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AssigneeRobert Bosch GmbH
InventorsThomas Fischer, Clemens Majer, Iris Hartung
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The invention relates to a method for determining the injection rate of an injection valve (1) using a mathematical model which is based on measurement values comprising the stroke (x) of a piston (3) that delimits a measurement chamber (2) during the injection of a test fluid (4) into the measurement chamber (2). The injection rate is corrected on the basis of an additional measurement value. According to the invention, the pressure (pa) in an adapter volume (5), via which the injection valve (1) is connected to the measurement chamber (2), is used as an additional measurement value for correcting the injection rate. The invention further relates to a device for determining the injection rate of an injection valve.
A method for determining an injection rate of an injection valve (1) using a mathematical model on which measured values which comprise a travel (x) of a piston (3) bounding a measuring chamber (2) during an injection of a test fluid (4) into the measuring chamber (2) are based, wherein a correction of the injection rate is carried out on the basis of a further measured value,
A device for determining an injection rate of an injection valve (1), comprising, a measuring chamber (2) which is bounded by a piston (3) and which is fluidly connected to the injection valve (1) during an injection of a test fluid into the measuring chamber (2), the measuring chamber (2) being connected to the injection valve (1) via an adapter volume (5) which is formed in an adapter (10) for receiving the injection valve (1), such that the test fluid can be injected into the measuring chamber (2) by the injection valve (1), the device also comprising a travel measuring device (11) for detecting a travel (x) of the piston (3) during the injection,
Dependencies are inferred from the claim text.