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:
Aug. 28, 1984
Filed:
May. 29, 1981
Hideo Hamada, Yokosuka, JP;
Yoshiro Morimoto, Yokosuka, JP;
Masaaki Suga, Yokohama, JP;
Masaaki Futagi, Yokosuka, JP;
Tadashi Suzuki, Yokosuka, JP;
Nissan Motor Company, Limited, Yokohama, JP;
Abstract
A control system for an engine of an automotive vehicle equipped with a lock-up type automatic transmission. The engine control system comprises a gear ratio determinating circuit and a vehicle speed detector for determining whether the automotive vehicle is operating in a predetermined lock-up range or not and a logic circuit for generating a lock-up signal that indicates that the automotive vehicle is operating within said predetermined lock-up range, whereupon exhaust gas recirculation and ignition timing are varied from their ordinary patterns to a pattern suitable for operation of the engine with the torque converter operating in a lock-up state.