modelling & control of phev powertrain systemsashok/vd/vd_project_2018/group1.pdf · here we...
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Modelling & control of PHEV
powertrain systemsTeam – 1
Abhishek Rajput-ME14BTECH11002 Arvind Gulia-ME14BTECH11003
Chaitanya Dhakne-ME14BTECH11011 Jyonit Gupta-ME14BTECH11018
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Content
Introduction
Series vs. Parallel vs. Plug in Hybrid
Plug in Hybrid HEV
CAD models & components
Subsystems of model
Energy Management
Electrical
Planetary Gear
IC engine
Vehicle Dynamics
Results
Conclusion
References
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Introduction to Hybrid Electrical
Vehicle (HEV)
Hybrid vehicle which combines conventional IC engine system with an
electric propulsion system
Results into better fuel economy and better performance
This is also eco-friendly concept with low emissions
Regenerative braking – Energy wasted during braking is stored in battery
Less maintenance cost and more mileage due to motor and IC engine
Toyota company came up with this concept at first, implemented in Prius
Model in Japan, followed by Honda, Ford and Hyundai
Initial investing for buying is much more but later cost is less
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Series vs. Parallel vs. Plug in Hybrid4
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Plug-in Hybrid System
Here we are analyzing plug-in Hybrid powertrain system
In this, IC Engine and Electric Motor are to be interconnected to each other
for working
So different conditions plug in according to the power & torque required at
the output
At low power requirement, only electric motor will run
At high power requirement, IC engine will pitch in with Electric motor
In addition, for charging of battery, IC engine also can be used according
to requirement, which makes it Plug-In Hybrid System
This also improves efficiency of system compared to other ones
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CAD Model of full car
Isometric View
Side View
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CAD Model of the Drivetrain :7
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Simulink Block Diagram8
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Energy Management Subsystem
Controls and divides energy
requirement between IC engine &
Electric Motor
Input given to the system is speed and
acceleration given by driver
Output is given to Motor, Generator
and IC Engine
Also controls charging of battery by IC
engine
Uses SOC (State-Of-Charge) concept
for working of battery
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Electrical Subsystem
Includes all components related to
Electric motor, generator and converter
Input is given from Energy management,
IC engine and indirectly from driver
Controls switching between battery,
generator or IC engine
Also includes sensors to implement SOC
concept of charging
Output is given to planetary gear system
and vehicle dynamics model
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Gear and Engine Subsystems
Planetary Gear system
It takes much less space
compared to other ones
Efficiency is also high enough for
working
Finally reduces input to needed
output
IC Engine
Simple conventional engine,
based on Petrol, Diesel
Produces polluting emissions
Output given to gear box and
Electrical system for charging
purpose
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Vehicle Dynamics Subsystem
Contains all equations required
on load, traction and which
forces will come to exist
Takes input from planetary
gearbox and gives to the wheels
according to equations.
Involves the equations for inertia,
friction, torque etc.
This is like equations about how
vehicle reacts with road
condition with its available torque
and power
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Vehicle dynamics block
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Results13
Input as
acceleration
Output as
Engine speed
& torque
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Results (..contd)14
Output as
Motor torque
& rpm
Output as
Vehicle speed
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Conclusion
Here we modelled the plug-in hybrid system, by giving throttle input as step
input
This system is more efficient, specially for heavy load vehicles
Also fuel efficient along with less emissions
New technologies like regenerative braking, SOC making it more efficient
For light operations, series HEV is enough, but as load becomes heavy,
parallel followed by plug-in HEV gains importance
All these are expensive, but future maintenance cost is much less
Market is growing for these with leading company models like Toyota
Camry and Honda Accord.
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References
https://www.youtube.com/watch?v=iOmqgewj5XI
https://www.youtube.com/watch?v=J-JOn5xaZbQ
https://www.industry.usa.siemens.com/drives/us/en/electric-drives/hybrid-drives/automotive/hyb-sys-tabs/pages/parallel-hybrid.aspx
https://in.mathworks.com/help/physmod/sdl/examples/parallel-hybrid-transmission.html
https://pdfs.semanticscholar.org/1091/d5d5a0e9176e491971b9525f4c9594313c8e.pdf
https://in.mathworks.com/help/physmod/sps/examples/ipmsm-torque-control-in-a-series-parallel-hev.html
http://www.hybridcars.com/the-three-main-types-of-hybrids-explained/
https://auto.howstuffworks.com/car-models/plug-in-hybrids/plug-in-hybrid-car2.htm
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