Method for testing a vehicle power braking system

US10942090B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Kevin Wodrich · Zell am Harmersbach, DE
• Tim-Philipp Jesse · Sachsenheim, DE
• Daniel Frank · Sachsenheim, DE
• Peter Ziegler · Mainz, DE

Key dates

• Filing date: Jul 30, 2019
• Grant date: Mar 9, 2021
• Expiry date: Jul 30, 2039

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60T8/4081
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

To test a vehicle power braking system, a piston of a power brake pressure generator is displaced twice for a pressure build-up and in between back preferably by a longer distance. Extension of the piston travel during the second displacement is an indication of air in a cylinder of the power brake pressure generator due to an excessively low brake fluid level in a brake fluid reservoir.