1档的驱动力
= 26043 26722 27402 27202 27002 26523 26083 25005 23966
2档的驱动力:
=15355 15756 16156 16038 15921 15638 15379 14743 14131
3档驱动力
=9242.1 9483.1 9724.1 9653.2 9582.3 9412.2 9256.3 8873.5 8505.0
4档驱动力:
=5486.6 5629.6 5772.7 5730.6 5688.5 5587.6 5495.0 5267.8 5049.0
5档驱动力:
=3562.7 3655.6 3748.5 3721.2 3693.9 3628.3 3568.2 34206 3278.6
1档加速度:
0.7854 0.8084 0.8314 0.8246 0.8177 0.8014
0.7864 0.7497 0.7143
2档加速度:
0.7569 0.7810 0.8050 0.7974 0.7899 0.7723
0.7561 0.7169 0.6791
3档加速度:
0.5351 0.5543 0.5733 0.5658 0.5580 0.5417 0.5264 0.4917 0.4580
4挡加速度:
0.2405 0.2508 0.2606 0.2521 0.2430 0.2278 0.2129 0.1845 0.1563
5挡加速度:
0.0448 0.0456 0.0451 0.0313 0.0161 -0.0042 -0.0253 -0.0564 -0.0884
速度:
1档速度:
4.8135 5.6157 6.4180 7.2202 8.0225 8.8247 9.6270 10.4292 11.2315
2档速度:
8.1640 9.5246 10.8853 12.2459 13.6066 14.9673 16.3279 17.6886 19.0492
3档速度:
14.3619 16.7556 19.1492 21.5429 23.9365 26.3302 28.7238 31.1175 33.5111
4档速度:
22.8485 26.6566 30.4646 34.2727 38.0808 41.8889 45.6970 49.5051 53.3131
5档速度:
35.1867 41.0511 46.9156 52.7800 58.6444 64.5089 70.3733 76.2378 82.1022
功率:
1档功率:
40.9647 49.0394 57.4710 64.1868 70.7914 76.4921 82.0635 85.2249 87.9622
2档功率:
40.9664 49.0431 57.4733 64.1806 70.7924 76.4905 82.0642 85.2235 87.9645
3档功率:
43.3771 51.9254 60.8494 67.9616 74.9533 80.9879 86.8881 90.2365 93.1393
4档功率:
40.9688 49.0422 57.4740 64.1888 70.7898 76.4899 82.0679 85.2304 87.9592
5档功率:
40.9702 49.0397 57.4649 64.1867 70.7882 76.4880 82.0531 85.2318 87.9562
所以最大车速为64Km/h.
最大爬坡角度:a=15.4度
功率平衡图:
机械效率都采用0.85,目的方便计算,故其阻力功率曲线是连续的。
P5
P4
P3
P2
P1
所以最大车速为60.7Km/h.
各个档位驱动力:
clear r ig i0 m T f;
r=0.49;
ig=7.31;
i0=6.3;
m=0.85;
T=【】;
f=(T*ig*i0*m)/r;
rsult=f
plot(T,rsult,':')
各个档位的速度Ua和各档位加速度a:
clear Ft Ff Fw ig i0 L Ttq K y m f G Ua n i0 ;
ig=4.31;
m=9300;
r=0.49;
K=【】;
i0=6.3;
f=0.031;
n=[1200 1400 1600 1800 2000 2200 2400 2600 2800];
Ft=[ ];
G=93000;
Ua=(0.377*r*n)/(ig*i0);
Ff=G*f;
Fw=(4/21.15)*((Ua).^2);
y=(Ft-(Ff+Fw))/(K*m);
w=Ua
result=y
各档位功率Pe:
clear G f ig k i0 P1 P2 P3 m r a L;
clear Ua Pe;
G=93000;
f=0.031;
ig=【】;
k=【】;
i0=6.3;
m=9300;
r=0.49;
L=【】;
a=【】;
n=[1200 1400 1600 1800 2000 2200 2400 2600 2800];
Ua=(0.377*r*n)/(ig*i0)
P1=(G*f*(Ua))/3600;
P2=(4/76140)*((Ua).^3);
P3=((k*m*(Ua))/3600).*a;
Pe=(P1+P2+P3)/L
p=polyfit(Ua,Pe,3)
fnplt(csaps(Ua,Pe),'red')
驱动力与速度关系曲线:
clear;
x1=[4.8135 5.6157 6.4180 7.2202 8.0225 8.8247 9.6270 10.4292 11.2315 ];
y1=[26043 26722 27402 27202 27002 26523 26083 25005 23966 ];
p=polyfit(x1,y1,2)
x2=[ 8.1640 9.5246 10.8853 12.2459 13.6066 14.9673 16.3279 17.6886 19.0492 ];
y2=[15355 15756 16156 16038 15921 15638 15379 14743 14131];
p=polyfit(x2,y2,2)
x3=[14.3619 16.7556 19.1492 21.5429 23.9365 26.3302 28.7238 31.1175 33.5111];
y3=[9242.1 9483.1 9724.1 9653.2 9582.3 9412.2 9256.3 8873.5 8505.0];
p=polyfit(x3,y3,2)
x4=[22.8485 26.6566 30.4646 34.2727 38.0808 41.8889 45.6970 49.5051 53.3131];
y4=[5486.6 5629.6 5772.7 5730.6 5688.5 5587.6 5495.0 5267.8 5049.0];
p=polyfit(x4,y4,2)
x5=[35.1867 41.0511 46.9156 52.7800 58.6444 64.5089 70.3733 76.2378 82.1022];
y5=[3562.7 3655.6 3748.5 3721.2 3693.9 3628.3 3568.2 3420.6 3278.6];
p=polyfit(x5,y5,2)
hold on
fnplt(csaps(x1,y1),'red')
hold on
fnplt(csaps(x2,y2),'red')
hold on
fnplt(csaps(x3,y3),'red')
hold on
fnplt(csaps(x4,y4),'red')
hold on
fnplt(csaps(x5,y5),'red')
阻力曲线:
clear F Ff Fw Ua G f r n ig i0;
f=0.031;
G=93000;
r=0.49;
ig=【】;
i0=6.3;
n=[1200 1400 1600 1800 2000 2200 2400 2600 2800];
Ua=(0.377*r*n)/(ig*i0)
Fw=(4/21.15)*((Ua).^2);
Ff=G*f;
F=(Ff+Fw)
hold on
fnplt(csaps(Ua,F),'red')
驱动力与阻力最大速度