公开(公告)号：EP2106544B1

公开(公告)日：2015-02-25

申请号：EP07848019.1

申请日：2007-12-10

申请人： Robert Bosch GmbH

发明人： REINHARDT, Goetz ,  HETZNECKER, Alexander ,  RUNGE, Henrico ,  REINSHAGEN, Holger ,  DIEHL, Lothar ,  THOMAE, Andreas

IPC分类号： G01N27/407

CPC分类号： G01N27/4071

公开(公告)号：EP2411795A1

公开(公告)日：2012-02-01

申请号：EP10712717.7

申请日：2010-02-18

申请人： Robert Bosch GmbH

发明人： KRUSE, Peer ,  SCHNEIDER, Jens ,  DIEHL, Lothar

IPC分类号： G01N27/406 ,  G01N27/407

CPC分类号： G01N27/4065 ,  G01N27/4073

摘要： The invention relates to a method for operating a sensor element for determining the concentration of gaseous components in the exhaust gas of internal combustion engines, in particular a lambda probe. Said method is characterised by the following steps: the internal resistance of the sensor element is determined and the control point of the sensor element is adapted to said internal resistance.

公开(公告)号：EP1581806B1

公开(公告)日：2011-11-16

申请号：EP03785563.2

申请日：2003-12-12

申请人： ROBERT BOSCH GMBH

发明人： WIEDENMANN, Hans-Martin ,  DIEHL, Lothar ,  MOSER, Thomas ,  RODEWALD, Stefan

IPC分类号： G01N27/407 ,  G01N33/00

CPC分类号： G01N27/4072

摘要： The invention relates to a sensor element (10) which is used to determine a property of a test gas, preferably the concentration of a gas component in the test gas. The sensor element (10) comprises at least one electrode (42, 43) which is placed on a solid electrolyte (21, 22) and which is connected to the measuring gas by means of a diffusion path wherein a diffusion barrier (51, 151) is arranged. A means (52, 152) is arranged in the area on the side of the diffusion barrier (51, 151) opposite the electrode (42, 43). Said means reduces the diffusion cross section in the region on the side of the diffusion barrier (51, 151) facing away from the electrode (42, 43).

公开(公告)号：EP2002252A1

公开(公告)日：2008-12-17

申请号：EP07712176.2

申请日：2007-02-08

申请人： Robert Bosch GmbH

发明人： WAHL, Thomas ,  DIEHL, Lothar ,  LIEDTKE, Ralf ,  SPIES, Philipp

IPC分类号： G01N27/406

CPC分类号： G01N27/4067

摘要： The present invention relates to a sensor element for determining a gas component in a measurement gas, said sensor element comprising a first electrode and a second electrode, a solid electrolyte which is arranged between the electrodes, a heater (3) having a heating element (4), and an insulation (5) which surrounds the heating element, characterized in that the heating element (4) has a meandering profile with a first outer heating region (41), a second outer heating region (42), a first inner heating region (43) and a second inner heating region (44).

公开(公告)号：EP1203229B1

公开(公告)日：2008-09-10

申请号：EP01953119.3

申请日：2001-06-27

申请人： ROBERT BOSCH GMBH

发明人： GRUENWALD, Werner ,  DIEHL, Lothar

IPC分类号： G01N27/417

CPC分类号： G01N27/417

摘要： The invention relates to an electrochemical sensor element (10) for determining the oxygen concentration in the exhaust gases of internal combustion engines. Said sensor element (10) comprises a pump cell, which has a pump electrode (52) that is located on the surface of the sensor element (10) facing the gas mixture, and a gas measuring electrode (50) positioned in a gas measuring zone (40). The gas mixture enters the gas measuring zone (40) via a diffusion resistance element (31). In addition, the sensor element (10) contains a reference electrode (51) located in a gas reference zone (41). An additional diffusion resistance element (32) is provided between the gas measuring zone (40) and the gas reference zone (41).

公开(公告)号：EP1145255B1

公开(公告)日：2006-10-18

申请号：EP00947809.0

申请日：2000-06-15

申请人： ROBERT BOSCH GMBH

发明人： HEIMANN, Detlef ,  REINSCH, Bernd ,  BISCHOFF, Alexander ,  WERNER, Juergen ,  DIEHL, Lothar

IPC分类号： H01C7/04

CPC分类号： H05B3/141 ,  G01N27/4067 ,  H05B3/12

摘要： The invention relates to a heat conductor, especially for a sensor for detecting at least one gas component in the exhaust gases of internal combustion engines. Said heat conductor consists of a cermet that contains platinum and at least one metal oxide. The invention further relates to a method for producing a heat conductor for a sensor for detecting an oxygen concentration, especially in the exhaust gases of internal combustion engines. A mass that makes up the heat conductor and that comprises a platinum powder and a metal oxide powder is applied on a ceramic film and is sintered. According to the invention, at least two further precious metals are added to the cermet.

公开(公告)号：EP1583958A1

公开(公告)日：2005-10-12

申请号：EP03770879.9

申请日：2003-09-24

申请人： ROBERT BOSCH GMBH

发明人： SCHNAIBEL, Eberhard ,  JUNGINGER, Erich ,  KORING, Andreas ,  DEIBERT, Ruediger ,  BRAUN, Harry ,  DIEHL, Lothar

IPC分类号： G01N27/417

CPC分类号： G01N27/4175

摘要： Disclosed is a circuit arrangement for operating a gas sensor (10) comprising a reference gas space (18) within which an electrode (19) is disposed. A pumped flow of reference gas (35) is fed to said electrode (19) in order to maintain the concentration of the reference gas. A diagnostic array (39, 43, 44) determines a change in the reference gas concentration by modifying the pumped reference flow (35) and doing a time-related evaluation of the gas sensor (10) signal (38).

公开(公告)号：EP1514099A1

公开(公告)日：2005-03-16

申请号：EP03735294.5

申请日：2003-05-12

申请人： ROBERT BOSCH GMBH

发明人： DIEHL, Lothar ,  FRIESE, Karl-Heinz

IPC分类号： G01N27/417

CPC分类号： G01N27/4175

摘要： The invention relates to a method for calibrating a sensor element for a limiting current probe, in particular for a planar broadband lambda probe, which comprises a pump cell with two pump electrodes (18,19), an inner pump electrode (18) being screened by a porous diffusion barrier (21). To adjust the diffusion resistance of the diffusion barrier (21) to a default value in a highly accurate manner, the thickness of the diffusion barrier (21) is calculated during the production of the sensor element in such a way that said diffusion barrier (21) has a lower diffusion resistance value than the default value, whilst maintaining the production tolerances. In the finished sensor element, a material charge is introduced into the diffusion barrier (21) by sublimation by means of a precursor gas, thus increasing the diffusion resistance to obtain the default value.

公开(公告)号：EP1269175A1

公开(公告)日：2003-01-02

申请号：EP01921191.1

申请日：2001-03-15

申请人： ROBERT BOSCH GMBH

发明人： STAHL, Roland ,  HOETZEL, Gerhard ,  NEUMANN, Harald ,  RIEGEL, Johann ,  DIEHL, Lothar

IPC分类号： G01N27/407 ,  G01N27/417

CPC分类号： G01N27/419 ,  Y10T29/49002

摘要： A sensor element for the determination of gas component concentrations in exhaust gases from internal combustion engines is disclosed. The above comprises at least one gas measuring chamber (13) and at least one gas entry opening (17), by means of which the gas mixture may be introduced into the above gas measuring chamber (13) and at least one diffusion barrier (12), arranged between the gas entry opening (17) and the gas measuring chamber (13). The diffusion barrier (12) comprises at least one layer (14, 14a, 14b), made from catalytically active material, for adjusting the balance of the gas components.

公开(公告)号：EP1155311A1

公开(公告)日：2001-11-21

申请号：EP00987180.7

申请日：2000-11-23

申请人： ROBERT BOSCH GMBH

发明人： DIEHL, Lothar

IPC分类号： G01N27/407

CPC分类号： G01N27/4075

摘要： The invention relates to an electrochemical measuring sensor for determining the gas concentration of a measuring gas, comprising a sensor element which has at least one electrode arranged on an ion conducting solid electrolyte (50), whereto an electrode feed line (51) leads. The electrode feed line (51) consists of one material which, when compared to the material of the electrode (50), has a significantly smaller or zero ion conductivity and/or low ohm value.