Oil charging and semi-linkage-point self-learning method of double-clutch automatic transmission

A technology of automatic transmission and double clutch, which is applied in the direction of transmission, fluid transmission, and components with teeth, etc., can solve problems such as impact, and achieve the effect of improving adaptability and reducing deviation

Active Publication Date: 2016-12-14
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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Problems solved by technology

[0007] The purpose of the present invention is to provide a method of oil filling and semi-linkage point self-learning for dual-clutch automatic transm

Method used

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[0029] The following embodiments illustrate the technical solutions of the present invention in detail. The following embodiments are only exemplary, and can only be used to explain and illustrate the technical solutions of the present invention, and cannot be construed as limiting the technical solutions of the present invention.

[0030] The invention provides an oil filling method for a dual-clutch automatic gearbox, which includes the following steps: image 3 with Figure 4 As shown, the oil filling method also includes the desired pressure 3 and the actual oil filling pressure 4.

[0031] First of all, it is necessary to calibrate the dual-clutch automatic transmission at different oil temperatures, different filling pressures, and how many setting stages the corresponding filling pressure is divided into. Specifically, according to the difference of the oil temperature in the oil pan, when the gearbox shifts , The difference in oil filling pressure in different gears is divided

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Abstract

The invention relates to an oil charging and semi-linkage-point self-learning method of a double-clutch automatic transmission. After an oil charging control module receives an oil charging command, the oil charging control module receives a present oil temperature detected by a sensor, and divides the oil charging pressure of a clutch into set phases according to the present oil temperature; and then, the oil charging control of the clutch is finished by an oil pressure step ascending mode. The method adopts an interpolation segmented ascending step oil charging method to reduce the clutch pressure impact problem and to prolong the service life of a hydraulic actuation unit; as the oil charging pressure is equally divided, the moving amplitude of an electromagnetic valve is relatively lower, the blockage is not easy to generate, the service life is prolonged, and the fault generation frequency is reduced; and meanwhile, the method is higher in response speed and precision.

Description

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Claims

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Application Information

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Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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