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:
Feb. 17, 2009
Filed:
Feb. 13, 2006
Jack P. Koski, South Lyon, MI (US);
Ryan M. Jenness, Ypsilanti, MI (US);
Stephen W. Powell, South Lyon, MI (US);
Mark A. Vernacchia, Northville, MI (US);
Jack P. Koski, South Lyon, MI (US);
Ryan M. Jenness, Ypsilanti, MI (US);
Stephen W. Powell, South Lyon, MI (US);
Mark A. Vernacchia, Northville, MI (US);
GM Global Technology Operations, Inc., Detroit, MI (US);
Abstract
An electronic transmission range selection (ETRS) system for shifting a transmission range of a transmission includes an electro-mechanical park inhibit assembly that operates to disallow the ETRS system from shifting from an Out-of-Park mode to a Park mode under certain circumstances. The park inhibit assembly includes a follower having a recess defined thereon and slidably disposed within a follower bore. In one embodiment a selectively energizable solenoid assembly is mounted substantially perpendicular to the follower and operates to bias a ball into the recess when energized thereby locking the ETRS system in the Out-of-Park mode. In another embodiment the park inhibit assembly includes a selectively energizable motor assembly mounted substantially perpendicular to the follower. The motor assembly operates to enforce the Park and Out-of-Park mode of the ETRS system.