American Truck Simulator

American Truck Simulator

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GegeTS Jul 3, 2019 @ 8:32pm
Tried the floating gears method but get some trouble at low speed and low gears.
Hello,

I'm not an expert to float the gears but tried by starting with a 10 speeds Eaton Fuller gearbox to train myself.

Well after watching many tutorials videos on real truck drive schools, and learning how to match the road speed and rpm rev's I managed in game the process and while I get some grinding sounds too when floating some gears, I came on the good way to do this shifting method.

But what's trouble me is when floating the low gears after a stand still start and moving the truck. I can't get the gear in whatever rpm or road speed. i.e. on a 13 speeds gearbox starting on the 1 gear, if I want to upshift to the 2nd gear, whatever rpm and speed I get, I rarelly get the match between rpm and road speed.

For the gears from 3 to 4, all is running fine I rev up to 1500 rpm, back off my trottle then shift the stick to neutral waiting the rpm falls to 1000 rpm's and engage the fourth gear. that works well for all the others gears thus the upper range 8 L/H.

Could someone expert on floating gears (for the game) explain how to do for low gears between the 1rst and the 3 rd please ? How do you proceed ?

Thanks

Cheers
Gerard
Originally posted by AyMazingATS:
Low side gears are shorter so you may need to shift a little quicker. So 1500 to 1100. Pay more attention to the rpms than speedometer. A 10 and 13 speed will not match up to the same speed.

For me...I'm usually skip shifting on the low side. 1 to 3, then usually to 5(this depends on the weight of the load. If heavier I will go into 4th). But I also don't shift until around 1800rpm and let the rpms fall to 1100.
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AyMazingATS Jul 3, 2019 @ 8:53pm 
Low side gears are shorter so you may need to shift a little quicker. So 1500 to 1100. Pay more attention to the rpms than speedometer. A 10 and 13 speed will not match up to the same speed.

For me...I'm usually skip shifting on the low side. 1 to 3, then usually to 5(this depends on the weight of the load. If heavier I will go into 4th). But I also don't shift until around 1800rpm and let the rpms fall to 1100.
SCRaP Jul 3, 2019 @ 11:12pm 
I DOWN ONEE UP TWO AND THE FOR DOWN NORMMAL THE OPPISIT BUT SOMETIME LIKE THE BOOST U GET BACK AND FORTH THROUGH THE HILLS
SCRaP Jul 3, 2019 @ 11:13pm 
BUT IM FAR FROM A EXPERT
SCRaP Jul 3, 2019 @ 11:13pm 
I FEEL THE TRUCK PERFORMS MUCH BETTER
LarryA Jul 4, 2019 @ 1:29am 
AyMazingATS suggested agree. Do not need to practice on a 10 speed or a 12:5:13. Jump to a 18 speed. 250 RPM splits. The low side on a 12:5:13 the gear splits are closer than the highside. Have you tried progressive shifting on the low side? 1st gear 1,000 RPM 2nd 1,200 RPM on the low side. Generaly help you do not need all the torque at high RPMs the engine can produce. Baby the throttle run it like you have a egg between your foot and throttle do not break the egg. Just move your toes not the foot. Floating gears takes a lot of practice to perfect. Depends on GVW (gross vehicle weight) and grade you may have to toe the clutch a little to release the Torque on a grade. When empty or loaded depending on the GVW and grade skip gears as well.
Fury6 Jul 4, 2019 @ 1:38am 
Yep, in the lower gears you'll need to drop shorter on the RPM, as mentioned above.

The easiest way to figure it out is to wait until you reach your top RPM as usual, then let off the accelerator and just jam the shifter into the downshift gear and look carefully at where it finally engages. That's your RPM gap for that downshift :).
GegeTS Jul 4, 2019 @ 6:17am 
Thank you all for your advices; first one I retain is to skip low gear when upshifting and look at the RPM when gear engage to have the right gap.

I will test that soon and I wish you a happy virtual trucking floating gears.

I will train again and again thus I can get the right spot.

Enjoy.

Cheers
Gerard
GegeTS Jul 4, 2019 @ 6:40am 
Originally posted by LarryA:
AyMazingATS suggested agree. Do not need to practice on a 10 speed or a 12:5:13. Jump to a 18 speed. 250 RPM splits. The low side on a 12:5:13 the gear splits are closer than the highside. Have you tried progressive shifting on the low side? 1st gear 1,000 RPM 2nd 1,200 RPM on the low side. Generaly help you do not need all the torque at high RPMs the engine can produce. Baby the throttle run it like you have a egg between your foot and throttle do not break the egg. Just move your toes not the foot. Floating gears takes a lot of practice to perfect. Depends on GVW (gross vehicle weight) and grade you may have to toe the clutch a little to release the Torque on a grade. When empty or loaded depending on the GVW and grade skip gears as well.

Yes I can manage very well maintaining 1000 or 1200 RPM with the throttle so I will test this low RPM and will try to shift floating low gears. I set in options my dead zone for the throttle pretty close to the center of slider to get a more accurate feel and react with the throttle in game.

But when you say 1000 for the 1 rst gear and 1200 rpm for the 2nd gear, does it means these rpm are to be there after realising the throttle back off when the needle falls or are there the rpm to be raised when pushing down the throttle ? I'm a bit confused between raising the rpm by pushing the throttle down and letting the rpm to fall back before engaging the gear.

Thank you for your advices.

Gerard
GegeTS Jul 4, 2019 @ 6:44am 
Originally posted by Fury6:
Yep, in the lower gears you'll need to drop shorter on the RPM, as mentioned above.

The easiest way to figure it out is to wait until you reach your top RPM as usual, then let off the accelerator and just jam the shifter into the downshift gear and look carefully at where it finally engages. That's your RPM gap for that downshift :).

Thank you again Fury6 as all the advices above are pretty close to the same method to float the low gears.

I will test this soon and come back here if I still get some troubles.
GegeTS Jul 4, 2019 @ 6:57am 
Originally posted by H0STiLLE:
I FEEL THE TRUCK PERFORMS MUCH BETTER
Yes you are indeed right as on real truck its much easier to float gears than in game.
GegeTS Jul 4, 2019 @ 9:32am 
Hello,

Then I come back to share my self experience about floating gears.

My best way to float correctly the gear in game is as following :

i.e. on a 10 speeds gearbox, I start as needed using the clutch and engage the 1rst gear then out off the clutch pedal when the truck come to move and pushing the throttle to revs thus 1400/1500 rpm then soon while maintaining the throttle to get 1500 rpm, I shift my gear stick to neutral position whitout realising the throttle and I back off the throttle and engage the 2nd gear using the stick. I do the same for the others gears. That works pretty well until the top gears.

On other side when maintaining the throttle to revs to 1500 rpm with the stick to the 1rst gear position and backing off the throttle and soon shifting the stick to the 2nd gear doesn't work.

My method works pretty well for me but I can't skip^the low gears because each gear have a dedicated speed road and outside these dedicated speeds road the gears don't engage.

Because starting in the 1rst gear, the max speed road is about 3/4 mph and if I want to skip to 3rd gear my speed road don't match the needed speed road for this 3rd gear which is about (if I remember well 7/8 mph. In 1rst gear I can't reach 7/8 mph whatever rpm I rev.

As explained on trucker drive schools, to shift the gears you have to match three things the revs/road speed and shift timing
Last edited by GegeTS; Jul 4, 2019 @ 9:44am
LarryA Jul 4, 2019 @ 10:44am 
Originally posted by GegeTS:
Originally posted by LarryA:
AyMazingATS suggested agree. Do not need to practice on a 10 speed or a 12:5:13. Jump to a 18 speed. 250 RPM splits. The low side on a 12:5:13 the gear splits are closer than the highside. Have you tried progressive shifting on the low side? 1st gear 1,000 RPM 2nd 1,200 RPM on the low side. Generaly help you do not need all the torque at high RPMs the engine can produce. Baby the throttle run it like you have a egg between your foot and throttle do not break the egg. Just move your toes not the foot. Floating gears takes a lot of practice to perfect. Depends on GVW (gross vehicle weight) and grade you may have to toe the clutch a little to release the Torque on a grade. When empty or loaded depending on the GVW and grade skip gears as well.

Yes I can manage very well maintaining 1000 or 1200 RPM with the throttle so I will test this low RPM and will try to shift floating low gears. I set in options my dead zone for the throttle pretty close to the center of slider to get a more accurate feel and react with the throttle in game.

But when you say 1000 for the 1 rst gear and 1200 rpm for the 2nd gear, does it means these rpm are to be there after realising the throttle back off when the needle falls or are there the rpm to be raised when pushing down the throttle ? I'm a bit confused between raising the rpm by pushing the throttle down and letting the rpm to fall back before engaging the gear.

Thank you for your advices.

Gerard

IMO Best Mod transmission is the 18 Speed by Fury6 for floating gears.

Advantage to progressive shifting you can get the tractor to top speed faster using "Less" Horse Power and Torque. IRL, 5 & 4 = 250 RPM split between each gear. 1693 T.A. Cat max RPM is 2100. Max RPM shift point 1900 RPM, Minimum RPM for 475 H.P under full load. Minimum 1750 RPM. Adjust per engine specifications and transmission, 10 speed, 12:5:13, 18 speed..

You want the engine to run as a stationery engine with a set load on the engine. H.P and Torque.
"Listen" to the engine. Is the engine happy or sad? The engine will tell you. Learn the engine how it sounds and reacts. It will help greatrly on learning to float gears. In Game As Well.

Based on RLI:
This is a basic example of Progresive shifting: It could be advantageous to skip gears advanced techniques. Learn the basics first. Depend on GVW and Grade. In this example GVW 80,000 LBs grade 0% flat.

250 RPM split between each Gear. 5 & 4 or 6 & 4 double over or double under. 2 Transmissions is a set of split boxes.

RPM shift points: 1st gear & 2nd 1000 rpm, 1st and 3rd 1200 RPM, first and 4th, 1300 RPM, 2nd and 2nd 1500, 2nd and 3rd 1800 RPM, 2nd and 4th 1900 RPM. The rest of the remaining gears are shifted at 1900 RPM Max. Down Shift at 1750 RPM full engine load 495 H.P. and Torque if the mengine cannot maintain 1750 RPM. Listen to them engine.Want a happy engine not a sad engine.

Hope this helps. It takes a lot of patience and practice to learn how to float a transmission with out damaging the thru shafts and gears. Never ending process. IRL you feel the gears never hear the gears grind. The shift handel is like a old rocking chair and you feel the gears rock untill the RPM is matched then they fall in.
GegeTS Jul 4, 2019 @ 11:17am 
Originally posted by LarryA:
Originally posted by GegeTS:

Yes I can manage very well maintaining 1000 or 1200 RPM with the throttle so I will test this low RPM and will try to shift floating low gears. I set in options my dead zone for the throttle pretty close to the center of slider to get a more accurate feel and react with the throttle in game.

But when you say 1000 for the 1 rst gear and 1200 rpm for the 2nd gear, does it means these rpm are to be there after realising the throttle back off when the needle falls or are there the rpm to be raised when pushing down the throttle ? I'm a bit confused between raising the rpm by pushing the throttle down and letting the rpm to fall back before engaging the gear.

Thank you for your advices.

Gerard

IMO Best Mod transmission is the 18 Speed by Fury6 for floating gears.

Advantage to progressive shifting you can get the tractor to top speed faster using "Less" Horse Power and Torque. IRL, 5 & 4 = 250 RPM split between each gear. 1693 T.A. Cat max RPM is 2100. Max RPM shift point 1900 RPM, Minimum RPM for 475 H.P under full load. Minimum 1750 RPM. Adjust per engine specifications and transmission, 10 speed, 12:5:13, 18 speed..

You want the engine to run as a stationery engine with a set load on the engine. H.P and Torque.
"Listen" to the engine. Is the engine happy or sad? The engine will tell you. Learn the engine how it sounds and reacts. It will help greatrly on learning to float gears. In Game As Well.

Based on RLI:
This is a basic example of Progresive shifting: It could be advantageous to skip gears advanced techniques. Learn the basics first. Depend on GVW and Grade. In this example GVW 80,000 LBs grade 0% flat.

250 RPM split between each Gear. 5 & 4 or 6 & 4 double over or double under. 2 Transmissions is a set of split boxes.

RPM shift points: 1st gear & 2nd 1000 rpm, 1st and 3rd 1200 RPM, first and 4th, 1300 RPM, 2nd and 2nd 1500, 2nd and 3rd 1800 RPM, 2nd and 4th 1900 RPM. The rest of the remaining gears are shifted at 1900 RPM Max. Down Shift at 1750 RPM full engine load 495 H.P. and Torque if the mengine cannot maintain 1750 RPM. Listen to them engine.Want a happy engine not a sad engine.

Hope this helps. It takes a lot of patience and practice to learn how to float a transmission with out damaging the thru shafts and gears. Never ending process. IRL you feel the gears never hear the gears grind. The shift handel is like a old rocking chair and you feel the gears rock untill the RPM is matched then they fall in.


Ok for that explanation but is there a way to have some math to do to calculate the progessive shifting or to know what rpm to get before shifting ? knowing the ratio of the gear box indeed.
And for my knoledge what means 12:5:13 ratios I have a bit hard to understand what means 12:5 ratio while I know well what is the 12 divided by 5. Is there something related to the teeth in the gearbox or something like that or a ratio of torque under power ?

Thank you to point me if possible on a good explanation with a tutorial video. Images are much easier to understnad than a long text for me.

Sorry for my bad english.

Cheers
gerard
GegeTS Jul 4, 2019 @ 12:33pm 
Again here,

What I learned is a ratio i.e. in game for my gearbox 13 speeds it give a ratio of 12.42-0.73 so by dividing 12.42 divided by 0.73 that give 17.01-1 that what I have understood.
And searching on the web what means these ratio, I learned i.e. for 12.42-0.73 there is the ring teeth inside the gearbox turn 12.42 time while the power wheels on the truck are turning 0.73 time . Or if I take the 17.01-1 ratio, the ring teeth inside the gearbox turn 17.01 time while the power wheel truck turn a complete round
Is this right for my understanding ?

Cheers
Gerard
Last edited by GegeTS; Jul 5, 2019 @ 7:38am
Fury6 Jul 5, 2019 @ 5:04am 
No, that's not it. The ratios given in-game as 12.42-0.73 is just the ratio range from first gear (at 12.42 in this example) and top gear (at 0.73 in this example) The final drive ratio is given separately.

So in other words, your first gear ratio is 12.42 and your top gear ratio is an overdrive at 0.73. To work out the overall ratio you need to use the gear ratio of the *current* gear along with the final drive ratio.
Last edited by Fury6; Jul 5, 2019 @ 5:05am
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Date Posted: Jul 3, 2019 @ 8:32pm
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