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Method and system for controlling main oil pressure of wet dual clutch

A technology of wet double clutch and control method, applied in transmission control, components with teeth, belts/chains/gears, etc. The effect of automatic control

Active Publication Date: 2018-11-06
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a method and system for controlling the main oil pressure of a wet double clutch, which solves the problem that the main oil pressure is easily too high or too small in the prior art

Method used

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  • Method and system for controlling main oil pressure of wet dual clutch
  • Method and system for controlling main oil pressure of wet dual clutch
  • Method and system for controlling main oil pressure of wet dual clutch

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Embodiment Construction

[0059] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar parameters or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0060] The invention provides a wet dual-clutch main oil pressure control method and system, which treats the main oil pressure differently when the vehicle is in P gear or N gear, and can effectively solve the problem of main oil pressure required at this time and when the vehicle is in motion. The problem of the large difference in the required main oil pressure. At the same time, it is also judged according to the opening of the accelerator whether the driver has the intention to drive. If so, the main oil pressure suitable for the d...

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Abstract

The invention discloses a wet-type double-clutch main oil pressure control method and system. The method comprises the steps that whether a gear shifting handle is located on a gear P or a gear N or not is judged, and if yes, the maximum value among expected pressure corresponding to torque corresponding to the current accelerator opening degree, expected pressure of a clutch 1 and expected pressure of a clutch 2 serves as main oil pressure; if not, the current working condition of a whole vehicle is obtained; alternative main oil pressure is obtained according to the current working condition of the whole vehicle; the expected pressure corresponding to torque corresponding to the current accelerator opening degree is obtained; and the alternative main oil pressure and the maximum value among the expected pressure corresponding to the torque corresponding to the current accelerator opening degree, the expected pressure of the clutch 1 and the expected pressure of the clutch 2 serve as the main oil pressure. The method and the system can reduce the oil consumption amount to the greatest extend while ensuring that the wet-type clutches work normally.

Description

technical field [0001] The invention relates to the field of clutch control, in particular to a wet double clutch main oil pressure control method and system. Background technique [0002] The wet clutch automatic transmission has been paid more and more attention due to the advantages of fast shifting speed and high transmission efficiency. The working principle of the wet clutch is as follows: During the clutch engagement process, the pressure oil enters the side of the clutch cylinder through the oil passage and pushes the piston to the other side. The side movement presses the friction plate to realize the synchronous movement of the driving side and the driven side of the clutch. During the oil filling process of the clutch, the pressure relief hole is sealed by the barrier, so there is no pressure oil leakage; while in the oil discharge stage, the barrier no longer blocks the pressure relief hole under the action of centrifugal force, and the pressure relief hole is op...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H61/02F16H63/42
CPCF16H61/02F16H63/42
Inventor 徐瑞雪尹良杰张友皇马培义王祺明
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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