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    • 8. 发明授权
    • Method of controlling a torque-transmitting mechanism and clutch capacity control system
    • 控制扭矩传递机构和离合器容量控制系统的方法
    • US07487865B2
    • 2009-02-10
    • US11285680
    • 2005-11-21
    • Paul D. Stevenson
    • Paul D. Stevenson
    • F16D25/06
    • F16H63/3026F16H61/686F16H2057/087F16H2063/303F16H2200/0056F16H2342/044
    • A method of controlling a torque-transmitting mechanism in a multi-speed transmission includes providing structure forming a pressurizable reaction chamber at a reaction surface of an apply piston opposing an apply surface of the piston. The reaction chamber is pressurized to a first pressure during engagement of the torque-transmitting mechanism to establish a first speed ratio and a first torque capacity. The reaction chamber is pressurized to a second pressure level during engagement of the torque-transmitting mechanism to establish a second speed ratio and a second torque capacity. Thus, because pressure in the reaction chamber may be controllably varied, a greater reaction pressure is established during the second speed ratio, allowing a greater apply pressure level to be used to establish the second torque capacity. A clutch capacity control system is also provided that allows better control of torque-transmitting mechanisms engagable in different speed ratios to establish different torque capacities.
    • 在多速变速器中控制扭矩传递机构的方法包括提供在与活塞的施加表面相对的施加活塞的反作用表面处形成可加压反应室的结构。 在扭矩传递机构的接合期间,将反应室加压至第一压力,以建立第一速度比和第一扭矩容量。 在扭矩传递机构的接合期间,反应室被加压到第二压力水平以建立第二速度比和第二扭矩容量。 因此,由于反应室中的压力可以可控地变化,所以在第二速度比期间建立更大的反应压力,允许使用更大的施加压力水平来建立第二扭矩能力。 还提供了离合器容量控制系统,其允许更好地控制以不同速度比接合的扭矩传递机构以建立不同的扭矩容量。
    • 10. 发明授权
    • Control of belt-type continuously variable transmission
    • 带式无级变速器控制
    • US07291078B2
    • 2007-11-06
    • US10828459
    • 2004-04-21
    • Yoshiaki KatouYoshihiro Kono
    • Yoshiaki KatouYoshihiro Kono
    • F16H59/06F16H61/06
    • F16H61/66272F16H2061/66277F16H2342/044
    • A gear change control system of a belt-type continuously variable transmission includes: a movable pulley piston chamber for causing a thrust force to a movable pulley varying a groove width of primary pulley and secondary pulley. The movable pulley piston chamber has double-piston constitution including: a primary clamp chamber and a secondary clamp chamber, for causing a clamp force of clamping the belt, and a cylinder chamber including a primary pulley cylinder chamber and a secondary pulley cylinder chamber, for causing a differential thrust force at a gear change. A clamp chamber oil pressure setting section sets up a clamp chamber oil pressure by the following calculation: dividing the one of the primary thrust force and the secondary thrust force by addition of: applied pressure area of one of the primary clamp chamber and the secondary clamp chamber, and applied pressure area of the cylinder chamber on a selected side.
    • 带式无级变速器的换档控制系统包括:可动皮带轮活塞室,用于对可变皮带轮施加推力,改变主滑轮和次滑轮的槽宽。 可动滑轮活塞室具有双活塞构造,包括:主夹紧室和副夹紧室,用于引起夹紧带的夹紧力,以及包括主皮带轮缸室和副皮带轮缸室的缸室,用于 在齿轮变化时产生不同的推力。 夹紧室油压设定部通过以下计算设定夹紧室油压:通过添加一次推力和二次推力中的一个来分开:一次夹紧室和副夹具之一的施加压力面积 并且在所选择的侧面上施加气缸室的压力区域。