Control arrangement for an antiskid hydraulic braking system of a vehicle

US4492413A · kind A · utility

Assignee

• ITT Industries · US

Inventors

• Juan Belart · Walldorf, DE
• Jochen Burgdorf · Mühlheim am Main, DE
• Dieter Kircher · Frankfurt am Main, DE
• Lutz Weise · Mainz, DE

Key dates

• Filing date: Oct 28, 1981
• Grant date: Jan 8, 1985
• Expiry date: Oct 28, 2001

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60T8/446
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A control arrangement for use in a hydraulic braking system equipped with an antiskid control device and an auxiliary energy source and including a master cylinder device which is operated in dependence on the travel of a brake pedal, includes normally open separating valves in braking conduits to the wheel brake actuating cylinders, which close during antiskid control operation, provided that auxiliary energy is available. An auxiliary supply conduit supplies the auxiliary energy to the wheel brake actuating cylinders so that the latter can be operated in a dynamic manner. A normally closed return valve is interposed in the return conduit from the respective wheel brake actuating cylinders and can be opened, either directly or indirectly, by the auxiliary energy during the antiskid control operation, so that the pressure from the wheel brake operating cylinder to be controlled can be relieved to the low-pressure supply reservoir while rendering static operation of the wheel brake actuating cylinders possible in its normal closed position assumed when no antiskid control action is needed. The pressure of the auxiliary energy hydraulic fluid can be generated by a hydraulic pump whic…