Patent · US Expired

Anti-locking control system

US5249852A · kind A · utility

4Cited by

10References

14Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Claus Beyer · Schwieberdingen, DE
Peter Dominke · Bietigheim-Bissingen, DE
Eberhard Sonntag · Stuttgart, DE

Key dates

Filing date	Jun 14, 1991
Grant date	Oct 5, 1993
Priority date	—
Expiry date	Jun 14, 2011

Classification

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

Abstract

An anti-lock brake system is described in which, when an instability limit IS is exceeded by an instability criterion K EQU K=aB+b.multidot.L+cIL+dV.sub.F (where a, b, c and d are constants and B is the relative wheel deceleration, L is the wheel slip and IL is the integral of the wheel slip and V.sub.F is the calculated vehicle deceleration, a pressure reduction pulse is produced, the width of which depends on the reduction time in the preceding cycle. This pulse also resets the integrator and the differentiator required for obtaining the wheel deceleration to 0. Between the pressure reduction pulses, pressure is held constant.

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