Project 2
Aim:-
As discussed in Lecture 11, Project 2 deals with the development of a forward energy-based fuel consumption model of a P1 hybrid vehicle. The main goal of this project is to understand the functionality of a P1 hybrid and be able to model it.
Honda Insight motor and battery are considered for this project. Data is taken from ADVISOR data base developed by NREL, USA. Data provided in the project files.
“Project2_InitFile.m” is a Matlab script used to load all the variables required for running the Simulink model and for post-processing. The drive cycle selection is also done here. Before running the Simulink vehicle model, run this initialization script.
Task:
The task of this project is to quantify the improvement in fuel economy numbers for the hybrid vehicle (kmpl), compared to the conventional vehicle, on the urban cycle (UDDS) and highway cycle (HWFET). Also, to analyze and understand the vehicle operating points in terms of engine and motor speed, torque, transmission speeds, pedal positions, gear, distance traveled, battery voltage, current, SoC etc.
To do that, the following steps need to be followed:
1) Load the Project2 folder as the Current Folder in Matlab.
2) Run the “Project2_InitFile.m” Matlab script.
3) Copy the Conventional vehicle Simulink model created for Project 1 in this folder. Figure 1: P1 Hybrid ArchitectureHybrid Drives Development
4) Modify this model into a hybrid vehicle model. The lecture presentations can be used as reference. Battery and Supervisory controller models developed in the assignments can be reused.
5) Add additional ‘To Workspace’ blocks for transferring the desired Simulink vehicle data into the Matlab workspace.
6) Simulate the hybrid model on the desired drive cycles.
7) Write a project report that contains the following:
a. Tabulate the fuel economy numbers (kmpl) for UDDS and HWFET cycle. Compare these numbers with the baseline numbers for conventional vehicle model from Project 1.
b. Plot the time trace for engine, transmission input, transmission output and wheel speed on one plot.
c. Plot engine torque, engine power, fuel rate and fuel consumption using subplots.
d. Plot accelerator and brake pedal, gear command, vehicle desired and actual speed, vehicle distance using subplots.
e. Plot the engine operating points on the engine fuel map.
f. Plot motor speed, torque, motor input power using subplots.
g. Plot pack voltage, current and SoC using subplots.
h. Plot the motor operating points on the motor input power map, with the motor max motoring and generating torque curves.
i. Write down appropriate brief comments on each of these plots, describing the vehicle behavior throughout the drive cycle.
j. Generate the plots for both drive cycles.
Case 1 UDDS DRIVE CYCLE:-
Matlab code for ‘project2_intifile’
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Skill-Lync -> Hybrid Drives Development
% Project 2 - hybrid Vehicle Model
% By - Ullekh Gambhira
% Description:
%% Initialization File
% Initialization file for loading the variables for the Conventional vehicle simulation model
%% Vehicle Parameters
M = 1500; % Vehicle weight [kg]
Cr = 0.015; % Rolling resistance coefficient
Rw = 0.35; % Rolling radius [m]
Cd = 0.33; % Drag coefficient
Af = 2; % Frontal area [m2]
rhoa = 1.225; % Air density [kg/m3]
Vwind = 0; % Wind velocity [kmph]
g = 9.81; % Gravitational acceleration [m/s2]
theta = 0; % Slope [deg]
myu_road_tire = 1; % Coefficient of friction between tire - road interface
%% Powertrain Parameters
FDR = 3.73; % Final Drive Ratio / Diff Ratio
DiffEff = 0.99; % Differential efficiency (assumed independent of operating conditions)
NumGear = 4; % Number of gears in transmission
TransGear = [1:NumGear]; % Transmission Gears
TransRatio = [3.06, 1.62, 1, 0.7]; % Corresponding Transmission ratios
TransEff = 0.90; % Transmission efficiency (assumed independent of operating conditions)
TC_SR = [0, .5, .6, .7, .8, .87, .92, .94, .96, .97, 1]; % Torque Converter Speed Ratio (Matlab default) -> TurbSpd/PumpSpd
TC_TR = [2.232, 1.5462, 1.4058, 1.2746, 1.1528, 1.0732, 1.0192, 1, 1, 1, 1]; % Torque Converter Torque Ratio (Matlab default) -> TurbTrq/PumpTrq
TC_Cf = 1e-4 * [.72558, .66322, .63463, .59042, .51331, .4144, .29287, .22444, .12186, .04386, 0]; % Torque Converter Capacity Factor (Matlab default) -> PumpTrq/PumpSpd^2 [Nm/rpm^2]
load Vehicle_Data/Engine_data_1_9L_Saturn_95kW
load Vehicle_Data/Trans_Shift_map
load Vehicle_Data/EM_Honda_Insight_10kW
load Vehicle_Data/ESS_NiMH6
ESS_init_soc = 0.8;
ESS_soc_max = 0.9;
ESS_soc_min = 0.6;
%% Driver Parameters
Kp = 10; % P gain for driver PI model
Ki = 1; % I gain for driver PI model
Drive_Cycle_Select = 1; % Drive cycle selection
% Drive cycle values in m/s
if Drive_Cycle_Select == 1
load DriveCycles/UDDS;
elseif Drive_Cycle_Select == 2
load DriveCycles/HWFET;
elseif Drive_Cycle_Select == 3
load DriveCycles/FTP;
elseif Drive_Cycle_Select == 4
load DriveCycles/US06;
elseif Drive_Cycle_Select == 5
load DriveCycles/NEDC;
elseif Drive_Cycle_Select == 6
load DriveCycles/WLTP;
end
time_end = cyc_time(end);
vel_end = cyc_vel(end);
Simulink Model:-
Vechile Model:-
Driver:-
UDDS Drive cycle Plot:-
Controller:-
1.Controller chart:-
2.Engine control unit:-
Idle speed controller
Plot:-
3.Transmission control unit:-
Shift logic:-
4.Electric motor control unit:-
5.Brake control unit:-
UDDS Drive cycle Plot for controller:-
Power Train:-
Engine:-
UDDS Drive cycle Plot:-
Crank hub:-
Plot:-
Electric motor:-
Plot:-
Transmission:-
UDDS Drive cycle Plot:-
Torque Converter:-
UDDS Drive cycle Plot:-
1.
Diffrential:-
Wheel:-
Vechile dyanamics:-
UDDS Drive cycle Plot:-
1.
2.
Battery:-
SOC:-
Terminal voltage:-
Matlab code for Project2_processingfile:-
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Skill-Lync -> Hybrid Drives Development
% Project 2- hybrid Vehicle Model
% By - Ullekh Gambhira
% Description:
% The following file is to used with the Initialization file and Simulink
% results for post-processing of the data.
% The file is incomplete, has some examples of how the data is imported
% into a readable format, data analysis and plotting examples.
% Based on the project task, use commands in a similar format as given
% below, to analyse the data and generate required plots.
% You can change variable names if desired
%% Post-Processing File
% File for post-processing the Conventional vehicle simulation model data
%% Renaming variables
Time = out.tout;
Acc_Pdl = out.Acc_Pdl; % Accelerator pedal [%]
Brk_Pdl = out.Brk_Pdl; % Brake pedal [%]
Gear_Cmd = out.Gear_Cmd; % Transmission gear
Trans_In_Spd = out.Trans_In_Spd*30/pi; % Transmission input speed [rpm]
Trans_Out_Spd = out.Trans_Out_Spd*30/pi;% Transmission output speed [rpm]
Eng_Trq = out.Eng_Trq; % Engine brake torque [Nm]
Eng_Spd = out.Eng_Spd*30/pi; % Engine speed [rpm]
Eng_Fuel_Consump = out.FuelConsumption; % Engine fuel consumption [g]
Veh_Dist = out.Vech_Dist/1000; % Distance traveled by vehicle [km]
Veh_Spd = out.Vech_Spd*18/5; % Vehicle speed [kmph]
wheel_speed=out.wheel_speed; % Wheel speed[kmph]
Eng_Fuel_Rate = out.Eng_Fuel_Rate;
EM_Spd = out.EMSpd;
EM_Trq = out.EMTrq;
EM_in_Pwr_w = out.EmPwr;
Pack_Current= out.pack_current;
Term_Volt = out.Term_volt;
SOC = out.soc
%% Data Analysis
Eng_Pwr = Eng_Spd.*pi./30.*Eng_Trq./1000; % Engine brake power [kW]
rho_petrol = 0.7197; % Density of petrol [kg/L]
kmpl = Veh_Dist(end)/(Eng_Fuel_Consump(end)/1000/rho_petrol); % Fuel economy [kmpl]
%% Plotting vehicle characteristics time trace
figure(1)
subplot(3,1,1)
hold on
grid on
plot(Time, Acc_Pdl, 'linewidth', 1, 'Color', 'black');
plot(Time, Brk_Pdl, 'linewidth', 1, 'Color', 'red');
ylabel('Pedal [%]')
xlim([0, Time(end)]);
legend('Accel','Brake');
subplot(3,1,2)
hold on
grid on
plot(Time, Trans_In_Spd, 'linewidth', 1, 'Color', 'black');
plot(Time, Trans_Out_Spd, 'linewidth', 1, 'Color', 'red');
ylabel('Speed [rpm]')
xlim([0, Time(end)]);
ylim([0, 6000]);
legend('Trans Input','Trans Output');
subplot(3,1,3)
hold on
grid on
plot(Time, Gear_Cmd, 'linewidth', 1, 'Color', 'black');
xlim([0, Time(end)]);
xlabel('Time [s]');
ylabel('Gear');
%% Plotting engine operating points on engine fuel map
figure('Name','Engine Operating Points');
hold on
grid on
title('Engine Operating Points','fontsize',12);
p1=plot(Eng_map_spd*30/pi,Eng_max_trq,'linewidth',2,'color','r');
p2=line([Eng_map_spd(end)*30/pi Eng_map_spd(end)*30/pi],[0 Eng_max_trq(end)]);
set(p2,'linewidth',1,'linestyle','--','color','k');
p3=line([Eng_map_spd(1)*30/pi Eng_map_spd(1)*30/pi],[0 Eng_max_trq(1)]);
set(p3,'linewidth',1,'linestyle','--','color','k');
[c,h] = contour(Eng_map_spd'*30/pi,Eng_map_trq,Eng_fuel_map');
clabel(c,h);
xlabel('Engine Speed [rpm]');
ylabel('Engine Torque [Nm]');
title('Engine Fuel Consumption Map [g/s]');
p4 = plot(Eng_Spd,Eng_Trq,'.','color','k');
legend([p1 p4],{'Max Curve','Operating Points'});
axis([Eng_map_spd(1)*30/pi Eng_map_spd(end)*30/pi 0 Eng_map_trq(end)]);
%% Plotting vehicle characteristics time trace engine torque, engine power, fuel rate and fuel consumption
figure(3)
subplot(4,1,1)
plot(Time, Eng_Trq, 'LineWidth',1,'Color','g')
xlabel('Time [s]')
ylabel('Torque [Nm]')
legend ('Torque')
subplot(4,1,2)
plot(Time, Eng_Pwr, 'LineWidth',1,'Color', 'black')
xlabel('Time [s]')
ylabel('Power [kW]')
legend('Engine Power')
subplot(4,1,3)
plot(Time, out.Eng_Fuel_Rate, 'LineWidth',1,'Color', 'red')
xlabel('Time [s]')
ylabel('Fuel Rate [%]')
legend('Fuel Rate')
subplot(4,1,4)
plot(Time, Eng_Fuel_Consump, 'LineWidth',1,'Color','blue')
xlabel('Time [s]')
ylabel('Fuel Consumption [kmpl]')
legend('Fuel Consumption')
%% Plotting vehicle characteristics time trace Engine, Transmission Input, Transmission Output and Wheel
figure(4)
subplot(4,1,1)
hold on
grid on
plot(Time, Eng_Spd, 'LineWidth',1, 'Color','g');
xlabel('Time [s]')
ylabel('Eng_Spd [rpm]')
legend('Engine Speed')
subplot(4,1,2)
plot(Time, Trans_In_Spd, 'LineWidth',1,'Color','black');
xlabel('Time [s]')
ylabel(' Trans_In_Spd [rpm]')
legend(' Trans_Input')
subplot(4,1,3)
plot (Time, Trans_Out_Spd, 'LineWidth', 1, 'Color', 'red');
xlabel('Time [s]')
ylabel(' Trans_Out_Spd [rpm]')
legend(' Trans_Output')
subplot(4,1,4)
plot(Time, wheel_speed, 'LineWidth',1,'Color','blue');
xlabel('Time [s]')
ylabel(' wheel_speed [rpm]')
legend(' wheel_speed')
%% plotting for drive cycle
figure(5)
plot(cyc_time, cyc_vel*(18/5), 'linewidth', 1, 'Color', 'green')
hold on
plot(Time,Veh_Spd, 'linewidth', 1, 'Color', 'red')
xlabel('Time [s]')
ylabel('Vehicle Velocity (Km/h)')
legend('Vehicle Desired Velocity', 'Vehicle Actual Speed')
%% Plotting motor speed, torque, motor input power
figure (6)
subplot (3,1,1)
plot (Time, EM_Trq, 'LineWidth', 1, 'Color', 'g')
xlabel('Time [s]')
ylabel('Torque [Nm]')
legend ('Torque')
subplot (3,1,2)
plot (Time, EM_in_Pwr_w, 'LineWidth', 1, 'Color','black')
xlabel('Time [s]')
ylabel('Power [kW]')
legend ('Engine Power')
subplot (3,1,3)
plot (Time, EM_Spd, 'LineWidth', 1, 'Color', 'red')
xlabel('Time [s]')
ylabel('EM speed')
legend('EM SPEED')
%%Plotting pack voltage, current and SoC
figure (7)
subplot(3,1,1)
plot (Time, Pack_Current, 'LineWidth', 1, 'Color', 'g')
xlabel('Time [s]')
ylabel("CURRENT")
legend ("current")
subplot (3,1,2)
plot (Time, Term_Volt, 'LineWidth', 1, 'Color', 'black')
xlabel("Time [s]")
ylabel('Voltage')
legend('Voltage')
subplot (3,1,3)
plot (Time, SOC, 'LineWidth', 1, 'Color', 'red')
xlabel('Time [s]')
ylabel("SOC")
legend ("SOC")
%% Plotting electric motor points on EM map
figure('Name','Motor Operating Points');
hold on
grid on
title('Motor Operating Points','fontsize',12);
p1=plot(EM_map_spd*30/pi,EM_max_trq,'linewidth',2,'color','r');
p2=line([EM_map_spd(end)*30/pi EM_map_spd(end)*30/pi],[0 EM_max_trq(end)]);
set(p2,'linewidth',1,'linestyle','--','color','k');
p3=line([EM_map_spd(1)*30/pi EM_map_spd(1)*30/pi],[0 EM_max_trq(1)]);
set(p3,'linewidth',1,'linestyle','--','color','k');
[c,h] = contour(EM_map_spd'*30/pi,EM_map_trq,EM_inpwr_map');
clabel(c,h);
xlabel('EM Speed [rpm]');
ylabel('EM Torque [Nm]');
title('EM Input Power ');
p4 = plot(EM_Spd, EM_Trq,'.','color','k');
legend([p1 p3],{'Max Curve', 'Operating Points'});
axis([EM_map_spd(1)*30/pi EM_map_spd(end)*30/pi 0 EM_map_trq(end)]);
Plot for UDDS CYCLE:-
Figuer 1(Vechicle Characterestics time trace accleration and brake pedal,gear command,vechicle desired and actual speed):-
In this plot 3 subplot.
- In the first sub-category the Accelerator pedal and Brake pedal application are percentage designed for
driving cycle.
- The accelerator pedal and brake pedal are used according to the driving cycle.
iii. In the second sub-phase the transfer input speed and transfer output speed is set to
driving cycle.
Figure2(Engine operating point on engine fuel):-
i.An efficient Engine fuel map is set up at the service point.
ii.Also, real or active engine torque and engine speed are set on the fuel saving map.
Figure3(Vechile char time ,engine torque ,engine pwr, fuelrate & fuel consumption):-
Figure 3 contains 4 subplots.
i.In the first small phase the Accelerator Pedal system is percentage designed for a driving cycle.
ii.In the second sub-section the Brake Pedal application is a percentage scheduled for driving cycle.
iii. In the lower third phase the Gear command speed is set for a driving cycle.
- In the fourth episode the Vehicle Desired Velocity is organized for a driving cycle.
Figure4(Transmission input & Transmission output , Engine speed , Wheel speed):-
i.In this building engine speed, wheel speed, transmission input speed and transmission output speed are arranged in a single structure to compare between the speeds of the different part.
Figure5(Vechile desired velocity & Vechile actual speed):-
i.In this building Vehicle Desired Velocity and Vehicle Actual Velocity one episode is arranged for comparison.
ii.Between the required speed and actual speed and testing whether the vehicle can reach the desired speed of the drive cycle.
Figure6(motor speed, torque, motor input power):-
Figure7(Pack voltage Current & state of charge):-
Figure8(Electric motror point 7 Electric motor map):-
Case 2 HWFET DRIVE CYCLE:-
Matlab code for project2_intifile:-
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Skill-Lync -> Hybrid Drives Development
% Project 2 - hybrid Vehicle Model
% By - Ullekh Gambhira
% Description:
%% Initialization File
% Initialization file for loading the variables for the Conventional vehicle simulation model
%% Vehicle Parameters
M = 1500; % Vehicle weight [kg]
Cr = 0.015; % Rolling resistance coefficient
Rw = 0.35; % Rolling radius [m]
Cd = 0.33; % Drag coefficient
Af = 2; % Frontal area [m2]
rhoa = 1.225; % Air density [kg/m3]
Vwind = 0; % Wind velocity [kmph]
g = 9.81; % Gravitational acceleration [m/s2]
theta = 0; % Slope [deg]
myu_road_tire = 1; % Coefficient of friction between tire - road interface
%% Powertrain Parameters
FDR = 3.73; % Final Drive Ratio / Diff Ratio
DiffEff = 0.99; % Differential efficiency (assumed independent of operating conditions)
NumGear = 4; % Number of gears in transmission
TransGear = [1:NumGear]; % Transmission Gears
TransRatio = [3.06, 1.62, 1, 0.7]; % Corresponding Transmission ratios
TransEff = 0.90; % Transmission efficiency (assumed independent of operating conditions)
TC_SR = [0, .5, .6, .7, .8, .87, .92, .94, .96, .97, 1]; % Torque Converter Speed Ratio (Matlab default) -> TurbSpd/PumpSpd
TC_TR = [2.232, 1.5462, 1.4058, 1.2746, 1.1528, 1.0732, 1.0192, 1, 1, 1, 1]; % Torque Converter Torque Ratio (Matlab default) -> TurbTrq/PumpTrq
TC_Cf = 1e-4 * [.72558, .66322, .63463, .59042, .51331, .4144, .29287, .22444, .12186, .04386, 0]; % Torque Converter Capacity Factor (Matlab default) -> PumpTrq/PumpSpd^2 [Nm/rpm^2]
load Vehicle_Data/Engine_data_1_9L_Saturn_95kW
load Vehicle_Data/Trans_Shift_map
load Vehicle_Data/EM_Honda_Insight_10kW
load Vehicle_Data/ESS_NiMH6
ESS_init_soc = 0.8;
ESS_soc_max = 0.9;
ESS_soc_min = 0.6;
%% Driver Parameters
Kp = 10; % P gain for driver PI model
Ki = 1; % I gain for driver PI model
Drive_Cycle_Select = 2; % Drive cycle selection
% Drive cycle values in m/s
if Drive_Cycle_Select == 1
load DriveCycles/UDDS;
elseif Drive_Cycle_Select == 2
load DriveCycles/HWFET;
elseif Drive_Cycle_Select == 3
load DriveCycles/FTP;
elseif Drive_Cycle_Select == 4
load DriveCycles/US06;
elseif Drive_Cycle_Select == 5
load DriveCycles/NEDC;
elseif Drive_Cycle_Select == 6
load DriveCycles/WLTP;
end
time_end = cyc_time(end);
vel_end = cyc_vel(end);
Simulink Model:-
Vechile Model:-
Driver:-
HWFET Drive cycle Plot:-
Controller:-
1.Controller chart:-
2.Engine control unit:-
Idle speed controller:-
Plot:-
3.Transmission control unit:-
Shift logic:-
4.Electric motor control unit:-
5.Brake control unit:-
HWFET Drive cycle Plot for controller:-
Power Train:-
Engine:-
HWFET Drive cycle Plot:-
Crank hub:-
Plot:-
Electric motor:-
Plot:-
Transmission:-
HWFET Drive cycle Plot:-
Torque Converter:-
HWFET Drive cycle Plot:-
1.
Diffrential:-
Wheel:-
Vechile dyanamics:-
HWFET Drive cycle Plot:-
1.
2.
Battery:-
SOC:-
Terminal voltage:-
Matlab code for Project2_processingfile:-
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Skill-Lync -> Hybrid Drives Development
% Project 1 - Conventional Vehicle Model
% By - Ullekh Gambhira
% Description:
% The following file is to used with the Initialization file and Simulink
% results for post-processing of the data.
% The file is incomplete, has some examples of how the data is imported
% into a readable format, data analysis and plotting examples.
% Based on the project task, use commands in a similar format as given
% below, to analyse the data and generate required plots.
% You can change variable names if desired
%% Post-Processing File
% File for post-processing the Conventional vehicle simulation model data
%% Renaming variables
Time = out.tout;
Acc_Pdl = out.Acc_Pdl; % Accelerator pedal [%]
Brk_Pdl = out.Brk_Pdl; % Brake pedal [%]
Gear_Cmd = out.Gear_Cmd; % Transmission gear
Trans_In_Spd = out.Trans_In_Spd*30/pi; % Transmission input speed [rpm]
Trans_Out_Spd = out.Trans_Out_Spd*30/pi;% Transmission output speed [rpm]
Eng_Trq = out.Eng_Trq; % Engine brake torque [Nm]
Eng_Spd = out.Eng_Spd*30/pi; % Engine speed [rpm]
Eng_Fuel_Consump = out.FuelConsumption; % Engine fuel consumption [g]
Veh_Dist = out.Vech_Dist/1000; % Distance traveled by vehicle [km]
Veh_Spd = out.Vech_Spd*18/5; % Vehicle speed [kmph]
wheel_speed=out.wheel_speed; % Wheel speed[kmph]
Eng_Fuel_Rate = out.Eng_Fuel_Rate;
EM_Spd = out.EMSpd;
EM_Trq = out.EMTrq;
EM_in_Pwr_w = out.EmPwr;
Pack_Current= out.pack_current;
Term_Volt = out.Term_volt;
SOC = out.soc
%% Data Analysis
Eng_Pwr = Eng_Spd.*pi./30.*Eng_Trq./1000; % Engine brake power [kW]
rho_petrol = 0.7197; % Density of petrol [kg/L]
kmpl = Veh_Dist(end)/(Eng_Fuel_Consump(end)/1000/rho_petrol); % Fuel economy [kmpl]
%% Plotting vehicle characteristics time trace
figure(1)
subplot(3,1,1)
hold on
grid on
plot(Time, Acc_Pdl, 'linewidth', 1, 'Color', 'black');
plot(Time, Brk_Pdl, 'linewidth', 1, 'Color', 'red');
ylabel('Pedal [%]')
xlim([0, Time(end)]);
legend('Accel','Brake');
subplot(3,1,2)
hold on
grid on
plot(Time, Trans_In_Spd, 'linewidth', 1, 'Color', 'black');
plot(Time, Trans_Out_Spd, 'linewidth', 1, 'Color', 'red');
ylabel('Speed [rpm]')
xlim([0, Time(end)]);
ylim([0, 6000]);
legend('Trans Input','Trans Output');
subplot(3,1,3)
hold on
grid on
plot(Time, Gear_Cmd, 'linewidth', 1, 'Color', 'black');
xlim([0, Time(end)]);
xlabel('Time [s]');
ylabel('Gear');
%% Plotting engine operating points on engine fuel map
figure('Name','Engine Operating Points');
hold on
grid on
title('Engine Operating Points','fontsize',12);
p1=plot(Eng_map_spd*30/pi,Eng_max_trq,'linewidth',2,'color','r');
p2=line([Eng_map_spd(end)*30/pi Eng_map_spd(end)*30/pi],[0 Eng_max_trq(end)]);
set(p2,'linewidth',1,'linestyle','--','color','k');
p3=line([Eng_map_spd(1)*30/pi Eng_map_spd(1)*30/pi],[0 Eng_max_trq(1)]);
set(p3,'linewidth',1,'linestyle','--','color','k');
[c,h] = contour(Eng_map_spd'*30/pi,Eng_map_trq,Eng_fuel_map');
clabel(c,h);
xlabel('Engine Speed [rpm]');
ylabel('Engine Torque [Nm]');
title('Engine Fuel Consumption Map [g/s]');
p4 = plot(Eng_Spd,Eng_Trq,'.','color','k');
legend([p1 p4],{'Max Curve','Operating Points'});
axis([Eng_map_spd(1)*30/pi Eng_map_spd(end)*30/pi 0 Eng_map_trq(end)]);
%% Plotting vehicle characteristics time trace engine torque, engine power, fuel rate and fuel consumption
figure(3)
subplot(4,1,1)
plot(Time, Eng_Trq, 'LineWidth',1,'Color','g')
xlabel('Time [s]')
ylabel('Torque [Nm]')
legend ('Torque')
subplot(4,1,2)
plot(Time, Eng_Pwr, 'LineWidth',1,'Color', 'black')
xlabel('Time [s]')
ylabel('Power [kW]')
legend('Engine Power')
subplot(4,1,3)
plot(Time, out.Eng_Fuel_Rate, 'LineWidth',1,'Color', 'red')
xlabel('Time [s]')
ylabel('Fuel Rate [%]')
legend('Fuel Rate')
subplot(4,1,4)
plot(Time, Eng_Fuel_Consump, 'LineWidth',1,'Color','blue')
xlabel('Time [s]')
ylabel('Fuel Consumption [kmpl]')
legend('Fuel Consumption')
%% Plotting vehicle characteristics time trace Engine, Transmission Input, Transmission Output and Wheel
figure(4)
subplot(4,1,1)
hold on
grid on
plot(Time, Eng_Spd, 'LineWidth',1, 'Color','g');
xlabel('Time [s]')
ylabel('Eng_Spd [rpm]')
legend('Engine Speed')
subplot(4,1,2)
plot(Time, Trans_In_Spd, 'LineWidth',1,'Color','black');
xlabel('Time [s]')
ylabel(' Trans_In_Spd [rpm]')
legend(' Trans_Input')
subplot(4,1,3)
plot (Time, Trans_Out_Spd, 'LineWidth', 1, 'Color', 'red');
xlabel('Time [s]')
ylabel(' Trans_Out_Spd [rpm]')
legend(' Trans_Output')
subplot(4,1,4)
plot(Time, wheel_speed, 'LineWidth',1,'Color','blue');
xlabel('Time [s]')
ylabel(' wheel_speed [rpm]')
legend(' wheel_speed')
%% plotting for drive cycle
figure(5)
plot(cyc_time, cyc_vel*(18/5), 'linewidth', 1, 'Color', 'green')
hold on
plot(Time,Veh_Spd, 'linewidth', 1, 'Color', 'red')
xlabel('Time [s]')
ylabel('Vehicle Velocity (Km/h)')
legend('Vehicle Desired Velocity', 'Vehicle Actual Speed')
%% Plotting motor speed, torque, motor input power
figure (6)
subplot (3,1,1)
plot (Time, EM_Trq, 'LineWidth', 1, 'Color', 'g')
xlabel('Time [s]')
ylabel('Torque [Nm]')
legend ('Torque')
subplot (3,1,2)
plot (Time, EM_in_Pwr_w, 'LineWidth', 1, 'Color','black')
xlabel('Time [s]')
ylabel('Power [kW]')
legend ('Engine Power')
subplot (3,1,3)
plot (Time, EM_Spd, 'LineWidth', 1, 'Color', 'red')
xlabel('Time [s]')
ylabel('EM speed')
legend('EM SPEED')
%%Plotting pack voltage, current and SoC
figure (7)
subplot(3,1,1)
plot (Time, Pack_Current, 'LineWidth', 1, 'Color', 'g')
xlabel('Time [s]')
ylabel("CURRENT")
legend ("current")
subplot (3,1,2)
plot (Time, Term_Volt, 'LineWidth', 1, 'Color', 'black')
xlabel("Time [s]")
ylabel('Voltage')
legend('Voltage')
subplot (3,1,3)
plot (Time, SOC, 'LineWidth', 1, 'Color', 'red')
xlabel('Time [s]')
ylabel("SOC")
legend ("SOC")
%% Plotting electric motor points on EM map
figure('Name','Motor Operating Points');
hold on
grid on
title('Motor Operating Points','fontsize',12);
p1=plot(EM_map_spd*30/pi,EM_max_trq,'linewidth',2,'color','r');
p2=line([EM_map_spd(end)*30/pi EM_map_spd(end)*30/pi],[0 EM_max_trq(end)]);
set(p2,'linewidth',1,'linestyle','--','color','k');
p3=line([EM_map_spd(1)*30/pi EM_map_spd(1)*30/pi],[0 EM_max_trq(1)]);
set(p3,'linewidth',1,'linestyle','--','color','k');
[c,h] = contour(EM_map_spd'*30/pi,EM_map_trq,EM_inpwr_map');
clabel(c,h);
xlabel('EM Speed [rpm]');
ylabel('EM Torque [Nm]');
title('EM Input Power ');
p4 = plot(EM_Spd, EM_Trq,'.','color','k');
legend([p1 p3],{'Max Curve', 'Operating Points'});
axis([EM_map_spd(1)*30/pi EM_map_spd(end)*30/pi 0 EM_map_trq(end)]);
Plot for HWFET CYCLE:-
Figuer 1(Vechicle Characterestics time trace accleration and brake pedal,gear command,vechicle desired and actual speed):-
In this fighure contains 3 subplots.
i.The first part of the Accelerator pedal and Brake pedal application is a percentage designed for
driving cycle.
- The accelerator pedal and brake pedal are used according to the driving cycle.
iii. In the second sub-phase the transfer input speed and transfer output speed is set to driving cycle.
Figure2(Engine operating point on engine fuel):-
In this Figure the efficient fuel map of the Engine is set up in the component.
Also, real or active engine torque and engine speed are set on the fuel saving map.
Figure3(Vechile char time ,engine torque ,engine pwr, fuelrate & fuel consumption):-
Figure 3contains 4 subplots.
i.In the first small phase the Accelerator Pedal system is percentage designed for a driving cycle.
ii.In the second sub-section the Brake Pedal application is a percentage scheduled for driving cycle.
iii. In the lower third phase the Gear command speed is set for a driving cycle.
- In the fourth episode the Vehicle Desired Velocity is organized for a driving cycle.
Figure4(Transmission input & Transmission output , Engine speed , Wheel speed):-
i.In this building engine speed, wheel speed, transmission input speed and transmission output speed are arranged in a single structure to compare between the speeds of the different part.
Figure5(Vechile desired velocity & Vechile actual speed):-
i.In this building Vehicle Desired Velocity and Vehicle Actual Velocity one episode is arranged for comparison.
ii.Between the required speed and actual speed and testing whether the vehicle can reach the desired speed of the drive cycle.
Figure6(motor speed, torque, motor input power):-
Figure7(Pack voltage Current & state of charge):-
Figure8(Electric motror point 7 Electric motor map):-
Conclusion:-
i.Therefore, the fuel-based model of hybrid car power consumption has been successful made using MATLAB and simulink.
- Analyze and understand vehicle performance points based on engine speed, torque, transmission
speed, tread space, gear, distance, speed and acceleration.
iii.Post process calculation is done and the required graphs are successfully organized.
- Successfully calculate the fuel-efficient [kmpl] number of a given city cycle [UDDS] and highway cycle [HWFET].