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).
1. ultra-election of four-wheel drive Glossary
Mitsubishi’s ultra-election four-wheel drive system has a history of many years, from the early 1990s at the top of the second-generation Pajero models (V33, etc.) since the application, and after another in the third generation (V73, V77, etc.) and fourth generation (V93, V87, V97, etc.) and so on models equipped with super selective four-wheel drive also from the first generation SS4 purely mechanical system (second-generation Pajero) now becomes the electronic assistance system SS4-II (third and fourth generation Pajero).
2. The four-wheel drive is selected over the basic characteristics
If you look at the gear of the transfer gearbox, four-wheel drive V97 is selected from the above super-set of the common four-wheel drive 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 “ultra-election four-wheel drive” (SS4) title.
is selected from ultra-wheel drive system has the advantage of 100 km per hour, can 2H, 4H random switching between gears, when in the 4H position, which corresponds to a full-time four-wheel type, can provide a more when good grip and driving force, but in 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: 11.9), 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 if a long time in the extreme case, it is reliable of pure or better than conventional mechanical gear transfer case.
ultra-election four-wheel drive can be said to be a very unique and usefulFour-wheel drive system, it is between road and off-road use of the environment, and non-paved road pavement has been better balanced, the reason has not been widely promoted, the most important is because Pajero sluggish market performance (both in North America or the Chinese mainland market, the market share of Mitsubishi Pajero are watered down), a typical representative of “Game no One Played”.