Rapid bench examination and modeling method for engine

An engine and bench test technology, which is applied in the direction of engine testing, machine/structural component testing, simulators, etc., can solve problems such as discontinuity of combustion parameters, inability to use engines flexibly, and application limitations

Inactive Publication Date: 2008-11-12
GM GLOBAL TECH OPERATIONS LLC
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Problems solved by technology

Therefore, the application of this method is limited and it is not suitable for engines with multiple complex control options
In addition, the prediction of combustion parameters is carried out in the neighborhood of the reference point, as long as the model is switched to a different reference point, it will cause discontinuity in the obtained combustion parameters
Finally,

Method used

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  • Rapid bench examination and modeling method for engine
  • Rapid bench examination and modeling method for engine
  • Rapid bench examination and modeling method for engine

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Embodiment Construction

[0018] The following description of the preferred embodiment is exemplary only in nature and does not limit the invention and its application or use in any way. For purposes of clarity, the same reference numbers will be used in the drawings to refer to similar parts. The term "module" as used herein refers to an Application Specific Integrated Circuit (ASIC), an electronic circuit or processor (shared, dedicated or grouped) and a memory executing one or more software or fixed programs, a combinational logic circuit or providing other cooperating elements of the described function.

[0019] Referring now to FIG. 1 , an exemplary engine system 10 includes an engine 12 having an intake manifold 14 and an exhaust manifold 16 . Air is drawn into an intake manifold 14 through a throttle valve 18 and distributed to cylinders 20 . More specifically, fuel injector 22 injects fuel into the air within intake port 24 to provide an air-fuel mixture. This air-fuel mixture is drawn into ...

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Abstract

The invention discloses a bench testing method during the development process of an engine as well as a method for building an engine model, including testing the engine under the operation conditions of a plurality of actual engines and searching the actual engine data which accords with the operation conditions of the actual engine; confirming a plurality of parameter functions based on the actual engine data and each parameter function is corresponding to one operation parameter of the engine; generating a plurality of combustion functions used for the operation conditions of a plurality of engines which include a plurality of the operation conditions of the actual engines and a plurality of the operation conditions of virtual engines; calibrating the virtual model of the engine based on a plurality of combustion parameters and applying the virtual model to carry out bench testing on a plurality of engines.

Description

technical field [0001] The present invention relates to internal combustion engine development, and more particularly to a method for rapid internal combustion engine bench testing and modeling that improves and simplifies the engine development process. Background technique [0002] The statements in this section merely provide background material related to the present invention and may not constitute prior art. [0003] Internal combustion engines generate drive torque by combusting an air-fuel mixture. More specifically, air is drawn into the intake manifold through the throttle valve, where it is distributed to the cylinders and mixed with fuel. This air-fuel mixture is compressed within the cylinder by a reciprocating piston. The compressed air-fuel mixture is combusted and the resulting combustion drives the pistons in the cylinders, which rotationally drive the crankshaft. [0004] Advances in automotive engine technology have resulted in engines being equipped wi...

Claims

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Application Information

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IPC IPC(8): G06F17/50G01M15/00
CPCG05B17/02
Inventor B·李Y·G·古泽恩内
Owner GM GLOBAL TECH OPERATIONS LLC
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