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:
Jul. 14, 1992
Filed:
Aug. 10, 1990
Ikuo Musa, Himeji, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A vehicle engine diagnostic device equipped with a forcible load-controller for forcibly changing, during operation, the drive conditions of a desired one of a plurality of driven loads, such as fuel injectors. If that driven load is functioning normally, changing its drive conditions by the forcible load-controller causes the operating conditions of the associated control unit, i.e., of the main control section, to change accordingly; if that driven load or any of its associated devices are out of order, no change occurs in the operating conditions of the control unit. Thus, the diagnostic device makes it possible to diagnose even driven loads which are not equipped with sensors as well as the devices associated therewith.