Active Suspension System

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Active Suspension System
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Suspension Systems

• Conventional suspension system
• Active suspension system

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Parameters that can be improved

• Ride Control
• Height Control
• Roll Control
• Dive Control
• Squat Control

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COMPONENTS

• A Computer or an electronic control unit (ECU)
• Sensors
• Actuator or Servo
• Adjustable shocks and springs

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Sensors And Controller
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Functions of Active Suspension

• Improves driver control, safety and stability,
  with or without a load .
• Eliminates sway and reduces roll on corners
• Reduces axle wrap
• Maximum safety
• Absorbs load, rather than resisting it, thereby
  ensuring a much more comfortable ride
• Eliminates the need for fitting extra blades
  which harden the ride
• Better handling and control in windy and rough
  road conditions
• Minimize wear on tires, shocks, shackles and leaf
  springs

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Roll on Corners
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DESCRIPTION OF THE PREFERRED EMBODIMENT
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Active suspension mimics the functions of the
human body

• The sensors are nerve ends
• The Electronic Control Unit represents our mind
• Wires connecting the whole thing are the central
  nervous system
• The servos and actuators resemble the
  muso-skelatel portion .

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Example
Mercedes CL coupe
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Draw-backs

• Need for a large external power source
• Complex control algorithms
• Complex closed-loop control systems.
• Requirement of fast-acting devices
• Increased cost

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Conclusion

• In the case of active
  suspension system, as in any other innovations of
  automotive technology, today's innovation is
  tomorrow's standard feature. Inspite of its high
  initial cost, let us expect to see them in the
  Indian roads soon. The trickle-down effect will
  take some time, but it'll happen and when such a
  time comes we can expect much lesser accidents,
  less fatalities and more comfort in driving the
  roads.