Robert Boschgmbh

Joachim Berger

Rainer Strohmaier

Rene Schenk

Manfred Birk

Ulrich Gerstung

Wolfgang Fischer

Gerhard Engel

Hermann Kull

Manfred Strohrmann

Dieter Seher

Franz Raichle

Klaus Bleuel

Bernard Kamp

Wolf Wessel

Andreas Blumenstock

Helmut Laufer

Stefan Poledna

Werner Fischer

Klaus Winkler

Ralf Schmidt

Detlef Heimann

Bernhard Kamp

Juergen Biester

Wilfried Sautter

Thomas Kuttner

Norbert Breuer

Martin Grosser

Ralf Wirth

Peter Rupp

Michael Kirschner

Roland Gronenberg

Dietbert Schoenfelder

Reinhard Fenchel

Karl-Franz Reinhart

Walter Bauer

Karl-Heinz Schmidt

Detlev Straub

Dieter Hall

Felix Forster

Martin Hartz

Werner Zimmerman

Wolfgang Bittinger

Kai-Achim Baldenhofer

Wolfgang Dittrich

Thomas Grau

Kai Baldenhofer

A sensor for detecting particles in a gas flow, in particular soot particles in an exhaust gas flow, includes at least two measuring electrodes, which are positioned on a substrate made of an insulating material. To protect the measuring electrodes, they are covered by a protective layer.

Sensor for detecting particles

In a method for monitoring an exhaust gas limiting value of an internal combustion engine using an engine controller, the engine controller has at least one exhaust gas sensor, and an error signal is output when the exhaust gas limiting value is exceeded. If the emissions predicted for the present driving state are ascertained with the aid of an engine model and compared to the signal of the exhaust gas sensor or a comparison value for the emission derived therefrom, the prescribed driving cycle may be taken into account when certifying a limiting value monitoring system and a defective system may be reliably recognized in practical operation even in atypical driving states without resulting in erroneous triggering of error signals.

Monitoring of exhaust gas limiting values

A method and a device for analyzing a signal from an ion current sensor of an internal combustion engine. At least one torque quantity characterizing the torque produced by the internal combustion engine is determined on the basis of a signal from the ion current sensor.

Method and device for analyzing a signal from an ion current sensor in an internal combustion engine

A method and a device are described for evaluating a signal from an ionic current sensor of an internal combustion engine. Based on a signal from the ion current sensor, at least one quantity characterizing the combustion in the internal combustion engine is determined. At least one quantity characterizing a combustion start and/or a combustion quality is determined by conditioning the signal.

Method and device for evaluating an ion current sensor signal in an internal combustion engine

A method and a device for controlling an internal combustion engine. A temperature variable and a pressure variable are detected by sensors. On the basis of at least the temperature variable and the pressure variable, a first quantity is determined that characterizes the air quantity, which is supplied to the internal combustion engine. A further sensor detects a second quantity that characterizes the air quantity, which is supplied to the internal combustion engine. The second quantity is adapted by the first quantity. Furthermore, the first quantity is used as a substitute value for the second quantity.

Method and device for controlling an internal combustion engine

The invention is directed to a control of an air/fuel ratio during operation of an internal combustion engine having a catalytic converter and an NOx sensor mounted behind the catalytic converter as seen in flow direction. The engine is operated alternately in a first phase with a mixture which is deficient in fuel compared to the stoichiometric mixture composition and, in a second phase, with a stoichiometric or rich mixture composition. The triggering of the change between the two phases is influenced by the signal of the NOx sensor.

Method and arrangement for operating an internal combustion engine in combination with an NOx storage catalytic converter and an NOx sensor

A method and a device for controlling an internal combustion engine. An actuator serves to influence the quantity of exhaust gas recirculated. A loop controller preselects the quantity of exhaust gas to be recirculated on the basis of a setpoint and an actual value which characterizes the quantity of exhaust gas recirculated. A first measured value is determined in a first position (open) of the actuator, and a second measured value is determined in a second position (closed) of the actuator, with the actual value or a correction value being preselectable on the basis of the difference between the two measured values.

In the method for monitoring the sensor device (,), which supplies an analog output signal over a bidirectional output line (,) to an analysis unit (,) for evaluation, a predetermined test signal is applied to a sensor output in a monitoring phase, which is received in the analysis unit (,) and evaluated. In order to initiate the monitoring phase at any arbitrary time without the need of an additional connecting line between the sensor device and the analysis unit, a trigger signal of a predetermined trigger level is transmitted by the analysis unit (,) to the sensor device (,) over the output line (,) and is detected in the sensor device, which generates the predetermined test signal and transmits it to the analysis unit (,) over the bidirectional connecting line (,). A sensor device and connected analysis unit designed to perform this method are also described.

Method of monitoring a sensor device and sensor device and analysis unit with monitoring means

A system for controlling a motor vehicle includes a first device for determining control data required for controlling the motor vehicle. A second device monitors the first device. The first device determines second data on the basis of first data, pursuant to a test function. The second device determines third data on the basis of the first data, pursuant to the same test function. The first and/or the second device recognizes an error state relevant to safety, dependent upon a comparison between the second data and the third data.

System for controlling a motor vehicle

In a system and method for controlling a solenoid-valve-controlled fuel-metering device, in particular for a diesel gasoline engine, the duration of delivery is determined based upon the speed value during the preceding metering-in operation.

System and method for controlling a solenoid-valve-controlled

The invention relates to a system for controlling an internal combustion engine (100), in particular a self-igniting internal combustion engine. A signal (U) for triggering a performance-determining final controlling element (105) is stored in a characteristics map (110) for each of a corresponding fuel quantity (QK) to be injected into the engine. The signal values stored in the characteristics map (110) are then corrected in dependence upon a predetermined relationship of a signal corresponding to the value for the fuel quantity (QK) to be injected and a signal corresponding to the value for the actually injected fuel quantity (QKI).

System for controlling an internal combustion engine

The invention is directed to a system for electronically controlling (open loop and/or closed loop) an internal combustion engine of a motor vehicle. By means of at least one measuring unit at least one signal is generated representing the position of a power-determining component and the measuring unit comprises several sensors. The measuring unit is associated with a power-determining component of the vehicle such as a throttle flap or the control rod and/or accelerator pedal. The sensors are checked with respect to their functional capability by comparing the signal values generated by the sensors to each other with respect to a pregiven tolerance range. When a fault of one or more of the sensors is detected, then that sensor or those sensors which is or are unaffected can be determined.

System for controlling an internal combustion engine in a motor vehicle

Supervisory system for a vehicle accelerator pedal travel transducer

Control of supercharged internal combustion engines

The switching on and switching off of an air conditioner is primarily determined by signals which are supplied by a temperature controller. However, operating conditions are present wherein the temperature controller supplies the signal 'on' but that the operation of the air conditioner is nonetheless unwanted so that the torque of the engine can be available for driving the vehicle. The fulfillment of special conditions for switching off and again switching on the air conditioner are therefore investigated when temperature switch-on conditions are fulfilled. According to the method of the invention, the air conditioner is switched off when the accelerator pedal position exceeds a switch-off threshold value and the difference between the actual permissible full-load quantity and the actual correct idle quantity is less than a predetermined minimum difference. The air conditioner is again switched on when either the accelerator pedal position lies below a switch-on threshold value for at least a predetermined time duration or when the engine speed exceeds an rpm threshold value.

Method of switching an air conditioner of a motor vehicle

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Winterbach, Germany

Joachim Berger