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:
Aug. 20, 1996
Filed:
Mar. 06, 1995
Helmut Gimmler, Schwaikheim, DE;
Ulrich Nester, Neuhausen, DE;
Gerhard Kurz, Wendlingen, DE;
Werner Huhn, Weinstadt, DE;
Mercedes-Benz AG, , DE;
Abstract
A process determines the torque transmitted by the gas forces to the crankshaft of an internal-combustion engine. The rotational speed data which is detected by determining the angular speed of a component fixedly connected with the crankshaft is analyzed, and the rotating moment is computed from the angular speed correlated with the rotational speed by way of the moment of inertia of the engine. In addition to the rotational moment of the engine, the torques of the oscillating masses, the torsional moments of the crankshaft and the static torques resulting from all slowly variable friction moments, effective moments and load moments are determined. From a balance of these individual torques, the torque resulting form the gas forces is determined. Subsequently, the work delivered by the individual cylinders per working cycle is determined from this torque. The thus determined operating parameters is used for the engine control and/or for the on-board diagnosis.