Chassis
Page 4.6
Rear-Axle Valve Block
The valve block comprises two pressure sensors (-1- and -2-), a
pressure regulating valve (-3-) and the direction valve (-4-). The valve
block is installed on the left rear-axle suspension subframe.
Front-Axle Valve Block
The valve block comprises two pressure sensors (-1- and -2-), a fail-
safe valve (-3-), the direction valve (-4-) and a pressure regulating valve
(-5-). The valve block is installed in the right front wheel housing.
Functions
The pressure sensors record the current pressure in the chambers of
the swivel motors. Depending on driving dynamics, the direction valves
are switched in such a way that pressure is built up or reduced in the
chambers in order to create specific forces on the anti-roll bars that will
counteract the vehicle’s lateral inclination. The pressure regulating
valves are activated by the control unit so that the required pressure
exists on the swivel motors. The fail-safe valve in the front-axle valve
block is de-energized in the event of a fault and reverts to its normal
position via spring force. This short circuits the pump hydraulic system
and switches the system to a fail-safe mode. For a description, see .
“Error message/Fail-safe mode”.
1 - Pressure sensor
2 - Pressure sensor
3 - Pressure regulating valve
4 - Direction valve
1 - Pressure sensor
2 - Pressure sensor
3 - Fail-safe valve
4 - Direction valve
5 - Pressure regulating valve
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