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:
Oct. 27, 1998
Filed:
Jul. 26, 1996
Shinnosuke Hayashi, Nukata-gun, JP;
Hiroshi Shibata, Kariya, JP;
Nippondenso Co., Ltd., Kariya, JP;
Abstract
An engine control program is not overwritten when an engine of a vehicle is in operation even if a memory writer sends an engine write request to an engine controller. When an operator stops the engine and the memory writer again requests to overwrite the engine control program, the engine controller receives a write control program from the memory writer and executes the same. After that, the engine controller starts a new engine control program after its CPU is reset. Therefore, since the engine is at a stop during the overwriting of the engine control program, there will be no unexpected operations in the mechanism of the vehicle even though the control program and data are changed.