Mohit+suri presentation

Component Sizing of Plugin Hybrid Electric

Vehicle for Sub-Optimal Fuel Efficiency and

emissions

Submitted By:Mohit Suri

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.

Series Plug-in HEV

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

Autonomie-GUI

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 emissions. Cost Function = , X = Where, Nbm = number of battery modules Cf = fuel consumption Pm = Motor Power Pe = Engine Power

Model Configuration

Flow Chart

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.

Optimized Engine Power-Results

Best Results

Engine, Traction Motor, Motor 2 Power Vs Time

Battery Power Vs Time

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.

Optimized Traction Motor Power-Results

Battery, Motor Power Vs Time

Engine, Motor Power Vs Time

Best Results

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

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

optimum values.

Best Optimum ResultsPlugging in the Optimized values and getting optimum result.

Thank You