Abstract: A method for transferring packets of a communication protocol via a memory-based interface between two processing units. The method includes providing, in each of the processing units, a send area including a read index section, a write index section, and a send buffer, and a receive area including a read index section, a write index section and a receive buffer. Each processing unit repeats as sending steps: reading a read index from the receive area; writing at least one send packet into the send buffer (from a starting write address to an ending write address, the ending write address maximally corresponding to a buffer address assigned to the read read index, and writing a changed write index into the send area.

Abstract: A method for transferring packets of a communication protocol via a memory-based interface between two processing units. The method includes providing, in each of the processing units, a send area including a read index section, a write index section, and a send buffer, and a receive area including a read index section, a write index section and a receive buffer. Each processing unit repeats as sending steps: reading a read index from the receive area; writing at least one send packet into the send buffer (from a starting write address to an ending write address, the ending write address maximally corresponding to a buffer address assigned to the read read index, and writing a changed write index into the send area.

Abstract: In a method for determining a low pressure exhaust gas recirculation mass flow {dot over (m)}Opt in the air system of an internal combustion engine (10) with low pressure exhaust gas recirculation, the determination of the low pressure exhaust gas recirculation mass flow {dot over (m)}Opt involves a preliminary low pressure exhaust gas recirculation mass flow {dot over (m)}EGRLPDs which is determined from a function involving, in particular, the pressure p42 upstream and the pressure p12 downstream of a low pressure side exhaust gas recirculation valve EGRVIvLP (29), the temperature TEGRVIvPUs downstream of the low pressure side exhaust gas recirculation valve (29), and the geometry arEGRVIvLP of the low pressure side exhaust gas recirculation valve (29). According to the invention, at least one mass balance based variable is also considered in the determination of the low pressure exhaust gas recirculation mass flow {dot over (m)}Opt.

Abstract: In a method for determining a low pressure exhaust gas recirculation mass flow in the air system of an internal combustion engine (10) with low pressure exhaust gas recirculation, the determination of the low pressure exhaust gas recirculation mass flow involves a preliminary low pressure exhaust gas recirculation mass flow which is determined from a function involving, in particular, the pressure p42 upstream and the pressure p12 downstream of a low pressure side exhaust gas recirculation valve EGRVIvLP (29), the temperature TEGRVIvPUs downstream of the low pressure side exhaust gas recirculation valve (29), and the geometry arEGRVIvLP of the low pressure side exhaust gas recirculation valve (29). According to the invention, at least one mass balance based variable is also considered in the determination of the low pressure exhaust gas recirculation mass flow .

Abstract: A method and control unit for metering fuel into at least one combustion chamber of an internal combustion engine comprising at least one pilot injection and one main injection per combustion cycle, combustion features being detected and an effect of a fuel quantity injected prior to the main injection being ascertained from the combustion features. An actual value of a combined effect of at least two pilot injections per combustion cycle is ascertained and the actual value is regulated to a setpoint value via an intervention on at least one of the pilot injections.

Abstract: A method and control unit for metering fuel into at least one combustion chamber of an internal combustion engine comprising at least one pilot injection and one main injection per combustion cycle, combustion features being detected and an effect of a fuel quantity injected prior to the main injection being ascertained from the combustion features. An actual value of a combined effect of at least two pilot injections per combustion cycle is ascertained and the actual value is regulated to a setpoint value via an intervention on at least one of the pilot injections.