Holding Clutches: Operation: Operation

WARNING: This page is about a different car, the 2016 Jeep Wrangler and 2015 Jeep Wrangler. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Holding Clutches

Courtesy of CHRYSLER GROUP, LLC

1 - B1 CLUTCH

2 - EXTERNALLY TOOTHED DISC

3 - INTERNALLY TOOTHED DISC

4 - B3 CLUTCH

5 - B2 CLUTCH

6 - B3 CLUTCH PISTON

7 - B2 CLUTCH PISTON

8 - B2 CLUTCH INTERNALLY TOOTHED DISC CARRIER

9 - REAR PLANETARY GEARSET PLANETARY CARRIER

10 - CENTER PLANETARY GEARSET ANNULUS GEAR

11 - CENTER PLANETARY GEARSET PINION GEARS

12 - CENTER PLANETARY GEARSET SUN GEAR

13 - FRONT PLANETARY GEARSET PINION GEARS

14 - FRONT PLANETARY GEARSET SUN GEAR

15 - B1 CLUTCH INTERNALLY TOOTHED DISC CARRIER

16 - B1 CLUTCH PISTON

17 - B1 CLUTCH EXTERNALLY TOOTHED DISC CARRIER

The holding clutches (Fig 1) connect the annulus gear, sun gear, or planetary carrier of a planetary gear set against the transmission housing in order to transmit the drive torque.

If the piston (16) on multiple-disc holding clutch B1 (1) is subjected to oil pressure, it presses the internal (3) and external discs (2) of the disc set together. The internally toothed disc carrier (15) locks the sun gear (14) against the housing. The planetary pinion gears (13) turn on the sun gear (14).

If the multiple-disc holding clutch B2 (5) is actuated via the piston (7), the piston compresses the disc set. The internally toothed disc carrier (8) locks the sun gear (12) against the housing. The planetary pinion gears (11) turn on the sun gear (12).

If the multiple-disc holding clutch B3 (4) is actuated via the piston (6), the planetary carrier (9) and the annulus gear (10) are locked. When the multiple-disc brake B3 (4) is actuated, the direction of rotation is reversed.