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:
Feb. 20, 2001
Filed:
Jul. 28, 1998
Jae Sun Park, Incheon, KR;
Daewoo Heavy Industries Ltd., Incheon, KR;
Abstract
A self-diagnostic method is provided capable of testing condition of various components for a forklift truck selectively, displaying the result test codes collectively on a display after completing the test, and initiating a quick test mode during a run mode by simply manipulating an accelerator pedal and a direction lever of the forklift truck. The method comprises the steps of: providing a mode selector with a diagnostic mode and a run mode, a fuse, a key switch, an accelerator, a direction switch having forward and reverse positions, a tilt switch, contactor coils and a controller; initiating a main routine by the controller; reading a signal from the mode selector to decide which mode is selected from the diagnostic mode and the run mode; identifying that the fuse is removed and that the key switch is turned on when the diagnostic mode is selected; checking condition of the switches and the accelerator selectively according to an inputted diagnostic command in the order of priority to produce error codes in case of failure detection; saving the error codes occurred; and displaying the error codes collectively when the tilt switch is turned on.