摘要:
In one embodiment an engine system includes a cylinder, an inlet valve configured to control the flow of gases into the cylinder, an outlet valve configured to control the flow of gases out of the cylinder, a throttle configured to control the flow of fuel into the cylinder, a memory including program instructions stored therein, and a processor operably connected to the inlet valve, the outlet valve, the throttle, and the memory, and configured to execute the program instructions to control the inlet valve and the outlet valve in accordance with an HCCI valve lift profile and an SI valve open/close profile, and activate a first spark in the cylinder while controlling the inlet valve and the outlet valve in accordance with the HCCI valve lift profile and the SI valve open/close profile.
摘要:
In one embodiment a method of controlling an engine system includes providing a first cylinder with a first inlet valve, a first outlet valve, and a first throttle, controlling the first inlet and the first outlet valve in accordance with an SI valve lift profile, activating a first spark in the first cylinder while controlling the first inlet and the first outlet valve in accordance with the SI valve lift profile, controlling the first inlet and the first outlet valve in accordance with an HCCI valve lift profile, activating a second spark in the first cylinder while controlling the first inlet and the first outlet valve in accordance with the HCCI valve lift profile, and controlling the SOI timing of the first throttle in an HCCI SOI mode while controlling the first inlet valve and the first outlet valve in the HCCI valve lift profile after activating the second spark.
摘要:
A combustion engine system in one embodiment includes a combustion engine, at least one controllable component operably connected to the combustion engine, at least one sensor configured to sense a parameter associated with the combustion engine, and an electronic control unit (ECU) operably connected to the at least one controllable component and the at least one sensor, wherein the ECU is configured to determine a temperature of an unburned mixture based upon the sensed parameter, and control the at least one controllable component based upon the determined temperature.
摘要:
An engine system uses data associated with at least one operating condition of an engine to set the engine system to an AI mode when the engine is in an SI mode 1) within first operating condition limits, and 2) when a rate of change of a first operating condition is within rate of change limits, maintain the engine system in the SI mode when the engine is outside of first operating condition limits or when the rate of change of the first operating condition is not within rate of change limits, set the engine system to the SI mode when the engine is in the AI mode outside second operating condition limits, and maintain the engine system in the AI mode when the engine is within second operating condition limits, wherein the second operating condition limits are different from the first operating condition limits.
摘要:
The invention relates to an adjustment device (1), particularly of a cross-section adjustment member, for providing a common torque on a drive shaft (7) of said adjustment device (1), said drive shaft being coupled to a drive. A cam disc (12) is provided connected to the drive shaft (7) in a rotationally fixed manner, the edge (13) of said cam disc deviating, at least in some areas, from a circular form and being subjected, at least at one circumferential position, to a force dependent on the rotational angle position of said cam disc (12) so as to produce an additional torque on the drive shaft (7) to support a drive torque of the drive. The drive torque and the additional torque together form the common torque. In addition, the invention relates to an exhaust gas turbocharger.
摘要:
The invention relates to a transmission system (1) for an adjustment device (2), in particular a wastegate (3) of an exhaust gas turbocharger, comprising a four-bar linkage mechanism (6), which has a driving arm (7) operatively connected to a drive, an output arm (8) and a coupler (9) which operatively connects the driving arm (7) and the output arm (8). To this end, at least one spring element (16) mounted with the first side (17) thereof on a housing (18) of the transmission system (1) is operatively connected with the second side (19) thereof to the driving arm (7), the output arm (8) and/or the coupler (9) to assist a movement of the four-bar linkage mechanism in at least one direction of movement. The invention further relates to an exhaust gas turbocharger.
摘要:
A combustion engine system in one embodiment includes a combustion engine, at least one controllable component operably connected to the combustion engine, at least one sensor configured to sense a parameter associated with the combustion engine, and an electronic control unit (ECU) operably connected to the at least one controllable component and the at least one sensor, wherein the ECU is configured to determine a temperature of an unburned mixture based upon the sensed parameter, and control the at least one controllable component based upon the determined temperature.