Week-4 Challenge WOT Condition Part-2
1.What is the difference between mapped and dynamic model of engine, motor and generator? How can you change model type.
Mapped moter or Static model,
It work faster and driven based on lookup table
Mpped motor and drive electronics operating in torque control mode specify Electrical torque range with torque speed envelope or maximum motor power and torque output torque tracks a torque referance demand and include a motor driver response time constant.
Dynamic model:
This model operates as a actual component and internal response model
Change model in Ev powertrain block
Use the variant manager in label mode
2.How does the model calculate miles per gallon? Which factors are considered to model fuel flow?
MPG or Miles per gallon is the distance messured in miles, that a car driven for one gallon of fuel. It is also used to mesure rimary mesurement of a cars fuel efficiency, The higher the car MPG, the more fuel efficient it is.
Vehicle speed data is used to calculate the distnce travelled in meters then converted to miles, battery power data is use o find the pwer in wh is converted to gasoline- equvalent using US EPA value by dividing with 33.7
US environmental protection agency(EPA) 1 gallon of gasoline is equal to 33.7kwh.
Dividing distance travelled in miles by the number of gallons we get per miles per gallon
3.Run the HEV ReferenceApplication with WOT drive cycle. Change the grade and wind velocity in the environment block. Comment on the results.
The above figure shows the result and plots are made in such a way that, there is a cursur measurement and if we change the cursur on one plot the cursor moves on the other plots which paves the way to study the result in better way the cursor enable us to study the behaviour of other result parameters corresponding to ehw accelaration of the vehicle.
4.Keeping all other parameters same, compare the simulated results of hybrid and pure electric powertrains.
Simulation done for 50sec and 40sec WOT drive cycle is used with WOT accelertion for 0-30sec achieving a max speed of 26.8m/s and decelarate for (30-40sec).