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:
Oct. 16, 1990
Filed:
May. 26, 1989
Gerhard Kirstein, Augsburg, DE;
Renk Aktiengesellschaft, Augsburg, DE;
Abstract
An engine (4) of a drive system (2) is adjusted and controlled by a main controller (24). When the main controller (24) breaks down, the operation of the engine can still be continued as emergency operation with an emergency controller (26). However, the controlling functions of the latter are not as optimum as those of the main controller (24). This functional deficiency of the emergency controller (26) is compensated for at least partly by an emergency program of an electronic transmission control device (28). To compensate for the functional deficiency of the emergency controller (26), the transmission control device (28) appropriately controls or regulates a transmission unit (6, 8, 10) of the drive system (2), which comprises a hydrodynamic torque converter (8) with a bridging clutch (10) that can bridge the latter, and a gear-shift mechanism (6).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile