Boite automatique Aisin AW55

Introduction

Introduction

 

Three linear solenoids ( PWM)

1.  SLT = The line pressure control solenoid maintains consistent pressure for proper transaxle operation.

2. SLS = The shift pressure control solenoid maintains shift feel by controlling the hydraulic pressure for the application, or release, of the friction components. (This is a part of the transaxle adaptive functions.)

3. SLU = The torque converter clutch lock-up pressure control solenoid controls the apply and release pressure of the torque converter clutch, and the low and reverse clutch during low range first gear operation.

 

solenoid AW55 AF33

Five Shift Solenoids ( On Off )


The function of the five shift solenoids is to apply and release the clutch packs by locking-up the planetary gear sets in order to achieve different gear ratios.


• S1 = Reverse, First Shift Solenoid Valve, : NO
• S2 =  2-3, 3-4 Shift Solenoid Valve, : NO
• S3 = 1-2, 2-3 Shift Solenoid Valve, : NC
• S4 = 3-4, 4-5 Shift Solenoid Valve,  : NO
• S5 = Reverse Shift Solenoid Valve, :  NC  (ON) during 2-3 and 3-4 shifts

Chgt  Solenoid

N>1 : S1 S3

1>2 : S1 S2

2>3 : S4

3>4 : S3

4>5 : S2

N>R : S3 S5

10 psi = 0.7 bar

DTC  = Diagnostic trouble codes

TCC = Torque converter clutch

TCM = Transmission Control Module

Transmission Range (TR) Switch

MIL =

Input Shaft Speed (ISS)

Output Shaft Speed (OSS

Transmission Fluid Temperature (TFT)

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