A kind of amt offline detection method

Abstract

An AMT offline detection test bench of the invention includes a power device, a clutch and a host computer; the output end of the power device is provided with a first flywheel; the pressure plate of the clutch is fixed on the first flywheel, and the friction plate is provided with an output end and a transformer to be tested The transmission shaft is connected to the transmission input shaft of the transmission, and the release bearing of the clutch is fitted on the transmission shaft; the IO port of the host computer and the clutch valve of the clutch are respectively connected with the IO port of the control unit of the transmission under test; the IO port of the host computer is also separately The control end of the power unit is connected with the control part of the clutch, and the input port of the upper computer is connected with the feedback part of the clutch. The detection method of the present invention includes the following steps: 1) testing the air tightness of the transmission under test, and connecting the air source interface of the wiring harness interface; 2) turning on the power for initialization; 3) entering the self-learning mode; 4) each solenoid valve state and sensor signal test; 5) power take-off switch test; 6) end detection by generating test report.

Description

technical field [0001] The invention relates to the off-line detection of a transmission, in particular to an AMT off-line detection test bench and a detection method thereof. Background technique [0002] Since the electronically controlled automatic transmission (AMT) shift is automatically completed by the electronic control system, the existing transmission off-line testing test bench cannot meet the off-line testing requirements of the electronically controlled mechanical automatic transmission (AMT). It is imported from abroad. On the one hand, the AMT offline testing test bench is expensive and the cost is too high to adapt to the domestic market. The existing transmission off-line detection test bench requires manual gear shifting, and the AMT's shift selection and clutch disengagement and engagement are automatically completed by the AMT control unit. Therefore, the existing transmission off-line detection test bench cannot be used. It meets the requirements of AMT...

AI Technical Summary

Problems solved by technology

[0002] Since the gear selection and shifting of the electromechanical automatic transmission (AMT) is automatically completed by the electronic control system, the existing transmission off-line testing test bench cannot meet the off-line testing requirements of the electromechanical automatic transmission (AMT), and is imported from abroad. On the one hand, the AMT offline detection test bench is expensive, and the cost is too high to adapt to the domestic market

The existing transmission off-line detection test bench needs to be manually shifted, and the AMT's gear selection and clutch separation and engagement are automatically completed by the AMT control unit. Therefore, the existing transmission off-line detection test bench cannot Meet the requirements of AMT's off-line detection; while the foreign AMT's off-line detection test bench is not only very expensive, but also does not detect the control of the clutch

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