Gear switching control method for automatic transmission of wet dual clutch

A wet dual-clutch, automatic shifting technology, applied in transmission control, components with teeth, belts/chains/gears, etc., can solve problems such as insufficient displacement control accuracy of the fork, and achieve improved reliability and comfort. Avoid vibration and noise, improve the effect of shifting quality

Inactive Publication Date: 2017-12-29
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
View PDF7 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a gear switching control method of a wet dual-clutch automatic transmission to solve the technical problem of insufficient control p

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Gear switching control method for automatic transmission of wet dual clutch

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0018] The embodiments described below with reference to the accompanying drawings are exemplary, and are only used to explain the present invention, and cannot be construed as limiting the present invention.

[0019] Aiming at the problem that the gear shift of the wet dual-clutch automatic transmission in the prior art combined with the separation control strategy adopts open-loop control for the displacement control of the shift fork, which results in insufficient displacement control accuracy of the shift fork and affects the shift quality, the present invention is implemented The example provides a method for controlling the shift of the wet dual-clutch automatic transmission. The wet dual-clutch automatic transmission gear switching control method of the present invention changes the control of the shift fork from open-loop control to closed-loop control by optimizing the gear combined with the separation control strategy. The actual displacement of the shift fork is measure...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a gear switching control method for an automatic transmission of a wet dual clutch. Control on a shifting fork is changed into closed-loop control from the traditional open-loop control by optimization of a gear engagement and separation control strategy, feedback is carried out when error exists between the measured actual displacement of the shifting fork and the expected displacement, and then the displacement of the shifting fork is controlled effectively. Compared with the prior art, the gear switching control method for the automatic transmission of the wet dual clutch has the advantages that the precision of control on the position of the shifting fork can be improved, furthermore, reliability and comfort of gear shifting can be improved, impact and noises during gear shifting are reduced, the gear shifting quality is improved, and the problem that vibration and noises are caused by the reason that the shifting fork cannot be engaged or is engaged too fast is avoided.

Description

technical field [0001] The invention relates to the technical field of gearbox control, in particular to a gear switching control method of a wet double-clutch automatic gearbox. Background technique [0002] Dual-clutch automatic transmission 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. [0003] Since the shifting time of the dual-clutch automatic transmission is extremely short, in order to meet the needs of fast shifting, the combination or separation control of gears must be carried out quickly and smoothly. The combination and separation of the gears of the dual clutch automatic transmission is realized by controlling the movement of the shift fork, and the shift fork control strategy has an important impact on the performance and service life of the d...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F16H59/08F16H61/04F16H63/36
CPCF16H59/08F16H61/0437F16H63/3023F16H63/36F16H2061/0459
Inventor 涂安全李星罗贤虎徐富家张金超丛成刚
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap