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Method and control device for identifying combustion processes of 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: 2020-06-19
VOLKSWAGEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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

Method used

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  • Method and control device for identifying combustion processes of an internal combustion engine of a hybrid vehicle
  • Method and control device for identifying combustion processes of an internal combustion engine of a hybrid vehicle
  • Method and control device for identifying combustion processes of an internal combustion engine of a hybrid vehicle

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Experimental program
Comparison scheme
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Embodiment Construction

[0065] exist figure 1 An embodiment of a drive train 1 for a hybrid vehicle is shown in . The drive train 1 of the hybrid vehicle includes an internal combustion engine 10 with a crankshaft 11 , an electric drive 12 and a disconnect clutch 13 , which is coupled via the disconnect clutch 13 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 disconnect clutch 13 . Hall sensor 15 scans sensor wheel 14 during rotation of crankshaft 11 and produces high resolution oscillatory speed signals 30, 31 as in Figure 2A , 2B shown exemplarily 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 and 2B Graphs 32 , 33 are shown on the left, respectively, in w...

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Abstract

The invention relates to a method (4) for identifying a combustion process of an internal combustion engine (10) of a hybrid vehicle, the internal combustion engine (10) having a crankshaft (11). The method (4) includes: obtaining (40) a rotational speed signal (30, 31) representing the rotational speed of the crankshaft (11); obtaining (41) a crankshaft angle signal representing the crankshaft angle of the crankshaft (11); and based on the rotational speed signal ( 30,31) and the crankshaft angle signal determine (42) whether combustion is taking place in the internal combustion engine (10).

Description

technical field [0001] The invention relates to a method and a control device for identifying the combustion process of an internal combustion engine of a hybrid vehicle. Background technique [0002] Hybrid vehicles are 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 a drivetrain. [0003] If, for example, in the event of a malfunction, in the event of a wrong fueling, etc., the internal combustion engine cannot provide or is only able to provide insufficient torque, it can occur during simultaneous operation of the internal combustion engine and the electric drive, ie in the operating mode "hybrid driving", the electric drive The device "drags" the internal combustion engine. The display the driver sees in this case is the speed signal of the internal combustion engine and is...

Claims

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Application Information

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Patent Type & Authority Patents(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