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:
Nov. 07, 1989
Filed:
Mar. 17, 1988
Minoru Tamura, Kanagawa, JP;
Shinji Katayose, Tokyo, JP;
Terukiyo Murakami, Kanagawa, JP;
Hisashi Izumi, Kanagawa, JP;
Nissan Motor Company, Limited, Yokohama, JP;
Abstract
A system and method for electronically controlling a vehicular engine operation in accordance with an accelerator operation which can utilize a system for automatically controlling a vehicle speed to a set cruising speed are disclosed in which an operating variable selection mechanism which selects and outputs one of operating variables whose value is larger than the other operating variable, the operating variables being derived from an accelerator and from an actuator of the automatic vehicle cruise controlling system is installed. The selected operating variable of the operating variable selection mechanism is detected by means of an accelerator sensor. A throttle actuator is controlled for driving the throttle valve toward the direction in which an opening angle of the throttle valve coincides with a target opening angle which is defined by a detected variable of the accelerator sensor. A limiter provided for limiting a maximum opening angle of the throttle valve is driven by means of a limiter driving mechanism toward the angular position of the throttle valve corresponding to the selected operating variable of the operating variable selection mechanism and is held thereat against the driving force of the throttle actuator by means of a limiter holding mechanism.