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:
Feb. 27, 2001
Filed:
Oct. 27, 1999
Abstract
A hydraulic brake system with electronic anti-lock control contains, as essential components, a pedal actuated brake pressure transducer (,), electrically actuated inlet and outlet valves (EV,to EV,, AV,to AV,), wheel sensors (S,to S,) and an electronic control circuit (,). The brake pressure transducer (,) is equipped with one or more path sensors (,), for the direct or indirect determination of the pedal path (S). Interdependent with the current driving conditions, the brake situation and the pedal path (S), the anti-lock control is switched from a standard control mode into a safety control mode, which essentially permits only a brake pressure increase in the front wheels and a brake pressure decrease in the rear wheels during an anti-lock control procedure. A limit value (S,) of the pedal advancement is determined interdependent with the driving conditions and the brake situation, and upon exceeding such a switch over takes place into the safety control mode.