Automated mechanical transmission (AMT) gear selecting actuator transmission efficiency measuring test method

A technology for actuators and transmission efficiency, which is applied in the field of transmission efficiency measurement and test of AMT automatic transmission gear selection actuators, can solve the problems of AMT gear selection actuator structure, meshing friction, poor sliding and lubrication, energy loss, etc., to achieve Intuitive and accurate working performance, simple structure and reliable working principle

Inactive Publication Date: 2014-12-03
CHONGQING UNIV OF TECH +1
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AI Technical Summary

Problems solved by technology

During the working process of the AMT gear selection actuator, the transmission pairs of the actuator have the effects of meshing friction, sliding and poor lubrication, resulting in energy loss
[0004] At present, most of the research stays in the optimization and improvement of the structure of the AMT gear selection actuator, and the idea of ​​optimizing the design by studying the transmission efficiency of the AMT gear selection actuator is rarely seen at home and abroad.

Method used

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  • Automated mechanical transmission (AMT) gear selecting actuator transmission efficiency measuring test method
  • Automated mechanical transmission (AMT) gear selecting actuator transmission efficiency measuring test method

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0028] like figure 1 As shown, the transmission efficiency measurement device of the AMT gear selection actuator is mainly composed of a servo motor 1, an intermediate actuator 2, a gear selection shaft 3, a gear selection fork 4, an encoder 5, a torque sensor 6, a force sensor 7, and a grating displacement sensor 8 , loader 9, data collector 10 and computer system 11.

[0029] AMT gear selection actuator transmission efficiency measurement test method, the measurement principle in this method is as follows figure 2 As shown, the method includes the following steps:

[0030] 1) Install the AMT gear selection actuator according to the actual vehicle installation method.

[0031] 2) Replace the driving motor in the AMT selection and shifting actuator with a servo motor.

[0032] 3) An encoder is installed on the output shaft of the servo mot...

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Abstract

The invention discloses an automated mechanical transmission (AMT) gear selecting actuator transmission efficiency measuring test method which includes the steps of installing an AMT gear selecting actuator according to a real vehicle, utilizing a servo motor to replace a drive motor, installing an encoder measuring angular displacement on an output shaft of the servo motor, installing a torque sensor between the output shaft of the servo motor and an input shaft of an intermediate actuator, installing a force sensor between a gear selecting shaft and an input shaft of a loader, installing a grating displacement sensor between the gear selecting shaft and the input shaft of the loader, collecting measuring parameters of time ti and time t (i+1), figuring out the input power of a motor and the output power of a gear selecting shifting fork, and calculating the transmission efficiency of the AMT gear selecting actuator. The method can measure the transient transmission efficiency and the overall transmission efficiency of the gear selecting actuator rapidly and accurately, can visually and accurately judge whether the working performance of the gear selecting actuator is good or not, and provides reference for the optimization of the AMT gear selecting actuator.

Description

technical field [0001] The invention relates to the technical field of automobile transmissions, in particular to a method for measuring and testing the transmission efficiency of an AMT automatic transmission gear selection actuator. Background technique [0002] AMT is the abbreviation of Automated Mechanical Transmission, which is improved on the basis of the existing manual transmission. The AMT automatic transmission of the prior art improves the disadvantages of low transmission efficiency, complex structure and high cost of the AT automatic transmission, and the application of modern electronic technology retains the advantages of AT and gear transmission, greatly improving the efficiency of gear shifting and dynamic performance. [0003] The AMT actuator is a key link in the development of AMT technology. Its performance will directly affect the overall performance of AMT. However, the transmission efficiency of its actuator is an important reference index to reflec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L3/26
Inventor 张志刚石晓辉郝建军葛帅帅施全邹喜红
Owner CHONGQING UNIV OF TECH
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