Control logic for an anti-lock vehicle brake system

US5253931A · kind A · utility

Assignee

• WABCO Westinghouse Fahrzeugbremsen GmbH · DE

Inventors

• Harald Koster · Hannover, DE
• Helmut Pannbacker · Hemmingen, DE
• Henrich Riedemann · Wattenscheid, DE

Key dates

• Filing date: Aug 21, 1991
• Grant date: Oct 19, 1993
• Expiry date: Aug 21, 2011

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60T2210/16
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

An automatic control logic for an anti-lock protected vehicle braking plants is provided for all-terrain operation. In this case, the standard automatic control logic for road operation is switched, by the driver with an all-terrain switch (13) to a special automatic control logic for all-terrain operation. The special automatic control logic generates time periods, during which a short-term blocking of the automatically controlled wheels (12) is intentionally permitted. The locking time periods have a time duration of about 240 ms. The braking distance of the vehicle in cross-country terrain is shortened while a sufficient cornering force remains based on the all-terrain automatic control logic.