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Method and controller for recognizing a combustion process in an internal combustion engine of a hybrid vehicle

A hybrid vehicle, combustion process technology, applied in hybrid vehicles, engine control, fuel injection control, etc.

Active Publication Date: 2017-08-18
VOLKSWAGEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method requires a device for measuring the actual torque

Method used

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  • Method and controller for recognizing a combustion process in an internal combustion engine of a hybrid vehicle
  • Method and controller for recognizing a combustion process in an internal combustion engine of a hybrid vehicle
  • Method and controller for recognizing a combustion process in an internal combustion engine of a hybrid vehicle

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Embodiment Construction

[0065] exist figure 1 An example of a drive train 1 for a hybrid vehicle is shown in FIG. The drive train 1 of a hybrid vehicle comprises an internal combustion engine 10 with a crankshaft 11 , an electric drive 12 and a separating clutch 13 via which the electric drive 12 is coupled to the crankshaft 11 of the internal combustion engine 10 .

[0066] The drive train 1 also contains a rotational speed sensor with a sensor wheel 14 with 58 teeth 140 and a Hall sensor 15 . The sensor wheel 14 is fastened on the crankshaft 11 between the internal combustion engine 10 and the separating clutch 13 . Hall sensor 15 scans sensor wheel 14 during rotation of crankshaft 11 and produces high resolution oscillating speed signals 30, 31 as in Figure 2A , 2B exemplarily shown in . The rotational speed signals 30 , 31 of the Hall sensor 15 are routed to the control device 2 via the data bus 16 .

[0067] Figure 2A with 2B The graphs 32 , 33 are shown on the left, in which the rotati...

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Abstract

The present invention relates to a method (4) for recognizing a combustion process in an internal combustion engine (10) of a hybrid vehicle having a crankshaft (11). The method (4) includes the generation (40) of a speed of rotation signal (30, 31) which represents a speed of rotation of the crankshaft (11), the generation (41) of a crankshaft angle signal which represents an angle of the crankshaft (11), and the determination (42) of whether combustion is taking place in the internal combustion engine (10) on the basis of the speed of rotation signal (30, 31) and of the crankshaft angle signal.

Description

technical field [0001] The invention relates to a method and a control device for detecting a combustion process of an internal combustion engine of a hybrid vehicle. Background technique [0002] A hybrid vehicle is characterized by two different types of drive trains, which can be operated simultaneously, ie mixed, or independently of each other, depending on the situation. Hybrid vehicles often contain an internal combustion engine and an electric drive as the drive train. [0003] If the internal combustion engine is not able to provide or only insufficient torque, for example in the event of a fault, wrong fueling, etc., this can occur during simultaneous operation of the internal combustion engine and the electric drive, i.e. in the operating mode "mixed driving", the electric drive The device "drags" the internal combustion engine. The display that the driver sees in this case is the rotational speed signal of the internal combustion engine and assumes that it is fu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D41/00F02D41/22B60W50/02B60W20/00
CPCB60W50/0205F02D41/009F02D41/0097F02D41/22F02D2200/101B60W20/00B60W2510/0638B60W2510/0685B60W10/06B60Y2200/92B60W20/40B60W20/50B60W50/14F02D41/26F02D2041/228
Inventor N.韦斯C.皮亚塞茨基S.特雷贝休斯G.弗赖瓦尔德F.托尔
Owner VOLKSWAGEN AG
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