Patent · US Expired

Anti-skid brake control system which optimizes frequency of pressure build-up pulses

US5244258A · kind A · utility

4Cited by

7References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Anton Van Zanten · Ditzingen, DE
Friedrich Kost · Kornwestheim, DE
Wolf-Dieter Ruf · Schwäbisch Gmünd, DE

Key dates

Filing date	Jul 10, 1991
Grant date	Sep 14, 1993
Priority date	—
Expiry date	Jul 10, 2011

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60T8/17616
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A brake pressure controller increases the brake pressure in pulsed increments separated by pressure maintenance phases. During each maintenance phase, an evaluation circuit generates a stability criterion for each wheel which depends on the wheel acceleration and the slippage. If the criterion indicates that the wheel is stable, a pressure build-up pulse is generated. If the wheel is in dynamic transition, the pressure is maintained. If instability or limited stability is indicated, brake pressure is reduced. The system serves to maximize frequency of the build-up pulses for a stable running wheel.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.