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SB-106 Schematic ( PDF Datasheet ) - National Semiconductor

Teilenummer SB-106
Beschreibung ABS
Hersteller National Semiconductor
Logo National Semiconductor Logo 




Gesamt 6 Seiten
SB-106 Datasheet, Funktion
www.datasheet4u.com
Adaptive Braking Systems
(ABS)
National Semiconductor
System Brief 106
October 1990
Anti-Lock Braking System 1 Channel
TL F 10856 – 1
SYSTEM DESCRIPTION
ABS refers to a number of devices designed to avoid wheel-
lock during hard and panic braking conditions These sys-
tems have gained world attention only in the past five years
but even the simplest system provides huge gains over
electro-mechanical systems Legislation for ABS continues
throughout most of Europe and is expected to be mandated
in the U S as well
Four wheel systems provide more security with both steer-
ability and stability and are second only to engine control in
electronic content ABS systems are designed around sys-
tem hydraulics sensors and control electronics These sys-
tems are dependent on each other and the different system
components are interchangeable with minor changes in the
controller software
ANTI-LOCK
Anti-Lock systems are low cost with one wheel sensor on
the differential one control circuit and a system controller
for primarily light truck and front wheel drive passenger
cars This improves stability and only affects the rear
wheels
ANTI-SKID
Anti-Skid systems provide the next level by adding control
to all wheels and includes three wheel sensors three con-
trol circuits and the system controller This system provides
both steerability and stability during heavy braking meaning
that a driver can maintain full control of the vehicle This
level may soon become law in the U S
ADVANCED ANTI-SKID
This upgrade of the previous system requires four wheel
speed sensors four control circuits and a high performance
control system This system provides greatly increased con-
trol decreased stopping distances split surface control
(dissimilar road surfaces) and automatic parameter adjust-
ment (to match weather changes) Presently this system is
used only on very high performance vehicles
C1995 National Semiconductor Corporation TL F 10856
RRD-B30M105 Printed in U S A






SB-106 Datasheet, Funktion
www.datasheet4u.com
LIFE SUPPORT POLICY
NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL
SEMICONDUCTOR CORPORATION As used herein
1 Life support devices or systems are devices or
systems which (a) are intended for surgical implant
into the body or (b) support or sustain life and whose
failure to perform when properly used in accordance
with instructions for use provided in the labeling can
be reasonably expected to result in a significant injury
to the user
2 A critical component is any component of a life
support device or system whose failure to perform can
be reasonably expected to cause the failure of the life
support device or system or to affect its safety or
effectiveness
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