SOLENOID VALVE [ET6A-EL (US)]
SOLENOID VALVE [ET6A-EL (US)]
SM2780923
id0517n13637x5
Purpose/Function
• The solenoid valve implements shift point control, shift hydraulic pressure control, and TCC control by adjusting the pressure in each circuit based on the control signal from the TCM.
• The part name of each solenoid valve and function are as follows.
|
Part name |
Function |
|---|---|
|
Pressure control solenoid
|
• Adjusts the pressure control solenoid pressure to control line pressure.
|
|
Shift solenoid No.1
|
• Adjusts the hydraulic pressure in the low clutch circuit.
|
|
Shift solenoid No.2
|
• Adjusts the hydraulic pressure in the 2-6 brake circuit.
|
|
Shift solenoid No.3
|
• Adjusts the hydraulic pressure in the R-3-5 brake circuit.
|
|
Shift solenoid No.4
|
• Adjusts the hydraulic pressure in the high clutch circuit and the low and reverse brake circuit.
|
|
Torque converter clutch (TCC) control solenoid
|
• Adjusts the hydraulic pressure in the lock-up control circuit.
|
|
On/off solenoid
|
• Performs switching of the shift valve in the control valve body.
|
Construction
• Each type of solenoid valve is as follows.
|
Item |
Type |
|---|---|
|
Pressure control solenoid
|
Normal open-type linear solenoid
|
|
Shift solenoid No.1
|
Normal closed-type linear solenoid
|
|
Shift solenoid No.2
|
Normal closed-type linear solenoid
|
|
Shift solenoid No.3
|
Normal open-type linear solenoid
|
|
Shift solenoid No.4
|
Normal open-type linear solenoid
|
|
TCC control solenoid
|
Normal closed-type linear solenoid
|
|
On/off solenoid
|
Normal open-type on/off solenoid
|
• Each solenoid valve is installed to the solenoid control valve body.
am3zzn00007648
|
Operation
• Each solenoid valve operates as follows.
|
Item |
Operation |
|---|---|
|
Pressure control solenoid
|
• Adjusts the pressure control solenoid pressure by increasing/decreasing the energization current to the pressure control solenoid according to the signal from the TCM.
|
|
Shift solenoid No.1
|
• Adjusts the low clutch pressure by increasing/decreasing the energization current to shift solenoid No.1 according to the signal from the TCM.
|
|
Shift solenoid No.2
|
• Adjusts the 2-6 brake pressure by increasing/decreasing the energization current to shift solenoid No.2 according to the signal from the TCM.
|
|
Shift solenoid No.3
|
• Adjusts the R-3-5 brake pressure by increasing/decreasing the energization current to shift solenoid No.3 according to the signal from the TCM.
|
|
Shift solenoid No.4
|
• Adjusts the high clutch pressure and the low and reverse brake pressure by increasing/decreasing the energization current to shift solenoid No.4 according to the signal from the TCM.
|
|
TCC control solenoid
|
• Adjusts the TCC control clutch pressure by increasing/decreasing the energization current to the TCC control solenoid according to the signal from the TCM.
|
|
ON/OFF solenoid
|
Non-energization (OFF)
• When the on/off solenoid is off, the supply port in the solenoid opens. As a result, hydraulic pressure is supplied to operate the shift valve.
Energized (ON)
• When the on/off solenoid is on, the drain port in the solenoid opens. As a result, hydraulic pressure which operates the shift valve is drained.
|