| ekaxel |
| We all know that the AWD in the MO is pretty "basic" (for lack of a better term). How much would you be willing to pay (above MOs current pricing level) for a more capable AWD. My examples would be the MDX/Pilot electronic, or the Audi Quattro mechanical(Torsen differentials). |
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| Empz |
Honestly ... the Nissan ATTESSA-ES system is one of the best AWD systems out there.
They have it in the Pathfinder,G35x, and FX ... I dun really understand why they didn't put it in the Murano.
I really wish they did! |
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| ekaxel |
| It doesn't work with the MO FWD transverse engine platform. |
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| Eric L. |
The Murano's AWD is not all that different from the one used on the Pilot and MDX. Both use an electronic clutch pack on the rear differential for activation of the rear drive wheels.
I would like the Murano's AWD to have a fixed distribution that isn't 100% FWD in normal conditions. This is not an issue during good weather, but in the snow, the AWD reacts much too slow during the turn. |
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| teonek |
| In european murano distribution is 91% front and 9% rear on normal driving |
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| Eric L. |
quote:
Originally posted by teonek
In european murano distribution is 91% front and 9% rear on normal driving
Do you have a reference for this? I would like to read about it. |
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| dmako |
| I think the MO's AWD is just fine for it's intended use. If it were a true off-road vehicle I would expect more like elec./air lockers, etc. |
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| teonek |
| Yes i have some revievs of european Murano but all in polish language. |
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| teonek |
| German auto magazine |
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| GripperDon |
| I love it, listed under drawbacks is "Rather Flashy Looking":eek: |
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| ekaxel |
Eric L.
Wrong--- Pilot/MDX have
1. Two clutch sets, one for each rear wheel, allowing side to side distribution,
2. Outside rear wheel is powered in a turn, increasing stability.
Very different!
Elliot |
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| crew219 |
Ever think its because we have CVT? AWD systems place more drivetrain stress on the tranny hence why Audi doesn't offer a quattro option on their cvts (no torsen or even haldex).
Dave |
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| Eric L. |
quote:
Originally posted by ekaxel
Eric L.
Wrong--- Pilot/MDX have
1. Two clutch sets, one for each rear wheel, allowing side to side distribution,
2. Outside rear wheel is powered in a turn, increasing stability.
Very different!
Elliot
You are correct. The VTM-4 has a total of 4 drive modes - with the capability to divert torque to just one wheel, if its a rear wheel.
In my post I stated that I would have preferred a slight distribution of torque to the rear under normal conditions, instead of straight FWD. The ATEESA system in the FX starts at 50/50 and then switches to RWD, I wish the Murano would also default to a 50/50 start. |
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| senza |
| A LSD option , particularly in the rear, would be a cost effective way of improving the current AWD system.... |
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| crew219 |
Errr what's so good about the Pilot AWD? My mom has one and I've been driving it for the past few days. Doesn't seem like much. I like the torsen a lot better.
Dave |
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| Kris |
Excerpt from the Polish Murano review above:
“In order to sell cars in USA, it is enough to package nicely proven technology, place known brand name and set a reasonable price. Nissan has been successful with the Murano. Now, it is time for DEMANDING Europe”…….
“Engine has been detuned to 234 HP”………..it must come from two different conversion factors:
1kW=1.25HP and 1kW=1.34HP………..
Article also says that Murano is offered with one trim level only. However, a luxury one – leather, xenon lights, NAV, Bose etc. Author says: “at least we can select the color…..”
The 91/9 power split is puzzling……any ideas how did they do it? |
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| GripperDon |
| Sounds like European Envy, and I like the idea of LSD ! |
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| ekaxel |
I do agree about the Torsen. Being a proven mechanical system, it is quite reliable, and works well. Has been in Audis a long time. It is expensive.
Reread the previous posts for the Acura/Honda VTM-4 advantages over MO. |
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| crew219 |
out of curiosity . . . . how does haldex compare? Its used on the traverse VW / Audis and I think but am not 100% sure . . . . its what Subaru uses.
Dave |
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| ekaxel |
Haldex
The design of the Haldex LSC is based on a Swedish patent acquired by the Haldex Group.
The unique design of the Haldex LSC comprises three functional parts
- The hydraulic pump driven by
- the slip between the
- axles/wheels.
- The wet multi-plate clutch
- The controllable throttle valve
- with its electronics.
The unit can be viewed as a hydraulic pump in which the housing and an annular piston are connected to one shaft and a piston actuator is connected to the other.
The two shafts are connected via the wet multi-plate clutch pack, normally unloaded and thus transferring no torque between the shafts.
When both shafts are rotating at the same speed, there is no pumping action. When a speed difference occurs, the pumping starts immediately to generate oil flow. It is a piston pump, so there is a virtually instant reaction with no low-speed pumping loss.
The oil flows to a clutch piston, compressing the clutch pack and braking the speed difference between the axles. The oil returns to the reservoir via a controllable valve, which adjusts the oil pressure and the force on the clutch package.
In traction/high slip conditions, a high pressure is delivered: in tight curves (i.e. parking), or at high speeds - a much lower pressure is provided. |
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| jaak |
For the application, I think the Murano's AWD is quite appropriate. If I was looking for an AWD car, my requirements would be different, as would an off road vehicle.
I've never felt the Murano's AWD to be lacking, for it's intended application. |
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| bruno |
quote:
The unique design of the Haldex LSC comprises three functional parts
I don't like the sound of a hydraulically driven system. It is very cold where I live and hydraulics suffer/fail. |
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| ekaxel |
| That is one of the reasons why they invented synthetic lubricants. |
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