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:
Jun. 18, 1985
Filed:
Jul. 15, 1983
Juan Belart, Walldorf, DE;
Jochen Burgdorf, Offenbach-Rumpenheim, DE;
Dieter Kircher, Frankfurt am Main, DE;
Hans-Wilhelm Bleckmann, Obermoerlen, DE;
Lutz Weise, Mainz, DE;
ITT Industries, Inc., New York, NY (US);
Abstract
To monitor and control hydraulic brake slip control devices supplied with energy from an external source and intended for use on motor vehicles equipped with several brake circuits, a check is kept on the fluid level in the reservoir holding the hydraulic fluid and on the pressure in the chambers supplied with the external energy. When the fluid level drops, which is detected by a reservoir level warning device, or when the pressure drops causing pressure warning switches to respond, the brake slip control will be only partially deactivated initially by halting the reduction in pressure in the static brake circuits and inhibiting the dynamic fluid flow into the static brake circuits. The dynamic brake circuit will continue to allow a controlled deceleration of the connected wheels. The partial deactivation will be initiated immediately or with a time delay or only if the error signals continue to be present beyond a predetermined period of time. Depending on the duration of the error signals or following the lapse of a predetermined period of time, the brake slip control will be deactivated fully or, if the error signals cease, the partial deactivation will be cancelled.