Week-4 Challenge WOT Condition Part-2
# Question no:2
- Model:
- Performance calculations:
- Scope Output:
- Miles per gallon calulations:
- The vehicle speed is integrated hence the output of it is distance in meters.
- Battery power is converted into m^3 per gallon
- Distance in mile is divided with gallons which gives miles per gallon of vehicle.
-To calculate the fuel flow, vehicle speed and battery power are taken into consideration.
-When vehicle is accelerated the the battery draws more current.and motor torque is also incresed.
-The battery SOC is decresing as the vehicle travelles distance.
- When the vehicle is stationary the fuel economy is also constant.
# Question no. 3 and 4:
- Model:
- Performance calculations:
- Scope Output:
- In HEV the Fuel flow is present with battery and vehicle speed block.
- As vehicle accelerated it is taking more battery current.
-The battery SOC is decreasing as the distance travelled is incresing.
- Comparison:
- EV is having more fuel efficiency than HEV.
-In HEV the battery is discarging rapidly. But in EV battery discharing rate is slower.
# Question no :1
1. Mapped:-
- CI mapped engine:
-SI mapped engine:
-Implementation:
Model uses a set of steady lookup table to characterize thebengine parameters. It is used when you have engine data from a dynamometer or a design tool like GT-power.
The table provides overall engine characteristics including actul torque, fuel flow rate,BSFC and engine out exhaust emmision. It is used for quasi- steady state engine simulator.
- When to use:
It is used when you have engine data from a dynamometer or a design tool like GT-power. used for quasi- steady state engine simulator.
2. Dynamic:
- CI engine
-SI engine:
- Implementation: Model decomposes the engine behaviour into engine characteristics that are seperated into lower level components. By combining components in this way, the models capture the dynamic effects.
- When to use: If you need a more detailed dunamic model and have components-level data. To analyze the impact of individual engine components on the overall performane.