Auto throttle..?

[AKfish]

Besides what goes on in my head when my youngest says he'd like a pickup to go off to college with....

What do folk's with this option on their tractor's think about it after using it awhile?

And when/how do you use it the most and how does it generally work?

Thanks.

AKfish

 

[radman1]

I find it annoying and don't use it. Engines revs up and down with pushing or releasing the hydro pedal. Most times, I want the engine rpm more constant. I could see it being useful for driving down the road, pulling a light trailer at higher speeds etc. I think the only reason JD added it, is because Kubota has a similar function.

 

[DanD78]

I think a foot throttle is great on a gear drive tractor. The old 20 series Deere had one. (under the truning brakes) It would probably be handy on a hydro tractor where the hydro is controlled by hand like on the older garden tractors. I think it would drive me nuts having a foot hydro and a foot throttle.

This could be turned in to the thread about where the turning brakes are located. you could put the foot throttle, hydro control and turning brakes all on the same side.

Dan

 

[Glen Watkins]

I remember an older Kabota my father had and that was a gear tractor with a foot throttle and hand throttle and dual brakes but to use the turning brakes you had to run the throttle by hand. Another stupid design never liked it!

 

[Duffster]

I remember an older Kabota my father had and that was a gear tractor with a foot throttle and hand throttle and dual brakes but to use the turning brakes you had to run the throttle by hand. Another stupid design never liked it!

What's stupid about it?

Perfect setup IMO.

 

[chevyman29]

i havent used it on mine enough yet to say. but so far im thinking its gonna be to herky jerky for me . it seems like it should be smoother . maybe theres a adjustment for it i dont no .

 

[radman1]

I remember an older Kabota my father had and that was a gear tractor with a foot throttle and hand throttle and dual brakes but to use the turning brakes you had to run the throttle by hand. Another stupid design never liked it!

This is still how most tractors that have a foot throttle are designed - both old and new. Many times the brakes don't need to be used often, and the foot throttle allows an easy method to change rpm. Personally, I have a few tractors with foot throttle, and I don't use it much unless just wanting to move a little faster over a relatively short distance.

 

[jenkinsph]

AKfish,

Picture running your 110 down the driveway and approach the highway intersection, as you let off the forward pedal you are unloading the engine and the rpms rise until you reach back and push the throttle down.

Well the combination of auto throttle eliminates this type issue. When selected it will raise the engine speed as you push the forward or reverse pedal. so if you remove your foot from the pedals it returns to idle or whatever you have selected with the hand throttle. It has a natural feel to it in my opinion. Combined with the other upgraded cruise functions it is well worth the $99.

 

[megotatractor]

Couldn't the "auto throttle" be intended to save fuel?

 

[jenkinsph]

Couldn't the "auto throttle" be intended to save fuel?

It can save fuel to a degree but I suspect the idea is to be able to apply power smoothly in conjunction with the infinite speed hydrostat.

 

[AKfish]

Appreciate the information and the responses.

If I understand correctly.. it appears the usefulness of the auto throttle option is when you're moving the tractor some distance - point A to B - and not in a "work" situation.

You would NOT want to use the feature with a ground engagement attachment or pto implement - rototiller, mower, etc.

How about a ground-driven rake or tedder?

Thanks.

AKfish

 

[jenkinsph]

Appreciate the information and the responses.

If I understand correctly.. it appears the usefulness of the auto throttle option is when you're moving the tractor some distance - point A to B - and not in a "work" situation.

You would NOT want to use the feature with a ground engagement attachment or pto implement - rototiller, mower, etc.

How about a ground-driven rake or tedder?

Thanks.

AKfish

Not exactly, if you are blading for instance the power needed will vary with the amount of cut and or the amount of dirt you are pushing. As I am sure you are aware this pushing can be vary similar to the tractor to going uphill, so if the tractor can pickup rpms as you push down the pedal then you have in effect a wide range of speed and power available to you in real time.
Simply put you use your right foot to control the motion and force applied to work the tractor. This frees up your eyes and right hand to adjust and watch the implement. No need to adjust the throttle. Works great for loader work and operations that require a pause in movement, allowing the engine to idle in between.

For pto use where a steady engine speed is desirable then flip the switch off and use the maual throttle. The cruise control allows you to set the best ground speed for mowing, tilling and disking with repeatability. The cruise is adjustable in 1/10 of a mph increments.

 

[AKfish]

Not exactly, if you are blading for instance the power needed will vary with the amount of cut and or the amount of dirt you are pushing. As I am sure you are aware this pushing can be vary similar to the tractor to going uphill, so if the tractor can pickup rpms as you push down the pedal then you have in effect a wide range of speed and power available to you in real time.
Simply put you use your right foot to control the motion and force applied to work the tractor. This frees up your eyes and right hand to adjust and watch the implement. No need to adjust the throttle. Works great for loader work and operations that require a pause in movement, allowing the engine to idle in between.

For pto use where a steady engine speed is desirable then flip the switch off and use the maual throttle. The cruise control allows you to set the best ground speed for mowing, tilling and disking with repeatability. The cruise is adjustable in 1/10 of a mph increments.

Whoa... that sounds slicker than "owl sh..."!

I do alot of loader work and being able to control the power/traction equation with the eHydro pedal sounds like a much more efficient way to get the work done - i.e. easier to modulate the power to the wheels such that the bucket fills up with less wheel spinning.

AKfish

 

[MessickFarmEqu]

its funny you guys don't seem to care for it. We've been hearing rave reviews of it on the Kubota L40's. I wonder if it goes not work quite the same?

 

[radman1]

its funny you guys don't seem to care for it. We've been hearing rave reviews of it on the Kubota L40's. I wonder if it goes not work quite the same?

For me, if it the motor revs up and down when the HST pedal is pushed forward/backwards, then it is not my cup of tea. Say, I was doing loader work. Push the HST pedal forward to move, the engine revs up, drive into pile, release HST pedal, engine rpm drops, raise FEL, hit reverse hst pedal, rpm rises again, back up, release hst pedal to stop, rpm drops, push hst pedal for forward, rpm increases, move to dump trailer, release hst pedal to stop, rpm falls, dump FEL bucket, push hst to go backwards, rpm go up...... For me it is maddening to have the rpms changing all the time. Also many tasks don't require full rpm, with auto throttle, the rpms go up to near pto speed. I often don't need or want the tractor running that fast.

Even using a box blade or rear blade, I frequently am going backwards and forwards. I don't need or want the constant up and down rpm changes. Depending on application, I can argue the auto throttle has worsre fuel consumption because it uses higher rpms than needed.

I do have ag tractors that will auto shift up and down based on engine speed. I can electronically set the low and max engine speed and the tractor will shift accordindly to optimize speed with performance. I can also set the max up/down shift range. This does have some applications. The auto throttle and the kubota equivalent for me is a concept that was easy to add to the ECM and gives a "fluffy but not real usefull add on".
My ag tractors do have a road/trailer setting that I do find useful. Say I am going down the road at 25 mph with throttle fully open and come to a stop sign or turn. As I pull back the throttle the tractor will automatically down shift multiple times, but it won't allow over revving the engine. I make the turn, throttle back up and the tractor will make the shifts back up to high gear automatically. I can do this on my power shift tractors. The IVTs and CVTs can do this seamlessly.

 

[groundcover]

Not sure about the Green but I love it on my Orange 5240 . Almost always leave it on , great for loader & forks, I'll switch it off for PTO uses like mower and snowblower.

 

[jenkinsph]

its funny you guys don't seem to care for it. We've been hearing rave reviews of it on the Kubota L40's. I wonder if it goes not work quite the same?

You should be a politician, you have the qualifications for it.

 

[Baucom]

This sums up my feelings about the auto throttle on Dad's L4740. He nor I use it except for high-speed transport.

For me, if it the motor revs up and down when the HST pedal is pushed forward/backwards, then it is not my cup of tea. Say, I was doing loader work. Push the HST pedal forward to move, the engine revs up, drive into pile, release HST pedal, engine rpm drops, raise FEL, hit reverse hst pedal, rpm rises again, back up, release hst pedal to stop, rpm drops, push hst pedal for forward, rpm increases, move to dump trailer, release hst pedal to stop, rpm falls, dump FEL bucket, push hst to go backwards, rpm go up...... For me it is maddening to have the rpms changing all the time. Also many tasks don't require full rpm, with auto throttle, the rpms go up to near pto speed. I often don't need or want the tractor running that fast.

 

[AKfish]

Also many tasks don't require full rpm, with auto throttle, the rpms go up to near pto speed. I often don't need or want the tractor running that fast.

Ok, So what you're saying is the auto throttle is not proportional to the amount/distance of pressure on the eHydro pedal?

The rpm's ramp up to near PTO rpm's irregardless of what you're doing with the pedals - either in forward or reverse?

That would be a "concern" for me..

Nearly everything I do with the 110TLB is around 1,750rpms. The few times I've run the tractor at PTO rpm's (~2,600) the tractor is "screaming"! And breaking traction with all 4 tires is a momentary blink to achieve!

Unless there was a method to keep the rpm's to a lower "peak" during the run-up, I might be inclined to leave it off as well.

AKfish

 

[jenkinsph]

AKfish,

No the throttle advances proportionallly with how far you press the pedal. It is intuitive and similar to pressing the pedal on a car or pickup with an automatic transmission with the exception that you don't shift through the various gears. So much smoother and controlled, you need to try it out I guess.

I can understand Radman's point that if reving the motor up and down bothers him then this isn't a feature for him. As I am driving my heavy trucks the engine varies rpms frequently so I guess I am used to it.