Anti-lock device for vehicle brakes
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United States of America Patent
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-
Feb 7, 1984
Grant Date -
N/A
app pub date -
Sep 11, 1981
filing date -
Sep 11, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An anti-lock device for vehicle brakes has a wheel generator which emits pulse-type signals whose frequency is proportional to the rotary speed of the wheel. A counter counts the pulses emitted during each of successive time intervals and these pulses are connected to a first memory which stores the count of the immediate preceding time interval and to a second memory which stores the count of the time interval next preceding the intermediate time interval. A logic circuit then produces a wheel speed value which is based on the wheel speed counts of the immediate preceding and next preceding time intervals.
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