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:
Jan. 07, 2025
Filed:
Jul. 07, 2020
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Mitsuhiro Kadota, Tokyo, JP;
Masatsugu Arai, Tokyo, JP;
Atsushi Kitaguchi, Tokyo, JP;
Naoki Fukuda, Tokyo, JP;
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Abstract
To provide an electric vehicle capable of reducing heat generation of the switching elements while achieving energy saving, the electric vehicle includes: an engine; a first generatordriven by the engine; a first rectifier circuitconnected to the output of the first generator; a first DC lineto receive the DC output of the first rectifier circuit; a driving motorconnected to the first DC line; a power converterconfigured to convert voltage of the first DC line; a second DC lineto receive the DC output subjected to voltage conversion by the power converter; an auxiliary deviceconnected to the second DC line; and a controllerconfigured to control the power converter. The controller is configured to, in response to the voltage Vof the first DC line becoming equal to or less than a first threshold V, control the output power Pof the power converter to a rated power P, and in response to the voltage becoming larger than the first threshold, control the output power Pto be smaller than the rated power.