F1 Differential

All that has to do with the power train, gearbox, clutch, fuels and lubricants, etc. Generally the mechanical side of Formula One.
Tryggmundur
Tryggmundur
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Joined: Wed Jan 23, 2019 7:52 pm

F1 Differential

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Hi there,
Im doing an assignment on the driveline layout of F1 cars and the final drive is a key point of the assignment. I know that F1 cars have limited slip diffs but I'm unsure of what type they use (Clutch type etc.)

Anyone know specifically what type of LSD the cars use?

Thanks in advance for any help!

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Tim.Wright
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Joined: Fri Feb 13, 2009 5:29 am

Re: F1 Differential

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It's an electro-hydraulically controlled clutch plate LSD. But the gear layout is with planetary gears rather than bevelled pinions.

There are some good cutaways in Peter Wright's (no relation) Ferrari book.

The clutch pack load (and hence the locking torque) is contolled and a hydraulic cylinder.
Not the engineer at Force India

saviour stivala
saviour stivala
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Joined: Wed Apr 25, 2018 11:54 am

Re: F1 Differential

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The FERRARI F1 2000 had an electro hydraulically controlled limited slip differential, the differential was an epicyclical gear type using five pairs of sun-gears running on needle bearings, a three or four-plate clutch , the clamping loads on which was applied by an annular hydraulic cylinder, controlled friction across the differential. The design aim of the final drive was driven by the desire to make it as narrow as possible as the width of the underbody diffusor is affected. The tripod constant velocity joints were placed as near the centre line of the car as possible, the elecrto hydraulically controlled limited slip differential was situated between them. The engine (maximum 18000 rpm) to the driven rear wheels (maximum 2800 rpm) required a 0.156 speed reduction and this was accomplished in three stages, the first stage was the gear cluster, the output shaft of which drives an intermediate shaft via spiral bevel gears (0.61 speed reduction), the third stage was the straight-cut final drive gear pair (0.306 speed reduction). Giving an overall (0.186 speed reduction) for the final two stages. Three alternative gear pairs (14/50, 14/52, 15/49) for the final stage were available.

saviour stivala
saviour stivala
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Joined: Wed Apr 25, 2018 11:54 am

Re: F1 Differential

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Might interest some watching:

Last edited by Steven on Sun Jan 27, 2019 9:12 pm, edited 2 times in total.
Reason: Replaced google search suggestion to actual result