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:
Apr. 28, 1987
Filed:
Sep. 04, 1984
Robert L Anderson, Saline, MI (US);
Ford Motor Company, Dearborn, MI (US);
Abstract
An ignition diagnostic monitor detects ignition malfunction. A first monostable multivibrator is coupled to an ignition module to receive the ignition signal and maintain a first logic state for a predetermined first time constant after detecting an ignition signal. The monostable multivibrator maintains a second logic level state after passage of the predetermined time constant until detection of another ignition signal occurs. The second logic level indicates a missed ignition signal and an ignition fault. A control module is coupled to the ignition module and the monostable multivibrator and receives a fault detection signal from the monostable multivibrator.