EP 3443207 B1 20200506 - METHOD FOR CONTROLLING A PRESSURE IN A CRANKCASE
Title (en)
METHOD FOR CONTROLLING A PRESSURE IN A CRANKCASE
Title (de)
VERFAHREN ZUR REGELUNG EINES DRUCKES IN EINEM KURBELGEHÄUSE
Title (fr)
PROCÉDÉ DE RÉGULATION D'UNE PRESSION DANS UN CARTER DE VILEBREQUIN
Publication
Application
Priority
- DE 102016206285 A 20160414
- EP 2017056105 W 20170315
Abstract (en)
[origin: WO2017178183A1] The invention relates to a method for controlling a pressure (26) to a target pressure (27) in a crankcase (14) of an internal combustion engine (10) by means of a crankcase venting device (18), wherein the crankcase venting device (18) comprises a suction line (20), by means of which blow-by gas (16) can be removed from the crankcase (14), a pumping device (22) driven by an electric drive (28), and an oil mist separating device (24), and wherein the pumping device (22) and the oil mist separating device (24) are arranged in the suction line (20). In order to render a pressure-measuring device in the crankcase unnecessary, a rotational speed of the electric drive (28), according to the invention, is controlled in a closed-loop and/or open-loop manner, the rotational speed of the electric drive (28) is used as a manipulated variable (41) for the control of the pressure (26) in the crankcase (14), and at least one performance parameter of the electric drive (28) is evaluated in order to infer the pressure (26) in the crankcase (14).
IPC 8 full level
F01M 11/10 (2006.01); F01M 13/00 (2006.01); F01M 13/02 (2006.01)
CPC (source: EP US)
F01M 11/10 (2013.01 - EP US); F01M 13/00 (2013.01 - EP US); F01M 13/0011 (2013.01 - US); F01M 13/02 (2013.01 - US); F01M 2011/1446 (2013.01 - US); F01M 2013/0005 (2013.01 - EP US); F01M 2013/026 (2013.01 - EP US); F02D 2250/08 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2017178183 A1 20171019; CN 109072738 A 20181221; CN 109072738 B 20191119; DE 102016206285 A1 20171019; EP 3443207 A1 20190220; EP 3443207 B1 20200506; JP 2019510923 A 20190418; JP 6533347 B2 20190619; US 10544718 B2 20200128; US 2019211721 A1 20190711
DOCDB simple family (application)
EP 2017056105 W 20170315; CN 201780023100 A 20170315; DE 102016206285 A 20160414; EP 17710917 A 20170315; JP 2018551828 A 20170315; US 201716093379 A 20170315