On Tue, 25 Mar 2003 jeff@winchell.org wrote:
> > - you can brake to the traction limit of the outside wheel, which will
> > cause the inside wheel to lock/enter ABS, or you can brake to the traction
> > limit of the inside wheel, which will cause the car to slow down less
> > rapidly. *
> > * I am ignoring the rear axle for the purposes of this discussion. My
> > experience is that in any modern stock car, the brake bias is adjusted so
> > far towards the front wheels that it is impossible to lock the rear wheels
> > during normal maneuvering even with race tires installed. There are ways
> > to compensate for this, but its really a separate topic.
>
> Last year, my ESP Mustang had no ABS and it sometimes locked up in the
> rear, sometimes in the front. This year, I put in the ABS from a 98 Mustang
> Cobra and the ABS has independent adjustments for front right and left
> wheels, with the 2 rear wheels on a third adjustment channel, so I get
> dynamic brake biasing for free. I wonder if ABS systems and vehicle/course
> dynamics are so varied that it is nearly impossible to say much useful
> about ABS generically ... that specific vehicle, driver, and course testing
> is necessary.
Thanks, Jeff. I thought I *had* said some useful things about ABS
generically, so I'm glad you corrected my misconception.
Note that my footnote above explicitly says that brake bias and adjustment
wasn't addressed in my message.
KeS
|