Hi, does anyone have experience setting up autosteer for a crawler platform?
I would like to use it with AgOpenGPS, but I’m not sure if this is even possible.
There will be a rack with drills mounted at the front of the platform, which needs to drill holes every 20 cm. Would this be possible with AgOpenGPS, and what do I specifically need to take into account?
Since this setup will never have a steering angle sensor, and the idea is not for it to pivot around its center axis, but rather to behave like a tractor — moving smoothly left and right.
You could even just steer by sending a PWM ratio according to the steer angle.
The angle information sent by the steer module is for information only, you could just send center all the time.
AOG send a desired steer angle.
This angle will be affected by the look ahead and the wheelbase you set in AOG.
You could just make your machine to send ratio between motors according to the angle, using Proportional, min and max sliders as factors for the calculations.
Hi Pat, if i understand you correctly. if i use the AOG desired steer angle. and do the calculation to match the same angle with the PWM ratio . than iam good?
i just orderd the gps stuff this weekend. to make the [MicroPandaPOE] . and create a steering module based on PWM ratio . to make the turns. hope it willl work
Yes it will.
Maybe @m_elias could add something.
He steers his tracked JD.
He feeds an electric signal (0-5v, 2.5v is center) to the tractor somehow.
The principle would be similar.
I modified the steering controller to use desired steer angle instead of steer angle error. Then I multiplied that by the P gain value so that you can adjust from the AOG UI.
