초록 ▼

An arrangement includes a first controller which is only switched through to an actuator for a turbocharger if a fault recognition device detects no fault in the operation of the engine. A switchover is made from the first controller to a second controller, if the fault recognition device detects a

An arrangement includes a first controller which is only switched through to an actuator for a turbocharger if a fault recognition device detects no fault in the operation of the engine. A switchover is made from the first controller to a second controller, if the fault recognition device detects a critical fault. In this connection, the second controller receives a system deviation as an input signal that is different from the one received by the first controller. Thus in the event of a fault, the turbocharger can be controlled in a very flexible manner without the danger that the speed of the turbocharger is increased into its critical range.

대표청구항 ▼

[ What is claimed is:] [1.]1. An arrangement for controlling a boost pressure of an internal combustion engine, comprising:at least one turbocharger arranged in at least one exhaust line of an internal combustion engine;an air pressure sensor arranged in an intake path on a pressure side of the at l

[ What is claimed is:] [1.]1. An arrangement for controlling a boost pressure of an internal combustion engine, comprising:at least one turbocharger arranged in at least one exhaust line of an internal combustion engine;an air pressure sensor arranged in an intake path on a pressure side of the at least on turbocharger, the air pressure sensor measuring a boost pressure;an air mass sensor arranged in an intake path on a suction side of the at least on turbocharger, the air mass sensor measuring an air mass;an actuator acting on the at least on turbocharger;a fault recognition device;a first controller receiving a first system deviation as an input signal, the first controller being switched through to the actuator only when the fault recognition device detects no fault in an operation of the internal combustion engine that is critical for the at least one turbocharger, an actual value of the first system deviation being the boost pressure; anda second controller receiving a second system deviation as an input signal, a switchover being made from the first controller to the second controller when the fault recognition device detects a critical fault, an actual value of the second system deviation being the air mass.