助力特性曲线三维图

这是汽车助力转向的助力特性曲线三维图，是转向助力控制策略的map图 (This is a three-dimensional map of the power assist curve of the car power steering, which is a map of the steering assist control strategy.)

p=0:5:150;
t=-13:0.5:13;
[uTsw]=meshgrid（pt）;
Tw=（exp（-0.0281*u）.*（0.2262*Tsw.^2-0.3810*Tsw+0.1714））.*（Tsw>=1&Tsw<=7）+（exp（-0.0281*u）.*（0.2262*7.^2-0.3810*7+0.1714））.*（Tsw>7&Tsw<=13）+（-1）*（exp（-0.0281*u）.*（0.2262*Tsw.^2+0.3810*Tsw+0.1714））.*（Tsw<=-1&Tsw>=-7）+（-1）*（exp（-0.0281*u）.*（0.2262*7.^2+0.3810*（-7）+0.1714））.*（Tsw<-7&Tsw>=-13）+0.*（Tsw<=1&Tsw>=-1）;
surf（TswuTw）;
ylabel（‘V （Km/h）‘）;
xlabel（‘Tsw N/m‘）;
zlabel（‘Tw N/m‘）;
axis（[-15 15 0 150 -10 10]）;
grid on;

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     文件         476  2018-08-21 14:08  niujutexingsanweitu.m
     文件       69155  2018-11-29 21:29  untitled.fig