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    Continuously variable transmission
    2.
    发明授权
    Continuously variable transmission 失效
    连续可变传动

    公开(公告)号：US5846152A

    公开(公告)日：1998-12-08

    申请号：US755474

    申请日：1996-11-22

    申请人： Takao Taniguchi ,  Shoichi Miyagawa ,  Kazumasa Tsukamoto ,  Shiro Sakakibara ,  Takeshi Inuzuka ,  Masashi Hattori ,  Takao Terashima

    发明人： Takao Taniguchi ,  Shoichi Miyagawa ,  Kazumasa Tsukamoto ,  Shiro Sakakibara ,  Takeshi Inuzuka ,  Masashi Hattori ,  Takao Terashima

    IPC分类号： F16H9/26 ,  F16H37/02 ,  F16H37/08

    CPC分类号： F16H37/0846 ,  F16H2037/088

    摘要： A transmission unit includes a belt type continuously variable transmission (CVT) having a first pulley arranged on a first shaft with a stationary sheave, a movable sheave and a hydraulic actuator for the movable sheave. The second pulley of the CVT is mounted on a second shaft and also has a stationary sheave, a movable sheave and a hydraulic actuator. A belt is mounted around the first and second pulleys. The transmission unit further includes a synchronous transmission for connecting a first rotary member arranged on the first shaft and a second rotary member arranged on the second shaft at a constant speed ratio, an output gear for transmitting power to the wheels and a planetary gear unit. The planetary gear unit is mounted on the second shaft and includes at least first, second and third rotary elements. The first rotary element is connected to the second rotary member, the second rotary element to the second pulley, and the third rotary element to the output gear. The first shaft is connected through the CVT to the second rotary element and through the synchronous transmission to the first rotary element. The hydraulic actuators are arranged on opposite sides of the belt.

    摘要翻译： 传动单元包括带式无级变速器（CVT），其具有布置在具有固定滑轮的第一轴上的第一滑轮，可动滑轮和用于可动滑轮的液压致动器。 CVT的第二滑轮安装在第二轴上，并且还具有固定滑轮，可动滑轮和液压致动器。 皮带安装在第一和第二滑轮周围。 传动单元还包括用于连接布置在第一轴上的第一旋转构件和以恒定速比配置在第二轴上的第二旋转构件的同步变速器，用于向车轮传递动力的输出齿轮和行星齿轮单元。 行星齿轮单元安装在第二轴上并且包括至少第一，第二和第三旋转元件。 第一旋转元件连接到第二旋转构件，第二旋转元件连接到第二滑轮，并且第三旋转元件连接到输出齿轮。 第一轴通过CVT连接到第二旋转元件，并通过同步传动装置连接到第一旋转元件。 液压致动器布置在带的相对侧上。

    Continuously variable transmission
    3.
    发明授权
    Continuously variable transmission 失效
    连续可变传动

    公开(公告)号：US5833571A

    公开(公告)日：1998-11-10

    申请号：US766349

    申请日：1996-12-13

    申请人： Kazumasa Tsukamoto ,  Takeshi Inuzuka ,  Masashi Hattori

    发明人： Kazumasa Tsukamoto ,  Takeshi Inuzuka ,  Masashi Hattori

    IPC分类号： F16H37/08 ,  F16H61/16 ,  F16H61/662 ,  F16H59/06 ,  F16H37/02

    CPC分类号： F16H37/0846 ,  F16H61/66259 ,  F16H2037/088 ,  F16H2061/1204 ,  F16H2061/6614 ,  F16H61/16 ,  Y10T477/6237 ,  Y10T477/624 ,  Y10T477/62427

    摘要： A continuously variable transmission is switchable between the low and high modes by changing engagement between two clutches. A sensor shoe which moves in association with a movable sheave of a primary pulley is provided with an indent and a protrusion formed at different locations on the sensor shoe. In addition, indents are formed on a spool of a low-high control valve. An interlock rod is provided between the sensor shoe and the low-high control valve. In a predetermined pulley-ratio region in the low and high modes, for example, on a low pulley-ratio side, as the movable sheave moves to the O/D side a base end of the interlock rod rides on the upper surface of the sensor shoe while its opposite end is engaged within one of the indents, thus mechanically locking the low-high control valve. In this way, switching between the low and high modes due to selective engagement of the low and high clutches can be inhibited.

    摘要翻译： 通过改变两个离合器之间的接合，无级变速器可在低模和高速之间切换。 与主滑轮的可动滑轮相关联地移动的传感器靴设置有在传感器靴上的不同位置处形成的凹部和突起。 此外，凹口形成在低压控制阀的阀芯上。 传感器靴和低压控制阀之间设有互锁杆。 在低模式和高模式中的预定滑轮比区域中，例如，在低滑轮比侧，当可动滑轮移动到O / D侧时，互锁杆的基端部位于 传感器鞋，而其相对端接合在一个凹口内，因此机械地锁定低高度的控制阀。 以这种方式，可以抑制由于低和高离合器的选择性接合而导致的低模式和高模式之间的切换。

    Infinitely variable transmission
    4.
    发明授权
    Infinitely variable transmission 失效
    无级变速器

    公开(公告)号：US5961418A

    公开(公告)日：1999-10-05

    申请号：US957772

    申请日：1997-10-24

    申请人： Takao Taniguchi ,  Shoichi Miyagawa ,  Kazumasa Tsukamoto ,  Shiro Sakakibara ,  Takeshi Inuzuka ,  Masashi Hattori ,  Hirofumi Nozawa

    发明人： Takao Taniguchi ,  Shoichi Miyagawa ,  Kazumasa Tsukamoto ,  Shiro Sakakibara ,  Takeshi Inuzuka ,  Masashi Hattori ,  Hirofumi Nozawa

    IPC分类号： B60K6/543 ,  F16H37/02 ,  F16H37/08 ,  F16H61/662

    CPC分类号： B60K6/543 ,  F16H37/022 ,  F16H61/66259 ,  F16H2037/088 ,  F16H2061/6614 ,  F16H37/0846 ,  Y10S903/918 ,  Y10T477/623 ,  Y10T477/6242 ,  Y10T477/62423

    摘要： An infinitely variable transmission has a gear neutral (GN) point and serves as an output member by torque circulation. When a pulley ratio thereof is within a predetermined range from the GN point, a coasting state occurs which may hinder smooth torque transmission based on the transmission efficiency and generate a great engine braking effect (failure in the transmission resulting from the coasting state) based on a large gear ratio. When the pulley ratio assumes a predetermined value that may cause failure in transmission resulting from the coasting state, upon release of the accelerator pedal, an electronic throttle system performs control such that the engine outputs a predetermined torque. Thus a positive driving state is always established. In this state, the continuously variable transmission (CVT) is shifted in the upshift direction to escape rapidly from a range defined by the pulley ratio of the predetermined value.

    摘要翻译： 无级变速器具有齿轮中性点（GN），通过扭矩循环作为输出部件。 当其比率在GN点以上的预定范围内时，会发生滑行状态，这可能会阻碍基于传动效率的平稳转矩传递，并且基于以下原因产生很大的发动机制动效果（由于惯性滑行状态导致的变速器失效） 大齿轮比。 当滑轮比例成为可能导致由于滑行状态导致的变速器失灵的预定值时，在释放加速踏板时，电子节气门系统进行控制，使得发动机输出预定的转矩。 因此，始终建立积极的行车状态。 在这种状态下，无级变速器（CVT）在升档方向上移动，从预定值的滑轮比限定的范围内迅速逃逸。

    Continuously variable transmission with control of switching between forward and reverse
    5.
    发明授权
    Continuously variable transmission with control of switching between forward and reverse 失效
    连续可变传动，控制前后转换

    公开(公告)号：US5690576A

    公开(公告)日：1997-11-25

    申请号：US620226

    申请日：1996-03-22

    申请人： Shuzo Moroto ,  Takao Taniguchi ,  Shoichi Miyagawa ,  Shiro Sakakibara ,  Kazumasa Tsukamoto ,  Takeshi Inuzuka ,  Masashi Hattori

    发明人： Shuzo Moroto ,  Takao Taniguchi ,  Shoichi Miyagawa ,  Shiro Sakakibara ,  Kazumasa Tsukamoto ,  Takeshi Inuzuka ,  Masashi Hattori

    IPC分类号： F16H37/08 ,  F16H61/662 ,  F16H9/26

    CPC分类号： F16H37/0846 ,  F16H61/6625 ,  F16H61/66259 ,  F16H2037/088 ,  F16H2061/6614 ,  Y10T477/624

    摘要： A continuously variable transmission system includes a belt type continuously variable transmission unit which, in turn, is composed of a primary pulley and a secondary pulley wherein the torque transmitting direction is switched by torque circulation in changeover between forward and reverse travel. When a low mode is selected in a D range, a somewhat higher hydraulic pressure from a regulator valve is supplied, through a manual valve, to a secondary hydraulic servo, which moves one sheave of the secondary pulley, and a somewhat lower hydraulic pressure from a ratio control valve is supplied to a primary hydraulic servo which moves one sheave of the primary pulley. When the D range is switched to R range by the manual valve, the supplies of the above hydraulic pressures are reversed. With this arrangement, the relative axial forces on the pulleys are changed in switching between forward and reverse travel.

    摘要翻译： 无级变速器系统包括带式无级变速器单元，该传动单元又由初级带轮和次级带轮组成，其中扭矩传递方向由前进和后退行驶之间的转换中的转矩循环切换。 当在D范围内选择低模式时，来自调节阀的稍高的液压通过手动阀被供应到辅助液压伺服机构，该液压伺服机构使次滑轮的一个滑轮移动，并且稍低的液压从 比率控制阀被供给到主滑轮的一个滑轮的主液压伺服系统。 当通过手动阀将D档切换到R档时，上述液压的供给相反。 通过这种布置，在前进和后退行驶之间切换中，滑轮上的相对轴向力被改变。

    Continuously variable transmission
    9.
    发明授权
    Continuously variable transmission 失效
    连续可变传动

    公开(公告)号：US5788600A

    公开(公告)日：1998-08-04

    申请号：US766801

    申请日：1996-12-13

    申请人： Kazumasa Tsukamoto ,  Takeshi Inuzuka ,  Masashi Hattori

    发明人： Kazumasa Tsukamoto ,  Takeshi Inuzuka ,  Masashi Hattori

    IPC分类号： F16H37/08 ,  F16H61/16 ,  F16H61/662 ,  F16H9/26

    CPC分类号： F16H37/0846 ,  F16H61/66259 ,  F16H2037/088 ,  F16H2061/1204 ,  F16H2061/6614 ,  F16H61/16 ,  Y10T477/6237 ,  Y10T477/624 ,  Y10T477/62427

    摘要： In a CVT transmission with planetary gear operation in forward, zero and reverse directions, reduction in CVT secondary/primary pulley ratio is inhibited when the pulley ratio is less than a set pulley ratio which is higher than the pulley ratio producing zero output rotation (a gear-neutral state). In a ratio region below the set pulley ratio, a movable sheave of a primary pulley is moved to an O/D side. The amount of the movement is detected by a sensor shoe (detecting means) which is associated with the movable sheave. A ratio sensing valve (inhibition means) associated with the sensor shoe, in turn, clogs a port, halting a hydraulic pressure supplied by a primary regulator valve. As a result, no hydraulic pressure is supplied to the second hydraulic chamber by way of a down-shift relief valve, a manual valve or a low-high control valve, inhibiting a down shift.

    摘要翻译： 在具有前进，后退和反向行星齿轮运行的CVT变速器中，当皮带轮比小于设定的皮带轮比率时CVT次级/初级皮带轮比率的减小比设定的皮带轮比高出产生零输出旋转的滑轮比（a 齿轮中立状态）。 在低于设定皮带轮比率的比率区域中，主滑轮的可动滑轮移动到O / D侧。 运动量由与可动滑轮相关联的传感器靴（检测装置）检测。 与传感器靴相关联的比例感测阀（禁止装置）又阻塞端口，停止由一级调节阀供应的液压。 因此，不会通过下降释放阀，手动阀或低压控制阀向第二液压室供给液压，从而抑制下降。