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. 27, 2018
Filed:
Feb. 16, 2016
Mitsubishi Electric Corporation, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
An in-vehicle engine control apparatus allowing split injection frequency or split injection of fuel while preventing a driving switch element for fuel injecting electromagnetic coils and a boosting switch element for generating a boosted high voltage from being overheated. An operation control circuit portion has reference data of measured environmental temperature vs allowable engine rotational speed with a selected value of the split injection frequency being a parameter, and determines the selected value having, as an upper limit, a split injection frequency which makes the internal temperature of the boosting switch element or a rapidly exciting switch element a predetermined allowable limit value in association with the present environmental temperature detected by an average environmental temperature detection element in a case and the present engine rotational speed detected by an engine rotation sensor.