v2v cruise control
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The Concept and Simulation of Eco-friendly Cruise Control
Prepared for EV Systems Modeling, Simulation and Testing I (PT9)
ByJun Steed Huang, Botao Zhu, Xiaohui Guo and Zujue Chen
Tuesday, March 6, 2012
The first IEEE International Electric Vehicle Conference
Power Matters.
CONFIDENTIAL FOR CAVIUM
A quiet place for studying 1551 Years!
3.1415926 found by Wenyuan at AD461 remained the most accurate approximation for following 900+ years, was originated from Zhenjiang, Jiangsu where our University is located!
2The first IEEE International Electric Vehicle Conference
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Agenda
INTRODUCTION
FREE SPACE OPTICAL MESH NETWORK
FRACTAL TRAFFIC ANALYSIS
MATLAB SIMULATIONS
CONCLUSION AND FUTURE WORK
3The first IEEE International Electric Vehicle Conference
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Does cruise save energy at all?
4The first IEEE International Electric Vehicle Conference
Insist a FIXED speed is the problem, too much breaks. Should let nature take its course:
Eco-friendly Cruise Cruise (ECC) does not set the fixed speed, we only set the upper and lower limits:
•let the car slow down by itself, when there is a car in front, •or speed up when the car behind is pushing.
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2004 fatal crash statistics for Canada
5
type percentage
Run off road 32%
Hit object 23%
Head on collision 21%
Rear hit 6%
Side swipe 3%
The first IEEE International Electric Vehicle Conference
Cooperative driving assistant system is needed …
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Free Space Optical Meshed Cruising
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Back to square one – just light
Out of sight out of mind – care your immediate neighbor
Road Site Units
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Speed and Location Accuracy
7
Technology Speed Location Note
GPS 0.1 mps 100m Not available every where
RSU 0.02 mps 1m Costly deployment
Phone 0.3 mps 150m Forget to bring the phone
Engine 0.3 mps NA Need an anchor point
The first IEEE International Electric Vehicle Conference
May need combination of all …
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How birds are doing their job?
8The first IEEE International Electric Vehicle Conference
bf
fbbfm
DD
DVDVV
Front “bird” Middle “bird” Back “bird”
•Never fatal crash with each other (have you seen)
•always chatting to keep crowd efficiently faster (get to food)
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What safe and saving rules to enforce?
9The first IEEE International Electric Vehicle Conference
•The car should not drive in the blind spot of the cruise car; •The car should not drive in position the cruise car falls in its blind spot;
•The car should not drive side by side, it blocks the passing traffic; •The car should maintain the same distance between the front and the back car.
“The car”
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Traffic analysis method comparison
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method Pros Cons
Queuing Delay bound No rush hour
Matrix Numerical fitting No Fractal
Deterministic Rush hour analysis No distribution
Dynamic Chaotic analysis No empiric
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Each has its own merits, we use rush hour analysis for this particular study
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Self similar or Fractal phenomenon
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Mandelbrot defined the Fractal as “part and the whole are similar by some form”
Bird view
9AM
11AM
1PM
USA NEXUS measurement
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Cruise as bird is efficiently and safely faster!
12The first IEEE International Electric Vehicle Conference
Allow cruise speed variations between 75km/hr to 115 km/hr
Coordinate like a bird
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Conclusion and future work
The conceptual networked cruise model and its related design issues are addressed.
Simulations regarding Fractal traffic are touched upon, to promote the green and safe driving concepts.
In the future, the simulations combining both physical layers light design
and road dynamics test will get us much closer to the real world scenarios.
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Formula 1 “DIY” by our Jiangsu University students
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Do it yourself (DIY) 2011 Racing
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NJLECO
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