所需变速压力Pv 被计算为高于另一个。 因此,所需的换档控制压力Pin被设定为使无级变速器变速的最小必要水平,并且线路液压PL被适当地设定为获得所需的换档控制压力Pin的水平。

    Shift control system and shift control method for continuously variable transmission
    8.
    发明授权
    Shift control system and shift control method for continuously variable transmission 失效
    变速控制系统和变速控制方法

    公开(公告)号:US07654935B2

    公开(公告)日:2010-02-02

    申请号:US11808552

    申请日:2007-06-11

    IPC分类号: F16H61/00

    摘要: A maximum flow calculating unit calculates a maximum amount of hydraulic fluid that can flow into or out of an input-side hydraulic cylinder when a shift control command signal is set to a reference DUTY value, based on an estimated valve pressure difference calculated by an estimated pressure difference calculating unit, and a post-guard target sheave position setting unit performs a guard process for restricting the amount of change of the sheave position, using a guard value calculated by a guard value calculating unit based on the maximum flow amount, so as to set a post-guard target sheave position. Since the thus set target sheave position does not undergo excessive large changes nor excessively small changes during shifting, a target value for shifting is set so that a feedforward controlled variable determined based on the amount of change of the target sheave position becomes an appropriate value.

    摘要翻译: 最大流量计算单元基于由估计的阀值压力差计算出的推定阀压差,计算当变速控制指令信号被设定为基准DUTY值时可以流入或流出输入侧液压缸的液压流体的最大量 压力差计算单元和后保护目标滑轮位置设置单元使用由保护值计算单元基于最大流量计算的保护值来执行用于限制滑轮位置的变化量的保护处理,以便 设置后卫目标滑轮位置。 由于这样设定的目标滑轮位置在变速期间不会发生过大的变化,也不会发生过小的变化,所以设定用于换档的目标值,使得基于目标滑轮位置的变化量确定的前馈控制变量成为适当的值。

    Shift control system and shift control method for continuously variable transmission
    9.
    发明申请
    Shift control system and shift control method for continuously variable transmission 失效
    变速控制系统和变速控制方法

    公开(公告)号:US20080009390A1

    公开(公告)日:2008-01-10

    申请号:US11808552

    申请日:2007-06-11

    IPC分类号: F16H61/00

    摘要: A maximum flow calculating unit calculates a maximum amount of hydraulic fluid that can flow into or out of an input-side hydraulic cylinder when a shift control command signal is set to a reference DUTY value, based on an estimated valve pressure difference calculated by an estimated pressure difference calculating unit, and a post-guard target sheave position setting unit performs a guard process for restricting the amount of change of the sheave position, using a guard value calculated by a guard value calculating unit based on the maximum flow amount, so as to set a post-guard target sheave position. Since the thus set target sheave position does not undergo excessive large changes nor excessively small changes during shifting, a target value for shifting is set so that a feedforward controlled variable determined based on the amount of change of the target sheave position becomes an appropriate value.

    摘要翻译: 最大流量计算单元基于由估计的阀值压力差计算出的推定阀压差,计算当变速控制指令信号被设定为基准DUTY值时可以流入或流出输入侧液压缸的液压流体的最大量 压力差计算单元和后保护目标滑轮位置设置单元使用由保护值计算单元基于最大流量计算的保护值来执行用于限制滑轮位置的变化量的保护处理,以便 设置后卫目标滑轮位置。 由于这样设定的目标滑轮位置在变速期间不会发生过大的变化,也不会发生过小的变化,所以设定用于换档的目标值,使得基于目标滑轮位置的变化量确定的前馈控制变量成为适当的值。

    Control apparatus and method for continuously variable Transmissions
    10.
    发明申请
    Control apparatus and method for continuously variable Transmissions 有权
    无级变速器控制装置及方法

    公开(公告)号:US20070298918A1

    公开(公告)日:2007-12-27

    申请号:US11808545

    申请日:2007-06-11

    IPC分类号: F16H61/66 F16H61/38

    摘要: The line hydraulic pressure setting portion sets the line hydraulic pressure PL, which is the base pressure for the required shift control pressure Pin and the required belt clamping pressure Pd, based on the higher of the required pressures Pin and Pd. At this time, if the continuously variable transmission is to be shifted up, the required Pin calculating portion calculates the required shift control pressure Pin based on one of the target speed ratio γ* and the actual speed ratio γ with which the required shift pressure Pv is calculated to be higher than with the other. As such, the required shift control pressure Pin is set to the minimum necessary level for shifting up the continuously variable transmission and the line hydraulic pressure PL is appropriately set to a level for obtaining the required shift control pressure Pin.

    摘要翻译: 线路液压设定部基于所需压力的较高,设定作为所需的换档控制压力Pin的基准压力和所需的带夹紧压力Pd的线路液压P L L, 和Pd。 此时,如果无级变速器向上移动,则所需的针运算部根据目标速度比γ*和实际变速比γ之一计算所需的变速控制压力Pin,所需变速压力Pv 被计算为高于另一个。 因此,所需的换档控制压力Pin被设定为使无级变速器变速的最小必要水平,并且线路液压P L L被适当地设定为用于获得所需的换档控制压力的水平 销。