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:
Jan. 11, 2005
Filed:
Sep. 13, 2002
Tomohiro Fukumura, Rochester Hills, MI (US);
Brian J. Marlett, Shelby Township, MI (US);
Sanjaya Kumar Dash, Rochester Hills, MI (US);
Tomohiro Fukumura, Rochester Hills, MI (US);
Brian J. Marlett, Shelby Township, MI (US);
Sanjaya Kumar Dash, Rochester Hills, MI (US);
Siemens VDO Automotive Corporation, Auburn Hills, MI (US);
Abstract
A pinch detection system and method controls the speed of a motor moving an object by first calculating the actual motor force and then comparing the actual motor force with a reference force value in a reference field. A pinch condition is indicated if the difference between the actual force and the reference force exceeds a selected pinch threshold. The difference is also used to update the reference field, the pinch threshold and the desired speed of the motor so that the reference field will eventually reflect the actual force profile of the object. The updated pinch threshold is also used to control the motor speed so that the pinching force remains constant regardless of the pinch threshold value.