| 摘要 |
At the time of starting a vehicle, the torque capacity of a friction engagement element is made less than the torque capacity of a continuously variable transmission by setting a ratio between the pressure-receiving area of a control oil chamber (77a) of a garage shift control valve (77) and the pressure-receiving area of a feedback chamber (77d) of the valve, and a ratio between the pressure-receiving area of a control oil chamber (73a) of a secondary sheave control valve 73 and the pressure-receiving area of a feedback chamber 73d of the valve. This allows a control based on a single linear solenoid valve SLT although the control is for eliminating slip of a belt of the continuously variable transmission. Therefore, the construction of the oil pressure control apparatus is simplified so that the size and cost thereof can be reduced.
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