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    • 46. 发明授权
    • Oil supplying system for an automatic transmission with a hydrodynamic starting device
    • 具有水动力起动装置的自动变速器供油系统
    • US06668978B2
    • 2003-12-30
    • US09938180
    • 2001-08-23
    • Bernd FesslerFriedrich Reiter
    • Bernd FesslerFriedrich Reiter
    • F01M900
    • F16H57/0434F16H41/30F16H61/0021F16H61/143F16H2061/0037Y10T74/19991
    • The invention concerns an oil supply system for an automatic transmission of a motor vehicle having one hydrodynamic starting element. It has one oil pump (2) to convey oil to a variator (9, 10) and/or to shifting elements (12, 13), to a converter unit (19) that can be supplied with oil via two oil lines (23, 25), especially a hydrodynamic torque converter (20) having a converter lock-up clutch (21), and to a lubrication device (28), the same as at least one filter device (3, 31) and one oil cooling device (17). Here are provided one prioritized primary circuit (6) with a main pressure adjusted by a main pressure valve (3) for pressure supply of the variator (9, 10) and/or of the shifting elements (12, 13) and a secondary circuit (7) for oil supply of the lubrication device (28). It is proposed according to the invention that the converter unit (19) be tied to the primary circuit (6) and to the secondary circuit (7) so that the converter lock-up clutch (21) be supplied with a minimum pressure required for torque transmission via the primary circuit (6) parallel to the supply of the lubrication device (28) via the secondary circuit (7) when on the converter lock-up clutch (21) a closing or slipping state is adjusted and that otherwise the converter unit (19) is supplied with oil via the secondary circuit (7).
    • 本发明涉及一种用于具有一个流体动力起动元件的机动车辆的自动变速器的供油系统。 它具有一个油泵(2),用于将油输送到变换器(9,10)和/或移动元件(12,13),以转换到可通过两根油管(23)供应油的转换器单元(19) ,25),特别是具有转换器锁止离合器(21)的液力变矩器(20)和与润滑装置(28)相同的至少一个过滤装置(3,31)和一个油冷却装置 (17)。 这里提供了一个优先级优先的主回路(6),其中主压力由主压力阀(3)调节,用于变压器(9,10)和/或变速元件(12,13)的压力供应和二次回路 (7),用于润滑装置(28)的供油。 根据本发明提出,转换器单元(19)被连接到主电路(6)和次级电路(7),使得转换器锁止离合器(21)被提供有最小的压力 在转换器锁止离合器(21)处于关闭或滑动状态时,通过次级回路(7)平行于润滑装置(28)的供应的主回路(6)的转矩传递被调节,否则转换器 单元(19)通过次级回路(7)供给油。