Device for maintaining a constant vehicle speed
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United States of America Patent
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Oct 23, 1984
Grant Date -
N/A
app pub date -
Jul 24, 1981
filing date -
Nov 5, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An intake system of an engine comprising a main intake passage which has a throttle valve therein. The throttle valve is controlled by a main actuator. An auxiliary intake passage is branched off from the main intake passage located upstream of the throttle valve and is connected to the main intake passage located downstream of the throttle valve. An auxiliary valve, controlled by a subactuator, is arranged in the auxiliary intake passage. The vehicle speed is controlled by the main actuator when the vehicle speed is too increased or too reduced relative to a set speed to be maintained. Contrary to this, the vehicle speed is controlled by the subactuator when the vehicle speed is maintained at a speed near the set speed.
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