AUTOMATIC TRANSMISSION SYSTEM


  1. CONSTRUCTION


    1. The gear train consists of four multi-plate clutches, four multi-plate brakes, four 1-way clutches, and three sets of planetary gears each consisting of a sun gear, a pinion gear and a ring gear.

      A019QL5C01
      *1

      No. 2 Clutch (C2)

      		 *2

      No. 4 Clutch (C4)
      *3

      No. 3 Clutch (C3)

      		 *4

      No. 1 Clutch (C1)
      *5

      No. 3 Brake (B3)

      		 *6

      No. 1 Brake (B1)
      *7

      No. 2 Brake (B2)

      		 *8

      No. 4 Brake (B4)
      *9

      No. 4 1-way Clutch (F4)

      		 *10

      No. 2 1-way Clutch (F2)
      *11

      No. 1 1-way Clutch (F1)

      		 *12

      No. 3 1-way Clutch (F3)
      *13 Input Shaft *14 Front Planetary Gear Assembly
      *15 Center Planetary Gear Assembly *16 Intermediate Shaft
      *17 Rear Planetary Gear Assembly *18 Output Shaft
      A019QFKC01
      *1 Input Shaft *2 Intermediate Shaft
      *3 Front Planetary Gear Assembly *4 Center Planetary Gear Assembly
      *5 Rear Planetary Gear Assembly *6 Output Shaft

  2. OPERATION


    1. Power Flow

      Operating Condition of Shift Solenoid Valves
      Shift Lever Position or Shift Range Gear Position Shift Solenoid Valve
      S1 S2 S3 S4 SR SL1 SL2 SLU
      P Park Off On On On On Off On Off
      R* Reverse Off On On On On On On Off
      N Neutral Off On On On On On On Off
      D, S6 1st Off On On Off On Off On Off
      2nd On On On Off On Off On On
      3rd On Off On Off On Off On On
      4th* On Off Off Off On Off On On
      5th* On Off Off On Off On Off On
      6th* On On Off On Off On Off On
      S5 1st Off On On Off On Off On Off
      2nd On On On Off On Off On On
      3rd On Off On Off On Off On On
      4th* On Off Off Off On Off On On
      5th* On Off Off On Off On Off On
      S4 1st Off On On Off On Off On Off
      2nd On On On Off On Off On On
      3rd On Off On Off On Off On On
      4th* On Off Off Off On Off On On
      S3 1st Off On On Off On Off On Off
      2nd On On On Off On Off On Off
      3rd* On Off On Off On Off Off Off
      S2 1st Off On On Off On Off On On
      2nd* On On On On On Off Off Off
      S1 1st* Off On On Off On Off Off Off

      Tech Tips

      *: Engine braking occurs

      Operating Condition of Friction Engagement Components and 1-way Clutch
      Shift Lever Position or Shift Range Gear Position Clutch Brake 1-way Clutch

      C1

      C2

      C3

      C4

      B1

      B2

      B3

      B4

      F1

      F2

      F3

      F4

      P Park - - - - - - - - - - - -
      R* Reverse - - ○ - (○) - - ○ ○ - - -
      N Neutral - - - - - - - - - - - -
      D, S6 1st ○ - - ○ - - - - - - ○ ○
      2nd ○ - - ○ - - ○ - ○ ○ - ○
      3rd ○ - ○ ○ - - ● - ○ - - ○
      4th* ○ ○ ● ○ - - ● - - - - ○
      5th* ● ○ ○ - ○ - ● - - - - -
      6th* ● ○ - - ● ○ ● - - - - -
      S5 1st ○ - - ○ - - - - - - ○ ○
      2nd ○ - - ○ - - ○ - ○ ○ - ○
      3rd ○ - ○ ○ - - ● - ○ - - ○
      4th* ○ ○ ● ○ - - ● - - - - ○
      5th* ● ○ ○ - ○ - ● - - - - -
      S4 1st ○ - - ○ - - - - - - ○ ○
      2nd ○ - - ○ - - ○ - ○ ○ - ○
      3rd ○ - ○ ○ - - ● - ○ - - ○
      4th* ○ ○ ● ○ - - ● - - - - ○
      S3 1st ○ - - ○ - - - - - - ○ ○
      2nd ○ - - ○ - - ○ - ○ ○ - ○
      3rd* ○ - ○ ○ (○) - ● - ○ - - ○
      S2 1st ○ - - ○ - - - - - - ○ ○
      2nd* ○ - - ○ - (○) ○ - ○ ○ - ○
      S1 1st* ○ - - ○ - - - (○) - - ○ ○

      Tech Tips

      ○: Operates

      ●: Operates but is not related to power transmission

      (○): Operates during engine braking

      -: Does not operate

      *: Engine braking occurs

      Figure 1. 1st Gear (Shift Lever in D or S)

      A019R4ZC01
      *a Operates *b Operates during engine braking

      Figure 2. 2nd Gear (Shift Lever in D or S)

      A019R3EC01
      *a Operates *b Operates during engine braking

      Figure 3. 3rd Gear (Shift Lever in D or S)

      A019QSFC01
      *a Operates *b Operates during engine braking
      *c Operates but is not related to power transmission - -

      Figure 4. 4th Gear (Shift Lever in D or S)

      A019QHJC01
      *a Operates *b Operates but is not related to power transmission

      Figure 5. 5th Gear (Shift Lever in D or S)

      A019QZHC01
      *a Operates *b Operates but is not related to power transmission

      Figure 6. 6th Gear (Shift Lever in D or S)

      A019QLQC01
      *a Operates *b Operates but is not related to power transmission

      Figure 7. Reverse Gear (Shift Lever in R)

      A019QO6C01
      *a Operates *b Operates during engine braking