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. 01, 2011
Filed:
Jun. 23, 2008
Jean-pierre Krauer, San Jose, CA (US);
Jeffrey Brian Straubel, Menlo Park, CA (US);
Troy Adam Nergaard, San Francisco, CA (US);
Ian Craven, San Carlos, CA (US);
Arthur Joseph Hebert, San Carlos, CA (US);
Jean-Pierre Krauer, San Jose, CA (US);
Jeffrey Brian Straubel, Menlo Park, CA (US);
Troy Adam Nergaard, San Francisco, CA (US);
Ian Craven, San Carlos, CA (US);
Arthur Joseph Hebert, San Carlos, CA (US);
Tesla Motors, Inc., Palo Alto, CA (US);
Abstract
An apparatus comprising a rechargeable battery pack installed in an electric vehicle, a power supply coupled to the rechargeable battery pack, the power supply operable to provide a charge voltage to perform charging operations on the rechargeable battery pack, a heater to heat a fluid to be circulated through the rechargeable battery pack, the fluid thermally coupled to a plurality of battery cells within the rechargeable battery pack, a switching circuit, the switching circuit coupled to the heater and to the power supply, the switching circuit operable in a first mode to couple the source of electrical power to the heater without coupling the source of electrical power to the rechargeable battery pack, the switching circuit operable in a second mode to couple a source of electrical power external to the electric vehicle to the power supply to form a recharging circuit in order to perform charging operations on the rechargeable battery pack.