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:
Mar. 24, 2015
Filed:
Apr. 06, 2010
Mitsuhiro Murata, Niwa-gun, JP;
Hideya Notani, Kariya, JP;
Shinji Usami, Okazaki, JP;
Mikio Saito, Mizuho, JP;
Yasuyuki Yoshida, Chita-gun, JP;
Mitsuhiro Murata, Niwa-gun, JP;
Hideya Notani, Kariya, JP;
Shinji Usami, Okazaki, JP;
Mikio Saito, Mizuho, JP;
Yasuyuki Yoshida, Chita-gun, JP;
Denso Corporation, Kariya, JP;
Abstract
An engine start system which may be employed in automotive idle stop systems. To start an engine, the system brings a pinion gear into engagement with a ring gear coupled to the engine and turns on an electric motor to rotate the ring gear through the pinion gear to crank the engine. When it is requested to start the engine during deceleration of the engine before stop thereof, the system thrusts the pinion into engagement with the ring gear and then turns on the motor to rotate the pinion gear, in other words, delays the activation of the motor until after the pinion gear has engaged the ring gear. This minimizes mechanical impact or noise arising from the engagement of the pinion gear with the ring gear and improves the reliability in engagement with the ring gear during the deceleration of the engine and durability of the system.