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:
May. 07, 2002
Filed:
Dec. 06, 2000
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention provides a control apparatus for an electric vehicle, capable of reducing the switching loss while restricting the surge voltage generated in the IGBT elements constituting a driving inverter of a motor for moving the electric vehicle to a predetermined voltage below an allowable surge withstand voltage. The control device of the electric vehicle comprises an IGBT temperature detecting device for detecting the temperature of the IGBT elements, a gate resistance calculation device for detecting the resistance of the gate resistor so as to restrict the voltage including the surge voltage, which is applied to the elements, to a predetermined voltage below the allowable surge withstand voltage of the elements using an output command current, a battery voltage, and/or the detected temperature by the IGBT temperature detecting device as parameters.