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:
Jan. 06, 2004

Filed:

May. 23, 2002
Applicant:
Inventors:

Takahiro Souki, Handa, JP;

Akira Kato, Anjo, JP;

Masaru Kamiya, Toyoake, JP;

Keisuke Tani, Kariya, JP;

Masahiko Osada, Okazaki, JP;

Assignee:

Denso Corporation, Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02N 1/700 ;
U.S. Cl.
CPC ...
F02N 1/700 ;
Abstract

An engine-starting apparatus includes an electric motor and an overrunning clutch that transmits a rotational torque of the electric motor to an internal combustion engine. A coupling speed for re-coupling the clutch for re-cranking the engine while it is still rotating by the inertia is set to a point where an inertial speed of the engine becomes equal to or a little higher than an inertial speed of the electric motor. The electric motor is switched on again when its speed decreases to the coupling speed or lower. In this manner, shocks and noises generated in the re-coupling of the clutch are avoided, and the engine can be smoothly re-cranked while it is still rotating by its inertia.


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