Damper System

Principal task of hydraulic circuits is to control working pressure during gear shifts. During each gear shift transition, engine speed increases (during a downshift) or decreases (during an upshift). In order to provide a smooth transition between gear shifts, 4 independent damper circuits are used.

Clutch K-1 damper circuit controls clutch K-1 during 2nd to 3rd gear downshifts or upshifts. Clutch K-2 damper circuit controls clutch K-2 during 3rd to 4th gear downshifts or upshifts. Brake band B-1 damper circuit controls brake band B-1 during 1st to 2nd gear downshifts or upshifts.

The "engaging" damper circuit controls engagement of clutches or brake bands, depending on selector lever position. When selector lever is moved from "N" position to "D" position or "3" position, brake bands B-1 and B-2 are controlled. When selector lever is moved from "N" position to "2" position, clutch K-2 and brake band B-2 are controlled. When selector lever is moved from "N" position to "R" position, clutch K-2 and disc brake B-3 are controlled. The "engaging" damper controls working pressure pattern after drive positions "R", "D", "3" and "2" are engaged.