3-2 Timing Control

When shifting from 3rd to 2nd, the high clutch is disengaged. At the same time, oil pressure (which releases the brake band) is also released from the servo piston 3rd release chamber (3R).

At this point, the servo piston moves to release oil pressure from the 3rd release chamber (3R) and apply oil pressure to the 2nd apply chamber. This causes the brake band to be applied. In other words, high clutch "release" and brake band "application" are properly timed by electronic control. This eliminates engine rev-up under no load or hesitation.
- When the 3-2 timing valve conducts, oil pressure applied to the 3rd release chamber is quickly released through passage (A).
- When the 3-2 timing valve does not conduct, oil pressure applied to the 3rd release chamber is slowly released through passage (B) (provided with an orifice).