Robert Boschgmbh

Klaus Mueller

Heinz Siegel

Martin Oehler

Gunther Hohl

Kurt Herzog

Michael Klose

Bernhard Heugle

Hans-Jurgen Herderich

Dirk Samuelsen

Michael Friedow

Edgar Schmitt

Ernst-Dieter Schaefer

Rolf Reischl

Juergen Eckhardt

Ewald Huebl

Martin Jordan

Manfred Himmelsbach

Norbert Alaze

Klaus Joos

Wolfgang Maisch

Markus Amler

Thomas Frenz

Gerhard Wetzel

Winfried Langer

Stefan Wickert

Guenter Wolff

Torsten Handler

Wolfgang Ripper

Andreas Eichendorf

Torsten Richter

Wolfgang Kosak

Helmut Staib

Guenter Braun

Rolf Hummel

Ulf Pischke

Ralf Wirth

Reinhard Pfeufer

Frank Schumann

Roland Benzinger

Carsten Becker

Volker Schurr

Stefan Schneider

Juergen Gruber

Bernd Kudicke

Markus Thuersam

Jurgen Lander

Tom Doehring

Frank Barth

Volker Epple

Daniel Reisinger

A mouthpiece for a device for measuring analytes in exhaled air includes a gas path configured to convey exhaled air to the device and a film arranged so as to block the conveying of the exhaled air through the gas path. A system, in one embodiment, includes the mouthpiece and a device configured to measure analytes in the exhaled air. The mouthpiece is configured to be releasably connected to the device. The device includes a pressure sensor and, in one embodiment, a pump configured to pump air via the mouthpiece when connected to the device. The device is configured to be enabled to measure predefined analytes in the exhaled air when a pressure curve measured via the pressure sensor satisfies one or more predefined conditions.

Mouthpiece, system and method for enabling a measurement of analytes in exhaled air

A mouthpiece a device for measuring a parameter of respiratory air. The mouthpiece including an end edge of a wall of the mouthpiece, and the end edge is configured to delimit an opening for blowing respiratory air into the mouthpiece. An opening surface of the opening extends transversely with respect to a flow axis of respiratory air blown into the mouthpiece. A contour of the opening forms a D shape or a lens shape, seen in the direction of the flow axis. The opening is delimited by a first opening portion and by a second opening portion adjoining the first opening portion.

Mouthpiece for a device for measuring a parameter of respiratory air, and respiratory air meter

The present invention relates to an exhaust emission control apparatus for an internal combustion engine and a process for operating it. The exhaust emission control has a particulate filter for filtering particulate matter from the exhaust of the internal combustion engine, at least one temperature sensor for detecting the temperature of the exhaust, an evaluation unit for evaluating the detected temperature, particularly with regard to a particulate mass burned during a regeneration operation of the particulate filter. The temperature sensor is positioned inside the particulate filter.

Exhaust gas purification for internal combustion engines and method for operating the same

A method for monitoring a component situated in an exhaust gas region of an internal combustion engine in which the low pass behavior, which is determined by the heat capacity of the component, is monitored by a valuation of a measure of a first exhaust gas temperature, which appears upstream of the component that is to be monitored, and of a second exhaust gas temperature, which is recorded by a second temperature sensor downstream from the component to be monitored.

Method for monitoring a component situated in an exhaust gas region of an internal combustion engine

An arrangement for monitoring the drive of an actuator includes an output-stage component which includes a counter. With the aid of the counter, the switch-on time of the actuator is determined. The determined switch-on time is made available to the microcomputer for diagnostic purposes.

Method and arrangement for monitoring the drive of an actuator

In an internal combustion engine, the fuel enters at least one combustion chamber of the internal combustion engine via at least one fuel injection device. A piezoelectric actuator moves a valve element of the fuel injection device. The function of the piezoelectric actuator is monitored and a malfunction is detected. To minimize the risk of damage to the internal combustion engine in the event of a malfunction of the piezoelectric actuator, the fuel mass flow to the fuel injection device is reduced if a malfunction of the piezoelectric actuator is detected.

Method and control and regulating device for operating an internal combustion engine with piezoelectrically actuated fuel injection valves

A method and device for triggering a solenoid valve for injecting fuel into an internal combustion engine is described. The triggering phase of the solenoid valve is subdivided into a pull-up phase and a holding phase. During the pull-up phase, a valve needle of the solenoid valve is caused to open by a first current intensity flowing through a magnetic coil of the solenoid valve. During the holding phase, the valve needle is held in the open state by a second, lower current intensity flowing through the magnetic coil. At least once at the beginning of the pull-up phase, a booster phase is activated during which a pulse-shaped booster current from a booster capacitor charged to a high voltage flows through the magnetic coil. During the triggering phase of the solenoid valve, a plurality of booster pulses are activated in succession, whose time position within the triggering phase is freely selectable.

Method and device for triggering a fuel injector

Hydraulic unit for a vehicle brake system

A circuit arrangement for executing a reset, in which controlled resetting of a functional computer and a safety module takes place. A reset stage is able to coerce both the functional computer and the safety module into a reset state, while all output stages are switched off for all reset states. The functional computer and the safety module are connected by a serial interface to continually monitor each other and can mutually reset one another in the case of a fault.

Circuit arrangement for executing a reset

Electromagnetically actuated valve, in particular for slip-controlled

Hydraulic unit for traction-controlled motor vehicle brake systems

Electromagetically actuated valve for slip-controlled hydraulic brake

Electromagentically actuated valve for slip-controlled hydraulic brake

A known electromagnetically actuatable valve has a tubular housing sleeve, a through opening radially penetrating the housing sleeve, and inside the housing sleeve, a valve body having a valve seat and an associated movable valve closing member, and a throttle, which comprises a throttle body and a throttle insert built into it having a throttle restriction, which is embodied as a throttle bore. The throttle body is slipped on like a cap over an open end of the housing sleeve. The throttle of this kind, embodied in a complex manner, is expensive and demands an inordinate amount of installation space. To reduce expense and save installation space, the throttle body along with its throttle insert is omitted and the function of the throttle bore is taken on by the through opening, the through opening is embodied as narrow opening in accordance with the throttle function to be produced. The valve can be used in antilock devices of hydraulic brake systems for motor vehicles.

Electromagnetically actuatable valve

Circuit provides maximum current to an electric motor for a hydraulic pump in a brake system for a brief time interval after the motor is switched on, and thereafter limits the current to a lower value which corresponds to the torque necessary for generating the pressure required in the system.

Electric motor-driven hydraulic pump

Growing community of inventors

Tamm, Germany

Klaus Mueller