Patent ID: 9303752
Filing Date: 2016-04-05
CPC Classification: F16D,F16H,Y10T

Claim Text:
1. A shift change controlling apparatus, comprising: a control unit configured to control a shift change operation in a twin-clutch-type transmission, by alternately changing an engagement state of a first clutch and a second clutch; and a pre-pressure supplying unit configured to supply a pre-pressure on an unengaged one of the first and second clutches during execution of a pre-shift change while the other one of the first and second clutches is engaged, wherein the pre-pressure provides a pre-engagement of the unengaged clutch for operating by a small amount toward the engagement side and creating in advance a state in which power transmission using a shift gear train corresponding to a next shift position can be carried out, wherein the control unit is further configured to issue a signal for removing the pre-pressure, wherein the control unit is further configured to determine a predetermined pre-shift change waiting time, and wherein the control unit is further configured to provide the predetermined pre-shift change waiting time between a point in time when the signal for removing the pre-pressure is issued by the control unit and a point in time when the pre-shift change is started, and the duration of the predetermined pre-shift change waiting time is determined based upon a speed of rotation of main shafts.