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Hydraulic pressure supply system of automatic transmission for vehicle

A technology of automatic transmission and hydraulic supply, which is applied to the transmission device, fluid transmission device, transmission device control, etc., and can solve the problem of increasing the oil volume of the transmission

Inactive Publication Date: 2015-02-11
HYUNDAI MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, if the oil temperature increases, the amount of oil required for the transmission further increases

Method used

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  • Hydraulic pressure supply system of automatic transmission for vehicle
  • Hydraulic pressure supply system of automatic transmission for vehicle
  • Hydraulic pressure supply system of automatic transmission for vehicle

Examples

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Embodiment Construction

[0057] Reference will now be made in detail to various embodiments of the invention, examples of which are illustrated in the accompanying drawings and described below. While the invention will be described in conjunction with exemplary embodiments, it will be understood that present description is not intended to limit the invention to those exemplary embodiments. On the contrary, the invention is intended to cover not only the exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments, which may be included within the spirit and scope of the invention as defined by the appended claims.

[0058] Descriptions of components that are not necessary for explaining the respective embodiments will be omitted, and the same constituent elements are denoted by the same reference numerals in this specification.

[0059] In the detailed description, ordinal numbers are used to distinguish constituent elements having the same terms without speci...

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Abstract

A hydraulic pressure supply system of an automatic transmission for a vehicle may be provided with first and second pump chambers and may supply hydraulic pressure generated at the first and second pump chambers selectively to a high pressure portion or the high pressure portion and a low pressure portion. The hydraulic pressure generated at the first pump chamber may be supplied to the high pressure portion through a high-pressure regulator valve, and the hydraulic pressure generated at the second pump chamber may be supplied to the low pressure portion through a low-pressure regulator valve or may be supplied to the high-pressure regulator valve according to switching operation of a switch valve.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from Korean Patent Application No. 10-2013-0089489 filed on Jul. 29, 2013, the entire contents of which are hereby incorporated by reference for all purposes. technical field [0003] The invention relates to a hydraulic supply system for an automatic transmission of a vehicle. More specifically, the present invention relates to a hydraulic pressure supply system for an automatic transmission of a vehicle, which increases the amount of oil in a low-pressure portion by supplying recirculated hydraulic pressure to the low-pressure portion in a semi-discharge mode, and by Hydraulic pressure reduces hydraulic pressure in the low pressure section and reduces rotational speed for entering semi-emission mode to improve fuel economy. Background technique [0004] The gear pump is mainly used as a hydraulic pump applied to a hydraulic supply system of an automatic transmission for a vehicle. H...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/38F16H57/04
CPCF16H61/4017F04C2/3446F04C2270/185F16H61/0025F16H2061/0037F16H57/04F16H61/4008F16H61/4043F16H61/431
Inventor 魏泰焕
Owner HYUNDAI MOTOR CO LTD
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