Face dog clutch engagement at low mismatch speed

摘要

Face dog clutches regain popularity in heavy duty AMT's. Though the reduction of the speed difference between the dogs is the key to a smooth gear shift, the excellent engaging capa-bility is experienced to degrade at low mismatch speed and the outcome of the engagement process becomes uncertain. Using a simple mechanical model, that uncertainty is described and the probability of the successful engagement is given as a func-tion of the initial mismatch speed. Results are validated through statistical evaluation of measurement data.