| 摘要 |
PROBLEM TO BE SOLVED: To provide shift control device and method for an automatic transmission for a vehicle reducing shift shock, even if the number of rotation of an output shaft is changed due to an external influence during an upshift control process. SOLUTION: This device is constituted of a vehicle operation traveling detection means for detecting a vehicle traveling state signal varied and outputted by a traveling state of the vehicle, a shift control means for outputting a prescribed control signal to a vehicle traveling state detecting device, receiving inputs such as a shift mode state of the vehicle outputted by being synchronized according to a control signal, a throttle valve opening, the number of rotation of the output shaft, engine speed, a shift lever position and an acceleration pedal operating state, performing a power on upshift control when a power on upshift signal is impressed during a traveling, controls a relative change rate of turbine rotating speed for turbine rotating speed after the shift during the control process, and performing a power on upshift feedback control, and a driving means duty-controlled by a prescribed shift control duty control signal outputted from the shift control device and performing a shift by supplying/ releasing hydraulic pressure from an oil pump to/from the friction element. |
