Page 156
CAT: 8612 November 2019
OPERATING INSTRUCTIONS
ELECTRONIC STABILITY PROGRAM (ESP)
ESP helps to restore vehicle stability through the use of ABS, ATC, steering
direction and vehicle directional stability information. Steering angle, yaw,
suspension pressure and brake application pressure sensors monitor the
intended vehicle directional control versus actual vehicle movement. ESP
intervenes by applying individual wheel brakes, or reduced engine torque
when required to enhance vehicle stability. The system is compatible with
multi trailer combinations.
TRAILER RESPONSE MANAGEMENT (TRM)
Electronic trailer brake actuation (for EBSS compatible trailers only) for
improved trailer braking response to assist with reduced stopping distances.
ABS OFF-ROAD FUNCTION SWITCH
Your Kenworth vehicle may be equipped with a separate electrical switch
to activate an ABS off-road function. This function is NOT to be used
for on-highway driving, but is intended to be used to improve stopping
performance in off-highway conditions (e.g. loose gravel
and mud). The ABS off-road function is accomplished by
not
allowing a ‘wedge’ of material to build-up in front of
momentarily locked wheels.
Features and Benefits
• Changes the ABS control limits to allow for a more aggressive ABS
function while off-road.
• Improves vehicle control and helps reduce stopping distances
in off-road conditions or on poor traction surfaces such as loose
gravel, sand and dirt.
• Allows retarders to function independently of the ABS function.
•
If your vehicle does not have an engine retarder, the ABS off-road
switch will function the same.
While the off-road mode can improve vehicle control and shorten
stopping distances, some steering ability may be reduced on certain
surfaces resulting from the momentarily sliding tyres. Always operate
your vehicle at safe operating speeds. Failure to do so might cause
your vehicle to lose control and could result in an accident and/or
injury.
ABS
ABS
OFF ROAD
OFF ROAD
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