DYNASTY 2006
CHASSIS INFORMATION — SECTION 10 • 319
ABS/ATC SYSTEM (ANTI-LOCK BRAKES)
The motorhome is equipped with an anti-lock braking system (ABS) and automatic traction control system
(ATC). The ABS system monitors wheel rotation speeds by using a 100-tooth magnetic tone ring mounted to the
hub. Revolving with the wheel, the magnetic tone ring is polarized giving positive and negative pulsations. A
stationary sensor is mounted adjacent to the tone ring to monitor magnetic pulses. The pulses are monitored by
the ABS electronic control unit (ECU).
The ECU monitors all wheel sensors at the rate of 100 times per second. The ECU controls Pressure Modulator
Valves. Pressure Modulator Valves have two electric-over-air solenoids, a hold solenoid and a release solenoid.
The modulator valves are open under normal braking, allowing a straight through air signal from the treadle valve
to the brake chamber. Should a wheel lose traction under a braking application, the ECU will energize the hold
solenoid of the Pressure Modulator Valve to interrupt the air signal from the treadle valve to the brake chamber.
The release solenoid vents the existing air signal, at the brake chamber to the atmosphere, allowing the skidding
tire to regain traction. Skidding tires have less tractive effi ciency. It is possible, under certain conditions, to have
the wheel(s) skid with a normal functioning ABS system.
The ABS itself does not apply additional braking power. The purpose of the ABS is to limit wheel lock and
decrease stopping distance. Cautious driving practices and maintaining adequate safe distance when following
vehicles is the key to safe vehicle operation.
WARNING:
The ABS/ATC system is designed to increase tire to road surface traction but cannot
overcome naturally occurring laws of physics. The ABS/ATC system, combined with safe
driving practices, will reduce the possibility of wheel skid and loss of lateral stability.
ABS Component Function:
• Speed sensors and tone rings on each wheel monitor wheel rotation.
• Each speed sensor communicates wheel rotation pulses to the Electronic Control Unit.
• The ECU receives the speed sensor signal pulses to calculate speed and acceleration
rates of each wheel.
• Based on the speed sensor input, the ECU detects impending wheel lock and
operates the ABS Modulator Valves required for proper control. The Modulator
Valves are operated in the Air, Release or Hold modes to regulate air pressure to the
brake chambers.
• Braking force is applied at a level which minimizes the stopping distance while
maintaining as much lateral stability as possible.
ABS Warning Light:
The ABS will perform a dash indicator lamp check and self-diagnostic test each time the ignition is switched to
the on position.
• When the ignition is turned on, the ABS indicator illuminates momentarily (3 seconds) verifying the
self-diagnostic test. If the ABS indicator light remains on, or illuminates while the motorhome is being
operated, this indicates a fault in the anti-lock brake system. This fault will not affect normal service
braking. The motorhome will need to go to a service center to repair the problem.
INFORMATION:
If a fault code occurs, call a Bendix service locator at 1-800-247-2725 and take the
motorhome to the nearest repair facility.
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Summary of Contents for DYNASTY 2006
Page 12: ......
Page 18: ...18 SECTION 1 GENERAL INFORMATION DYNASTY 2006 NOTES...
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Page 61: ...DYNASTY 2006 DRIVING SAFETY SECTION 2 61 Weight Label 100179d...
Page 67: ...DYNASTY 2006 DRIVING SAFETY SECTION 2 67 Actual Worksheet 020255c...
Page 68: ...68 SECTION 2 DRIVING SAFETY DYNASTY 2006 Weight Record Sheet 020262...
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Page 118: ...118 SECTION 3 EXTERIOR INTERIOR CARE DYNASTY 2006 NOTES...
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Page 160: ...160 SECTION 4 APPLIANCES DYNASTY 2006 NOTES...
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Page 252: ...252 SECTION 7 LP GAS SYSTEMS DYNASTY 2006 NOTES...
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Page 280: ...280 SECTION 8 ELECTRICAL SYSTEMS HOUSE DYNASTY 2006 NOTES...
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Page 372: ...372 SECTION 10 CHASSIS INFORMATION DYNASTY 2006 METRIC U S CONVERSION CHART...
Page 374: ...374 SECTION 10 CHASSIS INFORMATION DYNASTY 2006...
Page 375: ...DYNASTY 2006 CHASSIS INFORMATION SECTION 10 375...
Page 377: ...Dynasty 2006 INDEX...
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