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公开(公告)号：US20160040691A1
公开(公告)日：2016-02-11
申请号：US14817922
申请日：2015-08-04
发明人： Jun Matsuura , Koji Iwaki , Tomoyuki Tsuji , Minoru Kamada , Hideki Kanenobu , Kengo Sasahara
IPC分类号： F15B15/16 , F16H61/4069
CPC分类号： F16H61/4069 , F04B1/00 , F04B23/04 , F16H39/04 , F16H47/02 , F16H61/431
摘要： An HST control mechanism includes a rotary member, a servo unit, a telescopic member, and a biasing device. The rotary member for controlling a displacement of a hydrostatic transmission (HST) is pivoted outside of a casing incorporating the HST. The servo unit includes a telescopically movable actuator and a valve controlling the telescopic movement of the actuator. The actuator is interlockingly connected to the rotary member. The servo unit is pivotally supported on the casing via a first pivot. The servo unit rotates centered on the first pivot as the rotary member rotates according to the telescopic movement of the actuator hydraulically controlled by the valve. The telescopic member is pivotally supported on the casing via a second pivot. The telescopic member is provided with the biasing device that biases the telescopic member and the rotary member toward a position corresponding to a neutral state of the HST.
摘要翻译： HST控制机构包括旋转构件，伺服单元，伸缩构件和偏置装置。 用于控制静液压变速器（HST）的位移的旋转构件在包括HST的套管的外部枢转。 伺服单元包括可伸缩运动的致动器和控制致动器的伸缩运动的阀。 致动器互锁地连接到旋转构件。 伺服单元通过第一枢轴枢转地支撑在壳体上。 随着旋转构件根据由阀液压控制的致动器的伸缩运动而旋转，伺服单元以第一枢轴为中心旋转。 伸缩构件通过第二枢轴枢转地支撑在壳体上。 伸缩构件设置有将伸缩构件和旋转构件朝向对应于HST的中立状态的位置偏压的偏置装置。
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公开(公告)号：US20170307075A1
公开(公告)日：2017-10-26
申请号：US15650358
申请日：2017-07-14
发明人： Jun MATSUURA , Koji Iwaki , Tomoyuki Tsuji , Minoru Kamada , Hideki Kanenobu , Kengo Sasahara
IPC分类号： F16H61/4069 , F16H39/04 , F04B23/04 , F16H61/431 , F04B1/00
CPC分类号： F16H61/4069 , F04B1/00 , F04B23/04 , F16H39/04 , F16H47/02 , F16H61/431
摘要： An HST control mechanism includes a rotary member, a servo unit, a telescopic member, and a biasing device. The rotary member for controlling a displacement of a hydrostatic transmission (HST) is pivoted outside of a casing incorporating the HST. The servo unit includes a telescopically movable actuator and a valve controlling the telescopic movement of the actuator. The actuator is interlockingly connected to the rotary member. The servo unit is pivotally supported on the casing via a first pivot. The servo unit rotates centered on the first pivot as the rotary member rotates according to the telescopic movement of the actuator hydraulically controlled by the valve. The telescopic member is pivotally supported on the casing via a second pivot. The telescopic member is provided with the biasing device that biases the telescopic member and the rotary member toward a position corresponding to a neutral state of the HST.
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公开(公告)号：US09416859B2
公开(公告)日：2016-08-16
申请号：US13863843
申请日：2013-04-16
发明人： Koji Iwaki , Jun Matsuura , Daisuke Murashima , Tomoyuki Ebihara , Minoru Kamada
摘要： A hydrostatic stepless transmission (“HST”) includes a center casing into which a plunger block of a hydraulic pump and a plunger block of a hydraulic motor are inserted. Plunger ports are open and aligned peripherally on an outer peripheral surface of each plunger block. A pair of main fluid passages of a closed fluid circuit fluidly connecting the hydraulic pump to the hydraulic motor are formed in opposite side portions of the center casing. Each of the main fluid passage includes peripheral grooves formed on an inner peripheral surface of the center casing so as to face the plunger ports of the respective plunger blocks, and includes an axial fluid duct formed to be interposed between the peripheral grooves. A bearing gap is provided between the inner peripheral surface of the center casing and the outer peripheral surface of the plunger block so as to cause a dynamic pressure action of fluid.
摘要翻译： 静液压无级变速器（“HST”）包括中央壳体，液压泵的柱塞块和液压马达的柱塞块插入其中。 柱塞端口在每个柱塞块的外周表面上是外围开口和对准的。 液压泵与液压马达流体连接的闭合流体回路的一对主流体通道形成在中心壳体的相对侧部。 每个主流体通道包括形成在中心壳体的内周表面上的周向槽，以便与各个柱塞块的柱塞端口相对，并且包括形成为插入在周边槽之间的轴向流体管道。 在中心壳体的内周面和柱塞块的外周面之间设置有轴承间隙，以引起流体的动态压力作用。
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4.发明授权Continuously variable transmission control system for vehicle and work vehicle 有权用于车辆和工作车辆的连续可变变速箱控制系统公开(公告)号：US09222581B2
公开(公告)日：2015-12-29
申请号：US14193701
申请日：2014-02-28
发明人： Kazunari Koga , Minoru Kamada , Tomoyuki Ebihara
IPC分类号： F16H9/12 , F16H63/06 , F16H61/662
CPC分类号： F16H63/062 , F16H61/66259
摘要： A continuously variable transmission control system includes a continuously variable transmission device having an electricity-driven actuator that changes an width between a moveable sheave and a fixed sheave in at least one pulley of a drive pulley and a driven pulley, and a control device that controls driving of the electricity-driven actuator. The control device selects, from a plurality of speed relationships, each of which is a relationship between an input shaft rotational speed of the drive pulley and an output shaft rotational speed of the driven pulley, one speed relationship according to an input of a switch command signal or a drive state of the vehicle, and changes the width between the moveable sheave and the fixed sheave based on the selected speed relationship and detected values of the input shaft rotational speed and the output shaft rotational speed.
摘要翻译： 一种无级变速器控制系统，包括：无级变速器，其具有在驱动轮和从动带轮的至少一个滑轮中改变可动轮和固定绳轮之间的宽度的电动致动器;以及控制装置， 驱动电动执行机构。 控制装置从多个速度关系中选择每个都是驱动滑轮的输入轴转速与从动皮带轮的输出轴转速之间的关系，根据切换指令的输入的一个速度关系 信号或驱动状态，并且基于所选择的速度关系和输入轴转速和输出轴转速的检测值来改变可动轮和固定滑轮之间的宽度。
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公开(公告)号：US09140356B2
公开(公告)日：2015-09-22
申请号：US13927930
申请日：2013-06-26
发明人： Minoru Kamada
IPC分类号： F16H61/42 , G06F17/00 , F16H61/421 , F16H61/431
CPC分类号： F16H61/42 , B60W2540/10 , F16H59/18 , F16H61/421 , F16H61/431
摘要： A travel control unit of a working vehicle includes an HST which is a hydraulic continuously variable transmission having a hydraulic pump and a hydraulic motor, a pedal sensor which is an operator sensor which detects a position of an acceleration pedal which is an acceleration operator, and a controller which changes a displacement of the hydraulic pump based on the position of the acceleration pedal. The controller increases the displacement of the hydraulic motor as the displacement of the hydraulic pump is reduced due to a displacement of the acceleration pedal to a low-velocity side.
摘要翻译： 作业车辆的行驶控制单元包括作为具有液压泵和液压马达的液压无级变速器的HST，作为检测作为加速度运算器的加速踏板的位置的操作者传感器的踏板传感器，以及 基于加速踏板的位置改变液压泵的排量的控制器。 当液压泵的位移由于加速踏板向低速侧的位移而减小时，控制器增加液压马达的位移。
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公开(公告)号：US20130269328A1
公开(公告)日：2013-10-17
申请号：US13863843
申请日：2013-04-16
发明人： Koji IWAKI , Jun Matsuura , Daisuke Murashima , Tomoyuki Ebihara , Minoru Kamada
IPC分类号： F16H39/00
摘要： A hydrostatic stepless transmission (“HST”) includes a center casing into which a plunger block of a hydraulic pump and a plunger block of a hydraulic motor are inserted. Plunger ports are open and aligned peripherally on an outer peripheral surface of each plunger block. A pair of main fluid passages of a closed fluid circuit fluidly connecting the hydraulic pump to the hydraulic motor are formed in opposite side portions of the center casing. Each of the main fluid passage includes peripheral grooves formed on an inner peripheral surface of the center casing so as to face the plunger ports of the respective plunger blocks, and includes an axial fluid duct formed to be interposed between the peripheral grooves. A bearing gap is provided between the inner peripheral surface of the center casing and the outer peripheral surface of the plunger block so as to cause a dynamic pressure action of fluid.
摘要翻译： 静液压无级变速器（“HST”）包括中央壳体，液压泵的柱塞块和液压马达的柱塞块插入其中。 柱塞端口在每个柱塞块的外周表面上是外围开口和对准的。 液压泵与液压马达流体连接的闭合流体回路的一对主流体通道形成在中心壳体的相对侧部。 每个主流体通道包括形成在中心壳体的内周表面上的周向槽，以便与各个柱塞块的柱塞端口相对，并且包括形成为插入在周边槽之间的轴向流体管道。 在中心壳体的内周面和柱塞块的外周面之间设置有轴承间隙，以引起流体的动态压力作用。
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