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. 06, 1977
Filed:
Feb. 23, 1976
Gerald L Larson, Battle Creek, MI (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
An electronic digital control system for vehicle speed control of the type using a throttle servoactuator responsive to an electrical control signal. The control system includes a function switch which, when selectively actuated by the vehicle operator, causes the controller to index the sensed vehicle speed by a predetermined increment and accelerates the vehicle to said indexed speed. The controller regulates vehicle speed by repetitively calculating the parameters of a governing equation and providing a control signal in the form of a series of width modulated electrical pulses having the width thereof proportional to the sum of the parameters of the governing equation. The control system utilizes only a single counting means for registering vehicle speed and the desired set, or reference, speed.