Measuring and test method of dynamic transmission efficiency of AMT gear selecting actuator

A technology of actuator and transmission efficiency, which is applied in the field of dynamic transmission efficiency measurement and test of AMT automatic transmission gear selection actuator, and achieves the effect of simple principle and strong real-time performance.

Active Publication Date: 2013-03-20
重庆理工清研凌创测控科技有限公司
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However, the idea of ​​optimizing the design by studying the transmission eff

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  • Measuring and test method of dynamic transmission efficiency of AMT gear selecting actuator
  • Measuring and test method of dynamic transmission efficiency of AMT gear selecting actuator

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[0027] The present invention will be further described below with reference to the drawings and specific embodiments.

[0028] Such as figure 1 As shown, the AMT gear selection actuator includes servo motor 1, worm 2, worm gear 3, gear 4, rack 5, gear selection fork shaft 6, extension shaft 7, etc. The extension shaft 7 is installed on the gear selection fork shaft 6. On one end, and the extension shaft 7 extends out of the transmission housing.

[0029] According to the actual vehicle layout of the AMT gear selection mechanism, install the AMT automatic transmission on the bench, and then select the corresponding force sensor, displacement sensor, torque sensor, encoder and A / D data acquisition card according to the design parameters of the AMT gear selection mechanism , The principle of the dynamic transmission efficiency measurement test method of AMT gear selection actuator is as follows figure 2 As shown, the specific steps are as follows:

[0030] 1) Install an encoder and t...

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Abstract

The invention discloses a measuring and test method of dynamic transmission efficiency of an AMT (automatic mechanical transmission) gear selecting actuator. The measuring and test method comprises the steps that 1), the AMT gear selecting actuator is arranged according to a real vehicle; 2), a servo motor is adopted to substitute a driving motor; 3), an encoder for measuring angular displacement is mounted on an output shaft of the servo motor; a torque transducer for measuring the torque is mounted between the output shaft of the servo motor and an input shaft of a worm; 4), a displacement transducer and a force transducer are mounted at the outer end of an extension shaft for measuring the displacement and thrust; 5), the thrust on a gear selecting fork shaft is calculated and converted into a theoretical torque of the input end of the worm; 6), the displacement of the gear selecting fork shaft is calculated and converted into theoretical angular displacement of the input end of the worm; and 7), dynamic torque transmission efficiency and dynamic displacement transmission efficiency are calculated when the AMT gear selecting actuator works. The method is simple in principle, high in instantaneity, quick and accurate; the serviceability of the AMT gear selecting actuator can be judged; and a reference basis is provided for optimizing 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 dynamic transmission efficiency of an AMT automatic transmission gear selection actuator. Background technique [0002] Compared with the traditional manual transmission (MT), the electromechanical automatic transmission (AMT) cancels the mechanical connection between the transmission and the gear selection handle, so that the design of the gear selection handle is diversified. At the same time, the manual operation part of the transmission and the clutch pedal disappear, which greatly reduces the labor intensity and fatigue intensity of the driver, and the vehicle dynamics, driving safety and comfort are improved. Thirdly, the system controls the engine, clutch and transmission according to the best law, improves the quality of gear selection, reduces the wear of parts, improves the service life and fuel economy of the vehi...

Claims

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Application Information

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IPC IPC(8): G01M13/02
Inventor 石晓辉张志刚施全郝建军邹喜红周大翠
Owner 重庆理工清研凌创测控科技有限公司
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