Robert Boschgmbh

Michael Arndt

Gerd Lorenz

Christian Krummel

Maximilian Sauer

Frank Fischer

Kurt Weiblen

Jiri Marek

Bernhard Jakoby

Ronny Ludwig

Horst Muenzel

Juergen Hoetzel

Rolf-Juergen Recknagel

Markus Niemann

Pascal Kocher

Michael Bauer

Alexander Graf

Michael Saettler

Thomas Sperlich

Isolde Simon

Stefan Helzel

Juergen Kosok

Andreas Warzecha

Thomas Eisen

Uwe Schulte

Ronald Oomen

An air conditioning system for a vehicle and a method for operating the air conditioning system which at least has: an air conditioner having a fan, a recirculating air flap for setting a recirculating air operation or an external air operation, a gas sensor for measuring a gas concentration, in particular a COconcentration in a vehicle cabin, and outputting a measuring signal, and a control unit for receiving the measuring signal of the gas sensor, for setting a recirculating air position or an external air position of the recirculating air flap and for controlling the gas sensor, the control unit switching the gas sensor into different operating modes in recirculating air operation than in external air operation.

Air conditioning system having a gas sensor for a vehicle and a method for operating an air conditioning system of this type

A capacitive fill level sensor for determining a fill level of a liquid is described. Two electrodes are provided having a plastic sheathing and a capacitance measuring device for detecting the electrical capacitance between the electrodes. An estimator device is used for estimating a fill level of a liquid between the electrodes based on the detected electrical capacitance, taking into account different dielectric constants for sections of the plastic sheathing in the liquid and outside of the liquid.

Capacitive fill level sensor and method for estimating a fill level

A device for detecting radiation signals and a device for measuring the concentration of a substance are described, a first detector and a second detector being provided on a first chip, and a first filter and a second filter being provided on a second chip, the first chip and the second chip being connected to one another in hermetically sealed fashion.

Device for detecting and device for measuring the concentration of a substance

An infrared source and a gas sensor, a first layer and a second layer effecting bandpass filter characteristics for an operating frequency range.

Infra-red source and gas sensor

A device and a method for measuring at least one parameter of particles in a fluid, the device having a radiation source and a radiation sensor, the device having a fluid region that is in contact with the fluid; the radiation source being provided for the emission of measuring radiation according to a first direction onto the fluid region, the radiation sensor being provided for the detection of a measuring radiation reflected away from the fluid region in a second direction; furthermore, the radiation sensor having a plurality of sensor elements; and the spectral sensitivity of different sensor elements being developed differently for a wavelength-sensitive detection of the reflected measuring radiation.

Device and method for measuring at least one parameter of particles in a fluid

A micromechanical thermal-conductivity sensor is provided which includes a thermally insulated diaphragm formed by a recess in a base plate exhibiting poor thermal conductivity. At least one heating element is applied on the diaphragm, at least one temperature-dependent electrical resistor is applied on the diaphragm for measuring the temperature of the diaphragm, as well as at least one further temperature-dependent electrical resistor is applied outside of the diaphragm on the base plate for measuring the ambient temperature. On one or both of its sides, the diaphragm is covered by a porous cover plate permitting gas exchange by diffusion, a cavity being left open between the diaphragm and the porous cover plate.

Micromechanical thermal-conductivity sensor having a porous cover

A device to detect the presence of a living being in a motor vehicle includes

Device and method to detect presence in a motor vehicle

A device for generating infrared radiation includes at least one heating element and at least one radiating element for irradiating the infrared radiation. The heating element is a micromechanical, two-dimensional heater structure. The heating element may be applied on the radiating element using hybrid technology such that the radiation element has at least one side facing the heating element and at least one side facing away. The radiating element may be ceramic substrate.

Micromechanical infrared source

A thermal sensor is provided, which is distinguished in that it includes means for removing a deposit on a sensing element of the sensor. In addition, means for detecting the deposit may be provided. The means for removing the deposit are realized by a trigger circuit for the sensing element, which brings about heating of the sensing element. In addition, a reference sensing element may be utilized as well, which is used both for indirect heating and for checking the sensing element. Due to the use of a catalytic layer on the sensing element, a deposit may be removed at relatively low temperatures.

Thermal sensor

The invention relates to an air conditioner, in particular for use in motor vehicles, with a cooling circuit and a ventilation system, wherein the cooling circuit features an evaporator/heat exchanger () that is arranged in the ventilation system, and wherein a gas sensor () is provided in the ventilation system downstream from the evaporator/heat exchanger () to detect the rates of a refrigerant of the evaporator/heat exchanger () of the air conditioner in the conveyed air-conditioned air. It is provided that the gas sensor () is arranged at a narrow point () and/or in an area of turbulent flow of an air guidance channel () of the ventilation system. The invention also relates to a method to operate such an air conditioner.

Air conditioner, in particular for use in motor vehicles, and a method for its operation

A sensor module having a heating structure and a sensor element is described. The heating structure surrounds the sensor element so that heat dissipation through a frame is largely prevented. This yields a greater measuring accuracy of the sensor module. In particular, interfering influences due to a temperature dissipation through the mount frame are thereby prevented.

Sensor module having a sensor element surrounded by a heating element

A invention relates to a device for detecting incident radiation in the infrared range, including at least one chip assembly for detecting infrared radiation, at least one bonding wire, which starts out from the chip assembly and runs through metallic terminals to the exterior of the housing, as well as passivation material, which is distributed in such a manner, that the at least one bonding wire is, in essence, completely enclosed by the passivation material, and a surface region of the chip assembly facing the incident, infrared radiation is not enclosed by the passivation material.

Chip assembly in a premold housing

A method of determining the level of a medium in a container by generating a constant magnetic field in the container, exciting an elongated sensor element to longitudinal oscillations, the sensor element being secured on one end in the container and containing a magnetostrictive material, measuring the resonant frequency of the sensor element, or the damping of the longitudinal oscillation, by means of periodically varying magnetization of the sensor element in the constant magnetic field, and determining the fill level from the resonant frequency or from the damping of the longitudinal oscillations.

Method for determining a level, and level measuring device

A sensor for seat-occupancy detection is located in a seat and configured as a passive sensor. This then allows a wireless querying of the sensor using a high-frequency pulse. The sensor is configured as an acoustic surface-wave component or as an LC resonant circuit.

Growing community of inventors

Reutlingen, Germany

Michael Arndt