Week-4 Challenge WOT Condition Part-2

1.Difference between mapped and dynamic of engine , motor & generator :

ENGINE:

MAPPED ENGINE	DYNAMIC ENGINE
This engine represnts very small(macro) engine ,which has behaviour of lookup tables as a functions with the commanding load and engine speed will be measured EX: Brake torque efficiency	This engine has decomosing of engine behaviour into individual component to the account for the intaking of air flow and turbocharger dynamics

Note: This picture takes for reference from mathworks

Upcoming pictures represents the Mapped engine:

Figure 0.1 Figure 0.2

this Figure 0.1 represents the MAPPED CI ENGINE This figure 0.2 represents the MAPPED SI ENGINE

MAPPED CI ENGINE	MAPPED SI ENGINE
It consists of two input ports and two output ports, INPUT PORTS FuelMassCmd - Fuel mass command represented as F in mg/inj EngSpd - Engine speed represented as N in rpm OUTPUT PORTS Info - Information EngTrq - Engine torque T in N-m	It consists of two input ports and output ports , INPUT PORTS TrqCmd - Torque command EngSpd - Engine speed represented as N in rpm OUTPUT PORTS Info - information port EngTrq - Engine torque represented as T in N-m

Upcoming picture reprents the dynamic engine:

Figure 0.3 Figure 0.4

The figure 0.3 represents the DYNAMIC CI ENGINE The Figure 0.4 represents the DYNAMIC SI ENGINE

DYNAMIC CI ENGINE

DYNAMIC SI ENGINE

This engine has 6 input ports and 3 output ports , INPUT PORTS Fuelmass - Fuel injector pulse_width in mg per injection Soi - start of fuel injection timing Engspd - engine speed FuelPrs - Fuel rail pressure in MPa Ect - engine cooling temperature in K Intk - Intake port for pressure in Pa , Temperature in K,Enthalpy in j/kg,Mass fractions Exh - Exhaust port for pressure ,temperature , enthalpy , mass fractions OUTPUT PORTS: Info - Information port EngTrq - Engine brake torque Intk - intake port mass flow rate , heat flow rate , temperature , mass fraction Exh - Exhaust port mass flow rate , heat flow rate , temperature , mass fraction

This engine has 8 input ports and 3 output ports INPUT PORTS: InjPw - Fuel injector pulse-width in ms SpkAdv - Spark advance ICP - intake cam phase angle command ECP - exhaust cam phase angle command Ambprs - Ambient pressure in Pa EngSpd - Engine speed N in rpm Ect - Engine cooling temperature T in K Intk - intake port pressure , Temperature , enthalpy , mass fractions Exh - Exhaust port pressure , temperature , enthalphy , mass fractions OUTPUT PORTS : Info - information bus EngTrq - engine brake torque Exh - Exhaust port pressure , temperature , enthalphy , mass fractions Intk - intake port mass flow rate , heat flow rate , temperature , mass fraction

DIFFERENCE BETWEEN MAPPED AND DYNAMIC MOTOR AND GENERATOR:

MAPPED MODEL	DYNAMIC MODEL
It works with the actual components	It works on the data even in look up table

FIGURE 0.5

• Figure 0.5 represents the mapped and dynamic motor

MAPPED MOTOR:

Figure 0.6 Figure 0.7

• Figure 0.6 represents the mapped motor

DYNAMIC MOTOR :

Figure 0.8 Figure 0.9

• This Figure 0.8 represents the dynamic motor.

MAPPED AND DYNAMIC GENERATOR

Figure 0.10

dynamic generator mapped geberator

To changing model type :

• right click the motor block , by next the pop up window opens click varient - varient manager - motor - dynamic motor or mapped motor

2.) To calculate the model to miles per gallon :

For this objective , using the electric vehicle reference application

• This simulation represents the fully electrical vehicle reference application

this picture reprents how to enter into the perferming calculations to find out the how the models calculate miles per gallon.

This is how the model calculate the miles per gallon - m per gal

which factors are considered to model fuel flow

• vehicle speed
• battery power

3.Run the HEV refernece application with wide open throttle:

• Open HEV reference application by using the option in the top right corner in matlab window

• By Using The link autob1KHevstart the HEV reference application can be opend

OPENING THE HEV REFERENCE APPLICATION IN SIMULINK :

• Next step is to change into the DRIVE CYCLE FTP75 to WIDE OPEN THROTTLE

• this is the drive cycle source

• the drive cycle source is changed into WIDE OPEN THROTTLE

Now the Grade and wind velocity want to be changed

• these are blocks where the grid and wind velocity to be changed

gradeability changed to 7%:

wind velocity changed to 20:

the visuvalization gives the output:

the simulation is run for 2474S as per default.

pure electric vehicle:

hev output:

Pure ev output:

for both the HEV and Pure electric the step time to be default as 2474S.

motor & engine torque for EV And Hev:

Motor and engine speed for EV And Hev:

Battery Current for EV And Hev: