Oil pre-charging system of dual-clutch automatic transmission

An automatic transmission and dual clutch technology, applied in the field of clutches, can solve the problems of slow start of the whole vehicle, stalled shifts, and too slow oil filling and pressure build-up of the clutch, and achieve the effect of high reliability and precision and easy implementation.

Active Publication Date: 2016-02-03
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to solve the problem that the clutch oil filling is too slow to build up pressure; especially in a low temperature environment, it can effectively improve the problems such as slow start of the whole vehicle caused by too slow clutch oil filling and pressure buildup, etc.

Method used

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  • Oil pre-charging system of dual-clutch automatic transmission
  • Oil pre-charging system of dual-clutch automatic transmission
  • Oil pre-charging system of dual-clutch automatic transmission

Examples

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Embodiment Construction

[0035] The technical solution of the present invention is described in detail below through the examples, and the following examples are only exemplary and can only be used to explain and illustrate the technical solution of the present invention, rather than being interpreted as a limitation to the technical solution of the present invention.

[0036] In each drawing of the present application, the dotted line represents the control current curve; the solid line represents the desired pressure value curve; the broken line represents the clutch actual pressure.

[0037] The invention provides a dual-clutch automatic transmission pre-filling system, such as Figure 5 and Figure 6 As shown, it includes the first clutch 01, the second clutch 02, the first pressure control valve 09 and the second pressure control valve 10; in this application, the first clutch, the second clutch, the first pressure control valve and the second The pressure control valves are all prior art, and t...

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PUM

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Abstract

The invention relates to an oil pre-charging system of a dual-clutch automatic transmission. The oil pre-charging system comprises a first clutch, a second clutch, a first pressure control valve and a second pressure control valve, and further comprises a first oil branch and a second oil branch. The first oil branch is connected with a main oil path and the first clutch. The second oil branch is connected with the main oil path and the second clutch. The first oil branch and the second oil branch are both normally opened oil paths. The oil branches are designed to be directly communicated with the main oil path and the clutches without the pressure control valves, and the aim of oil pre-charging of the clutches is achieved. Due to the fact that the oil pre-charging process exists all the time, the problems that under the low-temperature environment, a whole car starts slowly, and gear shifting pauses can be solved.

Description

technical field [0001] The invention belongs to the technical field of clutches, in particular to a dual-clutch automatic transmission pre-filling oil system. Background technique [0002] The outstanding feature of dual-clutch automatic transmission (hereinafter referred to as DCT) is the use of dual clutches. The first set of clutches (K1) is combined with odd-numbered gear sets (including reverse gear sets), while the second set of clutches (K2) is even-numbered. gear set service. The fuel economy and vehicle performance brought by DCT are impeccable, and the shifting process is quick and crisp, surpassing all current automatic or manual transmissions, and there is no power interruption during the shifting process. The characteristics of DCT depend on its unique structure and pre-engagement strategy: if the vehicle is running in 3rd gear, the 4th gear is already engaged, but the second group of clutches (K2) has not been engaged. , the first group of clutches (K1) is qu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/06
CPCF16H61/06F16H2061/062
Inventor 孙建明
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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