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Active suspension-system

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VivekCholleti1

An active suspension system uses sensors, an electronic control unit, actuators and adjustable shocks/springs to actively adjust the suspension based on driving conditions like wheel speed, braking, and acceleration. It improves ride control, reduces body roll, and provides better handling, safety and passenger comfort compared to conventional passive suspension systems. However, active suspension systems are more complex and expensive than traditional systems.

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Active Suspension System CHUNCHU DHINESH 18285A0305
Suspension Systems Conventional suspension system Active suspension system
A computerized system in automobiles that actively adjusts the suspension in response to driving conditions.
Active suspension Body G-sensor Controller (ECU) Wheel Actuator
Wheel speed Brake condition Vertical acceleration Lateral acceleration Steering wheel position Vehicle level position SENSORS ECU SERVORS/ACTUATORS BASIC REPRESENTATION OF ACTIVE SUSPENSION
Parameters that can be improved Ride Control Height Control Roll Control Dive Control Squat Control
COMPONENTS A Computer or an electronic control unit (ECU) Sensors Actuator or Servo Adjustable shocks and springs
Active suspension-system
Sensors And Controller
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
Roll on Corners
Active suspension-system
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 .
Active suspension-system
Example Mercedes CL coupe
ADVANTAGES •Stabilizes the wheel independently. •Increases the overall grip of the vehicle, hence creating a safer ride. •It has soft spring which improves ride quality and passenger comfort. •Eliminates body role during high speed cornering. •Anti role bar is omitted. •Ride height is not affected by varying static load.
Draw-backs Need for a large external power source Complex control algorithms Complex closed-loop control systems. Requirement of fast-acting devices Increased cost
Conclusion In the case of active suspension system, as in any other innovations of automotive technology, today's innovation is tomorrow's standard feature. In spite 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.

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Active suspension-system

  • 1. Active Suspension System CHUNCHU DHINESH 18285A0305
  • 2. Suspension Systems Conventional suspension system Active suspension system
  • 3. A computerized system in automobiles that actively adjusts the suspension in response to driving conditions.
  • 5. Wheel speed Brake condition Vertical acceleration Lateral acceleration Steering wheel position Vehicle level position SENSORS ECU SERVORS/ACTUATORS BASIC REPRESENTATION OF ACTIVE SUSPENSION
  • 6. Parameters that can be improved Ride Control Height Control Roll Control Dive Control Squat Control
  • 7. COMPONENTS A Computer or an electronic control unit (ECU) Sensors Actuator or Servo Adjustable shocks and springs
  • 10. 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
  • 13. 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 .
  • 16. ADVANTAGES •Stabilizes the wheel independently. •Increases the overall grip of the vehicle, hence creating a safer ride. •It has soft spring which improves ride quality and passenger comfort. •Eliminates body role during high speed cornering. •Anti role bar is omitted. •Ride height is not affected by varying static load.
  • 17. Draw-backs Need for a large external power source Complex control algorithms Complex closed-loop control systems. Requirement of fast-acting devices Increased cost
  • 18. Conclusion In the case of active suspension system, as in any other innovations of automotive technology, today's innovation is tomorrow's standard feature. In spite 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.