Supercharging device for engine
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United States of America Patent
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Oct 13, 2020
Grant Date -
Sep 12, 2019
app pub date -
Feb 20, 2019
filing date -
Mar 7, 2018
priority date (Note) -
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status (Latency Note)
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Abstract
A supercharging device for an engine is provided, which includes a supercharger provided to an intake passage of the engine, an actuator configured to drive the supercharger, and a controller including a processor configured to control the actuator to drive the supercharger when an operating state of the engine is in a given supercharging range, and to stop the supercharger when the operating state is in a non-supercharging range. The controller causes the actuator to forcibly drive the supercharger in the non-supercharging range when a temperature of the supercharger is lower than a preset temperature, and prohibits the forcible drive of the supercharger when a rotation speed of the supercharger during the forcible drive of the supercharger is lower than a preset rotation speed.
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