Garage Shift Control

After the engine is started, when the shift lever is moved from the neutral (N) position to the drive (D) position or from the neutral (N) position to the reverse (R) position, the pressure control solenoids (SLC1 and SLC2) supply the optimal amount of hydraulic pressure to the C1 and C3 clutches, realizing smooth engagement without shift shock.

• When the engine is cold, the stroke resistance of the C1 clutch piston during the first shift operation increases, this in turn creates a lag in shift operation. In order to reduce the amount of lag, control is not performed.
• By controlling the hydraulic pressure according to the piston stroke, smooth engagement without shock is possible.