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:
Feb. 21, 2017
Filed:
Jun. 05, 2012
Erik Hoevenaars, Göteborg, SE;
Mats Alakula, Lund, SE;
Erik Hoevenaars, Göteborg, SE;
Mats Alakula, Lund, SE;
Volvo Lastvagnar AB, Göteborg, SE;
Abstract
An electrical apparatus for powering an electrical machine with two different energy sources includes an electrical drive system having a battery and a super capacitor, and an electrical machine, wherein the electrical machine includes a rotor, a first separate multi-phase stator winding and a second separate multi-phase stator winding, wherein the drive system includes a first multi-phase bridge inverter connected to the first multi-phase stator winding, and wherein the apparatus further includes a second multi-phase bridge inverter connected to the second multi-phase stator winding and to the battery, where the first multi-phase bridge inverter is connected to a super capacitor, and where the drive system includes a switch adapted to connect and disconnect the DC links of the first multi-phase bridge inverter to and from the second multi-phase bridge inverter. The super capacitor can be used to both deliver and absorb transient power peaks which can prevent the battery from exposure of the power peaks which can improve the battery life.