Electronically controlled brake effort proportioning system

US5246276A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Peter Pajonk · Beilstein, DE
• Wolf-Dieter Jonner · Freising, DE

Key dates

• Filing date: Sep 20, 1991
• Grant date: Sep 21, 1993
• Expiry date: Sep 20, 2011

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S303/04
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

Brake force proportioning system for a vehicle includes a two-way valve in the line between a diagonally connected front and rear wheel. A controller opens the valve continuously in a first region of brake pressure so that the brake force proportioning follows a fixed proportioning characteristic. Outside this region the valve is opened in pulses so that the proportioning follows an ideal characteristic curve. If the controller fails, a pressure limiting valve takes the place of the two-way valve and effects a pressure distribution according to a characteristic parallel to the fixed slope characteristic.