Shift control method for automatic transmissions
    71.
    发明公开
    Shift control method for automatic transmissions 失效
    用于自动变速器的切换控制方法

    公开(公告)号:EP0849504A3

    公开(公告)日:1999-06-16

    申请号:EP97122201.3

    申请日:1997-12-16

    发明人: Yu, Pyung Hwan

    IPC分类号: F16H61/06

    摘要: Disclosed is a shift control method for automatic transmissions. The shift control method includes the steps of determining if all conditions for performing closed-throttle upshifting are met after information of whether a vehicle is in a driving state is read; establishing an initial duty value, first and second ramps for performing duty control, and duty signal output times, all from a closed-throttle upshifting map data, and determining a duty compensating value from a hydraulic pressure compensating map table; adding the initial duty value and duty compensating value to calculate an initial duty control value, and outputting the initial duty control value as ramps to perform shifting; subtracting engine RPM from turbine RPM and determining whether the resulting value is equal to or less than a predetermined critical value in a state where shifting is being performed using the initial duty control value; adding a predetermined compensating duty value to the initial duty control value to increase duty control, then performing duty control to the determined ramps and shifting to a target shift range; determining if the conditions for open-throttle upshifting are met; determining if upshifting is completed; determining if a final duty control hold time has exceeded a critical hold time; and setting the duty value to "0" to maintain the present state of reacting and friction elements.

    Close-loop adaptive fuzzy logic hydraulic pressure control system for an automatic transmission
    73.
    发明公开
    Close-loop adaptive fuzzy logic hydraulic pressure control system for an automatic transmission 失效
    自适应闭环控制的用于自动变速器的模糊逻辑控制的压力

    公开(公告)号:EP0870953A1

    公开(公告)日:1998-10-14

    申请号:EP98302700.4

    申请日:1998-04-07

    IPC分类号: F16H61/06

    摘要: A self-organising fuzzy logic controller develops an adaptive pressure adder that modifies the magnitude of pressure supplied to a friction element of an automatic transmission. The controller uses a turbine speed versus engine torque table in KAM (Keep Alive Memory) to store the adaptive pressure adder for each shift. Tables in KAM represent fuzzy rules which are altered based on shift performance criteria to produce a self-organising fuzzy logic controller. The criteria, which define shift performance, include the ratio change slip time and the initial ratio change time divided by the desired slip time (called target ratio). The desired slip time is determined from a calibratable matrix. After a shifting event, an adaptive pressure adjustment is determined for the next shifting event having the same conditions. A two-input (slip time and target ratio) fuzzy logic controller is used to determine the pressure adjustment. The adaptive pressure adjustment from the fuzzy controller is then increased if stage time is greater than a calibratable value. The adaptive pressure is also multiplied by a factor determined from the deviation in the throttle position reading for the shift event. Once the adaptive pressure is calculated, the adjustment is added to the cells of the adaptive pressure matrix that correspond to the turbine speed and engine torque conditions.

    摘要翻译: 一种自器官伊辛模糊逻辑控制器发展到自适应压力加法器做了修改的提供给自动变速器的摩擦元件压力的大小。 所述控制器使用涡轮速度相对于在KAM发动机扭矩表(保活存储器),用于存储针对每个移位的自适应压力加法器。 在KAM表代表是基于哪个经改变的上移性能标准,以产生一个自器官伊辛模糊逻辑控制器的模糊规则。 的标准,其限定换档性能,包括比率变化滑移时间和初始比率变化时由所希望的滑移时间(称为目标比率)划分。 所希望的滑移时间是从标定表矩阵确定性开采。 一个变换事件后,向自适应压力调整确定性开采具有在相同的条件下一个换档事件。 二输入(滑移时间和目标传动比)的模糊逻辑控制器来确定性矿的压力调整。 然后从该模糊控制器的自适应调整压力增加,如果阶段时间比一个校准表值。 通过在节流阀位置读数换档事件从偏差开采确定性因子自适应压力是如此相乘。 一旦自适应压力计算,调整添加到所述自适应压力矩阵单元都对应于涡轮机速度和发动机扭矩的条件。

    Control mechanism for automatic transmission
    75.
    发明公开
    Control mechanism for automatic transmission 失效
    自动变速器的控制机构

    公开(公告)号:EP0811794A2

    公开(公告)日:1997-12-10

    申请号:EP96120368.4

    申请日:1996-12-18

    IPC分类号: F16H63/00 F16H61/00

    摘要: Uncomfortable travel of a vehicle due to engine brake actions during the travel of the vehicle in traffic is prevented without using an one-way clutch within a transmission mechanism. An automatic transmission is composed of rotational elements that are braked at the time of establishing low stages, a brake B-3, 32 that brakes the rotational elements, and control systems 5, 6 which control the oil pressure of the hydraulic servo 4 in the brake. A band brake B-3 that creates differences in application forces, using self-energizing and deenergizing actions, serves as the brake, which is set to have an area in which the oil pressure during the drive is lower than the oil pressure during the non-drive, by setting the self-energizing direction as a direction of rotation of the rotational element 31 during the drive and the deenergizing direction as an opposite direction of rotation of the rotational element during the non-drive. The control systems have a supplying mechanism which supplies oil to the hydraulic servo of the band brake at an oil pressure P MD that is lower than the oil pressure P EB during the non-drive and is equal to or higher than the oil pressure P FR during the drive.

    摘要翻译: 不使用传动机构内的单向离合器,可以防止在车辆行驶期间由于发动机制动作用而导致车辆不舒适的行驶。 自动变速器由在建立低档时制动的旋转元件,制动旋转元件的制动器B-3,32以及控制液压伺服系统4中的油压的控制系统5,6构成。 制动。 使用自加力和断电作用在施加力方面产生差异的带式制动器B-3用作制动器,该制动器被设定为具有这样的区域,即,驱动期间的油压低于非制动期间的油压 通过将驱动期间的自增能方向设定为旋转元件31的旋转方向,并且将非驱动期间的旋转元件的旋转的相反方向设定为断电方向。 控制系统具有供油机构,该供油机构以低于非驱动期间的油压PEB且等于或高于驱动期间的油压PFR的油压PMD向带式制动器的液压伺服机构供应油 。

    A hydraulic control apparatus for an automatic transmission
    76.
    发明公开
    A hydraulic control apparatus for an automatic transmission 失效
    HydraulischesSteuergerätfürein automatisches Getriebe

    公开(公告)号:EP0806592A2

    公开(公告)日:1997-11-12

    申请号:EP96120385.8

    申请日:1996-12-18

    IPC分类号: F16H61/06

    摘要: The present invention has been made to execute speed change control appropriately under any traveling condition during an up-shift control in speed change by change-over, without increasing the number of control logic. Engagement side hydraulic pressure sweeps up as a result of arithmetic operation by torque phase speed change control. Disengagement side hydraulic pressure is calculated by initial speed change control, dependent on the engagement side hydraulic pressure. The engagement side hydraulic pressure acts primarily and the disengagement side hydraulic pressure carries out follow-up control. Consequently, the same control can be executed regardless of power-on state or power-off state and regardless of a vehicle traveling condition. Accordingly, speed change control can be always executed on the same control stage.

    摘要翻译: 本发明是为了在不增加控制逻辑的数量的情况下通过转换而在变速时的上变速控制中的任何行驶状态下适当地进行变速控制。 通过扭矩相位变化控制进行算术运算,结合侧液压扫描。 取决于接合侧液压,通过初始变速控制来计算脱离侧液压。 接合侧液压主要作用,分离侧液压进行后续控制。 因此,无论电源接通状态或断电状态如何,都可以执行相同的控制,并且不管车辆行驶状态如何。 因此,可以在相同的控制级上始终执行速度变化控制。

    Automatic transmission control apparatus
    79.
    发明公开
    Automatic transmission control apparatus 失效
    自动变速箱控制装置

    公开(公告)号:EP0742390A3

    公开(公告)日:1996-11-20

    申请号:EP96107403.6

    申请日:1996-05-09

    IPC分类号: F16H61/06

    摘要: An automatic transmission control apparatus has a clutch (1), a hydraulic servo for the clutch, a fluid pressure control unit, a range shift detector, and an electronic control unit. The fluid pressure control unit has a manual valve, a pressure regulating valve device, and a changeover valve device. The electronic control unit controls the changeover valve device and the pressure regulating valve device. Immediately after shift to the forward driving range, the electronic control unit holds the changeover valve device in such a state that a forward driving range pressure is supplied without passing through the pressure regulating valve device. Then, the electronic control unit shifts the changeover valve device to such a state that a regulated pressure is supplied from the pressure regulating valve device, which has been switched to a pressure regulating state by the electronic control unit. This control operation precisely sets the fluid pressure changeover timing and the initial fluid pressure.

    摘要翻译: 一种自动变速器控制设备具有离合器(1),用于离合器的液压伺服机构,液压控制单元,档位切换检测器和电子控制单元。 液压控制单元具有手动阀,压力调节阀装置和切换阀装置。 电子控制单元控制转换阀装置和压力调节阀装置。 在切换到前进行驶范围之后,电子控制单元立即将换向阀装置保持在不经过压力调节阀装置而供给前进行驶区域压力的状态。 然后,电子控制单元将切换阀装置切换到从调节阀装置供应调节压力的状态,该压力调节阀装置已经被电子控制单元切换到压力调节状态。 该控制操作精确地设定流体压力转换时间和初始流体压力。

    Automatic transmission control apparatus
    80.
    发明公开
    Automatic transmission control apparatus 失效
    Steuerungseinrichtungfürein automatisches Getriebe

    公开(公告)号:EP0742390A2

    公开(公告)日:1996-11-13

    申请号:EP96107403.6

    申请日:1996-05-09

    IPC分类号: F16H61/06

    摘要: An automatic transmission control apparatus has a clutch (1), a hydraulic servo for the clutch, a fluid pressure control unit, a range shift detector, and an electronic control unit. The fluid pressure control unit has a manual valve, a pressure regulating valve device, and a changeover valve device. The electronic control unit controls the changeover valve device and the pressure regulating valve device. Immediately after shift to the forward driving range, the electronic control unit holds the changeover valve device in such a state that a forward driving range pressure is supplied without passing through the pressure regulating valve device. Then, the electronic control unit shifts the changeover valve device to such a state that a regulated pressure is supplied from the pressure regulating valve device, which has been switched to a pressure regulating state by the electronic control unit. This control operation precisely sets the fluid pressure changeover timing and the initial fluid pressure.

    摘要翻译: 一种自动变速器控制装置具有离合器(1),用于离合器的液压伺服机构(C1),流体压力控制单元(3),换档检测器(SN5)和电子控制单元(5)。 流体压力控制单元具有手动阀(32),压力调节阀装置(33,34)和切换阀装置(35,36)。 电子控制单元控制切换阀装置和压力调节阀装置。 在转移到前进行驶范围之后,电子控制单元将转换阀装置保持在提供正向行驶范围压力而不通过压力调节阀装置的状态。 然后,电子控制单元将切换阀装置移动到由电子控制单元切换到压力调节状态的调压阀装置供给调节压力的状态。 该控制操作精确地设定流体压力切换定时和初始流体压力。