摘要:
The invention relates to a method for operating a drive unit (1) in a motor vehicle, said drive unit (1) comprising a reciprocating engine (2) and a turbocharger (5); the reciprocating engine (2) operates in a 4-stroke mode during on-load operation, and the turbocharger (5) includes an electric machine (12), in particular a media gap machine, that functions as a generator during overrun operation of the reciprocating engine (2). According to the invention, the reciprocating engine (2) is operated in a 2-stroke mode during overrun operation.
摘要:
The invention relates to a turbocharger (1), in particular for a motor vehicle, having a compressor (2) which has a compressor wheel (4) arranged on a rotatably mounted shaft (5), wherein in a pipe section (9) of an axial compressor inlet (10) there is arranged an electric machine (11) which has a rotor (7) arranged on the shaft (5) and a stator (8) arranged on the pipe section (9). Provision is made for the stator (8) to have a plurality of webs (16) which project inwards, extend at least substantially axially, and are arranged so as to be distributed over the circumference, and which are arranged at a distance from one another in order to form flow channels (17) that extend at least substantially axially.
摘要:
The invention relates to a transmission assembly (1) for an adjusting device, in particular a waste gate of an exhaust gas turbocharger, having a four-bar coupling mechanism (2), which has a drive crank (3) operatively connected to a drive via a mechanism (11), an output crank (4) and a coupler (5) operatively connecting the drive crank (3) and the output crank (4), the transmission (11) having a drive gear (12) assigned to the drive and an output gear (13) assigned to the drive crank (4) and interacting with the drive gear (12). The invention provides for the drive gear (12) to have a rolling curve radius (r 1 , r 2 ,r 3 ) that changes over the circumference and for the output gear (13) to have a rolling curve radius (r' 1 , r' 2 ,r' 3 ) running in complementary fashion thereto, wherein the rolling curve radii (r 1 , r 2 , r 3 ; r' 1 , r' 2 , r' 3 ) are chosen in a rotational angle range around the extended position of the four-bar coupling mechanism (2), at least in some regions, to form a first transmission ratio of the transmission (11) and, outside the rotational angle range, to form at least one second transmission ratio that is higher than the first transmission ratio. The invention further relates to an exhaust gas turbocharger.
摘要:
The invention relates to a pulsed compressor for internal combustion engines (1), whereby the pulsed compressor (13) is housed in a charged air inlet line (9). The flow cross-sectional area of the charged air inlet (9) for a charged air flow (48) is opened or closed by means of the pulsed compressor (13). Said pulse compressor (13) comprises two synchronously operated rotary vane elements (30, 31; 51, 52).
摘要:
The invention relates to a device and a method for storing and/or evaluating data in a memory in a vehicle. The data is transmitted in the vehicle via a data bus (108). Components such as vehicle systems (111, 112, 113), sensors (114), actuators (115) and additional vehicle components (116) are connected and can be connected to the data bus (108). The memory is configured as a central memory medium (101) for the components connected to the data bus and is also connected to the data bus. The data is permanently stored in the memory medium (101) during the entire utilisation period of the vehicle. In a preferred embodiment, the data is interpreted by evaluation means (102-104) which can be connected to the memory medium in such a way that a measure for the utilisation and/or wear and tear of the vehicle and/or the components is produced.
摘要:
The present invention relates to a device for suppressing engine knocking in an internal combustion engine. Said device comprises a detector for detecting the respective operating parameters in the internal combustion engine. The device also comprises a control unit which determines the manipulating variables for the injection and ignition according to determined operating parameters. The device further comprises a dynamic phase detector for detecting a dynamic phase in the internal combustion engine and an adjusting device for adjusting the manipulating variables of the ignition, whereby said device is designed in such a way that the ignition actuating variable can be delayed by a dynamic derivative action (wkrdya) that depends on a predetermined difference in weight (ΔrlPr) when the ignition actuating variable is in a dynamic knocking suppression phase, whereby said dynamic phase is determined by the dynamic phase detector. When the dynamic phase is over, the ignition actuating variable can gradually be readjusted to the manipulating variable that is determined by the control unit.
摘要:
The invention relates to a protective system for a supercharged internal combustion engine. In normal operation, supercharging is set and/or regulated at a predeterminable reference value (P reference). There are various protective neasures in case of overcharging of the engine which act depending on the excess supercharging. In a first protective measure, the setting or regulation of the supercharging is cut out and an adjuster which affects the supercharging is set to a predetermined position. In a second protective measure, the fuel feed to individual cylinders is interrupted according to a predetermined cut-out programme. If this cannot adequately reduce the supercharging, other cut-out programmes with greater cut-out frequencies are introduced in succession.
摘要:
The proposal is for a process for the adaptive knock control of an internal combustion engine designed to adjust the angular ignition spacing of an engine in the 'delay' direction when knocking occurs and then in the 'advance' direction. At the same time the engine is to have sub-divided operating ranges in which a delay value found during operation in a range is always stored when that range is left. Especially an average of all the angular ignition spacings issued in a range or a delay value added by a digital low-pass is to be stored hereby.