Patent ID: 7699748

Claim:
A line pressure control apparatus for an automatic transmission that includes a lock-up clutch, comprising: a first determination device that determines whether the automatic transmission is shifting; a second determination device that determines whether a slip control for the lock-up clutch is being executed while a vehicle is decelerated by releasing an accelerator pedal; and a setting device that sets a line pressure to a first value that is higher than a second value if the first determination device determines that the automatic transmission is shifting, wherein the setting device sets the line pressure to the second value if the first determination device determines that the automatic transmission is not shifting, and the second determination device determines that the slip control is not being executed while the vehicle is decelerated by releasing the accelerator pedal, and the setting device sets the line pressure to a value higher than the second value if the first determination device determines that the automatic transmission is not shifting, and the second determination device determines that the slip control is being executed while the vehicle is decelerated by releasing the accelerator pedal.