An tilo c k Bra ke S ys te m (ABS )
109n
Alwa ys d e p re s s th e b ra ke p e d a l s te a d ily
Th e c o n c e p t
Bra kin g w ith ABS
a nd w ith c ons is te nt a p p lic a tio n fo rc e .
Do n ot p um p th e b ra ke s .
ABS e nha nc e s a c tive s a fe ty b y h e lp ing The s ys te m b e c om e s o p e ra tive o nc e
to p re ve nt th e whe e ls from loc kin g whe n th e ve hic le e xc e e d s a s p e e d o f a p p ro x.
th e b ra ke s a re a p p lie d . Th is is d one b e - 5 m p h (8 km /h). Th e ABS is d e a c tiva te d On ro a d s urfa c e s th a t h a ve a lo os e s ur-
c a us e lo c ke d w he e ls a re d a nge ro us .
Wh e n th e fro nt w he e ls s lid e , th e d rive r b a c k b e low a p p ro x. 2 m p h (3 km /h).
whe ne ve r th e ve hic le 's s p e e d d ro p s
fa c e la ye r o n a firm b a s e w ith g ood
tra c tio n (o n g ra ve l o r s now, fo r e xa m -
los e s s te e ring c ontro l o ve r th e ve hic le . This m e a ns th a t th e w he e ls c a n lo c k in p le ), o r w he n d rivin g w ith s now c ha ins ,
Tra c tio n lo s s a t th e re a r w he e ls c a n th e fin a l p ha s e o f a b ra ke a p p lic a tio n – b ra kin g d is ta nc e s m a y b e lo nge r th a n
c a us e th e re a r a xle to b re a k in to a n u n- a fa c to r o f n o s ignific a nc e in a c tu a l
c ontro lle d s kid . p ra c tic e .
with lo c ke d w he e ls . Ho we ve r, AB S
c ontin ue s to p ro vid e e nha nc e d ve hic le
s ta b ility a nd s te e ring re s p ons e u nd e r
th e s e c ond itio ns .
ABS is d e s igne d to m e e t tw o e s s e ntia l If yo u a re in a s itu a tio n th a t re q uire s fu ll
re q uire m e nts d uring e ve ry b ra ke a p p li- b ra kin g, yo u w ill e xp loit th e fu ll b e ne fits
c a tio n:
of th e AB S s ys te m if yo u a p p ly m a xi-
m um b ra ke p re s s ure ("p a nic s to p ").
S inc e th e ve hic le m a inta ins s te e ring re -
s p ons ive ne s s , yo u c a n a vo id p os s ib le
ob s ta c le s w ith a m inim um o f s te e ring
e ffort, d e s p ite th e fu ll b ra ke a p p lic a tio n.
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to h e lp p ro vid e ve hic le s ta b ility
to h e lp m a inta in s te e ring c ontro l a nd
m a ne uve ra b ility – o n a ll typ e s o f ro a d
s urfa c e s (a s p ha lt, c onc re te , m ud ,
we t, s now, ic e ).
The AB S s ys te m 's c los e d -loop c ontro l
c irc uit c yc le s in fra c tio ns o f a s e c ond .
A p uls a tio n a t th e b ra ke p e d a l ind ic a te s
to th e d rive r th a t AB S is a c tive , th a t is ,
th a t th e ve hic le is w ith in its m a xim um
b ra kin g ra nge . In a d d itio n, a p uls a tio n –
a re s ult o f th e c ontro l fu nc tio n c yc le s –
ind ic a te s to th e d rive r th a t ve hic le
s p e e d s hould b e re d uc e d to a d a p t to
ro a d s urfa c e c ond itio ns w he n th e re is
re d uc e d tra c tio n a nd g rip b e tw e e n tire s
a nd ro a d s urfa c e (s lip p e ry ro a d s ur-
fa c e ).
The s ys te m c a n a c hie ve th e s horte s t
b ra kin g d is ta nc e s p os s ib le u nd e r m os t
c ond itio ns (o n s tra ight- a wa ys a nd in
c urve s , o n a s p ha lt, ic e , w e t ro a d s ur-
fa c e s , e tc .).
Online Edition Part-No. 01 41 0 155 062 - © 07/99 BMW AG
| Categories | BMW 5-Series Manuals, BMW Manuals |
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| Document Type | Free Auto PDF Owners Manual Download |
| Tags | BMW E39, BMW M5 |
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| Publisher | bmwusa.com |
| Wikipedia's Page | BMW M5 |
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