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. 17, 1986
Filed:
Oct. 09, 1984
Ronald E Daubenspeck, Indianapolis, IN (US);
Robert R Smyth, Bloomfield Hills, MI (US);
Donald Speranza, Canton, MI (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
A method for controlling an automatic mechanical transmission system (2) of the type comprising a throttling control device (19) controlled heat engine (12) a nonpositive coupling such as a friction master clutch (14) and a jaw clutch type multispeed mechanical transmission (10) utilizing a digital microprocessor (100) based electronic controller (30) is provided. The method includes providing logic routines for the microprocessor including a high priority algorithm for processing current inputs to determine current system status and to generate outputs including command outputs based upon current system status and a low priority algorithm for providing a signal indicative of the currently desired gear ratio to the high priority algorithm. The logic routines perform the low priority algorithm on a continuous loop basis and interrupting the low priority algorithm to perform the high priority algorithm at least twice during a critical control period corresponding to the time required for the system actuators to respond to a command output.