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      09-24-2011, 01:46 PM   #1
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BMW Active Differential on F10 M5, what is it?

What is the M5's new active diff? How does it help? I'm guessing it'll make it's way onto the F80, but how is a rear diff 'active'?
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      09-24-2011, 01:50 PM   #2
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Helps prevent wheel slip as much as possible while distributing the right amount of power to each wheel , mainly during cornering, which results in better handling with optimum power.
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      09-24-2011, 02:05 PM   #3
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That's the thing, how does it prevent wheel slip any more then the current M diff does?
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      09-24-2011, 02:13 PM   #4
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electronics?
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      09-24-2011, 02:13 PM   #5
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Quote:
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electronics?
The ///M diff is mechanical, unless that's changed.
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      09-24-2011, 03:27 PM   #6
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it transfers different percentages of power or torque to the wheels to help prevent slipping or compensate for things like understeer
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      09-24-2011, 03:44 PM   #7
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Doesn't the current M diff do that as well? What I'm saying is, how has it been improved over the current M Diff?
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      09-24-2011, 04:13 PM   #8
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An active diff works just like a traditional limited slip diff, except it's proactive in a sense rather than reactive. For instance, the current M Diff needs to sense slippage before it adjust the torque split between the two halfshafts, whereas an active diff will consider the steering input, yaw rate, vehicle speed, individual wheel speed, etc to proactively adjust the torque split in anticipation of what what the car will be doing. It's exactly what Ferrari's eDiff does. Same thing basically.
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      09-24-2011, 04:21 PM   #9
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An active diff works just like a traditional limited slip diff, except it's proactive in a sense rather than reactive. For instance, the current M Diff needs to sense slippage before it adjust the torque split between the two halfshafts, whereas an active diff will consider the steering input, yaw rate, vehicle speed, individual wheel speed, etc to proactively adjust the torque split in anticipation of what what the car will be doing. It's exactly what Ferrari's eDiff does. Same thing basically.
That's what I was looking for. Thanks Piloto.
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