Mitsubishi’s ultra-election four-wheel drive system has a history of many years, since the early 1990s, the second generation Pajero models (V33, etc.) on top of the application, and after another in the third generation (V73, V77, etc.) and fourth Generation (V93, V87, V97, etc.) the model’s equipment, has become a four-wheel drive is selected over current electronic assistance system SS4-II (the third from the first generation purely mechanical SS4 (second generation Pajero), fourth generation Pajero).
Pajero V97
If the single look from the splitter gear, V97 selected from the above super-wheel-drive four-wheel drive is a common system, with 2H, 4H, 4HLC, 4LLC four gear, in the two modes, the limited slip center differential is locked LSD, to provide a uniform driving force is four. Notably, however, the mode 4H, under normal circumstances, is still the major driving forces provided by the rear wheel, but may range 33:67 and 50:50 in the four-wheel drive system according to the traffic information collected, the front, the rear wheel torque distribution within the dynamic adjustment, which many electronic aids and all-wheel-drive system and very approximate, because with such a capability, the system can be dubbed ldquo; ultra-election four-wheel drive rdquo; (SS4) title.
over the four-wheel drive transfer case selected from the four gears
in the new Pajero 3.8 and 3.0 models with models, press R / D lock button to lock the rear differential
is selected from the advantages over four-wheel drive system is that within 100 kilometers per hour, may 2H, 4H random switching between gears, 4H position when in its the equivalent of a full-time four-wheel type, can provide better grip and driving force, while in the 2H position, pure rear-wheel drive vehicle fuel economy will have improved to some extent, so that the driver’s choice is very free. As for the failure 4LLC 4HLC and non-paved road, which may amplify the torque output (V73 to an example, and 4LLC 4HLC torque output is 1: 1.9), the front and rear torque output ratio is fixed to 50 in both cases : 50. Ultra selected from four-wheel drive (SS4-II) shortcomings in that the center differential is a more specific electrically controlled viscous coupling (the VCU), meet the general road no problem, but ifUnder long time in an extreme case, its reliability is not as good as the traditional purely mechanical gear transfer case.
good adhesion use on paved road 2H mode to
4LLC enough to conquer most of the models are impassable road conditions
[123 ] SS4-II transfer case, as VCU red box, the right side of the planetary gear set VCU
can be said to be four-wheel drive is selected over a very characteristic of the four-wheel drive system and useful, it is between the road and off-road, paved and non-paved road environment have been well balanced, the reason has not been widely promoted, the most important is because Pajero sluggish market performance (both North America and China mainland market Mitsubishi Pajero market share are worse than before), became ldquo; praised rdquo; typical.
on behalf of models: Pajero V73, V97, etc. type combinations: time and full-time four-wheel drive combined
advantages: wide application range environment, pattern great choice
inadequate : LSD general reliability in harsh conditions