Automatic speed control system for automotive vehicles
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United States of America Patent
Stats
-
Mar 24, 1998
Grant Date -
N/A
app pub date -
Sep 15, 1995
filing date -
Sep 20, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An automatic speed control system for an automotive vehicle comprises a vehicle-speed sensor, a throttle actuator adjusting an opening angle of a throttle, a brake actuator adjusting a brake-fluid pressure applied to wheel cylinders, and a switching-operation decision unit controlling the switching from one of a driving-force control of the throttle actuator and a braking-force control of the brake actuator to the other. A first arithmetic circuit calculating a command signal value for the throttle actuator and a second arithmetic circuit calculating a command signal value for the brake actuator are designed to provide transition durations. The decision unit acts to continue either one or the other control executed prior to a transition for its transition duration.
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