Method of estimating vehicle speed
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United States of America Patent
Stats
-
Nov 29, 1988
Grant Date -
N/A
app pub date -
Mar 30, 1987
filing date -
Mar 28, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In estimating a vehicle speed from a wheel speed and comparing the wheel speed with a reference threshold provided on the basis of that vehicle speed to control the supplying of a hydraulic braking pressure to wheel brakes, when the wheel speed is larger than the estimated vehicle speed, a predetermined value is added to that estimated vehicle speed to amend the latter, and conversely, when the wheel speed is smaller than the estimated vehicle speed, a predetermined value is subtracted from that estimated vehicle speed to amend the latter. Thus, the amended values are used as an estimated vehicle speed for controlling the hydraulic braking pressure.
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