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:
Oct. 27, 2020
Filed:
Mar. 26, 2018
Diomidis Katzourakis, Chania, GR;
Christopher L. Porritt, Sunnyvale, CA (US);
Johannes A. Huennekens, San Jose, CA (US);
Huibert Mees, Pleasanton, CA (US);
Paul J. Keas, Sunnyvale, CA (US);
Diomidis Katzourakis, Chania, GR;
Christopher L. Porritt, Sunnyvale, CA (US);
Johannes A. Huennekens, San Jose, CA (US);
Huibert Mees, Pleasanton, CA (US);
Paul J. Keas, Sunnyvale, CA (US);
APPLE INC., Cupertino, CA (US);
Abstract
An active suspension system for a vehicle having a wheel that is subject to an external force includes an actuator having an output structure that is connected to the wheel, an energy storage device having a compressible chamber, a valve assembly that is operable to control flow of a working fluid between the actuator and the energy storage device, and a controller that determines whether to permit or resist motion of the output structure in response to the external force. The controller permits motion of the output structure by allowing fluid to flow from the actuator to the energy storage device using the valve assembly, thereby compressing the compressible chamber. The controller resists motion of the output structure by allowing fluid to flow from the energy storage device to the actuator using the valve assembly, thereby expanding the compressible chamber.