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:
Sep. 12, 2000
Filed:
Nov. 28, 1997
Kunio Nakaguro, Kanagawa, JP;
Takashi Kimura, Kanagawa, JP;
Nissan Motor Co., Ltd., Kanagawa, JP;
Abstract
In a vehicular control apparatus having a bare-chip mounting type vehicular electronic unit and an associated vehicular actuator, a predetermined higher bias voltage (approximately 7 volts higher than a normal bias voltage of approximately 5 volts) is supplied to a micro controller of the electronic unit so as to impose a high stress on the micro controller under a burn-in condition such that the micro controller is exposed to a burn-in high temperature for a burn-in time duration. After the above-described burn-in process, an external initial failure testing purpose program is transmitted to a serial communication circuit of the micro controller so that the micro controller executes instructions of the external initial failure testing purpose program to evaluate an operation of the micro controller to determine whether an initial failure in the micro controller occurs.