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. 09, 1979
Filed:
Oct. 07, 1976
Heinz Allerdist, Bad Homburg, DE;
VDO Adolf Schindling AG, Frankfurt am Main, DE;
Abstract
An apparatus for controlling the traveling speed of a motor vehicle with an electrical control unit acted upon by a speed dependent signal, which unit compares the then present actual speed with a desired speed fed into a storage memory unit, and upon a deviation of the actual speed from the desired speed, a deviation signal dependent on the magnitude of the deviation is transmitted to a control stage, the latter influencing the ratio of the fuel-air mixture which is fed to the vehicle motor, as well as a manual operatively switchable circuit for acceleration of the vehicle to the desired driving speed stored in the storage memory unit. A differentiating stage is provided an input which is fed with the speed dependent signal. The output signal of the differentiating unit influences the deviation signal directly or indirectly in the sense of a decrease (compared to a deviation signal were the differentiating unit absent). Means for the additional time dependent variation of the output signal of the differentiating unit are provided of such type that with increasing time from the moment of turning on the manually operative switchable circuit, the output signal of the differentiating unit changes in the sense of increasing the acceleration.