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. 24, 1996
Filed:
May. 04, 1995
Reinhard Resch, Stuttgart, DE;
Mercedes-Benz AG, , DE;
Abstract
In a brake-pressure control device for a road vehicle having a hydraulic two-circuit brake system with front-axle/rear-axle brake circuit distribution, an anti-lock brake system (ABS) operates according to the recirculation principle and a device for dynamic movement control (FDR) requires the wheel brakes to be individually capable of automatic activation. The recirculation pumps of the ABS are utilized as pressure sources. The recirculation pump of the rear-axle brake circuit is constructed as a self-priming pump while the recirculation pump of the front-axle brake circuit is constructed as a non-self priming pump. The minimum pressure which is required for the input supply of the non-self priming pump is produced by a precharging cylinder which is connected between the main cylinder of the brake system and the ABS hydraulic unit. This precharging cylinder has a hydraulic or pneumatic drive cylinder for whose pressure supply a built-in hydraulic or pneumatic pressure source, e.g. the permanently driven supply pump of a ride leveller or the pressure supply pump of a pneumatic suspension, is used.