Daimler Chrysler Ag

Daimler-Benz Ag

Daimler Ag

Jens Von Gregory

Reiner Bachschmid

Heiko Sass

Peter Moser

Michael Wilhelm Haas

Roland Lütze

Christoph Burckhardt

Ulrich Springer

Mehmet Haseki

Clemens Bentele

Marco Braun

Alexander Müller

Michael Reusch

Thomas Stutte

Mario Erdmann

Frederich Schulz

In a method for controlling the heat in an internal combustion engine for a vehicle with a coolant circuit and actuable devices for influencing the heat balance of the internal combustion engine, wherein a coolant temperature and further operating parameters of the internal combustion engine are recorded, the actuable devices are operated as a function of the coolant temperature and the further operating parameters of the internal combustion engine in such a manner that an output value for determining a control variable is provided by means of a basic characteristic diagram as a function of the rotational speed and the load on the internal combustion engine, and this control value is corrected by means of a controller as a function of the coolant temperature and/or the further operating parameters.

Method for controlling the heat in an automotive internal combustion engine

An apparatus and a process are provided for determining a temperature at a predetermined location in an internal combustion engine. The temperature at a bridge between two exhaust valves of an internal combustion engine can be measured only with great effort during operation. It is proposed to measure a temperature at a location in the internal combustion engine that is easier to access and to determine the bridge temperature with the aid of a computation model on the basis of the engine rpm, the quantity of injected fuel, the temperature of the charge air, and the coolant temperature.

Apparatus and method for indirectly determining a temperature at a predetermined location in an internal combustion engine

In a cooling circuit for an internal combustion engine including a cylinder block with a cylinder head wherein the cooling circuit includes a coolant pump with a coolant duct extending from the pump to the engine for supplying coolant thereto, the coolant duct includes a valve arranged between the coolant pump and the engine for controlling the flow of coolant through the coolant duct to the engine.

Cooling circuit for an internal combustion engine

An apparatus for regulating the coolant circuit for an internal combustion engine is equipped with a radiator and a heating system heat exchanger, a water pump, and a thermostat valve which makes possible two circuits in the warmup phase of the engine or at low engine temperatures, one circuit being provided for cooling the engine via a bypass line, and a second circuit being provided to the heating system heat exchanger via a heating system line. A differential pressure valve, regulated as a function of engine speed, is arranged in the bypass line, the bypass line being blocked, and all of the coolant being passed through the heating system line, in the warmup phase or in the phase with a low engine temperature when the speed of the engine is low; and the differential pressure valve opening and uncovering the bypass line at higher engine speeds, a quantitative distribution of the coolant occurring via the bypass line and the heating system line as a function of the design of the differential pressure valve.

Apparatus for regulating the coolant circuit for an internal combustion

Growing community of inventors

Remshalden, Germany

Jens Von Gregory