汽车工况电量计算-转速扭矩图

1、内容简介

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2、内容说明

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3、仿真分析

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flag_01=find(u1<0.001);flag_02=find(u2<0.001);flag_03=find(u3<0.001);flag_04=find(u4<0.001);
u1(flag_01)=0;u2(flag_02)=0;u3(flag_03)=0;u4(flag_04)=0;

M=5500;g=9.8;r=0.508;A=6;Cd=0.33;f=0.015;etat=0.95;delta=1.1;
um=60;alpha=atan(0.2);ua=30;nmax=10000;

n1=i1*u1/(r*0.377);
F1=delta*M*a1+M*g*f+Cd*A*u1.^2/21.15;
F1(flag_01)=0;

T1=F1*r/i1;
T1(T1<0)=0;

n2=i2*u2/(r*0.377);
F2=delta*M*a2+M*g*f+Cd*A*u2.^2/21.15;
F2(flag_02)=0;

T2=F2*r/i2;
T2(T2<0)=0;

n3=i1*u3/(r*0.377);
F3=delta*M*a3+M*g*f+Cd*A*u3.^2/21.15;
F3(flag_03)=0;

T3=F3*r/i1;
T3(T3<0)=0;

n4=i2*u4/(r*0.377);
F4=delta*M*a4+M*g*f+Cd*A*u4.^2/21.15;
F4(flag_04)=0;

T4=F4*r/i2;
T4(T4<0)=0;

figure(1)
plot(t1,n1,t2,n2,t3,n3,t4,n4);
xlabel('t/(s))');ylabel('Speed/(rpm)');
figure(2);
plot(t1,T1,t2,T2,t3,T3,t4,T4);
xlabel('t/(s))');ylabel('Torque/(Nm)');
figure(3)
plot(n1,T1,n2,T2,n3,T3,n4,T4);
xlabel('Speed/(rpm)');ylabel('Torque/(Nm)');

 

 

plot(speed_eff7,torque_eff7);
hold on
plot([8000,8000],[0,259]);
hold on
text(3500,162,'0.95');text(5538,174,'0.95');
text(2820,150,'0.94');text(6388,162,'0.94');
text(2854,174,'0.93');text(7067,168,'0.93');
text(2820,213,'0.92');text(8495,162,'0.92');
text(2922,277,'0.90');text(8529,213,'0.90');
text(2446,331,'0.86');text(10534,195,'0.86');
text(2106,391,'0.82');text(11655,42,'0.82');
text(1801,409,'0.78');text(12777,36,'0.78');
text(1495,439,'0.75');

xlabel('电机转速(rpm)');
ylabel('电机扭矩(Nm)');

 

4、参考论文

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