摘要:
The invention relates to a circuit for controlling electromechanically actuated gas exchange valves (5, 6). Placement control elements (2, 3) in said circuit control the output stage of the electromechanically actuated gas exchange valves (5, 6) and regulate the gentle placement of the gas exchange valves (5, 6) in their respective end positions. A digital communication computer (1) that is provided for communicating with the operational control device (9) of the internal combustion engine supplies time control signals to the placement control elements (2, 3). As a result, the placement control elements (2, 3) do not have to perform communications tasks and are devoted to placement control in real time.
摘要:
The regulating device comprises a regulating member and an actuator. The actuator has at least one electromagnet with a coil and a movable retaining plate. A first capture value (I_F1) is preset as a set value of the current by means of a first or a second coil (113, 115). A second capture value (I_F2) is preset as a set value when a first condition is met. A holding value (I_H) is preset as a set value when a second condition is met.
摘要:
An internal combustion engine has an intake tract, at least one cylinder, an exhaust gas tract, and inlet and outlet valves which are assigned to the cylinder. An exhaust gas pressure (pAG) prevalent in the cylinder during the valve overlap of the inlet and outlet valves is determined according to an assessed value of an exhaust gas pressure, said pressure being effected by the combustion of an air/fuel mixture in the cylinder, and according to a variable which characterizes the surface center of gravity of the valve overlap of the inlet and outlet valves. At least one actuating signal for controlling an actuator of the internal combustion engine is derived from the exhaust gas pressure (pAG) or the internal combustion engine is monitored according to the exhaust gas pressure (pAG).
摘要:
The regulating device comprises a regulating member and an actuator. The actuator has at least one electromagnet with a coil and a movable retaining plate. A first capture value (I_F1) is preset as a set value of the current by means of a first or a second coil (113, 115). A second capture value (I_F2) is preset as a set value when a first condition is met. A holding value (I_H) is preset as a set value when a second condition is met.
摘要:
The invention relates to a method for controlling an injection of an internal combustion engine. The invention provides that after the internal combustion engine is started, the injection and/or the ignition is carried out according to a signal of an absolute position sensor device, particularly according to an absolute position sensor of a camshaft or according to an absolute position sensor of a crankshaft and to an angular range sensor. When a synchronization signal is detected by a sensor wheel of the crankshaft, the following control processes are carried out according to the synchronization signal, i.e. according to the position of the crankshaft. The inventive method is advantageous in that immediately after the internal combustion engine is started, a relatively precise signal for controlling the injection and/or the ignition is available. This enables a more precise combustion shortly after the internal combustion engine is started.
摘要:
The invention relates to an actuator device which holds an actuator, for actuating a gas exchange valve of an internal combustion engine for instance, in an end position by means of a coil. The aim of the invention is to switch said actuator device into the other end position in time. To this end, the impingement of the coil with voltage is stopped a certain period of time tk before the moment when the actuator is released from the end position. The period of time tk is selected according to the supply voltage of the actuator device and/or of the coil current during holding in the end position. It is possible to adapt the period of time tk.
摘要:
The invention relates to an internal combustion engine having an electromechanical valve train, in which the valve control device (1) houses not only the output stage for electromechanical valve actuation but also the output stage (4) for the ignition system (7) and the output stage (6) for the fuel injection system (11). In this way, in case of failure of an electromechanically actuated valve (5a, 5b) the valve control device (1) is able to rapidly prevent the ignition of the air/fuel mixture in the cylinder (13) affected by the valve failure. Moreover, all output stages important for the thermal combustion process are combined in one control device, which is advantageously connected to a water cooling system.
摘要:
The invention relates to a control device which comprises a magnetic actuator (1), a final controlling element (2), a control unit (3) and a measuring device (4). The magnetic actuator (1) has a coil (10), a core (11), a spring (12) and an armature (13). The actuator (1) is connected to the final controlling element (2). The measuring device (4) determines an inductance value L of the coil (10) and produces in relation to the inductance value L a first control signal which is used to set at a hold value a theoretical value for the current through the coil (10). The current through the coil (10) is adjusted by the control unit (3) to the theoretical value when there is a pulse signal P.
摘要:
The invention relates to an internal combustion engine having an electromechanical valve train, in which the valve control device (1) houses not only the output stage for electromechanical valve actuation but also the output stage (4) for the ignition system (7) and the output stage (6) for the fuel injection system (11). In this way, in case of failure of an electromechanically actuated valve (5a, 5b) the valve control device (1) is able to rapidly prevent the ignition of the air/fuel mixture in the cylinder (13) affected by the valve failure. Moreover, all output stages important for the thermal combustion process are combined in one control device, which is advantageously connected to a water cooling system.