计算燃油消耗.m

计算汽车的动力性、经济性和制动性,涉及最高车速、加速时间、最大爬坡度、百公里油耗、制动距离

clear;
clc;
G=3880*9.8;C_DA=2.77;f=0.013;
i_g=[5.56,2.769,1.644,1.00,0.793];
i_0=5.83;r=0.367;
elta_t=0.85;
n_min=600 ; n_max=4000;
n=n_min:0.1:n_max;
T=size(n);
u=ones(5,T(2));F_t=ones(size(u));
[u(1,:),F_t(1,:)]=drive(1);
[u(2,:),F_t(2,:)]=drive(2);
[u(3,:),F_t(3,:)]=drive(3);
[u(4,:),F_t(4,:)]=drive(4);
[u(5,:),F_t(5,:)]=drive(5);
u0=0:0.1:max(u(5,:));
F_f=f*G;
F_w=C_DA*power(u0,2)/21.15;
F_fw=F_f+F_w;
for i=1:5
    p_t(i,:)=F_t(i,:).*u(i,:)/3600;
end
p_fw=F_fw.*u0/3600/elta_t;
plot(u(1,:),p_t(1,:),u(2,:),p_t(2,:),u(3,:),p_t(3,:),u(4,:),p_t(4,:),u(5,:),p_t(5,:),u0,p_fw)
%axis([0 150 0 15000]);


u4=r*2*pi*3.6*n/i_g(4)/i_0/60;
F_w4=C_DA*power(u4,2)/21.15;
F_fw4=F_f+F_w4;
p_fw4=F_fw4.*u4/3600;
b4=gas(n,p_fw4);
Q4=b4.*p_fw4./u4/7.1;

u5=r*2*pi*3.6*n/i_g(5)/i_0/60;
F_w5=C_DA*power(u5,2)/21.15;
F_fw5=F_f+F_w5;
p_fw5=F_fw5.*u5/3600;
b5=gas(n,p_fw5);
Q5=b5.*p_fw5./u5/7.1;
plot(u4,Q4,u5,Q5)