Max-planck-gesellschaft Zur F&#xf6;rderung Der Wissenschaften E. V.

Bayerische Motoren Werke Aktiengesellschaft

Other

Behr Gmbh Co. Kg

Pnsensor Gmbh

Bayerische Motoren Werke Aktiengensellschaft

Mahle Behr Gmbh & Co. Kg

Rainer Richter

Gerhard Lutz

Florian Schopper

Lothar Struder

Peter Lechner

Alexander Bähr

Johannes Treis

Jelena Ninkovic

Josef Kemmer

Wolfram Enke

Andreas Klemm

Ladislav Andricek

Georg Chekaiban

Wolfgang Hofmann

Martin Kaspar

Gerrit Wölk

Lothar Strueder

Andreas Eder

Wolfgang Kramer

Boris Mazar

Arnoldt Rehm

Ralf Bochert

Johann Tonhauser

Gunter Schroeter

Ulrich Wirth

Michael Schreiner

Carsten Schwarz

Stefan Muench

Arnold Rehm

Stefan Rueth

Marko Kovacic

Thomas Gebhart

Alexander Baehr

Holger Brandt

Stefan Münch

Gunter Schröter

The invention relates to a DEPFET comprising: a semiconductor substrate () of a first conduction type, which has a first main surface () and a second main surface (), which are opposite one another; a source terminal region () of a second conduction type on the first main surface (); a drain terminal region () of a second conduction type; a channel region (), which is arranged between the source terminal region () and the drain terminal region (); a gate electrode (), which is separated from the channel region () by a gate insulator (); a rear activation region () of a second conduction type, which is formed on the second main surface (); and a substrate doping increase region () of a first conduction type, which is formed at least under the source terminal region () and under the channel region (), the substrate doping increase region () having a signal charge control region () of the first conduction type below the gate electrode (), in which signal charge control region the effective doping dose has a higher value than at other points of the substrate doping increase region () below the gate electrode.

DEPFET transistor

An avalanche photodiode array for detecting electromagnetic radiation comprises: a semiconductor substrate () having a first main surface () and a second main surface (), which are opposite one another, a plurality of n-doped anode regions () formed at the first main surface () and separated from one another by pixel isolation regions (), a p-doped cathode region () arranged at the second main surface () opposite the anode regions, a drift region () between the plurality of anode regions () and the cathode region (), and a p-doped multiplication layer () arranged below the plurality of anode regions () and below the pixel isolation regions (), and is characterized by an n-doped field reduction layer () arranged below the plurality of anode regions () and the pixel isolation regions () and above the multiplication layer ().

Avalanche photodiode array

DEPFET transistor and method of manufacturing a DEPFET transistor

To ventilate a heat management system of an internal combustion engine, in which coolants circulate in several coolant circuits, connected inlets of a rotary valve may be opened and closed in a predetermined sequence, in order to ventilate one or more of the coolant circuits in the direction of the compensation tank, by means of at least one ventilation circuit which is in fluid connection with a coolant compensation tank. The rotary valve may be controlled by means of a control unit, wherein a non-connected inlet of the rotary valve is in fluid connection with the coolant compensation tank.

Method and device for ventilating a heat management system of an internal combustion engine

A method is provided for operating a cooling system of an internal combustion engine, which cooling system has a controllable rotary slide valve with at least one switched inlet or outlet. The movement of the rotary slide valve into a plurality of switching positions, which each correspond with a cooling system state, is monitored. In accordance with an improper functional state of the rotary slide valve and a current switching position of the rotary slide valve, an operating state of the internal combustion engine is changed to an emergency operation state. A protection system in the cooling system carries out the method and includes a thermal management system, which receives and processes coolant temperatures, and a control unit of a controllable rotary slide valve having a position detector, which can detect a current switching position of the switchable rotary slide valve, wherein the thermal management system is connected to the control unit of the rotary slide valve.

Method for operating a cooling system of an internal combustion engine and protection system in a cooling system

A coolant circuit is provided for an internal combustion engine having a compression machine for intake air. The coolant circuit includes a high-temperature circuit and a low temperature circuit. The high-temperature circuit is provided in order to cool the internal combustion engine by way of a coolant radiator and a first coolant pump arranged in the high-temperature circuit. The low-temperature circuit is provided with a second coolant pump in order to cool the intake air compressed by the compression machine by way of an intercooler and in order to cool a coolant of a coolant circuit in a condenser. The high-temperature circuit and the low-temperature circuit are cooling circuits which are separated from each other. The thermal base load of the low-temperature circuit is reduced by this design, whereby the pressure level in the coolant circuit can be reduced resulting positively in a reduction of the energy consumption.

Coolant circuit for an internal combustion engine

A heat management system for an internal combustion engine has an engine cooling circuit, a main cooling circuit that has a main cooler, a heating circuit that has a heating heat exchanger, a coolant pump that moves coolant through the circuits and a rotary slide valve that has at least one switched and at least one non-switched inlet, such that the heating return flow leads into a switchable inlet of the rotary slide valve.

Heat management system for an internal combustion engine

The invention concerns a detector arrangement for detection of radiation, in particular particle radiation or electromagnetic radiation, with a semi-conductor detector with several pixels for detection of the radiation. It is proposed that the individual pixels each have a first subpixel () and a second subpixel (). The semi-conductor detector can be switched between a first collection state, in which the first subpixel () is sensitive and the second subpixel () is insensitive so that radiation-generated signal charge carriers are substantially collected only in the first subpixel (), and a second collection state in which the second subpixel () is sensitive and the first subpixel () is insensitive so that the radiation-generated signal charge carriers are collected substantially only in the second subpixel (). The invention furthermore concerns a corresponding operating method and detector arrangements based on the same concept with a higher number of subpixels per pixel.

Detector arrangement and corresponding operating method wherein the detector is a semi-conductor detector which is switchable between collection states with selected subpixel sensitivity

An exhaust gas system for an internal combustion engine has a thermoelectric power generator with a hot side and a cold side. The hot side is arranged on the exhaust gas system and is heatable by exhaust gas of the internal combustion engine. A first heat exchanger having a first thermal conductivity is arranged between the hot side and the exhaust gas flow. At least a second thermoelectric power generator is arranged on the exhaust gas system and has a second heat exchanger with a thermal conductivity that is different from the first thermal conductivity. The arrangement of thermoelectric power generators can generate electric power over a significantly wider operating point range of the internal combustion engine.

Exhaust gas system for an internal combustion engine

A cooling system is provided for a thermoelectric power generator and that is arranged in an exhaust gas line of an internal combustion engine for generating electric power while utilizing thermal energy of the exhaust gas. The thermoelectric power generator has its own coolant circuit, which also serves to raise the temperature of the components of the internal combustion engine, the chassis, and/or the transmission or serves to heat the passenger compartment. This offers the added utility gained from a faster temperature rise of transmission lubricants and lubricants of the internal combustion engine, as well as from heating the passenger compartment and the rear axle differential and, thus, offers a reduction of carbon dioxide emissions (CO).

Cooling system for a thermoelectric power generator

The invention relates to an avalanche photodiode () for detecting radiation, including a semiconductor substrate (), an upper diode layer (), an oppositely doped, laterally delimited lower diode layer (), an avalanche region situated between the upper diode layer () and the lower diode layer (), wherein the radiation to be detected triggers an avalanche breakdown in the avalanche region, and also including a contact-making layer () at the underside () of the semiconductor substrate (), a laterally delimited quenching resistance layer () arranged in the semiconductor substrate () between the lower diode layer () and the contact-making layer (), wherein the quenching resistance layer () quenches the radiation-generated avalanche breakdown in the avalanche region, and also including a depletion electrode () arranged laterally alongside the laterally delimited lower diode layer (), such that the depletion electrode () depletes the semiconductor substrate () laterally alongside the laterally delimited lower diode layer (), while the quenching resistance layer () is screened from the depletion electrode () by the lower diode layer () and is therefore not depleted.

Avalanche photodiode

A motor vehicle having a unit, particularly a drive assembly, which is operated by a fuel that is cryogenically stored in a vehicle tank, is provided, in which fuel is heated by a heat exchange with a warmer medium. The fuel taken from the vehicle tank comes in contact with the cold side of a thermoelectric generator, particularly in the form of a Seebeck element, in order to generate electric current for the electric power supply of the vehicle. The warm side of the thermoelectric generator is preferably acted upon by the warmer medium also used for the heat exchange with the cold fuel, in which case the thermoelectric generator may be integrated in a heat exchanger for the heat exchange between the fuel taken and the warmer medium.

Motor vehicle having a unit operated by a cryogenically stored fuel

The invention relates to a heat exchanger, especially for motor vehicles, comprising a soldered heat exchanger network made of flat pipes () and corrugated ribs (). A liquid and/or vaporous-type medium can flow through the flat tubes () and air can circulate around the corrugated ribs. One corrugated rib respectively comprises two surfaces () which are arranged in an essentially parallel manner in relation to each other and which are connected respectively by an arch-shaped piece () which is soldered to a flat pipe, said arch-shaped piece comprising three sections () which have different curvatures.

Flat pipe-shaped heat exchanger

A vehicle has a heat-emitting component and a thermoelectric generator, which has a heat-absorbing component thermally coupled with the heat-emitting component, and which generates electric energy from the temperature gradient between the heat-absorbing element and a heat sink. The thermoelectric generator is arranged directly on the heat-emitting component and is connected thereto in a thermally conductive manner.

Vehicle having a thermoelectric generator

Growing community of inventors

Munich, Germany

Rainer Richter