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:
Sep. 08, 2020
Filed:
Aug. 29, 2018
GM Global Technology Operations Llc, Detroit, MI (US);
SeyedAlireza Kasaiezadeh Mahabadi, Shelby Township, MI (US);
Seyedeh Asal Nahidi, North York, CA;
James H. Holbrook, Fenton, MI (US);
Jin-Jae Chen, Canton, MI (US);
Bakhtiar B. Litkouhi, Washington, MI (US);
Hualin Tan, Novi, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A method of controlling an active aerodynamic system of a vehicle includes calculating a first spring force estimated value from at least one sensed vehicle handling characteristic, and a second spring force estimated value from a nominal spring characteristic curve. When a difference between the first and second spring force estimated values is equal to or greater than a spring threshold value, a nominal spring characteristic curve is adjusted to define an adjusted spring characteristic curve, and the active aerodynamic system is controlled using the adjusted spring characteristic curve. When the difference between the first and second spring force estimated values is equal to or greater than the spring threshold value, a signal may also be engaged to provide a service recommendation.