Volvo awd how does it work

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Comment moderation is enabled. Your comment may take some time to appear. The fifth generation system simplified the design and uses only a computer controlled high-pressure hydraulic pump to replace the accumulators and solenoids used in previous versions. Volvo also markets the fifth generation system as "Instant Traction". Andrew is an aerospace engineer and car fanatic that enjoys working on his garage of Volvos and Subarus. Dadhood doesn't have to be boring.

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However, before the switchover to the Haldex system in , Volvo used a viscous coupling designed by GKN Driveline to transfer torque to the rear axles. Primary power goes to the front wheels. The rear drive shaft incorporates a viscous coupling Haldex on the new XC and as long as front and rear axles rotate at the same speed the coupling unit would remain inactive and the rear tires receive no torque - they are just rolling along. Would indeed slippage occur at the front wheels, the VC Haldex will create a power flow to the rear axle.

But if only the front is powered in no slip situations which is almost always and the rear does not get any torque - how can Volvo claim it to be an AWD system? Surprisingly, if only one axle is powered, front and rear axles do not rotate at the same speed.