发明名称 |
Hydraulic pressure supply system of automatic transmission |
摘要 |
A hydraulic pressure supply system of an automatic transmission for a vehicle is disclosed. The hydraulic pressure supply system of an automatic transmission for a vehicle may supply a low hydraulic pressure generated at a low-pressure hydraulic pump to a low pressure portion through a low-pressure regulator valve, may supply a portion of the low hydraulic pressure to a high-pressure hydraulic pump, and may supply a high hydraulic pressure generated at the high-pressure hydraulic pump to a high pressure portion through a high-pressure regulator valve. |
申请公布号 |
US9476502(B2) |
申请公布日期 |
2016.10.25 |
申请号 |
US201314088979 |
申请日期 |
2013.11.25 |
申请人 |
Hyundai Motor Company |
发明人 |
Jo Se Hwan;Hwang Jin Young;Wi Taehwan |
分类号 |
F16H61/02;F16H61/00 |
主分类号 |
F16H61/02 |
代理机构 |
Morgan, Lewis & Bockius LLP |
代理人 |
Morgan, Lewis & Bockius LLP |
主权项 |
1. A hydraulic pressure supply system of an automatic transmission for a vehicle, wherein the hydraulic pressure supply system generates a low hydraulic pressure and a high hydraulic pressure using an oil stored in an oil pan and supplies the low hydraulic pressure and the high hydraulic pressure respectively to a low pressure portion and a high pressure portion, the hydraulic pressure supply system comprising:
a low-pressure hydraulic pump receiving the oil stored in the oil pan through an input line, generating the low hydraulic pressure, and discharging the low hydraulic pressure to a first low-pressure line; a first switch valve selectively connecting the first low-pressure line to a second low-pressure line or blocking the first low-pressure line from the second low-pressure line; a low-pressure regulator valve regulating hydraulic pressure supplied from the first switch valve through the second low-pressure line to a stable low hydraulic pressure, and supplying the regulated low hydraulic pressure to the low pressure portion through a third low-pressure line; a high-pressure hydraulic pump increasing the hydraulic pressure supplied from the low-pressure hydraulic pump through the first low-pressure line to generate the high hydraulic pressure, and discharging the high hydraulic pressure to a high-pressure line; a second switch valve selectively connecting the first low-pressure line to the high-pressure line or blocking the first low-pressure line from the high-pressure line; and a high-pressure regulator valve disposed on the high-pressure line, regulating the hydraulic pressure supplied from the high-pressure hydraulic pump and the hydraulic pressure supplied from the second switch valve to a stable high hydraulic pressure, and supplying the regulated high hydraulic pressure to the high pressure portion. |
地址 |
Seoul KR |