Control apparatus for automatic transmission
    91.
    发明授权
    Control apparatus for automatic transmission 有权
    自动变速箱控制装置

    公开(公告)号:US08504262B2

    公开(公告)日:2013-08-06

    申请号:US12843849

    申请日:2010-07-26

    摘要: A control apparatus for an automatic transmission includes a torque calculator configured to calculate a torque required during a speed change for a hydraulic clutch at a target speed stage based on an output torque of an engine. A supply fluid pressure calculator is configured to obtain, from the calculated torque, a supply fluid pressure to be supplied to the hydraulic clutch by using a clutch friction coefficient. A fluid supplier is configured to supply the obtained supply fluid pressure to the hydraulic clutch to perform the speed change for an output of the engine through a gear corresponding to the target speed stage. A clutch plate temperature estimating device is configured to estimate a plate temperature of the hydraulic clutch. A fluid pressure correcting device is configured to correct the supply fluid pressure based on the estimated plate temperature.

    摘要翻译: 一种用于自动变速器的控制装置,包括:扭矩计算器,被配置为基于发动机的输出转矩来计算在目标速度级的液压离合器的变速期间所需的转矩。 供给流体压力计算器被配置为从计算出的扭矩获得通过使用离合器摩擦系数提供给液压离合器的供给流体压力。 流体供给器被构造成将获得的供给流体压力提供给液压离合器,以通过与目标速度级相对应的档位对发动机的输出进行变速。 离合器板温度估计装置被配置为估计液压离合器的板温度。 流体压力校正装置被配置为基于估计的板温度来校正供给流体压力。

    Method for limiting drive train torque
    94.
    发明授权
    Method for limiting drive train torque 有权
    限制传动系转矩的方法

    公开(公告)号:US07867136B2

    公开(公告)日:2011-01-11

    申请号:US11724251

    申请日:2007-03-15

    摘要: A method is provided for limiting a torque output associated with a power conversion unit. The method may include receiving data related to a pressure associated with an implement system hydraulic cylinder, determining, based on the data, a preferred torque value, wherein the preferred torque value is below a predetermined threshold value associated with one or more drive train components, and modifying a torque output associated with a power conversion unit to approximate the preferred torque value.

    摘要翻译: 提供一种用于限制与功率转换单元相关联的转矩输出的方法。 该方法可以包括接收与工具系统液压缸相关联的压力的数据,基于数据确定优选扭矩值,其中优选扭矩值低于与一个或多个传动系组件相关联的预定阈值, 以及修改与功率转换单元相关联的扭矩输出以近似优选的扭矩值。

    Automatic transmission
    95.
    发明授权
    Automatic transmission 有权
    自动变速器

    公开(公告)号:US07862472B2

    公开(公告)日:2011-01-04

    申请号:US11946483

    申请日:2007-11-28

    IPC分类号: F16H59/60 F16H3/44 G06F19/00

    摘要: In a planetary gear type stepped automatic transmission, a gear shift control to shift a gear shift stage between a first gear shift stage and a second gear shift stage is performed by a first shift control section by referring to a first gear shift control data used when the gear shift stage is switched between the first gear shift stage and the second gear shift stage, an abnormality state due to a failure of at least one of a first frictional engaging element and a second frictional engaging element is detected, and an abnormality state gear shift control is performed to shift the gear shift stage between a third gear shift stage (for example, first speed) and a fourth gear shift stage (for example, 2.5 speed) by the first shift control section, while forcefully releasing the first frictional engaging element, when detecting the abnormality state.

    摘要翻译: 在行星齿轮型有级式自动变速器中,通过参照当前所使用的第一变速控制数据,通过第一变速控制部分执行用于在第一变速级和第二变速级之间移动变速级的变速控制 在第一变速级和第二变速级之间切换变速级,检测由于第一摩擦接合元件和第二摩擦接合元件中的至少一个而发生故障的异常状态,异常状态齿轮 执行变速控制,以通过第一变速控制部在第三变速级(例如,第一速度)和第四变速级(例如,2.5速)之间移动变速级,同时强制地释放第一摩擦接合 元件,当检测到异常状态时。

    Fuel quality indication for adaptive transmission control
    97.
    发明授权
    Fuel quality indication for adaptive transmission control 有权
    燃油质量指示用于自适应传动控制

    公开(公告)号:US07641587B2

    公开(公告)日:2010-01-05

    申请号:US11688396

    申请日:2007-03-20

    IPC分类号: F16H59/60

    摘要: A control system and method for adaptively controlling transmission ratio shifting in an electronically controlled transmission. A refueling event is detected. After the detected refueling event, fuel consumption is monitored for a predetermined period during which a change in composition of fuel to the engine reaches or approaches a steady state. During the period, the rate of adapting transmission shift controls is modified to respond quicker to the change in shift characteristics induced by differences in torque produced by the engine. Implementing this method can improve transmission shift quality while the quality of fuel reaching an engine is in transition.

    摘要翻译: 一种用于在电子控制传输中自适应地控制传动比变速的控制系统和方法。 检测到加油事件。 在检测到的加油事件之后,将燃料消耗量监视预定时间段,在此期间燃料对发动机的组成的变化达到或接近稳定状态。 在此期间,修改变速箱换档控制的速率被修改以更快地响应由发动机产生的扭矩差引起的换档特性的变化。 实现这种方法可以提高变速箱换档质量,同时燃油到达发动机的质量正在转型。

    Method and apparatus for estimating transmission ratio
    99.
    发明授权
    Method and apparatus for estimating transmission ratio 失效
    用于估计传动比的方法和装置

    公开(公告)号:US07476177B2

    公开(公告)日:2009-01-13

    申请号:US11481563

    申请日:2006-07-05

    申请人: Takuya Sakamoto

    发明人: Takuya Sakamoto

    IPC分类号: B60W10/04 F16H59/60 G06F7/00

    摘要: A method and apparatus for estimating a transmission ratio of a power transmission path defined between input and output shafts is provided. The method includes detecting a rotational speeds of the input and output shafts, calculating a rotational-speed ratio between the detected rotational speeds of the input and output shafts, determining whether or not a difference between the rotational-speed ratio calculated at a certain time and a rotational-speed ratio calculated earlier is within a first threshold, and estimating a value relating to the later rotational-speed ratio to be the transmission ratio and storing the value in a memory if the difference between the rotational-speed ratios is determined to be within the first threshold, while estimating a value relating to the earlier rotational-speed ratio stored in the memory to be the transmission ratio if the difference between the rotational-speed ratios is determined not to be within the first threshold.

    摘要翻译: 提供一种用于估计在输入和输出轴之间限定的动力传递路径的传动比的方法和装置。 该方法包括检测输入和输出轴的转速,计算检测到的输入和输出轴的转速之间的转速比,确定在一定时间计算的转速比与 先前计算的转速比在第一阈值以内,并且将与稍后的转速比相关的值估计为传动比并将该值存储在存储器中,如果转速比之间的差确定为 在所述第一阈值内,如果确定所述转速比之间的差被确定为不在所述第一阈值内,则将存储在所述存储器中的较早转速比的值估计为所述传动比。

    Swap Shift Control Scheme for an Automatic Transmission
    100.
    发明申请
    Swap Shift Control Scheme for an Automatic Transmission 有权
    自动变速器的换档换档控制方案

    公开(公告)号:US20080125267A1

    公开(公告)日:2008-05-29

    申请号:US11947506

    申请日:2007-11-29

    IPC分类号: F16H31/00 F16H59/60 G06F17/00

    摘要: A transmission for a vehicle includes a first gear set and a second gear set. A first plurality of elements are operable in an applied state and a released state and a second plurality of elements are operable in an applied state and a released state. A controller toggles the first and second plurality of elements between the applied state and the released state to achieve a desired gear ratio. The controller times entry of at least one of the first and second plurality of elements into: the released state with entry of at least another of the first and second plurality of elements into the applied state by controlling a hold pressure applied to the at least one element entering the released state. The controller determines the hold pressure by referencing current operating conditions of the transmission in a lookup table stored in a memory of the controller.

    摘要翻译: 用于车辆的变速器包括第一齿轮组和第二齿轮组。 第一多个元件在施加状态下可操作,并且释放状态和第二多个元件在施加状态和释放状态下可操作。 控制器在施加状态和释放状态之间切换第一和第二多个元件以实现期望的传动比。 所述控制器将所述第一和第二多个元件中的至少一个元件进入:通过控制施加到所述至少一个元件的保持压力而将所述第一和第二多个元件中的至少另一元件进入所述施加状态的释放状态 元素进入释放状态。 控制器通过参考存储在控制器的存储器中的查找表中的传输的当前操作条件来确定保持压力。