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Discussion Starter · #1 ·
any idea on how this thing works??
does this means that when i drive the car the 4x4 is already engaged??
sorry bout this silly question but i dont know this concept of "realtime 4x4"
any info and insights would help:confused::confused::confused:
 

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Real Time 4WD

The real time 4WD has a propeller shaft that comes from the front transaxle and transfer case to the rear differential. It always spins proportional to the front wheel speed. The rear wheels, of course, spin proportional to the rear wheel speed. Inside the rear differential is what Honda calls the dual pump. As long as the front wheels spin at the same speed as the rear wheels the hydraulic pressures of the dual pump equal out and no torque is applied to the rear wheels. However, if the front wheels turn faster because they are slipping, the hydraulic pressure of the front pump exceeds the rear pump. A valve opens and hydraulic pressure is applied to a clutch pack. The clutch pack applies torque to the rear wheels. As soon as the front wheels and rear wheels are spinning at the same speed the hydraulic pressures are equal and the clutch pack disengages. You may not even notice this process happening, the car just goes.

Here is a bit more of a technical discussion:

http://www.hondanews.com/categories/844/releases/3653



 
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