Settings for cnh valve system

CNH Machines with analog hydraulic valves Settings Had the same Problem. Finding good Settings wasnt easy.

Ok thanks I will try your settings and see how it goes. What does the roll filter setting do? It just seems to be trying to follow the antenna too much as it is swinging from left to right.

Try also set antenna height to 0. And how does you cmps14 reacts? Is it fast or slow?

If it is set to zero would that effect its position working across slopes? The cmps 14 seems to be working quite fast

I am also trying to use the Reichhardt valve but the tractor still wiggling around 10 cm error. Has anyone been controlling the proportional valve successfully?

I did. Look at my Post.

In your settings for 5.5 you’ve said min is 2 did you mean 20? 2 seems very low if I set mine at 2 it won’t move to smaller angles.

No, i mean two because it’s a hydraulic valve and therefore it can open with extremely low PWM Values. Try it and if it doesn’t works for you set it higher. But if your Min is too high it will wiggle around the line because it can never steer less enough to correct the really small errors.

Ok so I tried your settings today whilst spreading fertiliser. It is more stable but doesn’t really hold the line very well and can end up 10/15cms offline and take a long time to get back. Is there something I am missing to filter out the roll? I can get it to hold the line very well but the problem seems to be the line moves every time I go over a bump?

If you set more filter on the roll, this issue will be less. Untill you get the teensy 4.1 and combine imu and GPS in the panda sentence (see thread on that subject elsewhere here.) Then I would set antenna hight to zero meter. At least for a start until you get the autosteer working. Later experiment with roll.

Ok I will set height to zero and see how that goes I have some drilling to do. I suppose If I moved the antenna down lower to the nose of the tractor somewhere might help as well. How do I get teensy or what is it?

There are other threads about teensy, but wait some time as system is not ready yet.
I did this year seeding with 0 m antenna hight, and imu GPS fusion at around 50 percent.

On the steer ready cnh t6 175 I know (running AOG ver 4.3) the WAS could not be set completely at zero when driving straight, so we ended up with + 10 cm sideshift of the antenna. No sideshift of machine . This way pass to pass of seeder are perfect, but on screen you see overlap one way and gap the other. Lightbar show konstantly around 10 cm fault in red, instead of around 0 fault like my properly WAS zeroed hurlimann, with hydraulic autosteer.
Also be aware of sidedrag from a seeder in the 3 point hitch. This would look like a incorrect set WAS

From memory!
Settings for t6 175
Prop 135
Min 43
Max 175
Low min 43

Thanks for your help! I will keep adjusting. Is there any way to improve the headland turns? Mine seems to turn late so you end up much closer to the boundary than expected then it also turns back in late which is a bit annoying

Yes in u turn settings you set both the shape of u turn and distance from boarder

I was driving yesterday in ploughed land, and experienced the same thing… At my first test on even ground it wasn’t working too bad. But i still have to adjust my Settings. And your right, the Valve probably doesn’t open with 2pwm. Maybe I’m going to disconnect my steering cylinder and test exactly at what PWM value the Valve opens.

I have got mine working quite well now I moved my antenna to the nose of the bonnet and that has made a big improvement. I got a good few hours power harrowing with it yesterday so got the settings fine tuned a bit so it stays within around 5cms of the line now on rough ground and will be stay nearly perfect on the level. I can’t remember my settings but I will post them next time I get a look.

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I noticed when I watched the steer chart my min settings where to low so it was lagging behind the set point.

Settings are;
P 100
Max 100
Low 60
Min 48
Pure pursuit
Look ahead 2.5
Speed gain 2.4
Side hill 0.04 may need to be more haven’t tested on a slope
Integral 7

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Played around with mine more, pretty similar to yours. Wrote them in my post.