System and method for automatically controlling vehicle speed so as to trail a preceding vehicle
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United States of America Patent
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Oct 1, 1991
Grant Date -
N/A
app pub date -
Dec 10, 1985
filing date -
Dec 19, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system for automatically controlling vehicle speed calculates the relative speed between the subject vehicle and another preceding vehicle on the basis of the intervehicle distance detected by an intervehicle distance detector. One of a number of relative speed values derived with reference to different sampling periods is selected according to the magnitude of one of the relative speed values so that a highly accurate and fast responsive system for controlling the vehicle speed can be achieved on the basis of the vehicle speed, intervehicle distance, and selected relative speed.
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