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. 17, 1990
Filed:
Dec. 31, 1986
Toshiaki Hara, Zama, JP;
Nissan Motor Company, Limited, Yokohama, JP;
Abstract
An apparatus for controlling a throttle valve to retain the speed of running of an automotive vehicle within an insensible range having a predetermined width defined by upper and lower limits. The apparatus includes a first sensor sensitive to vehicle speed for providing a vehicle speed signal indicative of the sensed speed of running of the vehicle and a second sensor sensitive to throttle valve position for providing a throttle-valve position signal indicative of the sensed position of the throttle valve. The apparatus also includes a control circuit coupled to the first and second sensors for increasing a predetermined degree and narrowing the predetermined width of therefor the insensible range in response to the vehicle speed signal having a period within a predetermined range and a peak-to-peak value greater than a predetermined value and the throttle-valve position signal having a period within a predetermined range and a peak-to-peak value greater than a predetermined value. The control circuit moves the throttle valve the predetermined degree in a closing direction in response to the sensed vehicle speed greater than the upper limit and moves the throttle valve the predetermined degree in an opening direction in response to the sensed vehicle speed less than the lower limit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile