| 摘要 |
PURPOSE: A method for controlling power-on first to second up-shift is provided to improve a travel experience and to enhance the durability of a transmission by stabilizing the speed change control without a shifting shock. CONSTITUTION: The output of a power-on first to second up-shift control signal is decided(S100). If the power-on first to second up-shift control signal is outputted, a duty control signal is outputted to a drive unit(S110). To decide the elapse of a reference time(Ts), time is counted by accumulative operation(S120). The occurrence of run-up is decided by comparing a value corresponding to a present vehicle speed(No) and a gear ratio of a former speed range to a present turbine rpm(Nt)(S130). If run-up occurs, duty on/off control is performed for the reference time(S140). Otherwise, the output of a duty control signal output request signal is decided(S160). After a control duty of a power-on first to second up-shift connection part is determined, a corresponding duty control signal is outputted to the drive unit(S170). After an initial fill-time is outputted, a specific duty DA is outputted(S200).
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