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. 06, 1989
Filed:
Aug. 01, 1988
Reinhard Resch, Stuttgart, DE;
Daimler-Benz Aktiengesellschaft, Stuttgart, DE;
Abstract
In an antilocking ABS and propulsion ASR control system for a road vehicle, there is a brake pressure regulating member used for both antilocking ABS and for propulsion ASR control in which a hydraulic cylinder having a piston driven under valve controls defines an ABS control space, increasing when a drive pressure space of the cylinder is subjected to pressure, and an ASR outlet pressure space, decreasing when the drive pressure space of the hydraulic cylinder is subjected to pressure; and wherein, in normal braking, not subjected to ABS or ASR control, both spaces are connected to the brake circuit of the driven vehicle wheels. The control system is activated as a result of the valve control connection of an auxiliary pressure source to the drive pressure space of the hydraulic cylinder. The control mode is selected by means of a function control valve arrangement which, in the event of antilocking ABS control, connects the main brake line with only the ABS control space and, in the event of propulsion ASR control connects the main brake line with only the ASR outlet pressure space.