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Washing control system for double-clutch automatic gearbox

A technology of automatic transmission and flushing system, which is applied in vehicle cleaning, electrical program control, program control in sequence/logic controller, etc. It can solve the problem of affecting the normal operation of solenoid valves and affecting the safe driving of wet dual-clutch automatic transmissions , blockage of solenoid valves, etc., to avoid excessive pressure rise, easy data collection, and flexible cleaning

Active Publication Date: 2012-12-26
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the wet dual-clutch automatic transmission does not have the function of cleaning and controlling the solenoid valve. During the long-term use of the wet dual-clutch automatic transmission, impurities will block the solenoid valve, affecting the normal operation of the solenoid valve, and ultimately affecting the wet dual-clutch automatic The safe driving of the gearbox, so it is essential to flush and clean the solenoid valve

Method used

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  • Washing control system for double-clutch automatic gearbox
  • Washing control system for double-clutch automatic gearbox
  • Washing control system for double-clutch automatic gearbox

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Embodiment

[0033] The flow chart of the flushing control of the electromagnetic valve of the wet dual-clutch automatic gearbox of the present invention is as attached figure 1 shown. Accelerator pedal position, brake pedal position and shift lever position are collected (1). Determine whether the collected accelerator pedal is depressed, whether the preferred opening is greater than 40%, whether the brake pedal is depressed, whether the preferred opening is greater than 40%, and whether the shift handle is in position P (2). If the accelerator pedal is greater than 40%, the brake pedal opening is greater than 40%, and the shift lever is in the P position (3), judge whether the pressure of clutch 1 and clutch 2 are both 0, if so, it means that clutch 1 and clutch 2 are disengaged (4). If clutch 1 and clutch 2 are disengaged, call COV1, CPCV1 cleaning function (5), if CPCV1 cleaning function ends, call COV2, CPCV2 cleaning function (6), if COV2, CPCV2 cleaning ends, call MPCV cleaning fu...

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Abstract

The invention relates to an electric control system for a double-clutch automatic gearbox. In the electric control system, a washing set for a solenoid valve of a wet type double-clutch automatic gearbox mainly comprises a solenoid valve, a clutch 1 pressure control valve (CPCV1), a clutch 2 pressure control valve (CPCV2), a switch valve 1 (COV1), a switch valve 2 (COV2), a main oil pressure control valve (MPCV), a gear pressure control valve 1 (GPCV1), a gear fork direction control valve 1 (GASV1), a position selecting valve 1 (SCV1), a gear pressure control valve 2 (GPCV2), a gear fork direction control valve 2 (GASV2) and a position selecting valve 2 (SCV2). According to the electric control system, the algorithm is easy to realize, the data collection is convenient and the maneuverability is strong; compared with the other domestic wet type double-clutches, the electric control system has the advantages that a washing control function for the solenoid valve is added, the fault occurrence rate of the gearbox is reduced and the safety is increased; and the routine maintenance and preservation for the gearbox are easy to perform.

Description

technical field [0001] The invention belongs to the technical field of automobile transmissions, and in particular relates to an electronically controlled control system of a dual-clutch automatic transmission. Background technique [0002] A typical wet dual clutch automatic transmission has two clutches, inner and outer. The outer clutch is connected with the outer input shaft and controls the odd gears; the inner clutch is connected with the inner input shaft and controls the even gears. Electro-hydraulic control is used to drive the solenoid valve to realize gear change and clutch alternate work, and finally realize gear shift automation. [0003] At present, the wet dual-clutch automatic transmission does not have the function of cleaning and controlling the solenoid valve. During the long-term use of the wet dual-clutch automatic transmission, impurities will block the solenoid valve, affecting the normal operation of the solenoid valve, and ultimately affecting the w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/04B60S1/62
Inventor 徐瑞雪桂鹏程刘旅行黄孝奎张友皇胡亮
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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