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Test method for measuring dynamic transmission efficiencies of actuator of AMT clutch

An actuator and transmission efficiency technology, which is applied in the field of dynamic transmission efficiency measurement and test of AMT clutch actuators, can solve the problems of non-standard AMT clutch measurement and test methods, and achieve intuitive and accurate working performance, clear theoretical significance, and working principle. reliable results

Inactive Publication Date: 2015-04-08
CHONGQING UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are no standards for reference at home and abroad on the measurement and test methods of the dynamic transmission efficiency of AMT clutch actuators

Method used

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  • Test method for measuring dynamic transmission efficiencies of actuator of AMT clutch
  • Test method for measuring dynamic transmission efficiencies of actuator of AMT clutch
  • Test method for measuring dynamic transmission efficiencies of actuator of AMT clutch

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0032] Such as figure 1 As shown, the AMT clutch actuator includes a servo motor 1 , a worm 2 , a worm wheel 3 , a gear 4 , a rack 5 , a cable 6 , a return spring 7 , a release fork 8 , a release bearing 9 and a clutch assembly 10 .

[0033] According to the layout position of the AMT clutch in the real vehicle, the AMT automatic transmission is installed on the bench, and the corresponding force sensor, displacement sensor, torque sensor, encoder and data acquisition card are selected according to the design parameters of the AMT clutch. The principle block diagram of the measurement test is as follows: figure 2 As shown, the specific steps are as follows:

[0034] 1) Install a torque sensor and an encoder between the output end of the servo motor 1 and the input end of the worm 2, and install a force sensor and a displacement sensor at the ...

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Abstract

The invention discloses a test method for measuring dynamic transmission efficiencies of an actuator of an AMT (automated mechanical transmission) clutch. The test method comprises the steps that 1), the actuator of the AMT clutch is mounted according to a real vehicle; 2), a drive motor is replaced by a servo motor; 3), an encoder for measuring the angular displacement is mounted on an output shaft of the servo motor; a torque sensor is mounted between the output shaft of the servo motor and an input shaft of a worm; 4), a displacement sensor and a force sensor are mounted at a release bearing respectively; 5), a theoretical torque output to an input end of the worm by the servo motor is calculated; 6), the theoretical angular displacement of the input end of the worm is obtained by calculating; and 7), a dynamic torque transmission efficiency and a dynamic displacement transmission efficiency are calculated when the actuator of the clutch works. The real-time dynamic transmission efficiencies measured by the method when the actuator of the AMT clutch works can be used for quantitatively evaluating the working performance of the actuator of the AMT clutch, and a more accurate control strategy can be established for controlling the AMT clutch according to measured data of the transmission efficiencies.

Description

technical field [0001] The invention relates to the technical field of automobile clutches, in particular to a method for measuring and testing the dynamic transmission efficiency of an AMT clutch actuator. Background technique [0002] With the development of automatic transmission technology, electromechanical automatic transmission (AMT) has become an important development direction of automatic transmission due to its simple structure, high transmission efficiency and low cost, and the number of cars equipped with AMT has been steadily increasing year by year. rise. The key technology of researching and developing AMT automatic transmission lies in the automatic control of its own clutch. The control accuracy and performance of AMT clutch directly affect the working performance of AMT automatic transmission and even the starting and shifting quality of the whole vehicle. However, the control accuracy and performance of the AMT clutch not only depend on the quality of it...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/02
Inventor 张志刚石晓辉邹喜红施全郝建军任洪海
Owner CHONGQING UNIV OF TECH
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