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:
Mar. 30, 1993
Filed:
Nov. 05, 1991
Yukinobu Nishimura, Himeji, JP;
Kazuyori Katayama, Himeji, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A cruise control apparatus for a vehicle is effective to prevent hunting in the vehicle speed and resultant shocks which are apt to occur when the vehicle is travelling on a down slope under cruise control. A cruise control unit is adapted to be actuated by a driver of the vehicle for automatically controlling the opening degree of a throttle valve so that the speed of the vehicle is maintained at a predetermined target speed. A fuel control unit controls the fuel supply to the vehicle engine such that the fuel supply is cut off when the throttle valve is moved to a fully closed or idling position thereof with the number of revolutions per minute of the engine being equal to or greater than a predetermined value during cruise control. In one aspect, the fuel cut-off is cancelled when the speed of the vehicle decreases below a predetermined lower limit for the target speed during cruise control, and at the same time, the cruise control is temporarily interrupted for a predetermined length of time. In another aspect, the cut-off of the fuel supply by the fuel control unit is inhibited when the vehicle is travelling under cruise control.