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发明授权
CN106870724B 自动变速器的液压供应系统 有权

自动变速器的液压供应系统
摘要：
一种自动变速器的液压供应系统，其可以包括：机械油泵，其流体连接至油盘，以将油供应到流体连接至机械油泵的第一排出路径和第二排出路径；第一开关阀，其流体连接至第一排出路径，并且将油选择性地供应到流体连接至第一开关阀的第一供应路径；第二开关阀，其流体连接至第一排出路径和第二排出路径，并且将第一供应路径中供应的油经由流体连接至第二开关阀的第二供应路径分别选择性地供应到变速器单元和压力控制阀；第一电磁阀致动器和第二电磁阀致动器，第一电磁阀致动器接合至第一开关阀，第二电磁阀致动器接合至第二开关阀；以及电动油泵，其流体连接至油盘，以将油供应到流体连接至第二供应路径的第三供应路径。
摘要（英）：

A hydraulic pressure supply system of an automatic transmission may include a mechanical oil pump fluidly-connected to the oil pan to supply oil to first and second discharge paths fluidly-connected to the mechanical oil pump, a first switch valve fluidly-connected to the first discharge path and selectively supplying oil to a first supply path fluidly-connected to the first switch valve, a second switch valve fluidly-connected to the first and second discharge paths and selectively supplying oil supplied in the first supply path to the transmission unit and a pressure control valve through a second supply path fluidly-connected to the second switch valve, respectively, a first solenoid valve actuator engaged to the first switch valve and a second solenoid valve actuator engaged to the second switch valve, and an electrical oil pump fluidly-connected to the oil pan to supply the oil to a third supply path fluidly-connected with the second supply path.

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