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. 09, 2010
Filed:
Dec. 22, 2006
Valentin Botosan, Rochester Hills, MI (US);
Gary J. Binienda, Clarkston, MI (US);
Mark R. Champine, Carmel, IN (US);
Valentin Botosan, Rochester Hills, MI (US);
Gary J. Binienda, Clarkston, MI (US);
Mark R. Champine, Carmel, IN (US);
Chrysler Group LLC, Auburn Hills, MI (US);
Abstract
A modification to the manual valve of an automatic transmission is provided which improves the shift quality of the automatic transmission when the transmission is shifted from a drive gear to either Park or Neutral. More particularly, the invention provides a control orifice which regulates the release of hydraulic fluid from one or more clutch circuits such that pressure to one or more clutches is gradually released. The gradual release of pressure form the one or more clutches provides an improved shift quality. In alternate embodiments, the present invention provides a further modification to an automatic transmission which allows the control orifice to be circumvented in situations where a rapid swap of pressure from on clutch control solenoid to another is required.