| 摘要 |
PURPOSE: A speed change control method of an automatic transmission for a vehicle is provided to keep soft traveling state and improve marketability of a vehicle by keeping second stage gear level when traveling at low speed in a downtown area having heavy traffic congestion. CONSTITUTION: In a speed change control method of an automatic transmission for a vehicle, low speed-decision vehicle speed, the operated degree and operated time of an accelerator pedal, and the operated time of a brake pedal, according to the traveling state in a downtown area having heavy traffic congestion, are set. Second stage gear level is maintained prior to the speed change diagram preset at the automatic transmission if the vehicle is traveling on a level road on the assumption that warm-up of the engine is finished and a drive mode state is given, and if the operated degree and the operated time of the accelerator pedal is below the preset operated degree and operated time of the accelerator pedal under the decision vehicle speed and the operated time of the brake pedal is over the preset operated time of the brake pedal.
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