1. The Ride of the Future! Allows RVers to smoothly take the scenic route
full of curves and winding paths.

2. Why would I want HWH® Active Air?
With Active Air
Without Active Air
Windy conditions, curvy roads and aggressive lane changes can cause an RV to lean. HWH® Active Air senses such movements and adjusts the individual suspension air bags creating the proper ride height.

3. What is HWH® Active Air?
HWH® Active Air, is a four-point electronically controlled suspension system that provides ride comfort while driving by rapidly adjusting the suspension system toward proper height.
See US Patent # 6,665,597 B1

4. How does HWH® Active Air work?
See US Patent
#6,665,597 B1
Curve Anticipation:
Drivers anticipate turns by turning the steering wheel just before reaching the turn. With a sensor on the steering shaft, these reactions can be measured. When the vehicle enters the turn, data from the steering and height control sensors cause the CPU to activate a high flow air valve. This rush of air into the bag minimizes the sway of the vehicle.

5. Why is four point stability important?
It is critical while traveling down the road that the front air bags need to operate at the same pressure (example, in a sudden stop situation equal air pressure keeps the same braking force on both wheels). If the coach is heavier on one side, it does not overload the front tire, rather it spreads load over three tires (if tag axle), reducing the possibility of front tire blow outs.

6. Added Benefits of HWH® Active Air
HWH® Automatic Air Leveling Included!
HWH® Active Air Suspension Systems include our BI-AXIS® Automatic Air Leveling package. This allows you to level your coach, with the touch of a button, when you are parked.
Fuel economy mode!
Saves fuel while on straight-aways by reducing the response, resulting in less air consumption.
Manual over-ride!
Can be used when traveling below approximately 10 mph to raise the vehicle to clear obstacles such as steep driveways or lower vehicle to enter garages.
Driver selectable!
High, medium and low heights for front, right side or left side allow increased comfort on roads with high crowns, rough surfaces and windy conditions.

7. Added Benefits of HWH® Active Air (cont.)
Self-monitoring system!
Notifies the driver of conditions that need addressing.
Redundancy in systems!
In case of repairs the RV can be driven safely to a service center without the expense of towing fees.
Tech Service!
Tech service is available at HWH®

8. Front Air Manifold
Rear Air Manifold
Central Control Unit
Tag
Air Manifold
Color LCD Panel
Wheel Height Averaging Bar
Steering Sensor
Height Control Sensor

9. HWH® Systems Control Module
“A Total RV Control System”
HWH® Systems Control Module provides self-monitoring and control of the HWH® Active Air Suspension system. The Systems Control Module also offers features such as:
Full diagnostics onboard/Self-diagnostic capability
Aids in trouble shooting systems.
Compatibility of RV Components for seamless communication.
The Systems Control Module not only controls the suspension system it also controls
slide-outs ~ leveling systems ~ automatic steps ~ and much more.

10. How do the height control sensors work?
HWH® Advanced Design Height Control Sensors
Each sensor provides four channels of data:
Max High setting for getting out of rough terrain (campgrounds etc.)
High and Low settings to allow driver to manually adjust for high
crowns, rough surfaces and windy conditions.
Medium setting for normal use.
HWH® Height Control Sensors are ruggedly built to withstand the effect of running on roads with ice, snow, rocks, etc. No need to carry a spare!

11. Why is a Wheel Height Averaging Bar used?
See US Patent
#7,806,417
Wheel Height Averaging Bar:
Keeps the front of the vehicle at the proper ride height while counteracting the roll forces by adding air to the outside bag and removes air from the inside bag. This keeps the proper front height in long curves with rough roads. Unlike using stiff shock absorbers, tires have more freedom to track the road adding to driver comfort. The arrangement provides the stability of a four point suspension without the inerrant problems caused by a four point suspension.

12. How does the Steering Sensor work?
The Steering Sensor (located on steering shaft) detects steering wheel rotation to anticipate the driver’s intentions, thus alerting the automatic system that air bag adjustment may be necessary.

13. Communication
Tag Air
Manifold
RV-C CAN BUS
RV-C CAN BUS
Rear Air
Manifold
RV-C CAN BUS
Front Air
Manifold
Central Control Unit
Data from position sensors are evaluated in the HWH® Active Air central control unit. Front and rear air manifolds respond rapidly to the central control unit using RV-C (RV industry multiplexing standard) to inflate or deflate to keep the motorhome suspension at a constant height.

14. Active Air Summary Ride of the future.
Greatly improves handling fast lane changes and curves.
Four point stability with computer control pressure to keep from over loading front tires.
Includes Auto/Manual Air Leveling.
Ability for the driver to correct for crown in the road.
Provides variable height control to go over or under obstacles.