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:
May. 17, 2016
Filed:
Oct. 08, 2013
Denso Corporation, Kariya, Aichi-pref., JP;
Shinsuke Kawazu, Toyokawa, JP;
Yoshinori Yamaguchi, Kariya, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
An engine speed predicting system for a vehicle includes a first calculator, a second calculator, and a switch which may be realized by software. The first calculator calculates a predicted speed of an engine of the vehicle during forward rotation of the engine when speed of the engine is decreasing after fuel stops being burned in the engine. The second calculator calculates a predicted speed of the engine during reverse rotation of the output shaft of the engine. The switch serves to select one of the first calculator and the second calculator which is to be used in calculating the predicted speed of the engine depending upon whether the predicted speed lies during the forward rotation or during the reverse rotation of the output shaft of the engine. This ensures the accuracy in predicting the speed of the engine regardless of the direction of rotation of the engine.