Method, computer program and device for measuring the injection quantity of injection nozzles, especially for motor vehicles

US7000450B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Joachim Unger · Gerlingen, DE
• Wolfram Von Huelsen · Gerlingen, DE
• Hermann Bolle · Weingarten, DE
• Ralf Bindel · Bad Sobernheim, DE
• Ralf Haas · Remchingen, DE
• Dirk Wolf · Dortmund, DE

Key dates

• Filing date: Feb 1, 2002
• Grant date: Feb 21, 2006
• Expiry date: Sep 12, 2022

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02M65/001
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

In a method for measuring the injection quantity of injection systems, in particular for motor vehicles and in particular in production testing, an injection system injects a testing fluid into a measuring chamber. A detection device detects a movement of a piston, which at least partially defines the measuring chamber. This detection device generates a corresponding measurement signal. In order to increase the precision of the calculation of the injected testing fluid mass, the invention proposes that the pressure of the testing fluid in the measuring chamber be detected and that the measurement signal be processed taking into account the detected pressure.