用matlab绘制汽车驱动力行驶阻力平衡图

用m a t l a b绘制汽车驱

动力行驶阻力平衡图 Pleasure Group Office【T985AB-B866SYT-B182C-BS682T-STT18】

汽车驱动力-行驶阻力平衡图m=3880;

g=;

nmin=600;nmax=4000;

G=m*g;

ig=[ ];

nT=;

r=;

f=;

CDA=;

i0=;

L=;

a=;

hg=;

If=;Iw1=;Iw2=;

n=600:10:4000;

Tq=+*(n/1000)*(n/1000).^2+*(n/1000).^*(n/1000).^4;

Ft1=Tq*ig(1)*i0*nT/r;

Ft2=Tq*ig(2)*i0*nT/r;

Ft3=Tq*ig(3)*i0*nT/r;

Ft4=Tq*ig(4)*i0*nT/r;

Ft5=Tq*ig(5)*i0*nT/r;

ua1=*r*n/ig(1)/i0;

ua2=*r*n/ig(2)/i0;

ua3=*r*n/ig(3)/i0;

ua4=*r*n/ig(4)/i0;

ua5=*r*n/ig(5)/i0;

ua=0:5:120;

Ff=G*f;

Fw=CDA*ua.^2/;

Fz=Ff+Fw;

plot(ua1,Ft1,ua2,Ft2,ua3,Ft3,ua4,Ft4,ua5,Ft5,ua,Fz);

title('汽车驱动力-行驶阻力平衡图');

xlabel('ua(km*h^-1)');

ylabel('Ft/N');

gtext('Ft1'),gtext('Ft2'),gtext('Ft3'),gtext('Ft4'),gtext('Ft5'),gtext('Ff+F w');