Continental Automotive Gmbh

Christoph Förster

Matthias Wiese

Christian Gunselmann

A regulating method and a regulating device for actuating an actuator in an injection system for an internal combustion engine, may have the following steps: stipulation of a setpoint value for a controlled variable of the actuator; determination of an actual value of the controlled variable; determination of a setpoint/actual value deviation between the setpoint value and the actual value of the controlled variable; pilot control of a controlled variable in accordance with a predefined pilot control response as a function of the setpoint value; regulation of the controlled variable by a regulator output variable in accordance with a predefined regulating response as a function of the feedback setpoint/actual value deviation; actuation of the actuator with the pilot-controlled and regulated controlled variable; and determination of a characteristic variable of the injection system as a function of the regulator output variable.

Method for adapting a drag coefficient of a flow control valve

In a regulating method for controlling an electrical actuator, especially a valve for regulating a volume flow in an injection system for an internal combustion engine, a nominal value is set for an actuating variable of the actuator; the actuator is controlled by a pulse width-modulated electrical control signal with a pre-defined pulse duty factor and a pre-defined period for adjusting the desired nominal value of the actuating variable; a flow threshold value is determined according to the pre-defined nominal value for the actuating variable; the flow flowing through the actuator is continuously measured during the control by the control signal and before the end of the period; the measured flow is compared with the flow threshold value/and the flow flowing through the actuator is switched off before the end of the period of the control signal if the measured flow exceeds the current threshold value.

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Kriftel, Germany

Christoph Förster