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

AMT (Automatic Mechanical Transmission) synchronizer fatigue life testing method and test bench for realizing method

A technology of fatigue life and test method, which is applied in the field of automobile transmission, can solve problems such as fatigue life test verification of synchronizers of automobile mechanical automatic transmissions, and achieve the effect of ensuring reliability

Inactive Publication Date: 2014-01-22
ZHEJIANG GEELY HLDG GRP CO LTD +1
View PDF7 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, there is still no special test method to test and verify the fatigue life of the synchronizer of the automobile mechanical automatic transmission.

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
  • AMT (Automatic Mechanical Transmission) synchronizer fatigue life testing method and test bench for realizing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0035]In order to fill in the blank of the mechanical automatic transmission synchronizer fatigue life test method in the prior art, the present invention proposes a mechanical automatic transmission synchronizer fatigue life test method and a test bench for realizing the test method.

[0036] Mechanical automatic transmission synchronizer fatigue life test method of the present invention, its steps are as follows:

[0037] (1) Provide lubricating oil for the transmission to be tested, and the oil temperature is controlled at 80°C to 90°C;

[0038] (2) According to a cycle of 5 to 6 seconds, the switching test of multiple gears is carried out, and the switching test process of every two gears is as follows: the initial input speed is lower than the maximum output power of the engine. The transmission is running, and the transmission under test...

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 an AMT (Automatic Mechanical Transmission) synchronizer fatigue life testing method and a test bench for realizing the method, belonging to the technical field of automobile transmission. The testing method is characterized in that quite many times of gear shifting tests are performed on two gears of all conventional gear shifting of an AMT synchronizer to be tested, and the fatigue life of the AMT synchronizer is judged according to the state of an AMT to be tested in the entire testing process. The test bench comprises a control cabinet, a variable-speed motor, a synchronizing belt, a transmission shaft, a computer, an automatic transmission control unit installation base and a to-be-tested AMT installation base. By adopting the technical scheme provided by the invention, the AMT synchronizer fatigue life testing method and the test bench for realizing the method have the advantages that the technical scheme is simple and easy to implement, the fatigue life of the synchronizer of the AMT of an automobile is proved, the synchronizer is enabled to meet the requirement on the life of the AMT of the automobile, the reliability of the synchronizer is guaranteed and the blank of the AMT synchronizer fatigue life testing method is filled.

Description

technical field [0001] The invention belongs to the technical field of automobile transmission, and relates to a test method and a test stand for a synchronizer. Background technique [0002] With the continuous improvement of transmission technology, the trend is from manual transmission to automatic transmission. Mechanical automatic transmission (AMT) is obtained by adding an electronically controlled automatic transmission control system on the basis of the original manual transmission. It has been widely used for its advantages of simple operation, low cost and reliable operation. [0003] For the transmission, the shifting comfort directly affects the comfort of the vehicle. Synchronizer is the main part of gear shifting, and its design, manufacturing precision and fatigue life directly affect the gear shifting performance of the transmission. If the synchronizer fails during the shifting process, there will be abnormal noise during shifting, and in severe cases, the...

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): G01M13/02
Inventor 赵烤蕊扈琳张新桂陈勇罗大国冯擎峰
Owner ZHEJIANG GEELY HLDG GRP 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