Abstract:
A fuel supply unit (1) is provided e.g. a carbu rettor or a low pressure injection system of an internal combustion engine. The fuel supply unit (1) include s a main air passage (3), which has a throttle valve (8, 9) mount ed therein and the throttle valve (8, 9) includes a throttle shaft (8 ) extending between two to one another opposite located shaft sides (6, 7). A control module (2) for th e fuel supply (2) is mounted to one (7) of the shaft sides (6, 7), which control modul e (2) includes throttl e position detecting means (30; 300) for monitoring the position of the throttle valve (8, 9), and fuel valve means (60) for controlling th e fuel supply to the main air passage (3). Also, an ignition system is provided which is able to control the ignition timing with respect to status of the at least one of the means (30; 300, 40, 60, 100) in the control module (2) in order to at least control the idle speed of the engine. The ignition system further being arranged to power at least one of the means (30; 300, 40, 60, 100) of the control module (2).
Abstract:
The valve timing control is executed by an ECU (4000) that controls an engine and an electric-motor ECU (4100) that control an electric motor (2060). The ECU (4000) and the electric-motor EDU (4100) serve different functions. The ECU (4000) sets the target phase of an intake valve based on the engine operating state, and prepares the rotational speed command value (Nmref) for the electric motor (2060) that serves as an actuator such that a phase feedback control loop (7000), in which the intake valve phase is caused to match the target phase, is formed. The electric-motor EDU (4100) forms a feedback control loop (7100) for the motor speed, in which the electric power (PW) supplied to the electric motor (2060) is controlled such that the electric motor (2060) rotates in accordance with the rotational speed command value (Nmref).
Abstract:
Die Erfindung betrifft ein Verfahren zur Leerhubsteuerung einer Kraftstoff einspritzvorrichtung, insbesondere eines Piezoinjektors. Dabei wird der Piezoaktor gezielt über eine Vorrichtung mit einem berechneten Energiebetrag angesteuert, um jeweils einen definierten Leerhub einzustellen.
Abstract:
Es wird beschrieben ein Verfahren zur Regenerierung eines Partikelfilters, der im Abgaskanal einer Brennkraftmaschine angeordnet ist, der Partikel aus im Abgaskanal strömenden Abgas filtert und im laufenden Betrieb intermittierend regeneriert wird, wobei der Brennkraftmaschine zugeführte Ist-Luftmassenstrom (Lexp) gemessen wird, und der Luftbedarf (Lcalc) der Brennkraftmaschine ermittelt wird eine Regenerierung des Partikelfilters auf Grundlage einer Abweichung (DL) zwischen Luftmassenstrom und Luftbedarf eingeleitet wird.
Abstract:
The invention relates to a method and a device for actuating a setting element, especially for adjusting a throttle valve in the induction tract of an internal combustion engine. Said setting element comprises an electromotor. According to prior art, the position of the setting element is detected by means of sensors for obtaining data on malfunctions for instance. Said data can be used in the engine control. Sensors, however, are susceptible to interference, especially since additional components have to be used. According to the invention, the engine current (I) is observed for a period of time (t). The setting device functions well as long as the current is situated within a defined measuring window (20). Malfunctions represented by the curves B, C and D are detected when the motor current (I) disappears from the measuring window. One arithmetic unit only is required for detecting the error. Said unit conveys the error to the engine control for instance.
Abstract:
An output controller of an internal combustion engine of this invention determines a target torque of a driving shaft in an automobile based on a step-in stroke of an acceleration pedal, determines the difference between this target torque and an actual torque of the driving shaft and determines a steady output torque necessary for providing the target torque to the driving shaft by assuming that the automobile inclusive of the internal combustion engine as a whole is in a steady operating state. In the output controller, a steady intake of the internal combustion engine which provides the steady output torque to the engine is determined and corrected by a feedback quantity based on the difference described above. In this manner, a target intake of the internal combustion engine is determined and the opening of the throttle valve is controlled so as to attain this target intake.
Abstract:
본 발명은 건설기계의 제어장치 및 제어방법에 관한 것으로, 본 발명의 실시예에 따른 건설기계의 제어장치는 연비 맵을 바탕으로 엔진회전수를 감소시킨 경우에 기대되는 연비 이득과 연비 맵에 포함된 복수의 토크 선도 중에 보조 동력이 제공된 조건에 해당하는 토크 선도로 변경시켜 선택 적용한 경우에 기대되는 연비 이득을 비교하여 더 큰 연비 이득이 기대되는 방법으로 엔진을 제어할 수 있다.
Abstract:
In an internal combustion engine, an ignition plug is arranged near a center of an upper wall surface of a combustion chamber, and is used to ignite air-fuel mixture. Fuel injected from a port fuel injection valve is directed toward the center of the combustion chamber when the intake valve is open. The engine is configured to generate a tumble flow in a cylinder. A flow speed of gas around the ignition plug during ignition is controlled by changing a pattern of tumble flow between an ordinary first tumble flow pattern (engine speed range R1) and a different second tumble flow pattern (engine speed range R2) on the basis of an engine rotation speed. The tumble flow having the second pattern is generated by overlapping a fuel injection period of the port fuel injection valve with the open period of the intake valve (intake synchronous injection mode).
Abstract:
Die Erfindung betrifft ein Stellgebersystem (1), insbesondere zum Betreiben einer Klappe in einem Kraftfahrzeug, umfassend: - einen Antrieb (4) mit einem elektronisch kommutierten Elektromotor; - ein bewegbares Stellglied (6); - eine Mechanik (5), die den Antrieb mit dem Stellglied (6) koppelt, so dass bei Ansteuern des Antriebs eine Verstellung des Stellglieds bewirkt wird; - einen Positionssensor (7) zum Erfassen einer Position des Stellglieds (6) an dem Stellglied (6) und zum Bereitstellen einer entsprechenden Positionsangabe; - ein Steuergerät (3), um den Antrieb zum Bewegen des Stellglieds (6) anzusteuern; wobei der Elektromotor des Antriebs (4) elektronisch kommutiert ist, wobei das Steuergerät (3) ausgebildet ist, um zum Bewegen des Stellglieds (6) von der bereitgestellten Positionsangabe abhängige Ansteuersignale an den Elektromotor bereitzustellen, die ein vorgegebenes Antriebsmoment bzw. eine vorgegebene Drehzahl des Elektromotors bewirken.