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Differential Adjustment


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#1 CdnF1Fan

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Posted 18 August 2002 - 22:34

Exactly what do the controls on the Williams steering wheel labelled Differential Front and Differential Rear contol? I would assume other (top) teams have similar adjustments in their cars .... Detailed explanation please .....

CFF

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#2 Top Fuel F1

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Posted 19 August 2002 - 21:11

Originally posted by CdnF1Fan
Exactly what do the controls on the Williams steering wheel labelled Differential Front and Differential Rear contol? I would assume other (top) teams have similar adjustments in their cars .... Detailed explanation please .....

CFF


There is no front Differential (as in rear end) so possibly they use the word "differential" in place of the word "ratio" or "percentage". I believe the driver can adjuct the ratio of the amount of braking between the front pair of brakes and the rear pair of brakes. I'll have to look that up again.

A quick look at the rules says there can only be one brake system however there is one hydraulic circuit to the front brakes and another to the rear brakes. If the driver can vary the percentage of braking from front to rear they do not spell that out.

#3 CdnF1Fan

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Posted 20 August 2002 - 02:22

:eek: If I'm not mistaken (and I don't think I am), brake bias is required by FIA reg's to be a mechanical adjustment (as opposed to an electronic one). The front/rear brake bias is adjusted via a mechanical knob lower in the cockpit.

Surely someone here must know what the Diff FRONT / Diff REAR adjustments are for?

CFF

#4 desmo

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Posted 20 August 2002 - 02:32

Ordinarily a differential adjustment would call up different maps for electrohydraulically controlling the diff clutch packs and we've recently heard anecdotal reports of drivers changing to different settings for individual corners at least during Q, what Diff FRONT might do is a complete mystery to me. I would assume that now most corner specific diff setting changes would ordinarily be done either through onboard DGPS data, or via bidirectional telemetry rather than in response to driver inputs.

#5 Top Fuel F1

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Posted 20 August 2002 - 20:45

Originally posted by CdnF1Fan
:eek: If I'm not mistaken (and I don't think I am), brake bias is required by FIA reg's to be a mechanical adjustment (as opposed to an electronic one). The front/rear brake bias is adjusted via a mechanical knob lower in the cockpit.


Re:

http://www.ferrari.i...nload/games.jsp

At the Re: URL click on "F2001 Interactive Steering Wheel". Now you can see the white buttons at the top right and left of the wheel. They say the right one shifts the brake balance to the front brakes and the left one to the rear brakes. Note they say used during Qualification, which to me would also be used in in Practice.

Also there ia a green and white dial next to the yellow paddle on the left that also adjusts brake balance to compensate for caliper pad wear, amount of fuel left, tire wear and etc. Turning the dial to the right shifts the balance to the front brakes and turning it to the left shifts balance to the rear. I would have to assume this dial is used during a race. Whether that has to be while the car is in the Pits or any time, I'm not sure. The degree of brake bias possible has to be programmed in the car prior to the race.

Rgds;