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:
Jun. 14, 1994
Filed:
May. 19, 1993
Applicant:
Inventor:
Howard L Benford, Bloomfield Hills, MI (US);
Assignee:
Chrysler Corporation, Highland Park, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M / ;
U.S. Cl.
CPC ...
731181 ; 374141 ;
Abstract
A method for predicting the temperature of automatic transmission fluid, in real time, in an automatic transmission. The method involves determining a constant for thermal inertia of the transmission, determining a torque converter heat flow, determining a transmission heat flow, determining a transmission cooler heat flow and determining an exterior-of-transmission heat flow. From each of the four above-mentioned heat flows and the above-mentioned constant, the transmission fluid temperature is predicted. The predicted temperature is used to modify operational parameters of the transmission such as its shift tables.