Shift change controlling apparatus

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.