Valve Body

Valve Body

The valve body contains six solenoid valves:
^ three PWM solenoid valves (pulse width modulation solenoid valves,
^ two shift solenoid (on/off) valves,
^ one main regulating valve (variable force solenoid).

The individual clutches and bands are supplied pressure from the PWM solenoid valves and the shift solenoid (on/off) valves and thus the gears are shifted.

The PWM solenoid valves allow direct actuation of the clutches and bands to ensure extremely smooth gear shifting through precise pressure regulation.

The shift solenoid (on/off) valves switch the hydraulic path to the clutches and bands, reducing the number of required modulating valves.

The main regulating valve (variable force solenoid) ensures that sufficient hydraulic pressure is available in all operating conditions.

PWM solenoid valves

1-3 PWM solenoid valves 1, 2 and 3 control the pressure to the bands and clutches.

Shift solenoid (on/off) valves 1 and 2

The shift solenoid (on/off) valves switch the different oil passages in the valve body to direct the pressure to the individual clutches and bands.

The use of the shift solenoid valves are needed for direct actuation of the individual clutches and bands.

Main regulating valve

The main regulating valve (variable force solenoid) controls the required main line pressure for the individual transaxle ranges.

The main line pressure is controlled dependent on the current engine load.