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:
Dec. 02, 2014
Filed:
Apr. 01, 2009
Applicant:
David A. Vanraaphorst, Auburn Hills, MI (US);
Inventor:
David A. VanRaaphorst, Auburn Hills, MI (US);
Assignee:
ArvinMeritor Technology, LLC, Troy, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60G 17/04 (2006.01); B60G 17/052 (2006.01); F16F 9/05 (2006.01); B60G 17/016 (2006.01); B60G 17/048 (2006.01); B60G 17/015 (2006.01);
U.S. Cl.
CPC ...
B60G 17/0155 (2013.01); B60G 17/016 (2013.01); B60G 17/0485 (2013.01); B60G 2600/20 (2013.01); B60G 2800/162 (2013.01); B60G 2600/124 (2013.01); B60G 2400/252 (2013.01); B60G 2800/014 (2013.01); B60G 2400/51222 (2013.01); B60G 2800/012 (2013.01); B60G 2600/182 (2013.01); B60G 2202/314 (2013.01); B60G 2500/202 (2013.01); B60G 17/0521 (2013.01); B60G 2202/152 (2013.01); B60G 2500/2041 (2013.01); B60G 2600/70 (2013.01); F16F 9/057 (2013.01); B60G 2400/51 (2013.01); B60G 2202/412 (2013.01); B60G 2600/09 (2013.01); B60G 2600/1877 (2013.01); B60G 2800/91 (2013.01); F16F 2230/08 (2013.01); B60G 2800/702 (2013.01);
Abstract
An active air suspension system includes an air spring assembly that has a piston airbag and a primary airbag mounted around the piston airbag to provide a variable force and rate dual air spring configuration. The air suspension system is configured to accurately control pressure within the piston airbags in a closed-loop manner. Continuous control of the piston pressure provides an accurate increase or decrease of spring rate or force depending on the controller inputs.