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    • 107. 发明授权
    • Automatic transmission hydraulic circuit
    • 自动变速器液压回路
    • US6146311A
    • 2000-11-14
    • US347543
    • 1999-07-06
    • Steven Patrick Moorman
    • Steven Patrick Moorman
    • F16D25/00F16H61/06F16H61/08F16H61/04B60K41/02F16D19/00
    • F16H61/067F16D25/00Y10T477/6425Y10T477/69377
    • A hydraulic circuit for an automatic transmission operable to reduce time delay in shifting includes a source supplying pressurized fluid through a feed orifice and a charging circuit including an accumulator. The accumulator is downstream of the feed orifice, and operates to reserve pressurized fluid supplied by the source. The hydraulic circuit also includes a clutch circuit, downstream of the charging circuit, which has a clutch hydraulically actuated and operable to generate torque to shift the automatic transmission. A valve is interposed between the charging circuit and the clutch circuit to open a flow path therebetween to start a shift cycle of the clutch. When the valve is actuated, the pressurized fluid is released from the accumulator and flows to the clutch circuit to minimize delay in the shift.
    • 用于可移动以减少换档时间延迟的自动变速器的液压回路包括通过供给孔供给加压流体的源和包括蓄能器的充电电路。 蓄能器在进料孔的下游,并且用于保留由源供应的加压流体。 液压回路还包括在充电回路的下游的离合器回路,其具有液压驱动的离合器,并可操作以产生转矩以使自动变速器移位。 在充电回路和离合器回路之间插入一个阀,以打开它们之间的流路,开始离合器的换档循环。 当阀被致动时,加压流体从蓄能器释放并流到离合器回路以最小化换挡延迟。