Method and arrangement for controlling a charger
AssigneeRobert Bosch GmbH
InventorsMichael Nau, Michael Baeuerle, Carsten Reisinger, Guido Porten
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Abstract
The invention is directed to a method and an arrangement for controlling a charger (2000, 1000) which make possible a reduction of the load on the on-board electrical system especially during run-up of the charger (2000, 1000). A drive signal is formed which drives the charger (2000, 10000 1000). In dependence upon a first operating state of the engine (1005) which directly precedes an increase of the driver command torque, the drive signal is so formed that the charger (2000, 1000) increases its rpm already during this first operating state.
Claims18
A method for controlling a charger of an internal combustion engine, the method comprising the steps of:
- forming a drive signal for driving said charger with said charger being configured as an electric auxiliary charger;
- in dependence upon a first operating state of said engine which precedes an increase of a driver command torque, forming said drive signal in such a manner that said charger increases the rpm thereof already during said first operating state;
- and,
- increasing the rpm of said electric charger during said first operating state to a pregiven value and/or with a pregiven slope.
A method for controlling a charger of an internal combustion engine, the method comprising the steps of:
- forming a drive signal for driving said charger;
- and,
- in dependence upon a first operating state of said engine which precedes an increase of a driver command torque, forming said drive signal in such a manner that said charger increases the rpm thereof already during said first operating state wherein said first operating state is arrived at by releasing the brake pedal while a first driving stage is engaged.
A method for controlling a charger of an internal combustion engine, the method comprising the steps of:
- forming a drive signal for driving said charger;
- in dependence upon a first operating state of said engine which precedes an increase of a driver command torque, forming said drive signal in such a manner that said charger increases the rpm thereof already during said first operating state;
- and,
- wherein a first bypass, which is connected in parallel with said charger, is opened when there is an increase of the rpm during said first operating state.
A method for controlling a charger of an internal combustion engine, the method comprising the steps of:
- forming a drive signal for driving said charger;
- in dependence upon a first operating state of said engine which precedes an increase of a driver command torque, forming said drive signal in such a manner that said charger increases the rpm thereof already during said first operating state;
- wherein said charger is configured as an electric auxiliary charger;
- and, the rpm of said electric auxiliary charger is increased during said first operating state to a pregiven value and/or with a pregiven slope;
- and,
- wherein the pregiven value for the rpm is formed in dependence upon the formation of the rpm of said electric auxiliary charger when there is a preceding increase of said driver command torque.
A method for controlling a charger of an internal combustion engine, the method comprising the steps of:
- forming a drive signal for driving said charger;
- in dependence upon a first operating state of said engine which precedes an increase of a driver command torque, forming said drive signal in such a manner that said charger increases the rpm thereof already during said first operating state;
- and,
- wherein a torque reserve is formed during said first operating state.
A method for controlling a charger of an internal combustion engine, the method comprising the steps:
- forming a drive signal for driving said charger;
- in dependence upon a first operating state of said engine which precedes an increase of a driver command torque, forming said drive signal in such a manner that said charger increases the rpm thereof already during said first operating state;
- and,
- wherein said charger is configured as a mechanical auxiliary charger;
- during said first operating state, said drive signal is configured in such a manner that a shift clutch of said mechanical auxiliary charger is closed to a crankshaft of said engine.
An arrangement for controlling a charger of an internal combustion engine, the arrangement comprising:
- means for forming a drive signal for driving said charger with said charger being configured as an electric auxiliary charger;
- in dependence upon a first operating state of said engine which directly precedes an increase of a driver command torque, said means including means for forming said drive signal in such a manner that said charger increases the rpm thereof already during said first operating state;
- and,
- means for increasing the rpm of said electric charger during said first operating state to a pregiven value and/or with a pregiven slope.
An arrangement for controlling a charger of an internal combustion engine, the arrangement comprising:
- means for forming a drive signal for driving said charger;
- in dependence upon a first operating state of said engine which directly precedes an increase of a driver command torque, said means including means for forming said drive signal in such a manner that said charger increases the rpm thereof already during said first operating state;
- and,
- wherein a torque reserve is formed during said first operating state.
An arrangement for controlling a charger of an internal combustion engine, the arrangement comprising:
- means for forming a drive signal for driving said charger;
- in dependence upon a first operating state of said engine which directly precedes an increase of a driver command torque, said means including means for forming said drive signal in such a manner that said charger increases the rpm thereof already during said first operating state;
- and,
- wherein said charger is configured as a mechanical auxiliary charger;
- during said first operating state, said drive signal is configured in such a manner that a shift clutch of said mechanical auxiliary charger is closed to a crankshaft of said engine.
Dependencies are inferred from the claim text.