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:
Jan. 02, 1979
Filed:
Feb. 22, 1977
Jerry J Tomecek, Wixom, MI (US);
Other;
Abstract
A system for adjusting and maintaining cruising speed for automobiles employs electronic circuitry connected to the engine ignition system for generating a voltage proportional to engine speed. A manually actuated switch allows the vehicle operator to choose a cruising speed by storing the speed related signal in a memory. A comparator then receives the stored signal and the instantaneous speed signal and generates an error signal to control a bi-directional drive connected to the vehicle accelerator pedal through a tension member. A solenoid actuated clutch in the drive system for the tension member is energized when the operator sets the cruising speed and is deenergized when the vehicle is braked, when the engine speed falls below a predetermined value, or when the engine ignition or the speed control are turned off. Operator controlled switches allow the vehicle speed to be gradually increased or decreased until a desired speed is attained and the signal for that speed stored in the control, and another switch allows the operator to temporarily accelerate or decelerate the vehicle and then resume a previously stored speed.