Quick skip-at-sync control system and method
    3.
    发明授权
    Quick skip-at-sync control system and method 有权
    快速跳过同步控制系统和方法

    公开(公告)号:US08323150B2

    公开(公告)日:2012-12-04

    申请号:US12851672

    申请日:2010-08-06

    IPC分类号: F16H59/20

    摘要: A control system includes a shift stage determination module and a clutch control module. The shift stage determination module determines a duration of a first power-on downshift when a second power-on downshift is requested, where a power-on downshift is a downshift of a transmission that occurs when an accelerator pedal is depressed. The clutch control module completes the first power-on downshift and selectively starts controlling the second power-on downshift before the first power-on downshift ends.

    摘要翻译: 控制系统包括变速级确定模块和离合器控制模块。 当需要第二次开机降档时,换档阶段确定模块确定第一次上电降档的持续时间,其中上电降档是当加速踏板被按下时发生的变速器的降档。 离合器控制模块完成第一次上电降档,并在第一次上电降档结束之前选择性地开始控制第二次上电降档。

    QUICK SKIP-AT-SYNC CONTROL SYSTEM AND METHOD
    4.
    发明申请
    QUICK SKIP-AT-SYNC CONTROL SYSTEM AND METHOD 有权
    快速跳出同步控制系统和方法

    公开(公告)号:US20110275479A1

    公开(公告)日:2011-11-10

    申请号:US12851672

    申请日:2010-08-06

    IPC分类号: B60W10/02

    摘要: A control system includes a shift stage determination module and a clutch control module. The shift stage determination module determines a duration of a first power-on downshift when a second power-on downshift is requested, where a power-on downshift is a downshift of a transmission that occurs when an accelerator pedal is depressed. The clutch control module completes the first power-on downshift and selectively starts controlling the second power-on downshift before the first power-on downshift ends.

    摘要翻译: 控制系统包括变速级确定模块和离合器控制模块。 当需要第二次开机降档时,换档阶段确定模块确定第一次上电降档的持续时间,其中上电降档是当加速踏板被按下时发生的变速器的降档。 离合器控制模块完成第一次上电降档,并在第一次上电降档结束之前选择性地开始控制第二次上电降档。

    System and method for automatic transmission shift control
    5.
    发明授权
    System and method for automatic transmission shift control 有权
    自动变速箱换档控制系统及方法

    公开(公告)号:US08396637B2

    公开(公告)日:2013-03-12

    申请号:US12877332

    申请日:2010-09-08

    IPC分类号: B60W10/02 F16D48/06

    摘要: A control system for an automatic transmission coupled to an engine by a torque converter includes a torque module and a first clutch control module. The torque module determines an input torque to the transmission based on an output torque of the engine. The first clutch control module adjusts an acceleration of a turbine of the torque converter during a down shift of the transmission based on the input torque. The first clutch control module adjusts the acceleration of the turbine by adjusting a first pressure of fluid supplied to an off-going clutch of the transmission based on the input torque. The first clutch control module adjusts the first pressure based on a mathematical model that relates a torque capacity of the off-going clutch, the input torque, and the acceleration. A method is also provided.

    摘要翻译: 用于通过变矩器耦合到发动机的自动变速器的控制系统包括转矩模块和第一离合器控制模块。 转矩模块基于发动机的输出转矩来确定变速器的输入转矩。 第一离合器控制模块基于输入转矩在变速器的下降换档期间调节变矩器的涡轮机的加速度。 第一离合器控制模块通过基于输入转矩调节供应给变速器的脱离离合器的流体的第一压力来调节涡轮机的加速度。 第一离合器控制模块基于关于脱离离合器的转矩容量,输入转矩和加速度的数学模型来调节第一压力。 还提供了一种方法。

    SYSTEM AND METHOD FOR AUTOMATIC TRANSMISSION SHIFT CONTROL
    6.
    发明申请
    SYSTEM AND METHOD FOR AUTOMATIC TRANSMISSION SHIFT CONTROL 有权
    自动变速箱换档控制系统与方法

    公开(公告)号:US20110251766A1

    公开(公告)日:2011-10-13

    申请号:US12877332

    申请日:2010-09-08

    IPC分类号: B60W10/02 F16D48/06

    摘要: A control system for an automatic transmission coupled to an engine by a torque converter includes a torque module and a first clutch control module. The torque module determines an input torque to the transmission based on an output torque of the engine. The first clutch control module adjusts an acceleration of a turbine of the torque converter during a down shift of the transmission based on the input torque. The first clutch control module adjusts the acceleration of the turbine by adjusting a first pressure of fluid supplied to an off-going clutch of the transmission based on the input torque. The first clutch control module adjusts the first pressure based on a mathematical model that relates a torque capacity of the off-going clutch, the input torque, and the acceleration. A method is also provided.

    摘要翻译: 用于通过变矩器耦合到发动机的自动变速器的控制系统包括转矩模块和第一离合器控制模块。 转矩模块基于发动机的输出转矩来确定变速器的输入转矩。 第一离合器控制模块基于输入转矩在变速器的下降换档期间调节变矩器的涡轮机的加速度。 第一离合器控制模块通过基于输入转矩调节供应给变速器的脱离离合器的流体的第一压力来调节涡轮机的加速度。 第一离合器控制模块基于关于脱离离合器的转矩容量,输入转矩和加速度的数学模型来调节第一压力。 还提供了一种方法。

    METHOD AND SYSTEM FOR DETERMINING AN ACCUMULATOR PRE-CHARGE PRESSURE IN A FLUID CIRCUIT
    8.
    发明申请
    METHOD AND SYSTEM FOR DETERMINING AN ACCUMULATOR PRE-CHARGE PRESSURE IN A FLUID CIRCUIT 有权
    用于确定流体电路中的累加器预充电压力的方法和系统

    公开(公告)号:US20130179046A1

    公开(公告)日:2013-07-11

    申请号:US13348104

    申请日:2012-01-11

    IPC分类号: F16H59/68 F15B1/033

    摘要: A system includes a pump, accumulator, a sensor which measures line pressure in a fluid circuit, and a controller. The controller plots and calculates respective slopes of first and second sets of measured pressure values from the sensor, calculates a slope ratio, and compares the slope ratio to a threshold. The controller also records the pre-charge pressure as the point of intersection of lines representing the slopes when the ratio exceeds the threshold. A control action is executed when the pre-charge pressure drops below a calibrated minimum threshold. A method includes measuring the pressure values, calculating the respective slopes and the slope ratio, comparing the slope ratio to a ratio threshold, recording the point of intersection of lines representing the slopes as an interpolated pre-charge pressure value when the ratio exceeds the threshold, and executing the control action.

    摘要翻译: 系统包括泵,蓄能器,测量流体回路中的管路压力的传感器和控制器。 控制器绘制并计算来自传感器的第一和第二组测量压力值的各个斜率,计算斜率,并将斜率与阈值进行比较。 当比率超过阈值时,控制器还记录预充电压力作为表示斜率的线的交点。 当预充电压力降至校准的最小阈值以下时,执行控制动作。 一种方法包括测量压力值,计算相应的斜率和斜率,将斜率与比率阈值进行比较,当比率超过阈值时,将代表斜率的线的交点作为内插预充压力值 ,并执行控制动作。