Abstract
The dual clutch automatic transmission (DCT) technology can realize powerless interruption of the shifting process, and its hydraulic control system is a complex hydraulic valve body. The cooling lubricating oil circuit is very important for the lubrication of the clutch and the adjustment of the transmission oil temperature. This paper mainly analyzed the influence of the damping hole on the dynamic characteristics of the system in the lubricating oil circuit. Based on AMESIM software, the simulation model of the lubrication regulating main valve was established. The influence of the size of the damping hole on the output pressure, the lubrication flow of the output clutch and the lubrication flow of the output gear shaft were analyzed under the flow rate step condition. Combined with the vibration of the system, it was found that the reasonable diameter interval of the damping hole was 1.8∼2.3 mm.
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