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. 04, 1989
Filed:
Oct. 09, 1986
Nippondenso Co., Ltd., Kariya, JP;
Abstract
Disclosed is a vehicle speed control system for controlling the intake air amount introduced into an engine of a vehicle in order to allow the vehicle to travel at a target speed. The intake air amount is controlled in accordance with the integration value of deviation of the vehicle speed from the target speed. The integration value is rest when the vehicle acceleration is terminated and the reset integration value is derived on the basis of the vehicle speed and throttle valve opening degree. The vehicle speed control system includes an integral-added optimal regulator which determines the feedback amount on the basis of an optimal feedback gain predetermined in accordance with a dynamic model of the system relating to the constant travelling speed of the vehicle.