摘要:
An electronic circuit for detecting measured quantities, having a sensor unit for generating an analog measurement signal and having a signal detecting unit (120) with a first analog/digital converter for digitizing the analog measurement signal. Differences in the fluctuations of the supply voltages that are supplied to the sensor unit and the signal detecting unit essentially result in the generation of undesirable fluctuations in the measurement signal. To minimize these effects or compensate for them, the digitized measurement signal is corrected in response to a voltage signal (U) that represents the imprecision x1 of the first supply voltage (VS1).
摘要:
An electronic circuit for detecting measured quantities has a sensor unit for generating an analog measurement signal and a signal detecting unit (120) with a first analog/digital converter for digitizing the analog measurement signal. Differences in the fluctuations of the supply voltages that are supplied to the sensor unit and the signal detecting unit essentially result in the generation of undesirable fluctuations in the measurement signal. To minimize these effects or compensate for them, the digitized measurement signal is corrected In response to a voltage signal (U) that represents the imprecision x1 of the first supply voltage (VS1).
摘要:
A method and a device are provided for operating an internal combustion engine, which make possible an improved characteristics curve correction of an actuator in an air supply of the internal combustion engine. In the process, an air mass flow supplied to the internal combustion engine is influenced via the actuator in an air supply. For the setting of an actuating position of the actuator having a specified, e.g., minimum, air mass flow, starting from a specified actuating position, the actuator is moved by an offset value of the actuating position. The offset value of the actuating position is corrected as a function of an offset value for the air mass flow.
摘要:
A method and a device are provided for operating an internal combustion engine, which make possible an improved characteristics curve correction of an actuator in an air supply of the internal combustion engine. In the process, an air mass flow supplied to the internal combustion engine is influenced via the actuator in an air supply. For the setting of an actuating position of the actuator having a specified, e.g., minimum, air mass flow, starting from a specified actuating position, the actuator is moved by an offset value of the actuating position. The offset value of the actuating position is corrected as a function of an offset value for the air mass flow.
摘要:
In a method for monitoring a camshaft adjustment of an internal combustion engine in which a setpoint value of an angular position is compared with an actual value of the angular position, a more differentiated fault diagnosis is achieved in that at least two fault types are able to be detected on the basis of the profile of the actual value over time.
摘要:
The invention is directed to a method and an arrangement for controlling the position of an actuating element (1) which prevent damage to the actuating element by a collision with at least one stop (25, 30) and simultaneously ensure good dynamic characteristics. The position of the actuating element (1) tracks a desired value within a displacement range. The displacement range is limited for the actuating element (1) by at least one stop (25, 30). A check is made as to whether the distance between the desired value for the position of the actuating element (1) and the at least one stop (25, 30) drops below a pregiven value (S1). Only in this case is a change of the desired value limited.
摘要:
In a method for monitoring a camshaft adjustment of an internal combustion engine in which a setpoint value of an angular position is compared with an actual value of the angular position, a more differentiated fault diagnosis is achieved in that at least two fault types are able to be detected on the basis of the profile of the actual value over time.
摘要:
A method and a device are provided for operating an internal combustion engine, which make possible an improved characteristics curve correction of an actuator in an air supply of the internal combustion engine. In the process, an air mass flow supplied to the internal combustion engine is influenced via the actuator in an air supply. For the setting of an actuating position of the actuator having a specified, e.g., minimum, air mass flow, starting from a specified actuating position, the actuator is moved by an offset value of the actuating position. The offset value of the actuating position is corrected as a function of an offset value for the air mass flow.
摘要:
A method and a control unit for driving a control circuit (1) are suggested which make possible an improved distribution of the generated power loss. A component (15), especially of a motor vehicle, is driven via at least two outputs (5, 10) of the control circuit (1). Each output (5, 10) is connected pairwise to one of several potentials (40, 45) via controllable switch means (20, 25; 30, 35) and a drive voltage (UA) is formed for the component (15) from a difference between the potentials at the two outputs (5, 10). A pregiven clocked course of the drive voltage (UA) is adjusted by switching more than one of the controllable switch devices (20, 25; 30, 35).
摘要:
In an internal combustion engine, combustion air is supplied to at least one combustion chamber via at least one intake duct. The intake duct includes at least two parallel control sections, to each of which one final controlling device is allocated. Using these final controlling devices, the flow cross-section of the particular control section may be influenced. At least two final controlling devices are activated based on one single setpoint variable, and, in fact, using only one control and/or regulating system associated with the intake duct.