| 摘要 |
PURPOSE:To reduce the speed change shock by carrying out the correction for the rise of the line pressure by delaying the output operation for a prescribed time even if switching operation from the ordinary use range to the low speed stage range is carried out. CONSTITUTION:In case of the first or the second speed in the first or the second range, the OFF-signal as the pilot pressure generating signal PS is outputted into a 3-4 shift solenoid valve 53 from a pilot pressure control means 206, and a pilot pressure is generated in the line connected to the 3-4 shift solenoid valve 53, and said pilot pressure is loaded by a back-up control valve, and a pilot pressure is supplied into a throttle valve 69. Further, a delaying means 207 for delaying the output of the OFF signal as the pilot pressure generating signal PS for a prescribed time by the signal supplied from a range switching detecting means in the range switching operation from the D range to the second or the first range is provided. |
