Range Rover Evoque: Gradient release control (GRC)
With HDC activated, if the vehicle is stopped on
a slope using the foot brake, GRC will become
active (except in Terrain Response Sand
program). It operates in all gears and in neutral
position.
During a steep hill descent, when the foot brake
is released GRC will automatically hold brake
force for a short period before gradually
releasing it, allowing for maximum control to
be retained.
During an uphill start, a similar brake hold and
gradual release is employed. This allows time
for the driver to apply speed and allow the
vehicle to move away smoothly.
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In extreme circumstances, the HDC system
may cause brake temperatures to exceed their
pre-set limits. An HDC warning will be
displayed in the message centre. HDC will then
fade out and become temp
If a fault is detected in the HDC system, an HDC
warning will be displayed in the message
centre.
If the fault is detected while the system is
operating, HDC will then fade out.
If a fault is det
Gradient Acceleration Control (GAC) and Hill
Start Assist are not active while HDC is
operating.
GAC will limit vehicle acceleration on steep
descents, allowing the driver to feel more in
control
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This is a feature designed to enable the system
to better recognise the vocal characteristics of
a user, once the training has been completed.
To carry out Voice training:
- Select Setup from the Home menu.
- Select Voice and from the Setup menu.
- Select Voice training from the Voice
setting
DRIVE CLUTCHES
Multiplate Drive or Brake Clutch - Typical
Input shaft
Main pressure supply port
Piston
Cylinder - External plate carrier
Clutch plate assembly
Baffle plate
Diaphragm spring
Output shaft
Bearing
Dynamic pressure equalisation chamber
Piston chamber
Lubrication channel
Th
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