用maab绘制汽车的行驶加速度曲线

用matlab 绘制汽车的行驶加速度曲

线

n=600:10:4000;

Tq=+*( n/1000)*(门/1000)人2+*( n/1000)"( n/IOOO).%; m=3880;g=;

nmin=600;nmax=4000;

G=m*g;

ig=[ ];

nT=;r=; f=;CDA=;i0=;

L=;a=;hg=;

If=;Iw1=;Iw2=;

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;

Fw1=CDA*ua142/;

Fw2=CDA*ua242/;

Fw3=CDA*ua3.A2/;

Fw4=CDA*ua4.A2/;

Fw5=CDA*ua5.A2/;

Ff=G*f;

deta1=1+(Iw1+Iw2)/(m*rA2)+(If*ig(1)A2*i0A2*nT)/(m*rA2);

deta2=1+(Iw1+Iw2)/(m*rA2)+(If*ig(2)A2*i0A2*nT)/(m*rA2);

deta3=1+(Iw1+Iw2)/(m*rA2)+(If*ig(3)A2*i0A2*nT)/(m*rA2);

deta4=1+(Iw1+Iw2)/(m*rA2)+(If*ig(4)A2*i0A2*nT)/(m*rA2);

deta5=1+(Iw1+Iw2)/(m*rA2)+(If*ig(5)A2*i0A2*nT)/(m*rA2); a1=(Ft1-Ff-

Fw1)/(deta1*m);

a2=(Ft2-Ff-Fw2)/(deta2*m);

a3=(Ft3-Ff-Fw3)/(deta3*m);

a4=(Ft4-Ff-Fw4)/(deta4*m);

a5=(Ft5-Ff-Fw5)/(deta5*m); plot(ua1,a1,ua2,a2,ua3,a3,ua4,a4,ua5,a5);

title( ' 汽车的行驶加速度曲线' );

xlabel( 'ua/(km*hA-1)' );

ylabel( 'a/ £•• m*sA-2 £?');

gtext( '0 ?' ),gtext( ' 0 o z),gtext( '0 o/),gtext( 0 ?' ),gtext( ' 0 ?');