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:
Dec. 20, 2016
Filed:
Dec. 18, 2014
Denso Corporation, Kariya, Aichi-pref., JP;
Tatsuya Fujita, Obu, JP;
Mitsuhiro Murata, Niwa-gun, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
An engine starting apparatus includes a starter and a starter control unit configured to control driving of the starter. The starter control unit operates a motor with a pinion engaged with a ring gear to thereby crank an engine, and de-engage the pinion from the ring gear or de-energize the motor to thereby terminate the cranking of the engine. A cranking time from when cranking of the engine is initiated to when a predetermined engine speed equal to or greater than 450 rpm is reached is equal to or less than an acceptable limit of cranking time that does not provide, to a user of a vehicle, noticeable discomfort caused by cranking noise generated during the cranking of the engine.