smart alternators
- Thread starter JHZR2
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Originally Posted By: CBR.worm
Bmw, Audi and VW have had a clutch on some of their alternators for a while, I had to pay $733 to replace my wifes alternator clutch/pulley with 63k on the clock.
On hers it would allow the alternator to rev with the engines power strokes, but freewheel on the compression strokes. Also if you would shift at REDLINE you would hear the alternator spin down slowly after the shift.
Hers does not have regenerative braking, although it did break a lot.
Doesn't sound right? A multi-cylinder engine goes through 4 strokes (intake, compression, power, exhaust) simultaneously (assuming you have more than 4 cyls). How do you engage the clutch on a power stroke and de-clutch on a compression stroke?
Bmw, Audi and VW have had a clutch on some of their alternators for a while, I had to pay $733 to replace my wifes alternator clutch/pulley with 63k on the clock.
On hers it would allow the alternator to rev with the engines power strokes, but freewheel on the compression strokes. Also if you would shift at REDLINE you would hear the alternator spin down slowly after the shift.
Hers does not have regenerative braking, although it did break a lot.
Doesn't sound right? A multi-cylinder engine goes through 4 strokes (intake, compression, power, exhaust) simultaneously (assuming you have more than 4 cyls). How do you engage the clutch on a power stroke and de-clutch on a compression stroke?
Originally Posted By: CBR.worm
On hers it would allow the alternator to rev with the engines power strokes, but freewheel on the compression strokes. Also if you would shift at REDLINE you would hear the alternator spin down slowly after the shift.
On hers it would allow the alternator to rev with the engines power strokes, but freewheel on the compression strokes. Also if you would shift at REDLINE you would hear the alternator spin down slowly after the shift.
obviously the finer points of its operation have been misunderstood.
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