Method and arrangement for controlling the charge pressure of an exhaust-gas turbocharger
AssigneeRobert Bosch GmbH
InventorsMichael Baeuerle, Carsten Reisinger, Guido Porten
Life of this patent
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Abstract
The invention is directed to a method and an arrangement for controlling the charging pressure of an exhaust-gas turbocharger (1) wherein a charging pressure actual value (pvdkds) is tracked to a charging pressure desired value (plsoll). The charging pressure of the exhaust-gas turbocharger (1) is controlled in dependence upon a characteristic variable of an electric auxiliary charger (5). The electric auxiliary charger (5) coacts with the exhaust-gas turbocharger (1) for compressing the inducted air. In this way, an unnecessary opening of a bypass valve of the exhaust-gas turbocharger (1) is avoided.
Claims19
A method for controlling the charge pressure of an exhaust-gas turbocharger, the method comprising the steps of:
- causing a charge pressure actual value (pvdkds) to track a charge pressure desired value (plsoll);
- and,
- controlling the charge pressure of said exhaust-gas turbocharger in dependence upon a characteristic quantity of an electric auxiliary charger coacting with said exhaust-gas turbocharger to compress the inducted air.
An arrangement for controlling the charge pressure of an exhaust-gas turbocharger, the arrangement comprising:
- means for causing a charge pressure actual value (pvdkds) to track a charge pressure desired value (plsoll);
- and,
- means for controlling the charge pressure of said exhaust-gas turbocharger in dependence upon a characteristic quantity of an electric auxiliary charger coacting with said exhaust-gas turbocharger to compress the inducted air.
Dependencies are inferred from the claim text.