Essentials of Mechatronics  ISBN: 0-471-72341-X- ©John Billingsley 2006 - published John Wiley & Sons, Inc

13/2/2.htm  Nonlinear steering

The first simulation shows a tractor with a lited hydraulic steering slew rate.
The steering is based on linear control.
For small disturbances all is well, but when you select 0.3m you will see that it is in serious trouble.

Run Steersim.bas or Steersim.htm


When the control algorithm contains constraints on the demanded angle and steering angle, the response is good even from a disturbance of 1m.

Run Steerlim.bas or Steerlim.htm

Be sure to inspect the code and make some modifications.