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.

Date of Patent:
Dec. 04, 2001

Filed:

Dec. 17, 1999
Applicant:
Inventors:

Takahiro Yonekura, Wako, JP;

Yusuke Hasegawa, Wako, JP;

Takashi Kakinuma, Wako, JP;

Hiroyuki Abe, Wako, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02N 1/106 ; H02P 9/04 ;
U.S. Cl.
CPC ...
F02N 1/106 ; H02P 9/04 ;
Abstract

A system for controlling a series hybrid vehicle, having an internal combustion engine whose output is regulated by a throttle valve, a generator-motor connected to the engine to be rotated by the engine, an electric energy storage means connected to the first generator-motor to be charged by the first generator-motor, and a second generator-motor connected to at least one of the first generator-motor and the electric energy storage means to input an output of at least one of the first generator-motor and the electric energy storage means to drive wheels of the vehicle to propel the vehicle. In the system, a desired engine speed is determined to minimize fuel consumption, and a desired power generation amount of the first generator-motor is determined based on a determined desired power generation base value and the desired engine speed. Then, the throttle opening is controlled to achieve the desired power generation amount, thereby optimizing fuel consumption, while rapidly converging the engine speed on the desired value, without stalling the internal combustion engine.


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