-- Siemens-Autonomie to simulate a model base design of midsize series hybrid electric vehicle -- Used FTP 75, HWFET and UDDS cycles to measure and record vehicle performance.

1. Component Sizing of
Plugin Hybrid Electric
Vehicle for Sub-Optimal
Fuel Efficiency and
emissions
Submitted By:
Mohit Suri

2. Plug-In Hybrid Electric
Vehicle
 Has an External Port for charging the
Vehicle.
 Can be charged from wall socket.
 During Starting, if SOC is low external
power source may charge the battery
instead of engine.
 Can have an On- board Charger to
increase the range.
 Two types-Parallel and Series.

3. Series Plug-in HEV

4. Autonomie - A simulation
tool
 Autonomie is a Plug-and-Play Vehicle
Model Architecture and Development
Environment.
 Math-based simulation environment.
 Autonomie is an open architecture to
support the rapid integration and analysis
of powertrain/propulsion systems.
 The software has been developed by
Argonne labs

5. Autonomie-GUI

6. Strategy and Cost function
 Initially Particle Swarm Optimization was proposed to
be used.
 Used Trail and Error technique to successfully
optimize the Cost function.
 The Cost Function here is Improving Fuel Economy
and reduce 𝐶𝑂2 emissions.
 Cost Function =min
X→Ω
F(X) , X = [𝑃𝑚, 𝑃𝑒, 𝑁𝑏𝑚, 𝐶𝑓] 𝑇
Where, Nbm = number of battery modules
Cf = fuel consumption
Pm = Motor Power
Pe = Engine Power

7. Model Configuration

8. Flow Chart

9. Sizing Engine
 Initially Engine size was to deliver
57KW of the power.
 Values of the Engine power were varied
between 60 and 46 KW.
 Simulation Showed that 48KW gave the
best fuel Economy.
 Engine Size with 48KW was taken as
optimized result on basis of Trial and
Error.

10. Optimized Engine Power-
Results

11. Best Results
Engine, Traction Motor, Motor 2 Power Vs Time
Battery Power Vs Time

12. Sizing the Motor
 Traction Motor plays a vital role in
improving the fuel economy of vehicle.
 Size of traction Motor was varied from
45 KW to 60KW.
 Motor with 52 KW came out to be the
best size for best fuel economy.
 Similarly Motor 2 Size was varied from
30 to 45 KW with best size being 33KW.

13. Optimized Traction Motor
Power-Results

14. Battery, Motor Power Vs Time
Engine, Motor Power Vs Time
Best Results

15. Sizing the Battery
 Battery Series parallel Configuration
was changed to get optimized Results.
 The Series/parallel cell configuration
was tried and results were obtained.
 Battery power of 5.8KWh was optimum.
SOC Vs Time

16. Changing Kp and Ki
 Kp and Ki Are the controller gains.
 Individual parametric study was done.
 Best values were selected to get
optimum values.

17. Best Optimum Results
Plugging in the Optimized values and
getting optimum result.

18. Thank You