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Control circuit for a variable vane oil pump

A control circuit, variable technology, applied in the direction of pump control, transmission control, pump, etc., can solve the problems of cost increase, layout difficulty, control responsiveness and poor pumping performance, etc., to improve responsiveness and prevent cavitation The effect of the phenomenon

Inactive Publication Date: 2013-06-19
HYUNDAI MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, if the control pressure is generated by using a solenoid, the cost increases and the layout becomes difficult due to the addition of the solenoid
Furthermore, if the control pressure is generated by feedback of the exhaust flow using a regulating valve or using the outflow of a pump, such as figure 2 As shown, the control responsiveness and the suction performance of the pump become worse

Method used

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  • Control circuit for a variable vane oil pump
  • Control circuit for a variable vane oil pump
  • Control circuit for a variable vane oil pump

Examples

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Embodiment Construction

[0034] 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 appreciated 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 alternatives, modifications, equivalents and others, which may be included within the spirit and scope of the invention as defined by the appended claims. implementation plan.

[0035] Exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0036] image 3 is a schematic diagram of a control circuit for a variable vane oil pump according to an exemplary embodiment of the present invention.

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Abstract

A control circuit for a variable vane oil pump of an automatic transmission vehicle may include the variable vane oil pump supplying a working fluid for controlling the automatic transmission, a regulator valve mounted at a hydraulic line fluid-connected to the variable vane oil pump, and a torque converter control valve fluid-connected to the regulator valve for controlling the working fluid supplied from the regulator valve to have a pressure required in a torque converter, wherein the variable vane oil pump may be controlled by an amount of the working fluid discharged from the torque converter control valve.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from Korean Patent Application No. 2011-0132261 filed in the Korean Intellectual Property Office on Dec. 9, 2011, the entire contents of which are hereby incorporated by reference for all purposes. technical field [0003] The invention includes a control circuit for a variable vane oil pump. More particularly, the present invention relates to such a control circuit for a variable vane oil pump whose cam ring can be optimally controlled. Background technique [0004] Generally, a transmission control unit (TCU) for an automatic transmission controls friction elements (operating elements) such as clutches and brakes by controlling a plurality of solenoid valves. [0005] The discharge flow of stationary oil pumps is usually small at low speeds and large at high speeds. [0006] However, the discharge performance of the oil pump required for lubricating, cooling, and operating the frict...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/00
CPCF16H61/0021F16H61/50F04C2/344F04C14/226F04C2270/185F16H61/4183F16H61/38
Inventor 赵源珉
Owner HYUNDAI MOTOR CO LTD