Lexus - can't pass diagonal test but can pass one front wheel. How is that possible? The one front wheel should pull it off the rollers in the diagonal test. references 2:39 & 4:33
In diagonal test the system cuts the throttle hard and immediately. But when three wheels are spinning then it allows to rev it more and lets the traction control to do its job. Software issue.
Lexus doesn't market their AWD systems that much anyway and it shows. The only exemption is their 4WD SUVs like the GX and LX being based on the the Prado and Land Cruiser (if you really want a Lexus you can take offroad).
In very sorry to see new Lexus performing like that...Knowing that Toyota and Lexus once made one of the best off-road vehicles. Land cruiser and LX...
Lexus is honestly at the bottom of the luxury vehicle list in terms of performance, quality, comfort, and tech (they also look ugly to me 😁)...I only see old people driving them in my country (because they don't care/don't know much about cars). Porsche AWD is probably refined for sporty driving, handling instead of off-road yet it still performs better than Lexus.
I am sure Lexus is on the top of the list as far as quality and comfort are concerned! Suspension quality, cabin isolation is always top notch. AWD is one of the worst in the business though. Even worse is the hybrid version. But in practice it likely works on decent level.
@@npapan Even with winter tires FWD cars can get stuck, especially over icy hills, or in diagonal situations, that's where the AWD saves you. Regardless you are justifying a complete failure and ripoff by Lexus.
not gonna watch it yet, lexus doesn't even move when 2 wheels are stuck or struggles a lot, traction control on or off only makes a difference to wheel speed, slow when is on and smoking when off, braking is almost non existing edit: i now watched it, not exactly on point there, i'm actually surprised with the cayenne on that last test, expected to get right off the rollers with that rear locker enabled
Lexus test inputs does not seem to match Porsche test inputs. Please re-do the Lexus tests with proper acceleration, not just 'idling'. EG: Lexus 'fails' at clearing LF / RR roller combo, but (magically) clears more demanding LR, RR, LF roller combo? Is less traction suddenly more? Simply proper throttle input? Some systems REQUIRE throttle input to engage. (only EVERY Haldex ever).
@@almostbutnotentirelyunreas166 That is one of just a few cars where TC OFF means that traction control is really off, so car is left with open differentials, no help from the brakes. Coming back to diagonal test - watch at 3:57 - that's the attempt where we tried to "fool" the system by hard and rapid press of acceleration pedal - even then it didn't work, there was immediate throttle cut.
@@almostbutnotentirelyunreas166 That's not a traction issue but a software issue. Three wheels spinning - no serious throttle cut. Actually that's quite similat to previous generation of RX, you can find the tests on my channel.
TLDR: The Porsche's AWD system actually works as well as it reasonably should, the Toyota is an overpriced joke in comparison though to be fair, still outperforms the vast majority of these braking TC based AWD systems on the market, showing how low the bar is in the current market. The only cars that have been show to work even better than the Porsche without the use of diff locks are Teslas.
The Lexus AWD behaviour remains the Audi Torsen based Quattro. It is useless on rollers but how does it work in real conditions? It is difficult to find much on the net but I really would like to know to the practical capabilities of the Lexus AWD systems. Anybody here with any experience?
@@4x4.tests.on.rollers that is true. I was just referring to it's behaviour on the rollers. Zero friction on one wheel - no moment transferred to other wheels.
@@myslecinaczej8674 The biggest problem for Lexus RX 200t is diagonal test - systems cuts the throttle and traction control cannot do its job. It doesn't cut so much in lateral test and in three roller test so the problem is in software. When it comes to torsen - _Zero friction on one wheel - no moment transferred to other wheels_ - (I understand that you mean torque) - that's not correct statement. Even the wheel in the air needs several dozen Nm to spin - then other side gets a few times more (TBR value). In open diff both sides would get the same Nm value.
@@4x4.tests.on.rollers you are always patient when responding and this time I made a shortcut trying to describe the similarity but it was not technically accurate and you captured that as always 😃
How is that possible that Lexus RX cannot move forward when 2 wheels lose traction but be able to move when only front wheel have traction?? Is driver not using gas enough? Anyway, Lexus seems only have a great AWD system in their GX and LX SUV or their RWD biased AWD sedan…
I own both Porsche cayenne and Mercedes SUV... Mercedes SUV is day and night compared to Porsche cayenne..The Porsche was very unstable in snow and it got totalled last winter even with all new tires on it..
Lexus - can't pass diagonal test but can pass one front wheel. How is that possible?
The one front wheel should pull it off the rollers in the diagonal test. references 2:39 & 4:33
In diagonal test the system cuts the throttle hard and immediately. But when three wheels are spinning then it allows to rev it more and lets the traction control to do its job. Software issue.
@@4x4.tests.on.rollers Thanks for the response
@@4x4.tests.on.rollers so, in real life a lexus driver has to dig a hole under the rear wheel that has traction to pass the diagonal :)
@@sergeyg436 Yes, that would help! But he must dig only under rear wheel 😉
Really enjoy how Porsche's suspension works !!
Lexus doesn't market their AWD systems that much anyway and it shows. The only exemption is their 4WD SUVs like the GX and LX being based on the the Prado and Land Cruiser (if you really want a Lexus you can take offroad).
Disappointed with the Lexus had higher expectations...... But really impressed with the Porsche!
Napęd w Porsche szokuje 🙂
In very sorry to see new Lexus performing like that...Knowing that Toyota and Lexus once made one of the best off-road vehicles. Land cruiser and LX...
Toyota makes amazing 4x4 and some of the worst AWD systems...the previous gen of Rav4 was ridiculous.
@@jpch8814 It wasn't that bad: th-cam.com/video/oxluunv9Ebg/w-d-xo.html
@@4x4.tests.on.rollers the hybrid Rav4 (not the Prime version) is really bad.
@@nikolayrayanov2895 Previous hybrid generation was really bad. Current one is better but still much worse than petrol version.
Lexus is honestly at the bottom of the luxury vehicle list in terms of performance, quality, comfort, and tech (they also look ugly to me 😁)...I only see old people driving them in my country (because they don't care/don't know much about cars). Porsche AWD is probably refined for sporty driving, handling instead of off-road yet it still performs better than Lexus.
Yeah, Lexus RX have really poor track performance and Off-road performance, I will say the only great Lexus SUV is their GX and LX
I am sure Lexus is on the top of the list as far as quality and comfort are concerned!
Suspension quality, cabin isolation is always top notch.
AWD is one of the worst in the business though. Even worse is the hybrid version.
But in practice it likely works on decent level.
These AWD systems help in snow conditions. With a proper winter tyre you should not have a problem even with FWD…
@@npapan Depending what kind of snow , mud, sand and inclination we need to deal with. I need an AWD car with decent capability. Period.
@@npapan Even with winter tires FWD cars can get stuck, especially over icy hills, or in diagonal situations, that's where the AWD saves you. Regardless you are justifying a complete failure and ripoff by Lexus.
Co najwyżej srednia skuteczność tego napędu w Leksusie😁
Lexus 2:39🤣🤣🤣🤦♂️ I can't. 50k $ Luxury SUV that can't pass a simple diagonal test.
Нашли с чем сравнивать. И так всем ясно что полный привод Лексуса и в частности всей Тойота чисто номинальный. Просто для галочки.
not gonna watch it yet, lexus doesn't even move when 2 wheels are stuck or struggles a lot, traction control on or off only makes a difference to wheel speed, slow when is on and smoking when off, braking is almost non existing
edit:
i now watched it, not exactly on point there, i'm actually surprised with the cayenne on that last test, expected to get right off the rollers with that rear locker enabled
W Porsche widać jak te ogromne hamulce bezlitośnie dźgają.
Как с трех роликов съезжает, в с двух нет
Mógłbym prosić o link do takich rolek?
Wykonane samodzielnie.
@@4x4.tests.on.rollers A to ładnie :D
Lexus test inputs does not seem to match Porsche test inputs. Please re-do the Lexus tests with proper acceleration, not just 'idling'.
EG: Lexus 'fails' at clearing LF / RR roller combo, but (magically) clears more demanding LR, RR, LF roller combo? Is less traction suddenly more? Simply proper throttle input?
Some systems REQUIRE throttle input to engage. (only EVERY Haldex ever).
There's no magic. SYSTEM CUTS THE THROTTLE hard in diagonal test. It is not possible to rev it more.
@@4x4.tests.on.rollers In that case: Terrible Lexus, even with TC OFF???
@@almostbutnotentirelyunreas166 That is one of just a few cars where TC OFF means that traction control is really off, so car is left with open differentials, no help from the brakes. Coming back to diagonal test - watch at 3:57 - that's the attempt where we tried to "fool" the system by hard and rapid press of acceleration pedal - even then it didn't work, there was immediate throttle cut.
@@4x4.tests.on.rollers
OK, so how does the Lexus clear the 'LF wheel only traction' hurdle?
One wheel provides more traction than 2? How?
@@almostbutnotentirelyunreas166 That's not a traction issue but a software issue. Three wheels spinning - no serious throttle cut. Actually that's quite similat to previous generation of RX, you can find the tests on my channel.
TLDR: The Porsche's AWD system actually works as well as it reasonably should, the Toyota is an overpriced joke in comparison though to be fair, still outperforms the vast majority of these braking TC based AWD systems on the market, showing how low the bar is in the current market. The only cars that have been show to work even better than the Porsche without the use of diff locks are Teslas.
The Lexus AWD behaviour remains the Audi Torsen based Quattro. It is useless on rollers but how does it work in real conditions?
It is difficult to find much on the net but I really would like to know to the practical capabilities of the Lexus AWD systems.
Anybody here with any experience?
AWD system of Lexus is very different from torsen based quattro. It is similar to haldex systems.
@@4x4.tests.on.rollers that is true. I was just referring to it's behaviour on the rollers. Zero friction on one wheel - no moment transferred to other wheels.
@@myslecinaczej8674 The biggest problem for Lexus RX 200t is diagonal test - systems cuts the throttle and traction control cannot do its job. It doesn't cut so much in lateral test and in three roller test so the problem is in software. When it comes to torsen - _Zero friction on one wheel - no moment transferred to other wheels_ - (I understand that you mean torque) - that's not correct statement. Even the wheel in the air needs several dozen Nm to spin - then other side gets a few times more (TBR value). In open diff both sides would get the same Nm value.
@@4x4.tests.on.rollers you are always patient when responding and this time I made a shortcut trying to describe the similarity but it was not technically accurate and you captured that as always 😃
@@myslecinaczej8674 Good point, I wasn't aware of that. Is that annoying?
САМЫЙ КРУТОЙ ПРИВОД ЭТО У ФАШИСТОВ👍
New İnsignia Grandsport please
How is that possible that Lexus RX cannot move forward when 2 wheels lose traction but be able to move when only front wheel have traction?? Is driver not using gas enough?
Anyway, Lexus seems only have a great AWD system in their GX and LX SUV or their RWD biased AWD sedan…
During diagonal test, system is cutting the throttle. In other tests it allows for more rpm and lets the traction control system do its job.
@@4x4.tests.on.rollers Oh I get it, thanks!
Can we see the dash as well to have batter idea
We were filming a dash a few times but usually we don't do that.
porsche does well.
Ну вы нашли что с чем сравнивать...
I own both Porsche cayenne and Mercedes SUV... Mercedes SUV is day and night compared to Porsche cayenne..The Porsche was very unstable in snow and it got totalled last winter even with all new tires on it..
Porsche is rwd biased and maybe that's a reason... Its awd system is probably performance tuned.
Lexus IS useless!!!!
damn lexus sucked so bad
No surprises, Toyota AWD system of that generation is useless