Gm Global Technolgoy Operations, Inc.

Derek K Hogland

Kenneth L Oblizajek

John D Sopoci

David J Verbrugge

Sam M Jomaa

Ping Lee

Daniel G Gannon

Dennis J Kinchen

Wen-Hou Ma

A vehicle engine mount system comprises a housing and an inertia track assembly that forms a first fluid chamber with an upper compliant member and a second fluid chamber with the second end of the housing. The inertia track assembly has first and second passageways therethrough for conducting fluid between the first and second fluid chambers. The first passageway has a substantially greater flow resistance than the second. First and second switches are coupled to the first and second passageways, respectively, for selectively enabling the first and second switches to control fluid displacement between the first fluid chamber and the second fluid chamber.

Multistate switchable engine mount and system

A method to reduce vehicular sensitivity to torsional smooth road shake (SRS) at the steering wheel provided by selectively increasing reverse driven-impedance of the steering system via an effective dynamic tuned vibration absorber comprising the existing power steering motor inertia supported on the torsional stiffness of the gearing to the rack in the case of a REPS system, or of the column rotary shaft in the case of a CEPS system.

Method for attenuating smooth road shake in an electric power steering system

Growing community of inventors

Brighton, MI, United States of America

Derek K Hogland