METHOD OF LEARNING CLUTCH TOUCH POINT FOR DCT VEHICLE

    公开(公告)号:US20170234376A1

    公开(公告)日:2017-08-17

    申请号:US15168672

    申请日:2016-05-31

    Inventor: Sung Hyun CHO

    Abstract: A method of learning a clutch touch point for a DCT vehicle, and he method is performed to learn a touch point of an apply-side clutch in a torque phase process during gear shifting. The method includes: controlling an amount of slip of a release-side clutch in an allowable range by a controller, when gear shifting is initiated; performing torque crossing control by releasing a release-side clutch torque to a certain level while applying a clutch torque to an apply-side clutch to the same level as the release-side clutch torque by the controller, after the controlling an amount of slip of a release-side clutch; and performing learning determination so as to learn a touch point of the apply-side clutch by the controller, when the amount of slip of the release-side clutch is beyond the allowable range in the performing torque crossing control.

    METHOD FOR PREVENTING BAULKING OF DCT FOR VEHICLE
    16.
    发明申请
    METHOD FOR PREVENTING BAULKING OF DCT FOR VEHICLE 有权
    用于防止车辆离散化的方法

    公开(公告)号:US20160377130A1

    公开(公告)日:2016-12-29

    申请号:US14947546

    申请日:2015-11-20

    Abstract: A method for reducing baulking of a dual clutch transmission (“DCT”) for a vehicle includes a first engaging step engaging an odd-stage clutch and an even-stage clutch of a DCT in a case of an ignition-on state. An ascertaining step ascertains a range positioned by a shift lever when an engine is cranked after the first engaging step. A second engaging step engages shift gears respectively, after disengaging at least one of the odd-stage clutch and the even-stage clutch depending on the ascertained range position of the shift lever.

    Abstract translation: 一种用于减少用于车辆的双离合器变速器(“DCT”)的喘振的方法包括在点火开启状态的情况下接合奇数级离合器和DCT的偶数级离合器的第一接合步骤。 当第一接合步骤发动机起动时,确定步骤确定由变速杆定位的范围。 在根据变速杆的确定的范围位置分离奇数级离合器和偶数级离合器中的至少一个离合器之后,第二接合步骤分别接合变速齿轮。

    METHOD FOR PROTECTING CLUTCH FOR DUAL CLUTCH TRANSMISSION
    17.
    发明申请
    METHOD FOR PROTECTING CLUTCH FOR DUAL CLUTCH TRANSMISSION 有权
    用于保护双离合器传输的离合器的方法

    公开(公告)号:US20160084375A1

    公开(公告)日:2016-03-24

    申请号:US14619995

    申请日:2015-02-11

    Abstract: A method for protecting a clutch for a Dual Clutch Transmission may include an input step of receiving an input of a temperature of a clutch, and a gear shift pattern changing step of changing a preset gear shift pattern and operating to perform gear shift in a vehicle speed region that secedes from a vehicle speed of the preset gear shift pattern when the temperature of the clutch is equal to or higher than a first reference temperature.

    Abstract translation: 用于保护用于双离合器变速器的离合器的方法可以包括接收离合器的温度的输入的输入步骤和改变预设换档模式并进行操作以执行车辆换挡的换档模式改变步骤 当离合器的温度等于或高于第一基准温度时,该速度区域与预设换档模式的车速分离。

    SHIFT CONTROL METHOD IN DCT VEHICLE
    18.
    发明申请
    SHIFT CONTROL METHOD IN DCT VEHICLE 有权
    DCT车辆中的变速控制方法

    公开(公告)号:US20150166040A1

    公开(公告)日:2015-06-18

    申请号:US14500256

    申请日:2014-09-29

    Abstract: A shift control method in a vehicle having a dual clutch transmission may include determining whether or not power-off downshifting is started and whether or not torque handover is started, determining whether or not the vehicle has entered a rough terrain, calculating and storing a speed change rate of an engaging input shaft right before the vehicle enters the rough terrain, calculating a target transfer torque of an engaging clutch, and gradually increasing a transfer torque of the engaging clutch by an amount until arriving at the target transfer torque of the engaging clutch, controlling the target transfer torque of the engaging clutch to be maintained until a slip rate arrives at a reference value, and completing the power-off downshifting by gradually reducing the transfer torque of the engaging clutch by the amount of torque that the engaging clutch was gradually increased.

    Abstract translation: 具有双离合器变速器的车辆中的变速控制方法可以包括:判断是否开始关机降档,以及是否开始转矩切换,判定车辆是否进入了崎岖的地形,计算并存储速度 在车辆进入崎岖地形之前的接合输入轴的变化率,计算接合离合器的目标传递扭矩,并逐渐增加接合离合器的传递转矩直到达到接合离合器的目标传递扭矩 控制待保持的接合离合器的目标传递扭矩,直到滑动速度达到基准值,并且通过将接合离合器的传递扭矩逐渐减小接合离合器的转矩量来完成掉电降档, 逐渐增加。

    LAUNCH CONTROL METHOD FOR VEHICLE
    20.
    发明申请

    公开(公告)号:US20220266833A1

    公开(公告)日:2022-08-25

    申请号:US17458963

    申请日:2021-08-27

    Inventor: Sung Hyun CHO

    Abstract: A launch control method for a vehicle may include a step of increasing clutch torque of a clutch according to a decrease in braking pressure, a step of maintaining a current level of the clutch torque for a first reference duration, a step of gradually reducing the clutch torque within a range which is lower than the first reference torque level and is equal to or greater than a second reference torque level which is lower than the first reference torque level, a step of gradually increasing the clutch torque until the clutch torque reaches a third reference torque level which is higher than the first reference torque level, and a step of bringing the control to a stop when a state in which a clutch slip is less than a predetermined critical synchronous slip is maintained for a predetermined critical synchronization duration or longer than the predetermined critical synchronization duration.

Patent Agency Ranking