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    • 8. 发明授权
    • Process for producing a pulley for a continuously variable belt drive transmission
    • 一种无级变速皮带传动传动用皮带轮的制造方法
    • US07958635B2
    • 2011-06-14
    • US11086665
    • 2005-03-23
    • Makoto YoshidaYoshiaki KatouYasuo Ito
    • Makoto YoshidaYoshiaki KatouYasuo Ito
    • B21K1/42
    • B24B39/04Y10T29/47Y10T29/49453Y10T29/49456
    • A process for producing a pulley for a belt drive CVT, including subjecting tapered surfaces of a preform of at least one of input and output pulleys to surface hardening, subjecting the surface-hardened tapered surfaces of the preform to hard turning to form microgrooves radially spaced from one another thereon, between which microprojections are formed, and reducing a height of the microprojections. Alternatively, a process for producing a pulley for a belt drive CVT, including subjecting tapered surfaces of a preform of at least one of input and output pulleys to surface hardening, subjecting the surface-hardened tapered surfaces of the preform to shot peening, and subjecting the shot-peened tapered surfaces of the preform to finishing to form microgrooves having a substantially equal pitch thereon.
    • 一种用于制造带驱动CVT的滑轮的方法,包括使输入和输出滑轮中的至少一个的预制件的锥形表面进行表面硬化,对预成型体的表面硬化的锥形表面进行硬转弯,以形成径向间隔开的微槽 在其间形成微孔,并且降低微突出物的高度。 或者,一种用于制造带驱动CVT的滑轮的方法,包括使输入和输出滑轮中的至少一个的预制件的锥形表面进行表面硬化,对预成型体的表面硬化的锥形表面进行喷丸硬化, 预成型件的喷丸硬化锥形表面进行精加工以形成其上具有基本相等的间距的微槽。
    • 9. 发明申请
    • Pulley thrust control device for continuously variable transmission
    • 用于无级变速器的滑轮推力控制装置
    • US20060194671A1
    • 2006-08-31
    • US11354123
    • 2006-02-15
    • Yoshiaki Katou
    • Yoshiaki Katou
    • F16H61/662
    • F16H61/66272Y10T477/6242
    • A control device for a belt continuously variable transmission with a primary pulley, a secondary pulley and a V-belt, includes an oil pressure control unit which applies a thrust to each of the primary pulley and the secondary pulley, and a controller. The controller judges whether or not a pulley ratio is less than 1. When the pulley ratio is less than 1, the controller sets a target thrust of the secondary pulley on the basis of an input torque to the primary pulley and a coefficient of static friction between an element forming the V-belt and the secondary pulley, and then to instruct the oil pressure control unit to apply the target thrust to the secondary pulley. When the pulley ratio is at least 1, the controller sets a target thrust of the primary pulley on the basis of the input torque to the primary pulley and a coefficient of dynamic friction between the element forming the V-belt and the primary pulley, and then to instruct the oil pressure control unit to apply the target thrust to the primary pulley.
    • 一种带有无级变速器的带有主带轮,次级带轮和V型皮带的带式无级变速器的控制装置,包括对初级带轮和次级带轮中的每一个施加推力的油压控制单元和控制器。 控制器判断皮带轮比例是否小于1.当皮带轮比小于1时,控制器根据对主滑轮的输入转矩和静摩擦系数设定副皮带轮的目标推力 在形成V形带的元件和次级带轮之间,然后指示油压控制单元将目标推力施加到次级带轮。 当皮带轮比至少为1时,控制器基于对初级皮带轮的输入转矩和形成V形皮带的元件与主滑轮之间的动摩擦系数来设定主滑轮的目标推力,以及 然后指示油压控制单元将目标推力施加到主滑轮。