ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,491,745, issued on Dec. 9, was assigned to TOYOTA JIDOSHA K.K. (Toyota, Japan).

"Vehicle vibration damping system" was invented by Yanqing Liu (Susono, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A vehicle vibration damping system includes a suspension; an actuator; and a control device configured to calculate a damping force to be applied to the sprung structure based on a theory of skyhook control, and control the actuator. The control device calculates the damping force based on a correction control parameter obtained by multiplying a control parameter of a denominator of a transfer function of the sprung structure with respect to a road surf...