Electric suspension device
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United States of America Patent
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-
Sep 13, 2022
Grant Date -
N/A
app pub date -
Mar 18, 2021
filing date -
Mar 19, 2020
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Provided is an electric suspension device including an electromagnetic actuator that is provided between a body and wheel of a vehicle and generates damping force for damping vibration of the body. It includes: an information acquisition unit that acquires information on a wheel speed and a sprung speed of the vehicle; an estimation unit that estimates a stroke speed of the actuator based on the wheel speed; a determination unit that determines whether a wheel slip has occurred; and an orientation control unit that performs orientation control of the vehicle based on the sprung speed and the estimated stroke speed. When a wheel slip occurs, the orientation control unit performs orientation control of the vehicle based on a fixed stroke speed whose direction is the same as a direction of the sprung speed and whose magnitude is set at a predetermined fixed value, instead of the estimated stroke speed.
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