Method and device for matching engine and turbocharger

A turbocharger and engine technology, which is applied to instruments, internal combustion engine testing, manufacturing computing systems, etc., can solve problems such as increasing the cost of matching engines and turbochargers

Active Publication Date: 2010-11-24
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Car manufacturers need to spend a lot of money to develop matching

Method used

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  • Method and device for matching engine and turbocharger
  • Method and device for matching engine and turbocharger
  • Method and device for matching engine and turbocharger

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Such as figure 1 As shown, the embodiment of the present invention provides a method for matching the engine and the turbocharger, including:

[0043] Step 101: Obtain engine parameters from the action interface, wherein the action interface is composed of an Excel table;

[0044] Step 102: call the matching function formula of the engine and the turbocharger from the Excel function library, and calculate the pressure ratio, air flow, turbine flow parameter and turbo expansion ratio through the matching function formula according to the obtained engine parameters;

[0045] Step 103: Call the supercharger MAP diagram and turbine MAP diagram from the Excel library, fill the points determined by the pressure ratio and air flow into the supercharger MAP diagram, and fill the points determined by the turbine flow parameters and the turbo expansion ratio to the Turbo MAP diagram.

[0046] In the embodiment of the present invention, the engine parameters are obtained from th...

Embodiment 2

[0048] Such as figure 2 As shown, the embodiment of the present invention provides a method for matching the engine and the turbocharger, including:

[0049] Step 201: Draw and display the action interface on the Excel page, wherein the action interface is composed of an Excel table;

[0050] Among them, in this embodiment, the user can input engine parameters in the function interface, the engine parameters at least include fuel consumption rate, air filter pressure drop, exhaust back pressure, intercooler pressure drop, compressor inlet temperature, and intake air Manifold temperature. In addition, engine parameters may also include speed, torque, displacement, air-fuel ratio, volumetric efficiency, and swirl front temperature.

[0051] Specifically, select an Excel table on the Excel page, fill in the name of the engine parameters in the selected Excel table, select a threshold number of Excel tables for each engine parameter on the Excel page, and set the selected Excel...

Embodiment 3

[0092] Such as Figure 4 As shown, the embodiment of the present invention provides a device for matching the engine and the turbocharger, including:

[0093] An acquisition module 301, configured to acquire engine parameters from the action interface;

[0094] The calculation module 302 is used to call the matching function formula of the engine and the turbocharger from the Excel function library, and calculate the pressure ratio, air flow, turbine flow parameter and turbo expansion ratio according to the obtained engine parameters through the called matching function formula ;

[0095] The filling module 303 is used to call the supercharger MAP diagram and the turbine MAP diagram from the Excel library, fill the points determined by the pressure ratio and air flow into the called supercharger MAP diagram, and transfer the turbine flow parameters and the turbo expansion ratio The determined points are filled into the called TurboMAP graph.

[0096] Wherein, the acquisitio...

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PUM

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Abstract

The invention discloses a method and a device for matching an engine and a turbocharger, belonging to the technical field of engines. The method comprises the following steps: acquiring the parameters of the engine from an interface; calling the matching function formula of the engine and the turbocharger from an Excel function library, according to the parameters of the engine, calculating out pressure ratio, air mass flow, flow related parameters of a turbo and expansion ratio of the turbo through the matching function formula; and calling the MAP graph of a charger and the MAP graph of the turbo from an Excel graph library, filling points decided by the pressure ratio and the air mass flow to the MAP graph of the charger, and filling the points decided by the flow related parameters of the turbo and the expansion ratio of the turbo to the MAP graph of the turbo. The device comprises an acquisition module, a computation module and a filling module. The invention can reduce the cost for matching the engine and the turbocharger.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to a method and a device for matching an engine and a turbocharger. Background technique [0002] In the field of automobiles, engines equipped with turbochargers are widely used, wherein installing a turbocharger on the engine can greatly improve the performance of the engine. For an engine, a car manufacturer will select a turbocharger for the engine, and then install the optional turbocharger on the engine. [0003] At present, automobile manufacturers have developed matching software. For one engine and multiple turbochargers, the relevant parameters of the engine and each turbocharger are input into the matching software, and the matching operation is performed through the matching software to obtain the engine According to the matching result of each turbocharger, the technician selects which turbocharger according to the matching result. [0004] In the process of realizing...

Claims

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Application Information

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IPC IPC(8): G01M15/04
CPCG06Q50/04G06Q10/06Y02P90/30
Inventor 陈润生
Owner CHERY AUTOMOBILE CO LTD
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