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:
Sep. 08, 1992
Filed:
Oct. 30, 1990
Yoshiyuki Utsumi, Himeji, JP;
Kazuyori Katayama, Himeji, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A cruise control apparatus for a vehicle is disclosed which is free from influences resulting from variations in the ground voltage level as well as variations in the voltage in the power supply so as to effectively prevent malfunctions of the apparatus and hence enhance reliability in operation. To this end, the cruise control apparatus includes cruise control switches such as a cancellation switch, a set/coast switch, a resume/acceleration switch, etc., which are provided on the steering wheel of the vehicle and which are connected in parallel with each other. The cruise control switches have an output terminal and an input terminal, the switches being selectively operated to change the output voltage at the output terminal so as to provide a plurality of command signals for cruise control. A control unit is connected to the output terminal of the cruise control switches through the intermediary of a slip ring for performing a cruise control operation in response to the cruise control command signals. A power supply is commonly connected to the input terminal of the cruise control switches and the control unit.