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Method for driving internal combustion engine and device for controlling internal combustion engine

An internal combustion engine, ignition angle technology, applied in mechanical equipment, internal combustion piston engine, electrical control and other directions, can solve the problems of new internal combustion engine not meeting the ignition angle efficiency, inability to meet the operating conditions of the internal combustion engine, failures, etc., to achieve cost-effective, torque Calculation, the effect of precise torque calculation

Active Publication Date: 2015-07-29
ROBERT BOSCH GMBH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The disadvantage is that the once-determined ignition angle efficiency characteristic curve does not correspond to the actual ignition angle efficiency due to the aging of the internal combustion engine, serial deviations of new internal combustion engines and other influences, so that the rotational speed determined from this ignition angle efficiency for controlling the internal combustion engine The torque does not correspond to the actual operating conditions of the internal combustion engine and may cause malfunctions as a result

Method used

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  • Method for driving internal combustion engine and device for controlling internal combustion engine
  • Method for driving internal combustion engine and device for controlling internal combustion engine
  • Method for driving internal combustion engine and device for controlling internal combustion engine

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Embodiment Construction

[0025] figure 1 A device for detecting and evaluating combustion in an internal combustion engine 1 is shown. In the present example, the internal combustion engine 1 has four cylinders 2, 3, 4, 5 whose pistons, not shown in further detail, move in the cylinders 2, 3, 4, 5 respectively via connecting rods 6, 7, 8, 9 is connected to the crankshaft 10 and is driven by pressure changes induced during combustion. The cylinders 2 , 3 , 4 , 5 are connected to an intake duct 11 which is closed off with respect to an air intake duct 13 by means of a throttle valve 12 . In each cylinder 2 , 3 , 4 , 5 protrudes nozzles for injecting fuel, whereby a fuel-air mixture is formed. Furthermore, each cylinder 2 , 3 , 4 , 5 has an intake valve 15 for fresh air and an exhaust valve 16 for exhausting the exhaust gases produced during the combustion process, which only An example is shown for cylinder 5 . Arranged in combustion chamber 22 of each cylinder 2 , 3 , 4 , 5 is a pressure sensor 17 ...

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Abstract

The invention relates to a method for controlling an internal combustion engine, wherein an optimum ignition angle is compared with a currently output firing angle and from a difference of the optimum ignition angle and the currently output firing angle, a torque for driving the internal combustion engine (1) is discharged, wherein a deviation of the currently output ignition angle from the optimal ignition angle is represented via an ignition angle characteristic curve. In a method in which a reliable actual torque calculation depending on the lifetime of the internal combustion engine can be determined, the ignition angle characteristic curve is adaptively adjusted.

Description

technical field [0001] The invention relates to a method for controlling an internal combustion engine, in which method an optimum ignition angle is compared with a currently output ignition angle, and the difference between the optimum ignition angle and the currently output ignition angle is used to obtain The torque of an internal combustion engine is controlled, wherein the deviation of a currently output ignition angle from an optimum ignition angle is represented by an ignition angle efficiency characteristic curve. The invention also relates to a device for carrying out said method. Background technique [0002] In internal combustion engines, such as ignition engines, engine control systems are used in which the output torque is regulated via the ignition angle of the ignition engine. In this case, the actually occurring actual ignition angle of the internal combustion engine is preset and compared with the optimum ignition angle. In the event of a deviation between...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02P5/04
CPCF02D41/2451F02D2200/1004F02D2250/18F02D2250/22F02P5/151Y02T10/40
Inventor A·富克斯鲍尔U·米勒J·迈尔S·韦格纳M·弗勒利希A·C·乌尔里希S·戈特利布G·波滕
Owner ROBERT BOSCH GMBH
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