Lexus ES300 (2002 year). Service manual — part 121
CHASSIS – U150E AUTOMATIC TRANSAXLE
CH-13
211CH12
Solenoid Valve SL3
Solenoid Valve SLT
Solenoid Valve SL1
Upper Valve Body
Plate
Lower Valve
Body
Fluid Temperature
Sensor
Solenoid Valve DSL
Solenoid Valve S4
Solenold Valve SL2
Solenoid Valve SR
211CH13
Lock-up Relay Valve
Lock-up Control Valve
B
1
Control Valve
Secondary Regulator Valve
C
0
Control Valve
Solenoid
Modulator Valve
B
3
Orifice
Control Valve
B
2
Control Valve
C
1
Control Valve
Accumulator Control Valve
Solenoid Relay Valve
VALVE BODY UNIT
1. General
This valve body unit has been developed for the U150E A / T application.
The valve body consists of the upper and lower valve bodies and 7 solenoid valves.
Apply orifice control, which controls the flow volume to the B
3
brake, has been adopted in this unit.
Upper Valve Body
CHASSIS – U150E AUTOMATIC TRANSAXLE
CH-14
211CH14
4-5 Shift Valve
B
2
Apply Control Valve
B
1
Apply Control Valve
Primary Regulator Valve
Clutch Apply Control Valve
Lower Valve Body
CHASSIS – U150E AUTOMATIC TRANSAXLE
CH-15
198CH31
Sleeve
Solenoid Coil
Spool Valve
Hydraulic
Pressure
Current
2. Solenoid Valve
Solenoid Valves SL1, SL2, SL3 and SLT
1) General
In order to provided a hydraulic pressure that is proportion to current that flows to the solenoid coil, the
solenoid valve SL1, SL2, SL3, and SLT linearly controls the line pressure and clutch and brake
engagement pressure based on the signals it receives from the ECM.
The solenoid valves SL1, SL2, SL3, and SLT have the same basic structure.
2) Function of Solenoid Valve SL1, SL2, and SLT
Solenoid
Action
Function
Solenoid
Valve
Action
Function
SL1
B
1
brake pressure control
SL2
For clutch and brake engagement pressure
control
C
0
clutch pressure control
Lock-up clutch pressure control
SL3
C
1
clutch pressure control
SLT
For line pressure control
Line pressure control
Secondary pressure control
CHASSIS – U150E AUTOMATIC TRANSAXLE
CH-16
181CH12
Solenoid Valve ON
Solenoid Valve OFF
Control Pressure
Line
Pressure
Drain
161ES65
211CH34
Solenoid Valve DSL
Line Pressure
Solenoid Valve S4
Line Pressure
Solenoid Valve SR
Line Pressure
Solenoid Relay Valve
To Lock-up
Relay Valve
To B
2
Control Valve
To Clutch Apply
Control Valve
To 4-5
Shift Valve
Solenoid Valves SR, S4, and DSL
1) General
The solenoid valves SR, S4, and DSL use a three-way solenoid valve.
2) Function of Solenoid Valve SR
The solenoid valve SR controls the solenoid relay valve. Accordingly, the fluid passages from the
solenoid valve DSL and S4 have been changed.
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст