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.:

US 6837320 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 04, 2005

Filed:

Nov. 22, 2002
Applicants:

Teruo Wakashiro, Shioya-gun, JP;

Shigetaka Kuroda, Utsunomiya, JP;

Atsushi Matsubara, Utsunomiya, JP;

Shinichi Kitajima, Utsunomiya, JP;

Atsushi Izumiura, Utsunomiya, JP;

Yasuo Nakamoto, Utsunomiya, JP;

Inventors:

Teruo Wakashiro, Shioya-gun, JP;

Shigetaka Kuroda, Utsunomiya, JP;

Atsushi Matsubara, Utsunomiya, JP;

Shinichi Kitajima, Utsunomiya, JP;

Atsushi Izumiura, Utsunomiya, JP;

Yasuo Nakamoto, Utsunomiya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60K 604 ;
U.S. Cl.
CPC ...
Abstract

A hybrid vehicle comprises an engine and a motor as its drive sources. The hybrid vehicle also comprises a control device which stops the fuel supply to the engine at the time of vehicle deceleration, and performs regenerative braking by the motor depending on the deceleration state, in which the engine is a cylinder deactivation engine capable of switching between all cylinder operation for operating all cylinders and cylinder deactivation operation for deactivating at least one or more cylinders. The cylinder deactivation operation is conducted during deceleration state of the vehicle to reduce pumping losses of the engine so that the regeneration efficiency of the motor is improved. The control device comprises an abnormality detection device which detects abnormality in the cylinder deactivation engine, and a motor output limiting device which limits the output of the motor in response to the detection of the abnormality.


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