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. 16, 2008
Filed:
Jul. 20, 2006
Rassem R. Henry, Shelby Township, MI (US);
Atef A. Gayed, Marly la Ville, FR;
Rassem R. Henry, Shelby Township, MI (US);
Atef A. Gayed, Marly la Ville, FR;
Delphia Technologies, Inc., Troy, MI (US);
Abstract
A first method for estimating a torque/force exerted by a load against an actuator driven by an electric motor against the load includes measuring motor current of the electric motor and measuring a position/angle or speed/angular speed of the actuator and includes calculating the torque/force exerted by the load against the actuator using at least a difference between a calculated motor torque/force and a calculated actuator-experienced torque/force. A second method includes measuring input voltage of the electric motor instead of measuring motor current. A third method includes measuring both motor current and input voltage. In one example, without limitation, the actuator is an automotive electromechanical brake caliper.