Inventor
RAFF LOTHAR
DE23 patents
Patents
23 patentsUS5267439ADec 7, 1993
Method and arrangement for checking the aging condition of a catalyzer
BOSCH GMBH ROBERT66 citations96
US4419190ADec 6, 1983
Method and apparatus to measure the operating temperature of solid electrolyte-type gas sensors
BOSCH GMBH ROBERT72 citations96
US6245205B1Jun 12, 2001
Diagnostic arrangement for a potentiometric electrically heated exhaust-gas probe for controlling combustion processes
BOSCH GMBH ROBERT24 citations92
US6073083AJun 6, 2000
Arrangement for determining the internal resistance of a lambda probe
BOSCH GMBH ROBERT34 citations92
US5438826AAug 8, 1995
Method for adjusting the fuel/air mixture for an internal combustion engine after an overrun phase of operation
BOSCH GMBH ROBERT26 citations92
US5224345AJul 6, 1993
Method and arrangement for lambda control
BOSCH GMBH ROBERT27 citations92
US4756885AJul 12, 1988
Measuring sensor for determining the oxygen content in gases
BOSCH GMBH ROBERT30 citations92
US5307625AMay 3, 1994
Method and arrangement for monitoring a lambda probe in an internal combustion engine
BOSCH GMBH ROBERT20 citations91
US5298865AMar 29, 1994
Connecting circuit for connecting a lambda probe to a control apparatus of an internal combustion engine and test method for said circuit
BOSCH GMBH ROBERT31 citations91
US6131446AOct 17, 2000
Method and arrangement for diagnosing an exhaust-gas probe
BOSCH GMBH ROBERT35 citations90
US6034610AMar 7, 2000
Method and arrangement for monitoring the operation of a gas probe
BOSCH GMBH ROBERT18 citations84
US7109721B2Sep 19, 2006
Method and electronic circuit for regenerating an electrical contact
BOSCH GMBH ROBERT13 citations82
US4463594AAug 7, 1984
Wide-range temperature operating system for combustion gas oxygen sensor, and method
BOSCH GMBH ROBERT25 citations82
US5140535AAug 18, 1992
Process, use of the same and apparatus for lambda value detection
BOSCH GMBH ROBERT20 citations81
US5167120ADec 1, 1992
Method of controlling the temperature of an exhaust gas probe
BOSCH GMBH ROBERT13 citations74
US4594984AJun 17, 1986
Regulation device for the mixture composition of an internal combustion engine
BOSCH GMBH ROBERT18 citations74
US5787867AAug 4, 1998
Lambda control method
BOSCH GMBH ROBERT14 citations73
US5203165AApr 20, 1993
Method for the lambda control of an internal combustion engine having a catalyzer
BOSCH GMBH ROBERT12 citations73
US5036819AAug 6, 1991
Control system for the air/fuel ratio of an internal combustion engine
BOSCH GMBH ROBERT9 citations73
US5291417AMar 1, 1994
Method and arrangement for determining the internal resistance of a lambda probe and for the closed-loop heating control with the aid of the internal resistance
BOSCH GMBH ROBERT10 citations72
US5586543ADec 24, 1996
Mixture controller for an internal combustion engine
BOSCH GMBH ROBERT4 citations62
US5209060AMay 11, 1993
Method for the continuous lambda control of an internal combustion engine having a catalyzer
BOSCH GMBH ROBERT5 citations62
US5291873AMar 8, 1994
Method and arrangement for determining a parameter of a lambda controller
BOSCH GMBH ROBERT1 citations52