PDA

View Full Version : Land Rover Set To Utilize Haldex AWD System - TruckTrend Magazine



RSS News Robot
29th January 2009, 11:20 AM
<img src=http://nt3.ggpht.com/news?imgefp=Z-zJLIJWIzEJ&imgurl=image.trucktrend.com/f/features/news/2009/16620685%2Bpheader/163_news090128_00l%2B2009_land_rover_range_rover_s port%2Bfront_rolling_view.jpg width=80 height=37 alt="" border=1>
TruckTrend Magazine (http://news.google.com.au/news/url'sa=T&ct=au/1i-0&fd=R&url=http://www.trucktrend.com/features/news/2009/163_news090128_land_rover_haldex_awd_system&cid=0&ei=JwSBSZaAOIegM73coZkG&usg=AFQjCNFu6qtnT5Lsza6oHHwbXVKuTCplRA)
<img alt="" height="1" width="1">
Land Rover Set To Utilize Haldex AWD System (http://news.google.com.au/news/url'sa=T&ct=au/1-0&fd=R&url=http://www.trucktrend.com/features/news/2009/163_news090128_land_rover_haldex_awd_system&cid=0&ei=JwSBSZaAOIegM73coZkG&usg=AFQjCNFu6qtnT5Lsza6oHHwbXVKuTCplRA)
TruckTrend Magazine - 4 hours ago
By Benson Kong Premium SUV provider Land Rover will be using Haldex&#39;s electronically controllable systems for one of its new model&#39;s all-wheel-drive system. ...


More... (http://news.google.com.au/news/url'sa=T&ct=au/1-0&fd=R&url=http://www.trucktrend.com/features/news/2009/163_news090128_land_rover_haldex_awd_system&cid=0&ei=JwSBSZaAOIegM73coZkG&usg=AFQjCNFu6qtnT5Lsza6oHHwbXVKuTCplRA)

abaddonxi
29th January 2009, 11:31 AM
According to Wiki, already in use on Freelander 2.
Haldex Traction - Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/Haldex)


Third Gen - 2006

The third generation of Haldex coupling made its appearance on the newly re-designed Land Rover (http://en.wikipedia.org/wiki/Land_Rover) Freelander 2 (http://en.wikipedia.org/wiki/LR2) (LR2 (http://en.wikipedia.org/wiki/LR2) in the United States). With enhanced capabilities, It allows more immediate off road response. The Freelander's 4x4 system has been developed in conjunction with Haldex, whose centre-coupling technology continuously alters the front-rear torque split, normally through a hydraulically operated multi-plate wet clutch. However, Land Rover wanted an electronically controlled centre coupling – linking the propshaft to the rear differential – that could pre-engage at rest to reduce wheelspin from standing starts, engage quickly when traction loss was detected and disengage quickly without compromising stability control systems. The system also had to transmit the necessary torque to achieve Freelander 2's off-road traction demands. The result is used exclusively on Freelander 2, and pre-emptively engages four-wheel drive quickly and completely. An improved high-pressure pre-charge pump charges the hydraulic system as soon as the engine is started, allowing for full-time 4x4 from rest. It also reduces the time taken to achieve full torque once wheel-slip has been detected – within 15 degrees of wheel-slip rotation (compared with 50 degrees of wheel-slip rotation with the previous generation Haldex). The Freelander 2's Haldex unit is designed to allow up to 1500 Nm of torque transmission. An accumulator also speeds up the unit's response. Full torque transmission can be achieved in 150 milliseconds. In effect, the new Haldex coupling gives the benefits of full-time 4x4 and the efficiency and fuel economy of an on-demand system. [4] (http://en.wikipedia.org/wiki/Haldex#cite_note-3)

This generation of Haldex coupling is later shared with Volvo's complete lineup (Manufactured 2005-2008, depending on model) and is called "Instant Traction" in documentation by Volvo.

Phoenix
29th January 2009, 11:41 AM
I think they are talking about a seperate system for a production LRX, which would make sense. I doubt they would modify the LR2 . FL2 one now. That had been planned to have stop start and hybrid powertrains as it was I believe.