我编制了一个LQR控制的SIMULINK程序。采用变步长积分运行没有问题,但采用定步长积分(fixstep)时运行总是出错跳出。
提示信息
Derivative input 456 of 'lqr_semiactive_tj_three/output as x' at time 0.485 is Inf or NaN. Stopping simulation. There may be a singularity in the solution. If not, try reducing the step size (either by reducing the fixed step size or by tightening the error tolerances).