The Control Algorithm for Adaptive Cruise Control (ACC) System is developed in NI Based LabVIEW Platform.

1. International Conference on Electronics and Communication
Systems-2016
Design of
Adaptive Cruise Control System
in LabVIEW Platform
Presented By:
Guided By:
Mr. J. Sam Jeba Kumar
Asst. Prof.,
Dept. of Instrumentation
and Control
SRM University
Chennai, India
Dr. A. Vimala Juliet
Prof. and Head,
Dept. of Electronics
and Instrumentation
SRM University
Chennai, India
P. Ramani Ranjan Senapati, M.Tech Scholar
Dept. of Electronics and Control
SRM University
Chennai, India

2. Agenda
• Introduction
• Adapted Methodology
• Design Procedure
• Controller Design and Validation
• Discussion of Results
• Conclusions
• Future Work
2Design of ACC in LabVIEW Platform

3. Introduction
I-DAS
ACC
ABS
Collisio
n
Warnin
g
TCS
Airbag
Blind
Spot
Monitor
Tire
Pressure
Control
E-Call
System
Lane
Keepin
g
Steering
Assistan
ce
WhyI-DAS???
Fig.1 Parameters of an I-DAS
3Design of ACC in LabVIEW Platform

4. Adaptive Cruise Control
Fig.2 ACC system based car following the front vehicle
4Design of ACC in LabVIEW Platform

5. Why LabVIEW???
Advantages of LabVIEW
• Graphical user interface
• Drag & Drop built in
functions
• Multi Platforms
• Reduces cost
• Flexibility and Scalability
• Simple Application
distribution
• Object oriented design
• And etc….
Application in Automotive
Industry
• Rapid control photo typing
• Hardware in loop simulation
• Diverse input output
• Automotive end-of-line test,
• real time simulation
• Test cell measurement in
vehicle data logging and
control
• Online noise analysis,
vibrations and harshness test
is easier.
5Design of ACC in LabVIEW Platform

6. Methodology
• Passengers Safety and comfort
– Constant Speed Control Sub mode
– Variable Speed Control Sub mode
– Emergency Stop Control Sub mode
• Optimal Fuel Consumption
6Design of ACC in LabVIEW Platform

7. Fig.3 Operation of 3 sub modes in ACC system
7Design of ACC in LabVIEW Platform

8. Fig.4 Overall block diagram of the developed system
8Design of ACC in LabVIEW Platform

9. Design Procedure
( ) throttle brake road friction
d
MV F F F F
dt
   
ur
Vehicle mass 1 unit
Gain due to Throttle applied force 0.01 unit
Gain due to Brake applied force 0.01 unit
Gain due to Road inclination applied
force
1 unit
Gain due to Friction applied force 0.01 unit
VehicleModelingUsingForceBalanced
Equation
9Design of ACC in LabVIEW Platform

10. 1
4.39
( )
0.1746
G s
s


2
1
( )
1
G s
s


Accelerator Model :
Brake Model :
is taken as 2.25.
BrakeandAcceleratormodel
selection
10Design of ACC in LabVIEW Platform

11. Constantspeedcontrollerdesigning
Anti Windup PID Controller
Fig.5 Block diagram of Anti windup PID controller
11Design of ACC in LabVIEW Platform

12. Controllerdesigningfortheproperselection
ofacceleratorandbrake
•Accelerator vs Velocity
• Brake vs Velocity
12Design of ACC in LabVIEW Platform

13. Overall Developed System
Vehicle Modeling Using
Force Balanced Equation
Brake and Accelerator
model selection
Constant speed controller
designing
Controller designing for the
proper selection of accelerator
and brake
ACC
13Design of ACC in LabVIEW Platform

14. Fig.6 Front panel diagram only when accelerator pedal is pressed by 40%
14Design of ACC in LabVIEW Platform

15. Fig. 7 Front panel diagram only when accelerator pedal is pressed by 40%
15Design of ACC in LabVIEW Platform

16. Fig. 8 Front panel diagram only when accelerator pedal is pressed by 40%
16Design of ACC in LabVIEW Platform

17. Fig. 9 Front panel diagram only when accelerator pedal is pressed by 40%
17Design of ACC in LabVIEW Platform

18. Conclusions
• Controller is designed depending on the
vehicle force balanced equation.
• Passengers Safety is taken into consideration.
• Fuel efficiency optimization is achieved in
some extent.
• Traditional PID, PI and Bang-Bang Controllers
are used.
18Design of ACC in LabVIEW Platform

19. Future Work
• PID controller should be optimized at the
starting of ACC mode.
• BLDC motor should be connected with the
throttle valve with Fuzzy Logic based position
algorithm.
• Model predictive controller based ACC vs PID
controller based ACC system.
19Design of ACC in LabVIEW Platform

20. References
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Design of ACC in LabVIEW Platform 20

21. Contd…
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Design of ACC in LabVIEW Platform 21

22. Contd…
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Conference, IEEE, pp. 548-551, May 2015.
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Design of ACC in LabVIEW Platform 22

23. Thank You !!!
23Design of ACC in LabVIEW Platform