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:
Dec. 27, 2005
Filed:
Dec. 19, 2003
Nathan Hosler, Rochester Hills, MI (US);
Brandon Brigham, Clarkston, MI (US);
Javed Dada, Lapeer, MI (US);
Michael J Mcneil, Rochester Hills, MI (US);
Nathan Hosler, Rochester Hills, MI (US);
Brandon Brigham, Clarkston, MI (US);
Javed Dada, Lapeer, MI (US);
Michael J McNeil, Rochester Hills, MI (US);
DaimlerChrysler Corporation, Auburn Hills, MI (US);
Abstract
A turbine acceleration control system for a transmission in a vehicle determines a desired turbine acceleration based on a downshift type and an altitude of the vehicle. The turbine acceleration control system determines a downshift type that results from one of a throttle increase, a manual downshift, or vehicle deceleration. An altitude module determines an altitude of the vehicle. A vehicle controller communicates with one or more lookup tables to determine the desired turbine acceleration based on the downshift type and the altitude. Additionally, current turbine speed and torque converter slip are considered by the controller in determining the desired turbine acceleration.