The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 20, 2021
Filed:
Sep. 13, 2018
Paul J. Keas, San Jose, CA (US);
Jonathan L. Hall, Emerald Hills, CA (US);
Kan Zhou, Sunnyvale, CA (US);
Troy A. Carter, Sunnyvale, CA (US);
Neal M. Lackritz, Mountain View, CA (US);
Paul J. Keas, San Jose, CA (US);
Jonathan L. Hall, Emerald Hills, CA (US);
Kan Zhou, Sunnyvale, CA (US);
Troy A. Carter, Sunnyvale, CA (US);
Neal M. Lackritz, Mountain View, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
A suspension system includes a primary actuator, an inertial actuator, and a controller. The primary actuator applies force between a sprung mass and an unsprung mass of a vehicle to control movement therebetween. The inertial actuator applies force between the unsprung mass and a reaction mass to damp movement of the unsprung mass. The inertial actuator has a threshold capacity. The controller controls the primary actuator and the inertial actuator. The controller determines a required damping of the movement of the unsprung mass, and apportions the required damping between the primary actuator and the inertial actuator.