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A method and system for controlling gear removal with a dual-clutch shift fork

A control method, dual-clutch technology, applied in the direction of transmission control, components with teeth, belts/chains/gears, etc., can solve problems such as failure to remove gears, long time for removing gears, and impact when removing gears

Active Publication Date: 2018-10-30
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the pressure control of the existing shift fork shifting control is not stable, and it is prone to the problem of long shifting time or even the failure of shifting, and the problem of shock and noise caused by excessive pressure

Method used

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  • A method and system for controlling gear removal with a dual-clutch shift fork
  • A method and system for controlling gear removal with a dual-clutch shift fork
  • A method and system for controlling gear removal with a dual-clutch shift fork

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Embodiment Construction

[0052] In order to enable those skilled in the art to further understand the features and technical contents of the present invention, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings and implementation methods.

[0053] Such as figure 1 As shown, it is a flow chart of the dual-clutch shift fork gear removal control method according to the embodiment of the present invention, which includes the following steps:

[0054] Step 101: start.

[0055] Step 102: Determine the current shifting position according to the working condition of the whole vehicle.

[0056] It should be noted that, in the embodiment of the present invention, the transmission control unit executes the control process, and the transmission control unit can obtain the vehicle operating conditions through the vehicle CAN network, specifically, communicate with the engine control unit through the CAN bus, so as to obtain the vehicle operating ...

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Abstract

The invention relates to the technical field of dual-clutch transmission control and discloses a dual-clutch shifting-fork gear disengagement control method and system. The method comprises the steps of determining a current disengaged gear according to the working condition of a finished vehicle; outputting a first constant pressure value to a shifting fork pressure solenoid valve according to the current disengaged gear; after the first constant pressure value is output to the shifting fork pressure solenoid valve and a first period of time passes, obtaining a shifting fork displacement value; and according to the shifting fork displacement value, conducting first PID control on the shifting fork pressure solenoid valve till it is confirmed that a shifting fork is located at the middle position through the shifting fork displacement value, wherein the middle position is the position where the shifting fork is located after gear disengagement is completed. By means of the dual-clutch shifting-fork gear disengagement control method and system, steady operation of gear disengagement is guaranteed, and meanwhile, driving comfort is not affected.

Description

technical field [0001] The present invention relates to the technical field of dual-clutch transmission control, in particular to a dual-clutch shift fork shift control method and system. Background technique [0002] Dual Clutch Transmission (DCT) combines the advantages of manual transmission and hydraulic automatic transmission. It has high transmission efficiency and simple structure, which not only improves the power and economy of the vehicle, but also greatly improves the driving comfort of the vehicle. sex. Dual clutch automatic transmission includes: power input device, dual clutch, transmission shaft, driven shaft and power output end; two clutches are coaxially nested or arranged in parallel, and the active part of the clutch housing connected to the clutch always runs at the same speed as the engine; When the clutch is engaged, the power input device transmits the power of the engine to the driven part of the dual clutch. At the same time, the power is also tran...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H61/02F16H61/26
CPCF16H61/0265F16H61/26
Inventor 朱成马培义胡亮徐瑞雪张友皇
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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