1. Active Suspension System

2. Suspension Systems Conventional suspension system Conventional suspension system Active suspension system Active suspension system

3. Parameters that can be improved Ride Control Ride Control Height Control Height Control Roll Control Roll Control Dive Control Dive Control Squat Control Squat Control

4. COMPONENTS  A Computer or an electronic control unit (ECU)  Sensors  Actuator or Servo  Adjustable shocks and springs

6. Sensors And Controller

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

8. Roll on Corners

10. DESCRIPTION OF THE PREFERRED EMBODIMENT

11. Active suspension mimics the functions of the human body The sensors are nerve ends The sensors are nerve ends The Electronic Control Unit represents our mind The Electronic Control Unit represents our mind Wires connecting the whole thing are the central nervous system Wires connecting the whole thing are the central nervous system The servos and actuators resemble the muso- skelatel portion. The servos and actuators resemble the muso- skelatel portion.

13. Example Mercedes CL coupe

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

15. 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.