Hyundai Elantra: Solenoid valve. Description and Operation (A4CF2) - Valve Body System - Automatic Transaxle System - Hyundai Elantra HD 2006Ц2010 Service ManualHyundai Elantra: Solenoid valve. Description and Operation (A4CF2)

Description

TCM calculates the best condition using the information from all kinds of sensors. If the solenoid valve receives the information on the oil pressure, the solenoid valve actuates according to the driving signal. All kinds of regulators in the valve body are controlled to change the oil passage and also the line pressure is controlled by TCM.

● PWM (Pulse Width Modulation) SOLENOID VALVE
Structure and functions
PWM solenoid valve is composed of five solenoid valves and the oil capacity in the solenoid valve is changed by the electric duty value of TCM. The oil pressure of the valve body and the torque converter engages or disengages the damper clutch. The solenoid valves send the operating oil pressure to the clutches and brakes at the each range and also control the strength and weakness of oil pressure to reduce the shock when shifting the range.

PWM (Pulse Width Modulation) Solenoid
Range
PWM solenoid valve
PCSV-A
PCSV-B
PCSV-C
PCSV-D
ON, OFF
N, P
OFF
ON
ON
OFF
ON
1st
ON
ON
OFF
OFF
ON
2nd
ON
OFF
OFF
ON
OFF
3rd
OFF
ON
OFF
ON
OFF
4th
OFF
OFF
ON
ON
OFF
Reverse
OFF
OFF
ON
OFF
ON
LOW
OFF
ON
OFF
OFF
ON

PWM (Pulse Width Modulation) Solenoid Valve Control Feature

PWM solenoid valve is controlled linearly according to the duty ratio.

Oil pressure range:
0~4.3 kgf/cm² (0~422kpa, 0~61.2psi)

Type
3way & Normal High
Supply voltage
12V
Coil resistance
3.2±0.2Ω (at 25∞C, 77∞F)
Cycle
50Hz