Magic body control
-
Upload
sooraj-edappal -
Category
Education
-
view
523 -
download
7
Transcript of Magic body control
![Page 1: Magic body control](https://reader036.fdocuments.us/reader036/viewer/2022081421/589f071c1a28ab226b8b4943/html5/thumbnails/1.jpg)
MAGIC BODY CONTROL
Seminar Guide, Presented by, Mr. Jithu J Sooraj k Asst. Professor Roll no:64Mechanical Dept.
![Page 2: Magic body control](https://reader036.fdocuments.us/reader036/viewer/2022081421/589f071c1a28ab226b8b4943/html5/thumbnails/2.jpg)
2
SCHEME OF PRESENTATION Introduction Classification Magic body control Components Working Driving modes Comparison Vehicle performance Equipped vehicles Merits and demerits References
![Page 3: Magic body control](https://reader036.fdocuments.us/reader036/viewer/2022081421/589f071c1a28ab226b8b4943/html5/thumbnails/3.jpg)
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
![Page 4: Magic body control](https://reader036.fdocuments.us/reader036/viewer/2022081421/589f071c1a28ab226b8b4943/html5/thumbnails/4.jpg)
4
CLASSIFICATIONSUSPENSION SYSTEM
PASSIVE
ADAPTIVE
ACTIVE
![Page 5: Magic body control](https://reader036.fdocuments.us/reader036/viewer/2022081421/589f071c1a28ab226b8b4943/html5/thumbnails/5.jpg)
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.
![Page 6: Magic body control](https://reader036.fdocuments.us/reader036/viewer/2022081421/589f071c1a28ab226b8b4943/html5/thumbnails/6.jpg)
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.
![Page 7: Magic body control](https://reader036.fdocuments.us/reader036/viewer/2022081421/589f071c1a28ab226b8b4943/html5/thumbnails/7.jpg)
7
COMPONENTS
Electronic control unit(ECU) Stereo camera Reservoir Sensors Hydraulic servo mechanism Coil springs and Shock absorbers
![Page 8: Magic body control](https://reader036.fdocuments.us/reader036/viewer/2022081421/589f071c1a28ab226b8b4943/html5/thumbnails/8.jpg)
8
![Page 9: Magic body control](https://reader036.fdocuments.us/reader036/viewer/2022081421/589f071c1a28ab226b8b4943/html5/thumbnails/9.jpg)
9
STEREO CAMERA Located on
wind screen
Continually monitor the road surface ahead 15 meters
![Page 10: Magic body control](https://reader036.fdocuments.us/reader036/viewer/2022081421/589f071c1a28ab226b8b4943/html5/thumbnails/10.jpg)
10
ELECTRONIC CONTROL UNIT (ECU)
Calculates the current driving status
Independent controlling of shock absorbers
RESERVOIR Used to store oil
Supplies the oil to the servomechanism as per the command of ECU
![Page 11: Magic body control](https://reader036.fdocuments.us/reader036/viewer/2022081421/589f071c1a28ab226b8b4943/html5/thumbnails/11.jpg)
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
![Page 12: Magic body control](https://reader036.fdocuments.us/reader036/viewer/2022081421/589f071c1a28ab226b8b4943/html5/thumbnails/12.jpg)
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.
![Page 13: Magic body control](https://reader036.fdocuments.us/reader036/viewer/2022081421/589f071c1a28ab226b8b4943/html5/thumbnails/13.jpg)
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.
![Page 14: Magic body control](https://reader036.fdocuments.us/reader036/viewer/2022081421/589f071c1a28ab226b8b4943/html5/thumbnails/14.jpg)
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
![Page 15: Magic body control](https://reader036.fdocuments.us/reader036/viewer/2022081421/589f071c1a28ab226b8b4943/html5/thumbnails/15.jpg)
15
![Page 16: Magic body control](https://reader036.fdocuments.us/reader036/viewer/2022081421/589f071c1a28ab226b8b4943/html5/thumbnails/16.jpg)
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
![Page 17: Magic body control](https://reader036.fdocuments.us/reader036/viewer/2022081421/589f071c1a28ab226b8b4943/html5/thumbnails/17.jpg)
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.
![Page 18: Magic body control](https://reader036.fdocuments.us/reader036/viewer/2022081421/589f071c1a28ab226b8b4943/html5/thumbnails/18.jpg)
18
DRIVING MODES
Comfort
sport
![Page 19: Magic body control](https://reader036.fdocuments.us/reader036/viewer/2022081421/589f071c1a28ab226b8b4943/html5/thumbnails/19.jpg)
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
![Page 20: Magic body control](https://reader036.fdocuments.us/reader036/viewer/2022081421/589f071c1a28ab226b8b4943/html5/thumbnails/20.jpg)
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.
![Page 21: Magic body control](https://reader036.fdocuments.us/reader036/viewer/2022081421/589f071c1a28ab226b8b4943/html5/thumbnails/21.jpg)
21
COMPARISON
Reduced pitching
![Page 22: Magic body control](https://reader036.fdocuments.us/reader036/viewer/2022081421/589f071c1a28ab226b8b4943/html5/thumbnails/22.jpg)
22 Reduced rolling tendency
![Page 23: Magic body control](https://reader036.fdocuments.us/reader036/viewer/2022081421/589f071c1a28ab226b8b4943/html5/thumbnails/23.jpg)
23
VEHICLE PERFORMANCE
![Page 24: Magic body control](https://reader036.fdocuments.us/reader036/viewer/2022081421/589f071c1a28ab226b8b4943/html5/thumbnails/24.jpg)
24
EQUIPPED VEHICLES
Mercedes-Benz S class
Rolls Royce Ghost
![Page 25: Magic body control](https://reader036.fdocuments.us/reader036/viewer/2022081421/589f071c1a28ab226b8b4943/html5/thumbnails/25.jpg)
25
MERITS
Stability at all time High level of ride comfort Minimizing uncomfortable body movements Successful elimination of roll and pitch
DEMERITSHigh initial costMalfunctioning can lead to a big collapseRequire super quick micro-computers
![Page 26: Magic body control](https://reader036.fdocuments.us/reader036/viewer/2022081421/589f071c1a28ab226b8b4943/html5/thumbnails/26.jpg)
26
REFERENCES “Automobile engineering” by Dr. Kripal Singh “Fast track” magazine A journal on modern suspension systems by
Ishan Raghava www.mercedes-benz.com www.automobilemag.com https://media.daimler.com/dcmedia