| 摘要 |
<p>The present invention relates to a hydraulic pressure supply system for an automatic vehicle transmission. The hydraulic pressure supply system according to an embodiment of the present invention includes: an oil pump; a high-pressure regulating valve; a first switch valve; a second switch valve; and a low-pressure regulating valve. The oil pump includes a first pump chamber and a second pump chamber on the inside. The pump chambers are respectively connected to an oil fan through respective suction flow paths and are configured to provide the generated hydraulic pressure for a high-pressure unit and a low-pressure unit of the automatic transmission through discharge flow paths. The high-pressure regulating valve is arranged on a high-pressure flow path connected to the high-pressure unit to reliably control the hydraulic pressure supplied to the high-pressure unit from the first and second pump chambers through the high pressure flow path. The high-pressure regulating valve also supplies the redundant hydraulic pressure to the low-pressure unit through a first recirculation flow path.</p> |
