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:
Nov. 08, 2016
Filed:
Apr. 02, 2013
Volvo Truck Corporation, Göteborg, SE;
Jonas Storm, Hisings Backa, SE;
Jörgen Kjellberg, Torslanda, SE;
Volvo Truck Corporation, Göteborg, SE;
Abstract
A method for determining the efficiency of an electric energy system of a hybrid vehicle includes determining a measure representative of a relation between the electrical brake energy and the mechanical brake energy, by determining a requested brake energy for a first vehicle retardation, and by determining an actual electrical brake energy and the actual mechanical brake energy during the vehicle retardation, determining a new measure representative of a relation between the electrical brake energy and the mechanical brake energy at a subsequent second similar vehicle retardation, comparing the determined measures representative of a relation between the electrical brake energy and the mechanical brake energy of the first and second vehicle retardations, where the actual efficiency of the energy system is obtained from the change in the measure representative of a relation between the electrical brake energy and the mechanical brake energy of the first and second vehicle retardations.