DAILY - The new QUAD-LEAF front suspension
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- Опубликовано: 2 июн 2014
- The new QUAD-LEAF front suspension is standard on both vans and chassis cabs (up to 3.5 tonnes). It adopts a double wishbone scheme with transversal leaf spring, with new components and a completely new geometry that improves roll behaviour and increases roll stiffness. But the new suspension also achieves excellent results in terms of noise, vibration and loading performance.
Maximum load on axle has been improved to 1,900 kg and a 40 kg payload increase has been achieved on chassis cabs, due to system integration. The new QUAD-LEAF substantially improves manoeuverability and handling at all loads.
We have managed to maintain all advantages of the rear-wheel drive while minimising its inherent oversteer and producing a better anti-roll and anti-dive action. Also steering geometry has been revised, camber has been optimized in all situations, and toe in angle has been modified in order to make steering more progressive. DAILY handling is now much more intuitive and predictable in line with that of a passenger car. Also emergency manoeuvers are now safer in all load conditions. Handling improvement is measured by the increase in lateral acceleration: +25% corresponding to 0.74 g: an impressive performance for a commercial vehicle. Авто/Мото
Good ol' leaf springs.
Henry was right all along!
nice vids sir
i need one like this.
Super
How is the ground clearance??
Why Iveco only product trucks?
lol im gonna use this suspension/steering idea in a game i hope it works lol :D
i love italian engineering.
Theodor Elk if you like visiting the shop, buy Italian
Tolong tampilkan pembuatan body lamborghini secara detail,baik potongsb besi platnya,ukurannya berapa
Leaf in the front breaks after 20.000-30.000km without beeing overloaded. The same problem for 5 cars already.
Weird, I have both this Daily and the older generation, both above 250000km and used often in harsh conditions - heavy loads (sometimes overloaded a bit), bad roads. No suspension problems at all, except the older one had to get new wishbones in the front a few months ago.
Sir can I know the name of software used to create this impressive video
Double wishbone got a new name?
was just about to say that ahaha like wtf
I mean it's double wishbone with a leaf spring replacing the coil spring and sway bar.
Plus marketing shit
A free advice to the engineers at Iveco: Use multi-link front suspension (two tie rods replacing the upper A-arm) to achieve much, much greater performance and variable camber angle and caster angle. This way, you can easily gain more than 20% better road performance during high-speed cornering. Also, the tyres will not wear as much, compared to regular double-wishbone layout.
The engineers probably tested multiple ideas including multilink before coming to this.
Multilink is more expensive and requires more engineering time. It probably wasnt worth it to the engineers.
@@xavierrodriguez2463 , as a person who already designed several suspension setups for various sports cars and buggies (some with regular double wishbone layout; some with multi-link layout), I can tell you that the difference in time needed to design those is a few days. No more. Multi-link suspension only takes about 20 hours more time to figure out the best solution to eliminate the bump steer and to fine tune the Ackermann geometry. That's it. As for the price, despite having two extra ball joints or rod ends, the multi-link suspension sometimes even costs less money, because it consists two simple tie rods (could be cast aluminum, CNC-milled aluminum or steel, basic steel pipe between two threaded end tube inserts, etc) instead of a single and more expensive A-arm. The A-arm is usually heavier than two tie rods, though the latter also come with two extra rod ends or ball joints, so at the end both setups could weight the same.
price and cost are by far the biggest factors, the engineers are undoubtedly aware of the benefits of other setups; but those same setups cost much, much more
@@adamdavis7271 , I work in this area and, trust me, the price difference is negligible compared to all the benefits that come from using a multi-link suspension layout. Those include:
- Better performance while cornering and less understeer.
- Safer, more predictable cornering due to the better grip with the road.
- Far lesser tyre deformation, thread damage and generated heat.
- Shorter use of the brakes and lesser generated heat.
- Lesser use of the ABS and ESP.
- More calm use of the steering system.
- Prolonged life of the springs, shocks, brakes and bushings.
- Improved fuel economy.
Its a truck not a race car
Good👍
still think torque bar + wish is best
This is the worst feature of my 2021 Iveco daily, at 12,000km I hit a average size pot hole, and my wife's curtain air bag deployed and hit her.. It just seems like it has very little travel, and just bottoms out all the time. (Empty van).. Yes, it has a great steering lock, but a lot of vibration shakes in front end.
I agree. Too harsh in the front end. Do you know of anyone who has done an upgrade that works well?
Does the title have anything to do with the video? Where are the leafs?
The damper doesn't have a coil on it, how can you not see the leaf spring that connects to the lower arm transversely
@@xavierrodriguez2463 Oh I see it now, thanks. I guess it's so unusual I didn't know what to look for!
So... where are the leafs?
Connected to the lower control arm
Are you blind?
@@xavierrodriguez2463 Yes
@@xavierrodriguez2463 Isnt that the shock absorber?
@@xtocy96 yes that's the shock, but the spring is flat and it's transversely mounted. It's going across the frame.
@@xavierrodriguez2463 The point is the name is "Quad Leaf" but they talk about everything else but the leaf.
1:05, excuse me but that's a bit too much positive camber (Something just doesn't seems ok)
Corvette suspension :V
Its not that new if you think about it. Its been in rc cars
+Crypton XD um....on what? all of the RC cars I've had run coil springs on top of shocks (thus being a coilover) on all 4 corners....
Its nothing more than a double wishbone suspension
That doesn't answer my question, and yes, it is, double wishbone is UCA/LCA/strut/spring. This uses a leaf pack in place of both the coil spring and the sway bar. Now, this is pretty close to the rear suspension on a corvette as I understand it, but, it's still a reworking of a slightly different concept...
.74 G is more than a mustang
It's like driving farm tractor
Big mitake baying new iveco.
Crafter,sprinter,movano ,transit all driving like normal car.
Iveco meak you tired
i don't like the suspension...very bad...it is from the 70's...not comfy at all!
have you driven it?