Continental Automotive Gmbh

Siemens Aktiengesellschaft

Vitesco Technologies Gmbh

Schaeffler Technologies Ag & Co .kg

Gerhard Eser

Hong Zhang

Erwin Achleitner

Martin Cwielong

Manuel Dillinger

Sebastian Brettner

Markus Feulner

Matthias Delp

Gerhard Schopp

Jürgen Dingl

Wolfgang Moser

Dirk Heinitz

Florian Kleiner

Stefan Seyfferth

Martin Reisinger

Paul Rodatz

Gerhard Haft

Thomas Burkhardt

Wolfgang Mai

Michael Henn

Jens Pache

Sebastian Viehöver

Reza Azadeh

Christian Weber

Josef Kainz

Sirko Schlegel

Andreas Läufer

Silviu Soptica

Steffen Gessner

Stefan Klöckner

Christof Schmidt

Markus Dietrich

Sushman Dinka-Honnappa

Bernhard Klingseis

Frank Widmann

Sebastian Pötzel

Eugen Bernarding

Ganizani Master

Torsten Geiss

Simon Message

Martin Wiest

Balaji Jayaraman

Mitchell Koupal

A method for monitoring an oil flow, generated by an oil pump, in an oil cooling circuit of a thermal management system, includes: arranging a first pressure sensor at a first point in the cooling circuit; arranging a second pressure sensor at a second point in the oil cooling circuit; determining pressure difference values based on recorded pressures; and comparing the pressure difference values with a predeterminable comparison value for the pressure difference so as to check for a fault.

Method for monitoring an oil flow in an oil cooling circuit

An arrangement for pressure monitoring within a battery housing of a battery system. The arrangement includes a first power supply path and a pressure measuring. The pressure measuring unit is electrically connected to the first power supply path. The arrangement also includes a pressure-sensitive mechanical switching unit arranged within the battery housing and electrically connected, in series with the pressure measuring unit, to the first power supply path. The switching unit switches to an electrically conductive switching state when the pressure within the battery housing exceeds a predefined pressure threshold and establishes a supply of power to the pressure measuring unit via the first power supply path, and switches to an electrically blocking switching state when the pressure within the battery housing falls below the pressure threshold and interrupts the supply of power to the pressure measuring unit via the first power supply path.

Arrangement for pressure monitoring within a battery housing, battery management device, and battery system with an arrangement

A thermal management system having a battery and an electric motor, the temperature of both of which is to be controlled, wherein the electric motor is oil-cooled. The thermal management system has a monitoring system for monitoring an oil flow generated by an oil pump, in an oil cooling circuit including the electric motor. The monitoring system in this case has a first pressure sensor at a first point of the oil cooling circuit and a second pressure sensor at a second point of the oil cooling circuit and/or a speed sensor assigned to the oil pump. Also proposed is a vehicle having a thermal management system of this type.

Thermal management system and vehicle

A thermal management system for use in a vehicle in which the coolant flows of the two cooling circuits can be mixed with each other as needed by a multi-way valve at an interface between a first cooling circuit for a battery and a second cooling circuit for an electric motor for driving the vehicle. A vehicle with such a thermal management system is also proposed, as well as a method for operating two cooling circuits of such a thermal management system.

Thermal management system, vehicle and method for operating two cooling circuits of a thermal management system

A thermal management system for a vehicle and a vehicle having a thermal management system, the thermal management system having a first coolant circuit for a battery and a second coolant circuit for an electric motor for driving the vehicle. The two coolant circuits can be operated in series or in parallel by a multi-way valve. The thermal management system further includes an oil cooling circuit for additionally cooling the electric motor, wherein the oil cooling circuit is thermally connected to the second coolant circuit via a heat exchanger.

A thermal management system, for use in a vehicle, is provided in which coolant flows two cooling circuits can be mixed with each other as needed by a multi-way valve at an interface between a first cooling circuit for a battery and a second cooling circuit for an electric motor for driving the vehicle.

Thermal management system vehicle and method for operating two cooling circuits of a thermal management system

A thermal management system for use in a vehicle includes a first cooling circuit for cooling a battery; and a second cooling circuit for cooling an electric motor configured to drive the vehicle. The first and second cooling circuits are connected to each other: (a) in series by a multi-way valve in a first mode of the thermal management system and in a first valve position of the multi-way valve, or (b) in parallel in a second mode of the thermal management system and in a second valve position of the multi-way valve. In a third mode of the thermal management system and in a third valve position, the multi-way valve is configured to take up an intermediate position in which coolant flows of the first and second cooling circuits are mixed with each other as needed.

A system for detecting dry running of a pump includes an inlet device to an intake device of the pump for taking in an electrically conductive liquid, and an electrical resistance structure () arranged in the inlet device. The electrical resistance structure has a variable resistance value, dependent on wetting with the electrically conductive liquid.

System for detecting dry running of a pump

In order to realize temperature control of a battery in a simplified manner, a control module having a coolant control valve, a coolant temperature sensor and a coolant pump is provided. The coolant control valve, the coolant temperature sensor and the coolant pump are integrally assembled to form the control module.

Control module for the temperature control of a battery

The disclosed embodiments relate to a device for operating a tank ventilation system of an internal combustion engine. This device has a fuel tank, an activated carbon filter for collecting and buffering fuel vapors escaping from the fuel tank, a purge air pump and a control unit. The outlet of the purge air pump is connected to the intake tract of the internal combustion engine via a first tank venting valve and connected to the exhaust tract of the internal combustion engine via a second tank venting valve.

Device for operating a tank ventilation system of an internal combustion engine

Various embodiments include a method comprising: determining a torque output of each cylinder resulting from a fuel injection into the cylinder; determining a difference in the respective torque; comparing the difference in the respective torque output with a threshold; if the difference exceeds the threshold, changing the injection mass for at least one cylinder based on the difference; determining a further torque output of the cylinder resulting from the injection of the changed injection mass; determining whether the further torque output corresponds to the changed injection mass; if the further torque output lies outside a predetermined tolerance range for a corresponding injection mass, setting the injection mass to be injected to the original value; and changing the injection time in at least the one of the at least two cylinders.

Method and device for operating an internal combustion engine

Various embodiments include a method for operating an internal combustion engine comprising: determining a torque output of each cylinder resulting from a fuel injection; determining a difference in the respective torque output; comparing the difference with a predetermined threshold; determining a respective injection mass; determining a difference in the respective injection masses; comparing the difference with a threshold; if the differences exceed the threshold, determining whether the respective torque outputs correspond to the associated injection mass; and if the respective torque outputs lie outside a predetermined tolerance range for a respective corresponding injection mass, changing an injection time in at least one of the at least two cylinders.

Various embodiments include method comprising: determining a torque of each cylinder resulting from an injection; determining a difference in the respective torque output; determining a progression of a pressure in one of the cylinders within a cycle; determining a progression of the crankshaft speed within the cycle; determining a time interval between a maximum the pressure and a subsequent maximum of the speed within the cycle; comparing the difference in the torque outputs with a threshold; if the difference exceeds the threshold, determining a progression of the crankshaft speed for each of the cylinders within a respective cycle and determining the respective maxima; determining a respective time of the maxima within the associated cylinder cycle; determining a difference between the respective maxima; and if the difference is greater than a predetermined threshold, changing an injection time in one of the cylinders based on the determined time interval.

Various embodiments include a method for controlling an internal combustion engine comprising: determining a speed of the internal combustion engine; determining a cylinder wall temperature of a combustion cylinder of the internal combustion engine; selecting an injection mode based at least in part on the speed and the cylinder wall temperature; and actuating a fuel injector associated with the combustion cylinder based on the selected injection mode.

Controlling fuel injection in an internal combustion engine

A method for determining an amount of energy released in the working cycle of an internal combustion engine cylinder includes: (a) recording a time curve of the rotational speed of the engine crankshaft using tooth timings measured using a toothed sensor disc, (b) assigning each tooth timing to a working cycle of a selected cylinder, (c) determining a cylinder-specific average value from the tooth timings assigned to the selected cylinder, (d) determining cylinder-specific tooth timing deviations from the determined cylinder-specific average value, for the tooth timings assigned to each working cycle of the selected cylinder, (e) determining a cylinder-specific characteristic tooth timing by summing the determined tooth timing deviations, and (f) specifying the amount of energy released in the working cycle of the selected cylinder as a function of the determined cylinder-specific characteristic tooth timing, the amount of energy released being indirectly proportional to the determined cylinder-specific characteristic tooth timing.

Growing community of inventors

Hemau, Germany

Gerhard Eser