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. 25, 2008
Filed:
Feb. 13, 2006
Satoru Kaneko, Naka, JP;
Tatsuyuki Yamamoto, Mito, JP;
Masaru Ito, Hitachinaka, JP;
Hisaya Shimizu, Hitachinaka, JP;
Kenta Katsuhama, Hitachinaka, JP;
Satoru Kaneko, Naka, JP;
Tatsuyuki Yamamoto, Mito, JP;
Masaru Ito, Hitachinaka, JP;
Hisaya Shimizu, Hitachinaka, JP;
Kenta Katsuhama, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An electric four-wheel drive vehicle and a control unit for the same, which can be applied to cars of class having larger displacements than the class to which the electric four-wheel drive vehicle equipped with the DC motor is applied, without increasing the cost over that of the known mechanical four-wheel drive vehicle. Front wheels of the vehicle are driven by an engine, and rear wheels are driven by an AC motor. A generator is driven by a rotating force of the engine to output DC power. An inverter converts the DC power outputted from the generator to AC power. A control unit controls the generator such that energy Pm required for driving the AC motor is outputted from the generator.