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:
Nov. 09, 1976
Filed:
Jul. 11, 1975
Christian Tanguy, Frepillon, FR;
Guy Marouby, Neuilly, FR;
Societe Anonyme D.B.A., Paris, FR;
Abstract
An electronic antiskid control unit for an adaptive braking system of the speed reference type wherein a signal for controlling decay of pressure is generated in response to comparison of the wheel speed signal with another signal. In a first phase, the wheel speed signal is compared with a reference signal derived from the wheel speed signal for generating the decay signal as long as the wheel speed reference signal is greater than wheel speed signal. At the end of this first phase, the wheel speed and speed reference signals have the same value and the speed reference signal is overridden by another increasing signal for comparison with the wheel speed signal thereby increasing duration of the decay. The other signal has three portions and is derived from a base signal having an exponential characteristic. At the end of the third portion, corresponding to intersection of the other signal with the wheel speed signal, the decay signal is extinguished.