NU747_1_G2-FRA.qxd 12/01/05 14:46 Page 2.21
BC85 - NU747-1
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2.21
ELECTRONIC STABILITY PROGRAM: ESP WITH UNDERSTEERING CONTROL
This system helps to keep the
vehicle under control in “critical”
driving situations (avoiding an
obstacle, loss of road holding in a
bend, etc.), and it is complemented
by the “understeer control” system.
This function is an
additional aid in case of
critical driving conditions
to enable the vehicle
behaviour to be adapted to suit
the driving conditions.
However, the function does not
take the place of the driver. It
does not increase the vehicle's
limits and should not encourage
you to drive more quickly.
Therefore, it can, under no
circumstances, replace the
vigilance or responsibility of the
driver when manoeuvring the
vehicle (the driver must always
be ready for sudden incidents
which may occur when driving).
Operating principle
A sensor in the steering wheel
detects the direction selected by the
driver.
Other sensors throughout the
vehicle measure the actual
direction.
The system compares the direction
selected by the driver and the actual
direction of the vehicle and corrects
this as necessary by applying the
brakes selectively and/or acting on
the engine power.
Understeer control
This system optimises the action of
the ESP in the case of pronounced
under steering (loss of front axle
road holding).
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