Patent ID: 7377374
Filing Date: 2008-05-27
Classification: F16D,F16H,Y10T

Abstract:
1. A method for use in an automated shifting transmission of a vehicle with a non-synchronized reverse gear for determining a point of contact during a closing path of a clutch at which the clutch begins to transmit a torque wherein the point of contact is determined as that point in a clutch closing path at which the torque transmitted by the clutch is large enough to displace a tooth ( 3 ) of a sliding sleeve ( 1 ) against a tooth ( 4 ) of a clutch body ( 2 ) of a reverse gear-toothed wheel in a tooth-on-tooth position, the method comprising the steps of: initiating the method by disengaging the reverse gear and the clutch; engaging and subsequently disengaging a synchronized braking of one of a transmission input shaft and a transmission countershaft; moving a reverse gear sliding sleeve on a transmission shaft to engage a reverse gear clutch body connected with a reverse gear-toothed wheel; testing whether the reverse gear sliding sleeve is meshed with the reverse gear dutch body and whether the reverse gear is engaged; when the reverse gear is engaged, terminating the method; and when the reverse gear is not engaged, further closing the clutch up to a predetermined point of contact; and