Patent · US Active

Method for influencing soot deposits on sensors

US8035404B2 · kind B2 · utility

11Cited by

7References

8Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Frank Schnell · Gerlingen, DE
Lutz Dorfmueller · Gerlingen, DE
Ralf Schmidt · Nuremberg, DE
Sabine Roesch · Ditzingen, DE
Helmut Marx · Würzburg, DE
Henrik Schittenhelm · Stuttgart, DE

Key dates

Filing date	Apr 15, 2005
Grant date	Oct 11, 2011
Priority date	—
Expiry date	Jan 7, 2027

Classification

Technology area (CPC G)Physics
CPC primaryG01N15/0656
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method is described for controlling the soot deposition on sensors. A sensor element is provided, which includes a first electrode and a second electrode. Different measuring voltages U1 and U2 can be applied to the sensor element. During a first time period t1, the sensor element is operated at a higher voltage U1 until a triggering threshold AP of the sensor element is exceeded, while it is operated at a voltage U2, which is different from higher voltage U1, U2 being lower than voltage U1, during a second time period t2.

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