Pre-control of internal combustion engines
An internal combustion engine, pre-control technology, applied in engine control, machine/engine, fuel injection control, etc., can solve the problems of actuator influence, imprecise control, low quality, etc., to achieve the effect of improving operation
Active Publication Date: 2021-05-07
VTESCO TECH GMBH
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Problems solved by technology
[0006] However, actuators are subject to inaccuracies that can significantly affect the pilot control
For example, the actual position of the actuator may differ from its expected position due to wear, dispersion or temperature effects
In this case, it is difficult to perform pre-control based on the main parameters of the internal combustion engine
Combustion results can be of low quality, resulting in increased environmental pollution by internal combustion engines
Method used
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Embodiment Construction
[0024] figure 1 Internal combustion engine 100 is shown with mixing preparation 105 . Internal combustion engine 100 can be designed especially for operation in a motor vehicle. Internal combustion engine 100 preferably comprises a multi-cylinder reciprocating piston engine. The mixing preparation 105 is connected to several sensors 125 and actuators 130 . The purpose of the mixing preparation 105 is to determine the amount of fuel that should be injected into the internal combustion engine 100 for combustion. In one embodiment, the mix preparation 105 is designed to actuate the fuel injector 135 for dispensing the determined amount of fuel. The amount of fuel is generally determined with respect to one or more parameters that can be tapped from internal combustion engine 100 . For example, one of the sensors 125 can include an air flow meter, a rotational speed sensor, or a torque sensor. Further sensors are also possible and can determine, for example, different tempera...
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The invention relates to a method for the pre-control of the mixing preparation (105) of an internal combustion engine (100), comprising the steps of: determining the configuration of the internal combustion engine (100), wherein the configuration is performed by means of a plurality of actuators ( Combination realization of discrete positions of 130), a plurality of actuators (130) influencing the operating parameters of the internal combustion engine; determination of a constant modification share of the mixing preparation (105) by means of the exhaust gas probe of the internal combustion engine (100) ( 140 ) is fed back; the constant modification share and the associated configuration are stored; and the pre-control of the mixing preparation ( 105 ) is performed with the constant modification share when the internal combustion engine is operating with the same configuration.
Description
technical field [0001] The invention relates to the hybrid preparation of internal combustion engines. In particular, the invention relates to mixing preparations in pre-control mode. Background technique [0002] Internal combustion engines, especially reciprocating piston internal combustion engines such as those onboard motor vehicles, operate by means of a mixing preparation that determines the quantity or mass of fuel to be injected into the internal combustion engine on the basis of parameters affecting the operation of the internal combustion engine. Furthermore, the mixing preparation evaluates the signal from a lambda probe, which is arranged in the exhaust tract of the internal combustion engine and indicates whether the combustion is taking place stoichiometrically (that is to say neither excess fuel nor excess air). [0003] In order to be able to always adapt the internal combustion engine in an improved manner to an extremely wide range of operating points, op...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F02D41/14F02D41/24F02D13/02
CPCF02D13/0207F02D13/0219F02D41/1402F02D41/1454F02D41/2445F02D41/2454F02D41/2464F02D2041/141F02D41/2461
Inventor J-R.伦克S.维赫弗
Owner VTESCO TECH GMBH