The speed change control method for an automatic transmission 3, wherein said {TAIL ~ speed changing operation} of said second transmission mechanism started in said step includes engaging a third friction element after the one way {HEAD ~ clutch} is locked, said included in the second transmission mechanism and being arranged in parallel, with respect to a power transmission, to the one way clutch 
The speed change control method for an automatic transmission 3 , wherein said { TAIL ~ speed changing operation } of said second transmission mechanism started in said step includes engaging a third friction element after the one way { HEAD ~ clutch } is locked , said included in the second transmission mechanism and being arranged in parallel , with respect to a power transmission , to the one way clutch
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH