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Magic body control


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power point presentation based on the new suspension technology invented by Mercedes Benz called "Magic body control"

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Magic body control

  1. 1. MAGIC BODY CONTROL Seminar Guide, Presented by, Mr. Jithu J Sooraj k Asst. Professor Roll no:64 Mechanical Dept.
  2. 2. SCHEME OF PRESENTATION  Introduction  Classification  Magic body control  Components  Working  Driving modes  Comparison  Vehicle performance  Equipped vehicles  Merits and demerits  References 2
  3. 3. INTRODUCTION  What is suspension system?  System which isolating automobile from road shocks  Consist of springs, dampers, Tires  Objective of suspension system  To prevent the road shocks transmitted  To safeguard occupants and passengers from road shock  To preserve stability 3
  5. 5. WHY MAGIC BODY CONTROL?  With the world’s first suspension system with “eyes”.  Like riding on a flying carpet.  Satisfying all requirements.  A magical combination. 5
  6. 6. 6 o Magic body control suspension system is an electronically controlled active suspension system o A stereo camera on the wind screen continually monitor the road surface. oTogether with the information on the driving conditions, the control unit continually calculates the best control strategy for dealing with unevenness in the road o Created by Mercedes-Benz o Project Manager is Stefan Cytrynski.
  7. 7. COMPONENTS  Electronic control unit(ECU)  Stereo camera  Reservoir  Sensors  Hydraulic servo mechanism  Coil springs and Shock absorbers 7
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  9. 9. STEREO CAMERA 9  Located on wind screen  Continually monitor the road surface ahead 15 meters
  10. 10. ELECTRONIC CONTROL UNIT (ECU)  Calculates the current driving status  Independent controlling of shock absorbers 10 RESERVOIR  Used to store oil  Supplies the oil to the servomechanism as per the command of ECU
  11. 11. SENSORS  The sensors continually monitor body movement and vehicle level and supply the controller with new data every ten milliseconds  Four level sensors, one at each wheel measure the ride level of the vehicle 11
  12. 12. 12  Three acceleration sensors called longitudinal, lateral, vertical acceleration sensors  The Longitudinal Acceleration Sensor reports acceleration and deceleration.  The Lateral Acceleration Sensor detects transverse or side-to-side movements.  Three Vertical Acceleration Sensors detect lifting motion and pitch and roll of the body.
  13. 13. HYDRAULIC SERVO MECHANISM  It is a mechanism that uses automatic feedback and hydraulics to correct the performance of a machine  ECU directs the hydraulic servomechanisms on how to correct the car's positioning. 13
  14. 14. COIL SPRINGS AND SHOCK ABSORBERS  Coil spring is the most common type of spring found on modern vehicles  Low cost and compact size  Shock absorber keeps the suspension from continuing to bounce after spring compression and extension 14
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  16. 16. WORKING  The stereo camera scan the road surface and provide corresponding signals to the ECU.  ECU determines the amount of pressure to be built in servo mechanism according to various signals from sensors 16
  17. 17. 17  The sensors and hydraulic servo mechanism generates forces to counteract the effects of the road surface.  By these combination the suspension take action before the wheels reach them.
  18. 18. DRIVING MODES 18  Comfort  sport
  19. 19. COMFORT MODE  Sensitive response and soft damping characteristics  The suspension level is automatically adjusted depending on the road speed.  Vehicle is lowered by ten millimeters at speeds over 120 km/h 19
  20. 20. SPORT MODE  Shock absorbers have more stiffer response than comfort mode  Vehicle is lowered by10 millimeters at speeds below 120km/h  Besides these driving modes driver is able to select a suspension setting raised by 30 millimeters. 20
  21. 21. COMPARISON 21 Reduced pitching
  22. 22. 22  Reduced rolling tendency
  24. 24. EQUIPPED VEHICLES  Mercedes-Benz S class  Rolls Royce Ghost 24
  25. 25. 25 MERITS  Stability at all time  High level of ride comfort  Minimizing uncomfortable body movements  Successful elimination of roll and pitch DEMERITS High initial cost Malfunctioning can lead to a big collapse Require super quick micro-computers
  26. 26. REFERENCES  “Automobile engineering” by Dr. Kripal Singh  “Fast track” magazine  A journal on modern suspension systems by Ishan Raghava    26