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    CONTINUOUSLY VARIABLE TRANSMISSION WITH A HYDRAULIC CONTROL SYSTEM
    2.
    发明授权
    CONTINUOUSLY VARIABLE TRANSMISSION WITH A HYDRAULIC CONTROL SYSTEM 有权
    液压控制系统的连续可变传动

    公开(公告)号：EP2935947B1

    公开(公告)日：2017-08-09

    申请号：EP13826844.6

    申请日：2013-12-18

    申请人： Robert Bosch GmbH

    发明人： VAN WIJK, Wilhelmus Johannes Maria ,  RÖMERS, Lucas Hubertus Johannes

    IPC分类号： F16H61/00 ,  F16H61/662 ,  F16H57/04

    CPC分类号： F16H61/0025 ,  F16H57/0435 ,  F16H57/0441 ,  F16H57/0446 ,  F16H61/66272 ,  F16H2061/0037 ,  F16H2061/6607

    摘要： A continuously variable transmission is provided with a drive belt (6) drive belt (3), fitted between a primary pulley (1) and a secondary pulley (2) of the transmission, each pulley having two pulley sheaves (4, 5) of which at least one pulley sheave (4) in each case is axially movable under the influence of a hydraulic pressure exerted in a pressure cylinder (11; 12) of a respective pulley (1; 2), and with a hydraulic control system for controlling these respective cylinder pressures (Pp, Ps) including two oil pumps (41, 42). A pump flow control valve (100, 48) is provided and is arranged to connect to or disconnect from the main hydraulic line (46) the one oil pump (42) in dependency on a difference between an actual line pressure (Ps) in the main hydraulic line (46) and a desired pressure level there for.

    摘要翻译： 一种无级变速器具有安装在变速器的初级带轮（1）和次级带轮（2）之间的传动带（6）传动带（3），每个带轮具有两个带轮（4,5） （1; 2）的压力缸（11; 12）中施加的液压的影响下，至少一个皮带轮（4）分别轴向移动，并且具有用于控制 这些相应的气缸压力（Pp，Ps）包括两个油泵（41,42）。 提供泵流量控制阀（100,48）并且布置成依赖于所述一个油泵（42）的主油路（46）中的实际管路压力（Ps）与所述一个油泵 主液压管线（46）和所需的压力水平。