Pushbelt for a continuously variable transmission and a transmission provided therewith

    公开(公告)号:US10794451B2

    公开(公告)日:2020-10-06

    申请号:US15539166

    申请日:2015-12-23

    申请人: ROBERT BOSCH GMBH

    发明人: Arjen Brandsma

    摘要: In a pushbelt for a continuously variable transmission that includes at least one endless carrier and a number of transverse segments, which are mounted on the endless carrier. The transverse segments include a bearing surface that contacts the radial inside of the endless carrier, as well as a convexly curved tilting edge that is a part of a main body surface of the transverse segment. According to the present disclosure the convex curvature of the tilting edge extends both radially inward or below and radially outward or above the bearing surface, at least as seen in radial or height direction relative to the endless carrier.

    Friction drive belt
    6.
    发明授权
    Friction drive belt 有权
    摩擦传动皮带

    公开(公告)号:US09011283B2

    公开(公告)日:2015-04-21

    申请号:US13867445

    申请日:2013-04-22

    发明人: Hiroyuki Shiriike

    摘要: A friction drive belt has a pulley contact portion of a belt body, and at least the pulley contact portion is made of a rubber composition. Numerous pores are formed in a surface of the pulley contact portion of the belt body, and numerous small protrusions having an average height of 4-40 μm are formed to protrude from the surface.

    摘要翻译: 摩擦传动带具有皮带主体的滑轮接触部分,并且至少滑轮接触部分由橡胶组合物制成。 在带体的皮带轮接触部分的表面中形成许多孔,并且形成许多平均高度为4-40μm的小突起从表面突出。

    Friction drive belt
    8.
    发明授权
    Friction drive belt 有权
    摩擦传动皮带

    公开(公告)号:US08882621B2

    公开(公告)日:2014-11-11

    申请号:US13125918

    申请日:2009-10-06

    摘要: A friction drive belt includes: an adhesion rubber layer having a core wire embedded therein so as to form a helical pattern having a pitch in a lateral direction of the belt; a compression rubber layer provided on a surface of the adhesion rubber layer located on an inner side of the belt, and serving as a portion that is to contact pulleys, and a backing rubber layer provided on a surface of the adhesion rubber layer located on an outer side of the belt, and serving as a back portion of the belt. A ratio of tensile stress at 10% elongation of a rubber composition forming the adhesion rubber layer to that of a rubber composition forming the backing rubber layer is 1.77 or more, as measured in a longitudinal direction of the belt at an ambient temperature of 25° C. according to JIS K 6251.

    摘要翻译: 摩擦传动带包括:粘合橡胶层,其具有嵌入其中的芯线,以形成在带的横向方向上具有间距的螺旋图案; 设置在位于带的内侧的粘合橡胶层的表面上并且用作与皮带轮接触的部分的压缩橡胶层,以及设置在粘合橡胶层的位于其上的粘合橡胶层的表面上的背衬橡胶层 带的外侧,并且用作带的后部。 形成粘合橡胶层的橡胶组合物的拉伸应力与形成背衬橡胶层的橡胶组合物的10%伸长率的拉伸应力的比例为在带的纵向方向上测量的环境温度为25°时为1.77以上 C.根据JIS K 6251。

    Control device of continuously variable transmission for vehicle
    10.
    发明授权
    Control device of continuously variable transmission for vehicle 有权
    车载无级变速器控制装置

    公开(公告)号:US08798877B2

    公开(公告)日:2014-08-05

    申请号:US13814331

    申请日:2010-08-05

    摘要: A control device of a continuously variable transmission for a vehicle has a pair of variable pulleys and a transmission belt, and the control device respectively controls input-side and output-side thrust forces of input-side and output-side variable pulleys to set an actual gear ratio to a target gear ratio, prevents a slip of the transmission belt, and determines a lowest-speed-side gear ratio. When it is determined that a detection value of a rotation speed for calculating the actual gear ratio does not reflect an actual rotation speed, target input-side and output-side thrust forces are set to be target thrust forces for maintaining the lowest-speed-side gear ratio and preventing the slip of the transmission belt, and based on whether the actual gear ratio is already the lowest-speed-side gear ratio, values of the input-side and output-side thrust forces are changed for obtaining the target thrust forces.

    摘要翻译: 一种用于车辆的无级变速器的控制装置具有一对可变皮带轮和传动皮带,并且控制装置分别控制输入侧和输出侧可变滑轮的输入侧和输出侧推力, 实际齿轮比与目标齿轮比,防止传动皮带的滑动,并确定最低速侧齿轮比。 当确定用于计算实际齿轮比的转速的检测值不反映实际转速时,目标输入侧和输出侧推力被设定为用于保持最低速 - 并且防止传动皮带的滑动,并且基于实际齿轮比是否已经是最低速侧齿轮比,输入侧和输出侧推力的值被改变以获得目标推力 军队。