METHOD OF SEARCHNG FOR SYNC START IN AUTOMATED MANUAL TRANSMISSION

摘要

A method of searching for a sync start in an automated manual transmission includes manual transmission mechanism operated using an actuator. This method can accurately search for a sync start that acts as an important reference for the control in a shift operation so that the sync start can be used for the control of the actuator, which improves shifting response and reduces the chance of a shifting impact occurring, thereby obtaining a high quality of shifting in a reliable fashion.

主权项

1. A method of searching for a sync start in an automated manual transmission, the method comprising:
measuring vibration while engaging gear shafts with each other for a predetermined gear; and inverse-estimating sync starts by deducting a predetermined deduction distance from a point where a sharp increase in vibration has been measured during the process of measuring vibration; wherein the deduction distance is a preset value from the sync start to a time point where the sleeve adjoins a clutch gear.