Anti-blocking and/or wheel slip regulating system

US5070459A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Anton Van Zanten · Ditzingen, DE
• Wolf-Dieter Ruf · Schwäbisch Gmünd, DE
• Friedrich Kost · Kornwestheim, DE
• Karl-Josef Weiss · Bensheim, DE

Key dates

• Filing date: Apr 16, 1990
• Grant date: Dec 3, 1991
• Expiry date: Apr 16, 2010

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60T2270/211
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A anti-lock brake control system and/or a drive slip control system is described the slippage value of which for the brake pressure control is to be set close to the maximum of the .mu.-slippage curve, on the stable branch, that is, during the control. For this purpose, a short pressure pulse is generated in a phase where the pressure is maintained constant and the difference of the reference speed and the wheel speed is integrated (J) over a time T.sub.I and the maximum of the difference (D.sub.max) is determined in this time. The two values are divided ##EQU1## and the resulting values is used for determining the slippage.