Robert Boschgmbh

Paragon Ag

Gerald Hamm

Markus Niemann

Udo Kaess

Kurt Ingrisch

Thomas Hilberath

Volker Haller

Monika Scherer

Rolf Speicher

The quantitative determination of aging effects on motor oil is of great interest. According to a method, two variables of the motor oil are detected, one of the two variables being the viscosity and the other variable being the acid content of the motor oil. A first deviation of the detected first variable from a default value is then determined, and the second variable is estimated based on the deviation. By determining a second deviation of the estimated second variable from the detected second variable, the second deviation is determined as a measure of the aging effect on the motor oil. Since various aging effects influence the two variables in different manners, individual aging effects may be quantitatively determined in a targeted manner.

Method for the quantitative determination of an aging effect on motor oil

Disclosed is a gas measuring device which comprises compensation of disturbances and offers high accuracy of measurement immediately after being activated. Said gas measuring device is provided with a gas sensor () for generating a measuring signal (S) that depends on the gas concentration and can have a spurious component while a high-pass filter () having an adjustable limiting frequency is mounted downstream of said gas sensor (). The limiting frequency can be predefined according to the spurious component by means of a selection unit.

Gas measuring device and method with compensation of disturbances

Growing community of inventors

Herrenberg, Germany

Gerald Hamm