IC Bus CE Series 2020, Руководство по эксплуатации и обслуживанию

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Operation
The ABS system cannot provide any better braking and steering
capability than the available road traction permits. If the road
is slippery, it takes longer to stop than on a dry road. Steering
maneuverability is similarly limited.
Vehicle speed must be
reduced to compensate for the extended time and distance
required to stop or slow the vehicle on slippery roads. ABS
prevents lockup of controlled wheels if you over brake for
existing road conditions.
The wheel hubs carry exciter rings used by the axle mounted
sensors to transmit wheel speed information to the ABS
electronic control unit located on the chassis frame. The control
unit monitors and compares all wheel speed inputs to determine
if any wheel(s) are about to lock. If wheel lockup is about to
occur, the control unit commands the appropriate modulator
valve to adjust pressure delivery to prevent wheel lockup.
If over-braking causes wheel lockup on the rear drive axles while
retarding devices are in operation, the ABS will interrupt and
disable the retarder until the lockup situation has stopped.
The ABS is equipped with a warning indicator located in the
vehicle's Instrument Panel Gauge Cluster. Each time the ignition
is turned ON the ABS performs a self check. The ABS warning
indicator will illuminate and if the ABS passes the self check, the
indicator will turn OFF a few seconds after the ignition is turned
ON. ABS fault codes will be electronically stored in the ABS.
Antilock Driving Tips
• Use controlled, even pressure to stop the vehicle, being
careful not to skid.
Most effective stopping will be
achieved in this situation.
• If the vehicle begins to skid, maintain even pressure on
the brake pedal. The ABS controller will rapidly cycle the
brakes on the skidding wheel(s), while maintaining even
pressure on the non-skidding wheels.
• While maintaining even pressure on the brake pedal,
steer around any hazardous objects in your path.
• Attempt to steer clear of traffic, pedestrians or other
obstacles while you are in an emergency braking
situation. The antilock brake system will allow you to
steer the vehicle during braking while it comes to a full
stop. ABS is not an excuse to take unnecessary risks.
Always drive carefully and stay a safe distance away
from the vehicle in front of you.
• Do not pump the brake pedal during a skid unless the ABS
system is not functioning.
ABS Self-Check
NOTE: If an antilock fault develops, standard brake
system operation is maintained. The brake system is still
operational, but the antilock system does not operate to
prevent wheel lockup if you over apply the brakes for
existing conditions.
NOTE: If the ABS indicator stays illuminated or continues
to flash, have the system serviced immediately.
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