Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method of estimating torque of transmission clutch

一种离合器扭矩、变速器的技术，应用在离合器、仪器、转矩计量等方向，能够解决差异、离合器扭矩有误差等问题

Active Publication Date: 2015-06-17
HYUNDAI MOTOR CO LTD +1
View PDF5 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the point in time at which clutch torque information is requested always corresponds to an engine transient (creep, disengagement, etc.), so there is a discrepancy between the engine torque from the ECU and the actual torque
Therefore, the estimated clutch torque based on the uncertain engine torque will also be in error, which is problematic

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
  • Method of estimating torque of transmission clutch
  • Method of estimating torque of transmission clutch
  • Method of estimating torque of transmission clutch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] Reference will now be made in detail to various embodiments of the invention, examples of which are illustrated in the accompanying drawings and described below. While the invention has been described in conjunction with exemplary embodiments, it will be understood that the present description is not to limit the invention to those exemplary embodiments. On the contrary, the invention is intended to cover not only these exemplary embodiments but also various alternatives, modifications, equivalents and other embodiments, which can be included in the Within the spirit and scope of the present invention defined by the claims.

[0018] Wherever possible, the same reference numbers will be used throughout the drawings and the specification to refer to the same or like parts.

[0019] figure 1 is a block diagram illustrating a method of estimating clutch torque according to various embodiments of the present invention, figure 2 A and 2B are flowcharts illustrating metho...

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

A method of estimating a torque of a transmission clutch may include adjusting an error, deducing an estimated engine angular speed and deducing an estimated clutch torque. The error may be adjusted by deducing an engine transient torque based on an engine angular speed measured using a sensor, an engine static torque deduced using a data map and a load torque depending on a driving load. The estimated engine angular speed may be deduced based on the engine static torque and the engine transient torque. The estimated clutch torque may be deduced by summing an integration value and an error compensation value. The integration value and the error compensation value may be deduced based on a difference between the estimated engine angular speed and the measured engine angular speed.

Description

technical field [0001] The present invention relates generally to a transmission clutch and, more particularly, to a method of accurately estimating the torque of a transmission clutch transmitted through dry clutch slip of a dual clutch transmission. Background technique [0002] Recently, the development of dual clutch transmissions (DCTs) is actively underway because DCTs can achieve not only the driving convenience of automatic transmissions but also the high fuel efficiency and high power efficiency of manual transmissions. DCTs are semi-automatic transmissions based on manual transmission systems in which two torque transmission shafts are provided and clutches are controlled automatically without the need for a torque converter. DCTs have the advantage of high fuel efficiency. However, in a DCT system using a dry clutch, the two working parts of the clutch are directly engaged without a torque converter, so the starting and transmission performance of the vehicle dep...

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
Patent Type & Authority Applications(China)
IPC IPC(8): F16D48/06
CPCG01L1/2206F16D2500/3067F16D2500/3165F16D2500/70247F16D2500/7048F16D2500/7061F16D2500/70668G01L1/246G01L3/242F16D48/06F16H59/16F16H59/36F16H61/14G01L3/00A61B6/04
Inventor 金镇成
Owner HYUNDAI MOTOR CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com