Converterless multiple-ratio automatic transmission
    42.
    发明授权
    Converterless multiple-ratio automatic transmission 失效
    无转换倍率自动变速箱

    公开(公告)号:US06217479B1

    公开(公告)日:2001-04-17

    申请号:US09353289

    申请日:1999-07-15

    Abstract: A multiple-ratio transmission with planetary gearing and a friction clutch and brake for controlling relative motion of the gearing to establish multiple driving ratios between an internal combustion engine and vehicle traction wheels, the clutch and brake include a forward drive clutch and a reverse drive clutch for establishing torque flow paths through the gearing. The forward drive clutch establishes a torque flow path through the gearing from the engine through a torque output element of the transmission during vehicle startup in forward drive range, and the reverse clutch establishes a corresponding torque flow path during startup in reverse. A mechanical connection between the torque input shaft of the gearing and the crankshaft is characterized by minimal rotating mass, thereby reducing the inertia of rotating mass of the elements of the transmission.

    Abstract translation: 一种具有行星齿轮传动装置和摩擦离合器和制动器的多比率变速器,用于控制齿轮传动装置的相对运动以在内燃机和车辆牵引轮之间建立多个驱动比,离合器和制动器包括前进驱动离合器和反向驱动离合器 用于建立通过齿轮传动装置的扭矩流动路径。 前进驱动离合器在正向驱动范围内的车辆起动期间通过传动装置的扭矩输出元件建立来自发动机的传动装置的扭矩流动路径,并且反向离合器在启动期间建立相应的扭矩流动路径。 传动装置的转矩输入轴与曲轴之间的机械连接的特征在于旋转质量最小,从而降低变速箱元件旋转质量的惯性。

    Hybrid vehicle powertrain and control therefor
    43.
    发明授权
    Hybrid vehicle powertrain and control therefor 有权
    混合动力车辆动力总成及其控制

    公开(公告)号:US06176808B1

    公开(公告)日:2001-01-23

    申请号:US09353290

    申请日:1999-07-15

    Abstract: A powertrain assembly for an automotive vehicle having an interanal combustion engine and transmission gearing for delivering engine torque to traction wheels of a vehicle. An electric induction motor is situated in the torque flow path between the engine and the transmission. The induction motor complements engine torque which permits the engine to be turned off when the vehicle is at rest, thereby improving fuel economy and rendering undesirable exhaust gas emissions from the internal combustion engine. The torque multiplication that would normally be available from a hydrokinetic torque converter in the transmission is essentially replaced with auxiliary launch torque supplied by the induction motor during vehicle startup. The vibration damping function of a hydrokinetic torque converter during engine idle is also performed by the induction motor. Therefore, a hydrokinetic torque converter in the transmission in not necessary. The induction motor, during those operating modes of the vehicle when induction motor torque is not required to deliver driving torque, functions as an alternator during periods of regenerative braking with the internal combustion engine inactive and with the vehicle in a coast mode.

    Abstract translation: 一种用于机动车辆的动力总成组件,其具有用于将发动机转矩传递给车辆牵引轮的中间燃烧发动机和传动装置。 电动感应电动机位于发动机和变速器之间的扭矩流动路径中。 感应电动机补充发动机扭矩,其允许当车辆停转时关闭发动机,从而提高燃料经济性并且使内燃机产生不期望的废气排放。 在变速器中通常可以从动力学变矩器获得的转矩乘法基本上被车辆起动期间由感应电动机提供的辅助发动转矩所替代。 发动机怠速时的动力学变矩器的减振功能也由感应电动机进行。 因此,变速器中的动力变矩器不需要。 感应电动机在感应电动机转矩不需要传递驱动转矩的车辆的这些操作模式期间,在内燃机不再使用的再生制动期间和车辆处于滑行模式时用作交流发电机。

    Method for controlling an automatic transmission by sensing friction
element torque capacity
    44.
    发明授权
    Method for controlling an automatic transmission by sensing friction element torque capacity 有权
    通过感测摩擦元件扭矩能力来控制自动变速器的方法

    公开(公告)号:US6110068A

    公开(公告)日:2000-08-29

    申请号:US368219

    申请日:1999-08-04

    Abstract: A method for controlling torque transfer between first and second friction elements in an automatic transmission having a hydraulic band brake servo in which a magnet is fixed to a displaceable piston, and a sensor producing a signal responsive to the sensed intensity of a field produced by the magnet representing the position of the servo piston, producing from the signal an indication of the position of the servo piston, determining a reference threshold servo position corresponding to incipient band brake torque capacity, and reducing pressure in the second friction element when the current servo displacement equals the threshold displacement.

    Abstract translation: 一种用于控制自动变速器中的第一和第二摩擦元件之间的转矩传递的方法,所述自动变速器具有液压带式制动器伺服机构,其中磁体固定到可移位的活塞,以及传感器,其产生响应于所感测到的场的感测强度的信号 表示伺服活塞的位置的磁体,从信号产生伺服活塞的位置的指示,确定对应于初始带制动转矩容量的参考阈值伺服位置,以及当当前伺服位移时减小第二摩擦元件中的压力 等于阈值位移。

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