Patent · US Active

Method for recognizing the saturation point of a vacuum brake booster

US7832261B2 · kind B2 · utility

2Cited by

3References

12Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Frank Kaestner · Bietigheim-Bissingen, DE
Thomas Bruex · Sachsenheim, DE
Andreas Grimm · Bad Liebenzell, DE
Otmar Bussmann · Abstatt, DE

Key dates

Filing date	Jan 24, 2006
Grant date	Nov 16, 2010
Priority date	—
Expiry date	Feb 7, 2027

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60T8/442
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A device for determining the saturation point of a vacuum brake booster having a vacuum chamber and a working chamber that are separated from one another by a membrane. The reaching of the saturation point can be recognized simply and precisely if the vacuum prevailing in the vacuum chamber is measured using a pressure sensor, and the output signal of the pressure sensor is evaluated by an electronic evaluation system that calculates the saturation point using a mathematical function, taking into account only the pressure prevailing in the vacuum chamber.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.